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i E/GOVERNMENT OF INDIA +iI M/DEPARTMENT OF SPACE

G

07

VSSC/PRSOPURCH/2018E1192601

[ ////TWO PART]

! Safety surveillance cameras

22

./Nos

' 67 ' 67 ' 67 ' 67 (((() ) ) )

EXPRESSION OF INTEREST (EOI)

08 VSSC/EOI/SPM & IG/2018-19

T () U ()

< ' 67 Expression of Interest for Processing and Supply of Special

Purpose Motors (SPMs) and Igniter Grain (IGs)

09 60162018002576 !

' 67 *

B Interested prospective Manufacturers can furnish their Request for Proposal quoting our

reference No. on or before 31.08.2018 [16:00 Hrs.] for Sl no.8 &26.09.2018 [16:00 Hrs.] for Sl.no.9 to the address mentioned in the EOI

xn V Ex E +i il Last Date for issue of Tender Forms

(G ./ Sl. No. 1

10/09/2018 16:00 V iE/up to 16:00 Hrs.

xn Ei E xi il Due Date for Receipt of Tender

(G ./ Sl. No. 1

11/09/2018 16:00 V iE/up to 16:00 Hrs.

xn Jx E il / Tender Opening Date

xn E b=xb Ex E - / Time limit for download of Tender Forms

(G ./against Sl. No. 2)



(G ./against Sl. No.5)

(G ./against Sl. No.6)


Upto 20.08.2018 [14:00 Hrs.]

Upto 28.08.2018 [14:00 Hrs.]

Upto 28.08.2018 [14:00 Hrs.]

Upto 20.08.2018 [14:00 Hrs.]

Upto 30.08.2018 [14:00 Hrs.]

Upto 17.09.2018 [14:00 Hrs.]

|ii Ex E - / Time limit for submission of Bid







Upto 20.08.2018 [14:00 Hrs.]

Upto 28.08.2018 [14:00 Hrs.]

Upto 28.08.2018 [14:00Hrs.]

Upto 20.08.2018 [14:00 Hrs.]

Upto 30.08.2018 [14:00 Hrs.]

Upto 17.09.2018 [14:00 Hrs.]

Jx E il/ Bid Opening date G ./against Sl. No. 2)






28.08.2018 [10:01 Hrs.]

31.08.2018 [10:01 Hrs.]

04.09.2018 [10:01 Hrs.]

28.08.2018 [10:01 Hrs.]

04.09.2018 [10:31 Hrs.]

21.09.2018 [14:01 Hrs.]

. 1 ? www.isro.gov.in /

www.vssc.gov.in Y

EMD applicable for tender at Sl. No. 1 and details are available on ISRO Website

www.isro.gov.in / VSSC Website www.vssc.gov.in

. 2 7 -

Corrigendum, if any will be published in our websites: www.vssc.gov.in / www.isro.gov.in only.

iIi/Sd/- |vx, G B b / Sr.Head, Purchase & Stores

Note :-

1. Full details and specifications of the items and general instructions to be followed regarding submission of tenders are indicated in the tender documents.

2. Tender Documents can be downloaded from our websites and also be obtained

from the following address on request and submission of tender fee :

For Sl. No. 1 : Sr. Purchase & Stores Officer, AVN Purchase, Purchase Unit II, ATF

Area, VSSC, ISRO PO, Thiruvananthapuram 695 022, Ph : 0471-256 5141/4190.

While requesting for Tender Documents please indicate on the envelope as Request for Tender Documents- Tender No.. dt.

3. Tender Fee (` 560/-) shall be paid in the form of CROSSED DEMAND DRAFT ONLY. Other mode of payment is not acceptable. The Demand Draft should be in favour of : Accounts Officer, AVN Accounts, VSSC (for item under Sl. No. 1) payable at State Bank of India, Thumba, Thiruvananthapuram. [The tender fee is NON-REFUNDABLE].

Government Departments, PSUs (both Central and State), Small Scale Industries units borne in the list of NSIC and foreign sources are exempted from submission of tender fee. Those who are coming under the above category should submit documentary evidence for the same.

4. While submitting your offer, the envelope shall be clearly superscribed with

Tender No. and Due Date and to be sent to the following address.

For Sl. No. 1 : Sr. Purchase & Stores Officer, AVN Purchase, Purchase Unit II, ATF

Area, VSSC, ISRO PO, Thiruvananthapuram 695 022, Ph : 0471-256 5141/4190.

5. Quotations received after the Due Date/Time will not be considered.

6. VSSC, Thiruvananthapuram is not responsible for any postal delay/loss of documents in transit.

7. Sr.gggHead, Purchase & Stores, VSSC, Thiruvananthapuram reserves the right to

accept or reject any/or all the tenders in part or full without assigning any reasons thereof.

E-Procurement No. VSSC/PRSOPUR/2018E1208101 Dt. 12.07.2018 and Print Media

Advertisement ref. No. VSSC/P/ADVT/258/2018 Dt.13.08.2018 E-Tenders are invited for

Supply of Electrode Coating Machine through our E-procurement site

https://eprocure.isro.gov.in. Tender documents can be downloaded upto20.08.2018[14:00

Hrs.], Tender Opening date : 28.08.2018 [10:01 Hrs.].

Only online tenders will be accepted. No manual / Postal / e-mail / fax offers will be

entertained. No manual tender document will be issued. Parties interested to participate in

this e-Tender are required to register themselves as vendors, if not already registered, in our

e-procurement portal https://eprocure.isro.gov.in by downloading plugins and help demos

listed on the home page of the e-procurement link mentioned above to complete the vendor

registration process. They can seek help from help desk 080 6780 7786 also as provided in the

home page of e-procurement portal in case of any problem for registration and subsequent

process. Vendors may please note that without registering in our e-procurement portal, they

will not be able to quote for this e-tender.

Important Notice : Tender shall be opened on the first day of the schedule [ie.28.08.2018

[10:00 Hrs.]. If the tender could not be opened on the first day due to any technical snag, it

will be opened on the subsequent day as per the schedule. Bidders who are desirous of

attending the tender opening may make arrangements for attending the tender opening at

their cost.


Advertisement ref. No. VSSC/P/ADVT/258 /2018 Dt.13.08.2018 E-Tenders are invited for

Supply of FIBC BAGS through our E-procurement site https://eprocure.isro.gov.in. Tender

documents can be downloaded upto28.08.2018[14:00 Hrs.], Tender Opening date :

31.08.2018 [10:01 Hrs.].














their cost.



Supply of Trailer Mounted LN2 Charging station through our E-procurement site
















their cost.



Supply of Dome Loaded Pressure Regulator through our E-procurement site
















their cost.



Supply of Electronic platform Weighing scale 1 T & 3 T through our E-procurement site
















their cost.



Supply, Installation and Commissioning of Safety Survelliance Cameras and Allied system

through our E-procurement site https://eprocure.isro.gov.in. Tender documents can be

downloaded upto17.09.2018[14:00 Hrs.], Tender Opening date : 21.09.2018 [10:31 Hrs.].














their cost.

GOVERNMENT OF INDIA

DEPARTMENT OF SPACE, ISRO

VIKRAM SARABHAI SPACE CENTRE

PURCHASE & STORES DIVISION

Tel: (0471) 2563676; Fax: (0471) 2562105

EXPRESSION OF INTEREST

Ref.No. VSSC/EOI/SPM & IG/2018-19 Date: 31/07/2018

PROCESSING AND SUPPLY OF SPECIAL PURPOSE MOTORS (SPMS) AND IGNITER GRAIN (IGS)

. VSSC/EOI/SPM & IG/2018-19 16/04/2018

[16:00 Hrs.] $ & '() *

VSSC invites, EOI from prospective vendors for the processing and supply of Special Purpose

Motors (SPMs) and Igniter Grain (IGs). Interested parties can furnish their Expression of

Interest in Sealed Envelope quoting our Reference no. VSSC/EOI/SPM & IG/2018-19 on or

before 31/08/2018 [16:00 Hrs.] to the following address:

-. 1 / Sr. Purchase & Stores Officer,

III /Purchase Unit- III, PRSO

8, / RFF Area, ISRO. PO,

$/Thiruvananthapuram- 695022.

/Ph: 0471-256 3775 /

No. VSSC/EOI/ SPM & IG/2018-19

INVITATION FOR EXPRESSION-OF-INTEREST

Vikram Sarabhai Space Centre (VSSC) invites Expression-of-Interest (EOI) for Processing and Supply of Special Purpose Motors (SPMs) and Igniter Grains (IGs) at VSSC, Thiruvananthapuram using VSSC established facilities on "Government Owned Company Operated (GOCO) mode". It is proposed to entrust the scope of processing and supply of different types of Special Purpose Motors and Igniter Grains to VENDORS on Government Owned Company Operated mode at an annual rate of about 30 batches (average batch size of 12 numbers). The processing of SPMs and IGs which include handling of solid propellants, mixing & casting of hazardous explosive materials and post cast operations demand experience in the area of solid propellants/explosives and Non Destructive Testing (NDT). Safety and quality are of utmost importance while working in this environment. Overall management of the production also needs to be taken care and all issues and concerns must be addressed on a timely manner adhering to the stipulated production schedule. Interested VENDORS having adequate know-how, in-house facilities, qualified and skilled technical personnel, experience in solid propellant/explosives processing and having sound financial background, commitment and desirous of long-term partnership with ISRO are invited to participate in the Expression-Of-Interest. On receipt of EOI, VSSC shall evaluate and assess the suitability prior to short-listing of Vendors. This call for EOI does not carry with it any guarantee for allotment of contract. EOI document can be downloaded from website www.isro.gov.in and the same also shall be submitted within the due date and time. "Expression of Interest" with all essential information shall reach the Senior Purchase and Stores Officer, Purchase Unit III, Vikram Sarabhai Space Centre, ISRO Post, Thiruvananthapuram 695022, Kerala.This EOI is issued as a "Pre-Bid Qualification". Inadequate or incomplete information will result in rejection of the offer. VSSC reserves the right to accept or reject all or any of the EOI. Mere compliance to the EOI terms does not guarantee further consideration for qualification. No. VSSC/EOI/ SPM & IG/2018-19

INVITATION FOR EXPRESSION-OF-INTEREST

"Expression-of-Interest for processing and supply of Special Purpose Motors (SPMs) and Igniter Grain (IGs) at Vikram Sarabhai Space Centre (VSSC), Thiruvananthapuram

using VSSC established facilities on Goverment Owned Company Operated (GOCO) mode".

1. Preamble Vikram Sarabhai Space Centre (VSSC) is the lead Center of Indian Space Research Organisation (ISRO) that specializes in the design and realization of satellite launch vehicles. To meet the increasing demand of launches, ISRO has decided to look forward to participation of private industries for the production and supply of launch vehicle systems and sub-systems. Among other technologies, solid propulsion is one of the key areas in which VSSC has been working since its inception and in this area also, production through external parties/industries (VENDORS) is being explored. Hence, to begin with, solid motors below 400 kg propellant loading (Special Purpose Motors and Igniters Grains) are being offered for production under the Government Owned Company Operated (GOCO) mode. Objective is to carry out the processing, in process quality checks, specimen preparation and evaluation of properties of Special Purpose Motors (SPMs) and Igniters Grains (IGs) in batches at VSSC and supply finished motors and grains by the VENDOR as per the schedule finalized by VSSC. All the necessary facilities, equipments, fixtures and raw materials shall be provided by VSSC. 2. Scope of work SPMs are either case bonded solid motors with propellant cast in thermally insulated metallic hardware or free standing grains cast in PVC/paper wound restrictor tubes. There are different types of SPMs varying in length & diameter. IGs are free standing propellant grains cast in PVC/paper tubes. The major activities include Hardware preparation, Insulation lining, Autoclaving, Insulation finishing, Liner application, Propellant Raw Material preparation, Propellant Mixing, in process checks (homogeneity, viscosity and moisture), Casting, Oven Curing, Propellant trimming, Inhibition laying, Inspection, Non-destructive Testing, Specimen preparation and physical & mechanical properties evaluation. The maintenance and upkeep of process logs, facility logs and quality control function also form part of the processing activity. Quality assurance will be taken care by VSSC. Propellant processing being hazardous in nature, the VENDOR should be conversant with safety practices and carry out all the activities with utmost safety. Compliance of safety in the various processes are to be ensured by the VENDOR through their Safety Officer. VSSC will conduct overall safety surveillance for all the process activities. It is envisaged that the GOCO CONTRACT shall be operated for an initial period of 5 years. The first three months of the CONTRACT will be a trial phase wherein VSSC will provide all the necessary training to the VENDOR in the processing aspects of SPMs and IGs. , 3. Facilities and Process equipments provided by VSSC The processing and testing facilities for processing of SPMs and IGs available at VSSC, Thiruvananthapuram will be provided to the VENDOR. Sharing of facility/equipment with VSSC, if required, will be done by proper process scheduling jointly by VSSC & VENDOR. The major equipments required for SPMs and IGs processing are weighing balances, autoclave, hot air oven, liner application setup, vibro-sieve, grinder, Zigma mixers, casting chamber, vacuum pump, pressure casting setup, 450 kV X-ray machine, ultrasonic test equipment, film viewer and film processing unit, Universal Testing Machine, viscometer and moisture analyzer. VSSC will provide an Office for the VENDOR and extend other logistic support like canteen facility, internal transportation etc. as per existing norms.

4. Major operations during processing Operation Activities involved

1. Hardware

Preparation Visual inspection and cleaning of hardware by sand/cumite blasting, degreasing & primer application

2. Insulation Lining Laying of synthetic rubber insulation and preparation of sample coupons.

3. Autoclaving Autoclaving of rubber lined motors cases

4. Insulation finishing

Trimming of the insulation and abrasion.

5. Liner Application Liner preparation and coating the insulation surface by brushing.

6. Raw Material preparation

Sieving and weighing of all raw materials. Grinding of sieved Ammonium Perchlorate (AP). Blending of AP coarse with AP fines in specified ratio. Transportation of weighed raw materials to mixing stations. In-process sampling with proper identification and analysis of sample in the testing lab.

7 Propellant Mixing Mixing of raw materials as per process document.

In-process sampling and analysis for homogeneity, viscosity and moisture in the testing lab.

Mixed propellant slurry unloading, weighing and shifting to casting station. Cleaning of mixer.

8. Casting, curing & de-coring

Assembly of casting fixtures and propellant casting.

Dismantling of cast motors, dis-assembly of casting fixtures and placing the cast motor inside identified oven .

Monitoring of oven curing. After curing is over, de-coring of motors/grains is done and delivered to propellant finishing section .

9. Propellant trimming & inhibition

Trimming of propellant to the specified dimensions and inhibition of the propellant surfaces as per the requirement.

Shifting of inhibited motor/grain to NDT facility.

10. NDT Radiography, interpretation of films/digital radiographs and taking re-shots, if required and report generation

11. Visual & dim. inspection

Conduct final visual inspection of the hardware, propellant port and end inhibition surface and dimensional inspection.

12. Property evaluation

The moisture checks for the materials, physical and mechanical properties evaluation and generation of reports.

13. Documentation Generation of production document based on log sheet / log book information as well as product evaluation parameters from laboratory/NDT facility.

14. Quality Control Quality control of all the process operations by qualified engineers/supervisors and recording all the parameters in separate log books.

Real-time alerting of quality lapses and corrective action.

17. Safety Deploying qualified safety engineers for surveillance of all the activities and processing as per safety norms. Ensuring man & material limit for all the activities. Real-time alerting of

safety lapses and corrective actions.

5. Human Resource and HR policy The VENDOR shall provide the production team (technical and skilled) for processing of SPMs and IGs in VSSC. The screening of the proposed Production Team of VENDOR for their technical capability will be done by VSSC. The Production Team should be qualified and experienced and should possess requisite skill-sets for operation of solid propellant processing facilities and non destructive testing facilities and to perform production work as specified. Minimum Production Team of about 40 personnel, comprising of Graduate Engineers, Diploma Engineers and Technicians, may be required to be deployed by the VENDOR for the production and supply of SPMs and IGs in the GOCO mode in VSSC. The VENDOR shall have an HR policy for retaining trained personnel. This is very essential since attrition would lead to derailment of production activities, affect safety, quality and delivery schedule. 6. Training of VENDOR personnel VSSC will impart necessary training for the production team deployed by the VENDOR during the trial phase of initial 3 months. 7. Other requirements Security : Production Team shall comply with the security regulation of VSSC. Safety : Production Team shall follow all safety stipulations. Secrecy : The VENDOR and their production team shall abide by the INDIAN OFFICIAL

SECRETS ACT in vogue and shall provide information of awareness of the above in writing.

8. Criteria for scrutiny of EOI proposals 8.1 General The EOI shall contain complete information of the VENDOR, its human resources, infrastructure, assets, financial standing, line of business and credentials. 8.2 Essential criteria for evaluation of EOI 8.2.1 VENDORS registered in India need only participate. 8.2.2 VENDORS having experience in solid propellant/explosive processing and having own

facilities for the same need only apply. 8.2.3 The Vendor should be a profit making Company during the last 3 financial years (FY -

2015-16, 2016-17 & 2017-18) ending 31st March of the corresponding year. 8.2.4 Certified copies from Chartered Accountant for the annual financial turnover and balance

sheet showing profit/loss to be furnished. 8.2.5 VENDOR should have prior experience of more than 3 years in working with

aerospace/defense sectors in the processing of solid propellants/explosives.

8.2.6 In a scenario where the production requirements of SPMs and IGs are beyond the current production capacity of VSSC, the VENDOR should be willing to establish production facilities at their site and at their own cost to meet the enhanced production requirements.

8.2.7 In event of response from VENDORS already executing ISRO contracts, past

performance will be considered. 8.2.8 The VENDOR should have an established management structure and shall possess

human resources with adequate knowledge, skill and experience in the areas of processing of propellants/explosives and non destructive testing.

Note: 1. For Clause No.8, all information provided by the VENDOR shall be supported with

documentary evidence. Brochure, if any detailing the VENDOR profile may be submitted. Copy of the previous similar purchase/work orders executed by the VENDOR also may be appended.

2. The final evaluation of the responses will be based on inputs furnished against our criteria, assessment based on facility visit, if required, feedback from customers and overall assessment.

VENDORS who are meeting the requirements as specified in clause 8 of the EOI and are interested in associating with ISRO for production of SPMs and IGs at VSSC, Thiruvananthapuram may submit their interest in writing along with copies of supporting documents for verification/evaluation at VSSC. Qualified VENDORS will be shortlisted and detailed proposals from such VENDORS will be solicited through a RFP. A checklist (Annexure -1) for the supporting documents to be submitted by the VENDOR along with the EOI is enclosed.

Annexure - I

Checklist for the supporting documents (Filled checklist to be submitted by the Vendor along with the Expression of Interest)

Sl. Document / Proof Attached or Not-attached

with EOI Remarks

1. Company registration details

2. Proof for experience in the area of solid propellants/explosives

3.

Certified copies from Chartered Accountant for balance sheet showing profit/loss for the last 3 years (FY 2015-16 to 2017-18)

4.

Documents in support of prior experience of more than 3 years in working with aerospace/defense sectors in the processing of propellants/explosives

5.

Willingness for establishing production facilities at Vendor's site and at their own cost to meet the enhanced production requirements

6. Copy of previous purchase orders executed with ISRO/Defense/Aerospace sectors

7. Company profile, management structure and human resources and their experience

8. Company brochure

9. Copies of similar purchase/work orders executed by the Company

Vikram Sarabhai Space Centre [VSSC], Govt. of India invites Expression of Interest from

interested firms who are in aerospace manufacturing business for fabricating Light Alloy

Structures for Launch Vehicles. Proposed work is to realize 10 types of Light Alloy

Structures of 2.2m to 4.1m Diameter class and Thermal Paint Application.

Detailed Technical Specification and Terms & Conditions are available in our website www.isro.gov.in and www.vssc.gov.in Interested prospective Manufacturers can furnish their Expression of Interest quoting our reference No.6016 2018 002576 01 on or before 26/09/2018; time : 4pm to the following address. Sr. Purchase & Stores Officer

Purchase Unit V, MME Purchase, RFF Area, ISRO Post 695 022

Thiruvananthapuram

Expression of Interest (EOI)

Fabrication &Thermal Protection

System-Paint application on

Light Alloy Structures for Launch Vehicles from

Indian Work-Centre

Indian Space Research Organisation

Department Of Space

Government of India

Expression of interest

Table of Contents

Part I- Scope of Work

1. BACKGROUND.................................................................................

2. EXTENT OF WORK..........................................................................................................

3. STRUCTURES AND CRITICALITY.

3.1 Aft Stub Adaptor 3.6 Thermal Protection Plate

3.2 Aft Stub Adaptor Shroud 3.7 Slanted Strap-on Nose Cone

3.3 Thrust Frame 3.8 Nose Cone Adaptor

3.4 Inter Tank Structure Cryo 3.9 Strap-on Thermal Shroud

3.5 Fore Stub Adaptor 3.10 Strap-on Base Shroud

4. THERMAL PROTECTIONSYSTEM-PAINT APPLICATION .

Part II: Facility Requirements

1. GENERAL PLANT AND SHOP-FLOOR FACILITY...................................................

2. LARGE FIXTURING AND TOOLING FACILITY.......................................................

3. RIVETING AND FASTENING...

4. WELDING FACILITY.......................................................................................................

5. CAD/CAM FACILITIES....................................................................................................

6. MACHINING FACILITY..................................................................................................

7. METAL FORMING FACILITY.......................................................................................

8. PROCESS SHOP AND HEAT-TREATMENT FACILITY...........................................

9. SURFACE TREATMENT FACILITY.............................................................................

10. THERMAL PAINT APPLICATION FACILITY............................................................

11. INSPECTION FACILITY..................................................................................................

12. STORING FACILITYWITH BONDED STORES.........................................................

13. TRANSPORTATION FACILITY.....................................................................

Part III: Process Flow Chart

1. END RINGS...................................................................................................

2. SKINS........................................................................................................................

3. STIFFENERS............................................................................................................

4. SECTOR BULK HEADS (SHEETS/EXTRUSIONS)..........................................

5. SHEET METAL BULKHEADS..............................................................................

6. SHEAR BOLTS.........................................................................................................

7. SEQUENCE OF ASSEMBLY OPERATION........................................................

Part I- Scope of Work

1. Background

Vikram Sarabhai Space Centre (VSSC), Department of Space (DoS),Government of India invites

Expression of interest (EOI) from interested Indian industries for realization of Light alloy

structures of GSLV MkIII and Establishing facility for Thermal Painting. These Light alloy

structures are to be realized from aerospace quality material and protect outer surfaces from

environment inclusions or corrosions. VSSC has collaboration with many Indian Industries

(Private/Public work-centers) to realize all such mechanical hardware fabrication and realization.

Existing VSSC work-centers are now capable of fabricating and supplying for ongoing programs

only. Light Alloy Structures are the one more crucial from its future availability point of view as

these structures require more critical manufacturing process and facilities. Hence, Department is

willing to receiveExpression of Interest from promising contractors to realize Light Alloy

Structures and establish facility for Thermal Painting.

2. Extent of Work

For Geo-Synchronous Satellite Launch VehicleMkIII(GSLVMkIII)10 Types of Light Alloy

Structures of differentgeometry& types are to be realized through external work centers and

facility to be established for thermalprotection/ painting of light alloy structures. These structures

are of different constructions like closely stiffened, Truss, machined & rolled Isogrid Structures.

These are to be realized through Aerospace quality Aluminium Alloy in various forms like

sheets, blocks, plates, rods, bars, tubes, extrusions, forged rings etc. supplied by ISRO. The

proposed works is for supplying qualified quantity of following items and providefacility for

Thermal Protection System-Paint Application on GSLV MkIII Light Alloy Structures

The size of these Light Alloy Structures varies fromDia.2.2m to 4.1m and height of 0.6m to

4m.Different structures which are mostly made up of Aluminium Alloys of different grades of

Aerospace qualityrequire different advanced manufacturing processes at different stages. Brief

description of each structure with overall dimensions and criticalities with regard to process and

assembly is given below.

3. Structure and Criticalities

A brief idea about the overall size of each structure, critical processes involved, criticalities

involved in final assembly of the each structure and specific facility set-up required (if any) is

mentioned below.

1) Aft Stub Adaptor 6) Thermal Protection Plate

2) Aft Stub Adaptor Shroud 7)Slanted Strap-on Nose Cone

3) Thrust Frame 8) Nose Cone Adaptor

4) Inter Tank Structure Cryo 9) Strap-on Thermal Shroud

5) Fore Stub Adaptor 10) Strap-on Base Shroud

3.1 Aft Stub Adaptor

Separation System Assy (24 Nos)

AE Ring

FE Dummy

Ring

Structural Configuration:

Truss Rod Assy

No. of Truss Rod :48 Nos

OD of Tube : 86mm

Length : 120mm

Material : Titanium Alloy

Assembly

No. of Truss rod assy. : 48 Nos

Diameter (Max) : 4078 mm

Overall height : 680 mm

Mass : 702 Kg

Structure Realization Strategy:

Design, realization and qualification of tooling, Subassembly fixture and Main assembly fixture

using CAD/CAM applications.

Machining/Turning of 4m Diameter class AA2014.T651/T652 Rings.

Intricate milling of components using Turn Mill Centers.

DP test all over the surface as per ASTM standards and inspection for any surface defects.

Anodizing of all AA components, Passivation of all Austenitic Steel components& Cd Plating of

alloy steels.

Titanium tube/ rod to be machined/ turned for making end connector and truss member.

EB welding of tubes, D.P & R.T / U.T test of these welded joints.

Alloy Steel components to be hardened & Tempered with Mechanical Test Coupons,

Shear bolt shank grinding, Thread rolling etc to achieve H7/g6 fit.

Subassembly and assembly realization by riveting, Jo-Bolt and Shear Bolt fixing to achieve

H7/g6 requirement.

Dimensional & geometrical parameter inspection of all components, Sub-assemblies and final

assembly using qualified inspection equipments, 3D CMM, RMS, Laser Tracker etc.

Truss Member

Assy

Total No. of Assy :2 Nos

Total No. of Components :16 Nos

Material Used :Aluminium alloy

AA2014.T651/652 ring forgings,Titanium alloy

bars, rods and tubes, SS &Maraging steel rods

3.2


Overall Diameter :

Overall height :

Mass : 154 Kg

Structure Realization Strategy

Design, realization and



Intricate milling using Turn Mill Centers


Anodizing of all AA components, Passivation

alloy steels.

Forming or bending to be done on 2mm Titanium alloy sheet for co

Alloy Steel components to be hardened &tempered with Mec

Shear bolt shank grinding,

Subassembly and assembly realization by riveting, Jo

H7/g6 requirement.

Dimensional & geometrical parameter inspection of all components, Sub


2 Aft Stub Adaptor Shroud

Intricate patterns on

shroud panels

4270.2 mm

: 630 mm

154 Kg





Intricate milling using Turn Mill Centers for shroud panels and other components.

over the surface as per ASTM standards and inspection for any surface defects.

components, Passivation of all Austenitic Steel components

Forming or bending to be done on 2mm Titanium alloy sheet for connecting strips.

Steel components to be hardened &tempered with Mechanical Test Coupons.

r bolt shank grinding, Thread rolling etc to achieve H7/g6 fit.


Dimensional & geometrical parameter inspection of all components, Sub


Total No. of Assy

Total No. of Components

Material Used

alloy ring forgings, bars, plates,

alloy sheets &SS rods

Intricate patterns on

shroud panels

qualification of tooling, Subassembly fixture and Main assembly fixture

for shroud panels and other components.

over the surface as per ASTM standards and inspection for any surface defects.

Steel components& Cd Plating of

nnecting strips.

hanical Test Coupons.

Bolt and Shear Bolt fixing to achieve



: 4 Nos

Total No. of Components : 30 Nos

: Aluminium

bars, plates, Titanium

SS rods

3.3 Thrust Frame

Detailed View


Overall Diameter : 2253.8mm


Mass :110 Kg





Intricate milling using Turn Mill Centers for shroud panels and other components.



alloy steels.

Forming or bending to be done on AAsheets.



Subassembly and assembly realization by riveting, Jo-Bolt and Shear Bolt fixing to achieve H7/g6

requirement.



Total No. of Assy : 2 Nos


Material Used : Aluminium

alloy ring forgings, bars, plates, sheets,

Titanium alloy bars ,SS rods& Glass epoxy

reinforced materials.

3.4 Inter Tank Structure Cryo

Truss Structure made out of

Titanium alloy tubes

FE

Ring(Dum

AE

Ring(Dum

my)

Truss

Structure


Truss Rod

OD of Tube : 119mm

Thickness of tube : 1.6mm


Assembly

Height : 2100mm

PCD : 4007mm

No. of truss tube : 24 Nos

Ring Diameter : 4057mm (OD)

Mass : 197 Kg




Machining/Turning of 4m Diameter class dummy rings and Titanium alloy materials.



alloy steels.


Shear bolt shank guiding, Thread rolling etc to achieve H7/g6 fit.

EB Welding of tubes, D.P & R.T /U.T test of these welded joints.


H7/g6 requirement.





Material Used :Aluminium alloy

ring forgings,Titanium alloy rods, bars & SS

rods.

3.5 Fore Stub Adaptor


Truss Rod

OD of Tube : 25mm

Thickness of tube : 1.0mm


Assembly

Height : 340mm

PCD : 4064mm

No. of truss tube : 72 Nos

Mass : 152Kg




Machining/Turning of 4m Diameter class of FE & AE dummy rings and Titanium alloy materials.

DP test all over the surface as per ASTM standards and inspection for any surface defects


alloy steels.



EB Welding of tubes, D.P & R.T /U.T test of these welded joints.


H7/g6 requirement.



FE Ring FE Ring

Truss

Structure AE Ring

Dummy

Total No. of Assy : 4 Nos (Incl. CFRP)

Total No. of Components : 29 Nos (Incl. CFRP)

Material Used : Aluminium alloy ring

forgings, sheets, extrusions, Titanium alloy rods, bars

extrusions &Composite (CFRP) materials (For

protective casing).

3.6 Thermal Protection Plate

22 mm thick Sector

of intricate pattern

1025


Overall Diameter : 1025 mm


Mass : 27.5 Kg




Intricate milling using Turn Mill Centers for sectors and other components.



alloy steels.

Forming or bending of 3mm Aluminium alloy sheet

Alloy Steel components to be Hardened, Temperedwith Mechanical Test Coupons, and

AA Sheet to be solution treated and aging.



H7/g6 requirement.





Material Used : Aluminium alloy

sheets, plates,Steel bars & rods.

3.7 Slanted Strap-on Nose Cone


Overall Diameter :3200mm

Overall height : 3713mm

Semi Cone Angle : 12.5

Spherical Nose Cone- : R1000 mm &

Radius& Height : 783.6 mm

Mass :563 Kg


.



Machining/Turning of 1m to 3.3m Diameter class AA2014.T651/T652 Rings.



Rolling and forming of AA sheets.

Anodizing of all AA components &Cd Plating of all Alloy Steel components.




H7/g6 requirement.





Material Used :Aluminium

alloy ring forgings, sheets, plates,bars&

Steel rods.

3.8 Nose Cone Adaptor

16mm thick ISO Grid

Panels of intricate pattern

Detailed View


FE Ring Diameter : 3190mm

AE Ring Diameter : 3180mm

Overall Height : 1600mm

Mass : 920 Kg




Machining/Turning of 3.3m Diameter class AA2014.T651/T652 Rings.




Anodizing of all AA components &Cd Plating of all Alloy Steel components




H7/g6 requirement.





Material Used : Aluminium alloy

ring forgings, sheets, plates,bars, Steel rods &

plates

3.9 Strap-on Thermal Shroud

FE Ring Segment

AE Ring Segment


FE ringSeg. Diameter : 3960mm(Max)

AE ring Seg. Diameter : 3400mm


Mass :68 Kg







Anodizing of all AA components.


H7/g6 requirement.



Total No. of Assy : 1 No.



alloy ring forgings, sheets & extrusions

3.10 Strap-on Base Shroud

FE Ring

AE Ring


FE ring Diameter : 3280mm

AE ring Diameter : 4070mm


Mass : 426 Kg







Anodizing of all AA components &Cd Plating of all Alloy Steel components




H7/g6 requirement.





alloy ring forgings, sheets, bars & steel rods

4. Thermal Protection System

External surface of theflightisexposed to aerodynamic heating, heating due to radiation and

convection. To restrict the temperature, rise during flight and protect outer surface from

environmental inclusions or corrosion, Thermal Protection System is required. Following types

of thermal protection materials are normally used to protect the structures from the thermal

environment.

Thermal Protection Materials for Paint application

1. PMC-30 2. PC-10 3. EPOXY PAINT

The TPS material and thickness to be achieved on each structures are as follows and it has been

estimated based on the thermal environment.

Structure TPS Material Coating thickness

(in mm)

Ogive Payload Fairing PMC-30 0.1-3.9

PC-10 (White) 0.2-0.3 Equipment Bay Shroud White Epoxy 0.4

Inter Stage 1/2U PC-10 (Red & White) 0.1-2.0

Inter Stage 1/2M PC-10 (Red & White) 0.1-0.3

Inter Stage 1/2L PC-10 (Red & White) 0.1-0.3

Inter Tank Structure PC-10 (Red & White) 0.2-2.4

Core Base Shroud PC-10 (Red & White) 0.1-2.3

Core Thermal Shroud PC-10 (Red & White) 0.2-5.2

Thermal Protection Plate PC-10 (Red & White) 0.3-11.2

L110 Flare Shroud PC-10 (Red & White) 0.3-8.2

Slanted Strap-on Nose Cone PC-10 (Red & White) 0.1-2.4

Nose cone Adaptor PC-10 (Red & White) 0.3-1.0

Strap on Base Shroud PC-10 (Red & White) 0.3-7.0

Strap on Thermal Shroud PC-10 (Red & White) 0.3-8.0

FNC Nose Cone PC-10 (Red & White) 0.3-3.6

FNC Aft Shroud PC-10 (Red & White) 0.1-3.4

Scope of work or application of TPS-Paint over the structures of GSLV MkIII involves weighing

of the hardware, positioning, handling, fixture removal, cleaning of the surface, masking of areas

that do not require TPS, TPS preparation by using PC-10 (Red/White)/PMC-30/ Epoxy and

Toluene in suitable quantity, Curator preparation by mixing MethyOxiaminoSilane (MOS),

Amino Propyl Tri-EthoxySilane (APTES) and Di-Butyl Tin dilaurate(DBTDL) in suitable ratio.

Spray system preparation, TPS application in multiple coats over required regionsas per

specification, emerying, intermediate TPS measurement, data logging, application of TPS,

thickness measurement, de-masking, fixture attachment, again weighing, cleaning of equipments,

and movement of hardware to the next stage of processing.

Coating can be done automatically over a prime coat in multiple coats to obtain the required film

thickness. Basic facility requirements for TPS application are as follows.

1) Painting Booth:-

To carry out thermal painting of the structures party should be equipped with booth capable of

handling an assembly of maximum Dia.5m and Height 11m and spraying facility.

2) Air Inlet & Exhaust System: -

Fresh inlet air with filteringcapacity up to 50 micron

particle size

Paint fumes Exhaust system for exhale the

toxic fumes produced during the application.

Automatic Painting Booth for

Structures

3) Rotary - Tilt table: -

Rotary Tilt table for positioning the hardware and enables worker to

apply TPS on the structure by rotating and tilting the work table. The

table must be of solid base and has provision for clamping the

structures.The table should be rigid for handling a structure of Maximum

Dia.5 Mtr and height 11 Mtr.

4) Spraying Equipments& Stirring Mechanism: -

Spraying equipments and attachments are required for TPS application. Mixture to be poured in

a sealed pressurised container attached with spray gun and it is released as fine spray when

depressing a button to form an evenly coated surface. Additional Stirring mechanism to be

incorporated with spraying equipments for getting fine ratio of PC-10/ PMC-30/Epoxy and

Toluene mixture to form fine coating thickness.

5) Vertical Hoist & Fork Lift: -

Vertical hoist which are works by means of a drum or lift wheel around which rope or chain

wraps are required for lifting or lowering the hardware. It can be either operated manually or

automatically. Fork lifts for lifting and moving the hardware to a short distance. Nylon Slings,

Sling hooks, Bow shackle etc. are required for safe lifting of the hardware.Maximum

approximate mass of structure to be handled by means of these attachmentsis 2 Ton .

6) Air Compressor: -

Air compressor for supplying compressed air for the TPS application on the hadware for

achieving the required coating thickness and In order to atomize the paint properly, the facility

must be hooked up to provide an air flow of 785 bar pressure.

7)Thickness Measuring Instruments: -

A coating thickness measuring instrument is required to measure coating thickness. Thickness is

probably the most critical measurement in terms of hardware because of its impact on the entire

Thermal Protection System. The measurement noticed to be logged in for subsequent inspection

and activities.

Part II: Facility Requirements

The prospective firm should have well established shop-floor practices & aclean work

environment with following facilities:

1. General Plant and Shop-Floor Facility

An assembly bay of around 100m length, 50m width and 10m height under hook of an overhead

Crane with an EOT of 10 tonnes.

Assembly facilities should include High precision vertical assembly jigs with staging for

assembly of Structures size varying from dia 2.2m to 4.1m & 0.6m height to 4m

Subassembly fixture for Skin segments riveting with stiffeners to form skin panels.

2. Large Fixturing and Tooling Facility

Light Alloy Structures which are made up of Aluminum Alloys, which cannot be welded, require

riveting. To ensure hole-matching between mating parts, properly designed drill jigs and fixtures

are required. As size of light alloy structures varies from Dia2.2m to 4.1m and height of 0.6m to

4.0 m, facilities to design, fabricate and qualify that much bigger size of fixtures and jigs are to

be demonstrated by the party.

Perspective party should have Assembly facilities including High precision vertical assembly

jigs with staging for assembly of Structures size varying from 2.2m to 4.1m diameter and height

of 0.6m to 4m. These assembly fixtures shall have locators for loading end-rings/ Bulkheads

taking care of height, orientation etc. Assembly jig shall be re-referenced before every assembly

generations.

3. Riveting and Fastening

Aluminum Alloy Structures are built by assembling various sub-assemblies and components

using pre-qualified jigs and fixtures. Riveting and bolt fixing are used to join two parts together

with some reference points or locators. Number of Jo-Bolts is fixed in the critical joints where

both shear as well as axial loads is coming. There require shear bolts for taking shear loads

alone. All these activities are critical as joints are subjected to loads and any mistake may cause

catastrophic failure. Hence, skilled man-power for Riveting for different configuration of rivets,

Jobolt fixing in reamed holes, torquing of Tensile/Shear bolts are to be ensured.

4. Welding Facilities

All the weld joints coming in light alloy structures are critical since they are subjectedto

Structuralloads. Hence party should have qualified welding facilities and welding procedure.

The quality of welding shall be ensured through

proper maintenance ofthe equipment and

calibration of all instruments and controls.

Standard inspectioncharts recommended by the

equipment supplier for periodic calibration shall

beobtained and the calibration done

accordingly.DPT & RT are mandatory for these

welded joints. However, wherever RT is not

possible UT shall be carried out.

5. CAD/CAM Facilities

Party should have CAD/CAM facilities with skilled man-power for Jig designing, tooling,

machining programming etc.. Designing and machining of critical components and assemblies

like require CNC programming using latest Cam software like MasterCamand3D Surface

Modeling software like Unigraphicsor CATIA.

6. Machining Facilities

These structures are of different constructions like closely stiffened, Truss, machined & rolled

Isogrid Structures etc. to be realized through

form of sheets, blocks, plates, rods, bars, tubes

processes have to be carried out to realize components from the supplied raw materials as per

corresponding process plans.Machining facilities like 4m class CNC VTL for turning, 5m class

VTMC for milling with close dimens

Following facilities of required range are necessary for

a. 4 Axes Vertical Turn-Mill

Vertical Turn-Mill-Bore centres

from 2 meter to 4.1 meters in diameter, capable of

handling components upto4 meters in height.

b. 5 axes high speed profilers and routers

handle Isogrid/orthogrid milled components.

c. 5 axes machining center: for

components.

d. Precision jig boring machine:

steel alloy components within the positional tolerances of 10m.

7. Metal Forming Facility

From raw material stage to final component level,

activities like Rolling, where the material is passed through a pair of rollers

the material is stamped by a press

shaped by localized compressive forces

Facilities for all above forming processes are essential. Sheet metal

working is one of the major parts in realizing light alloy structures.

Advanced Sheet Metal forming facilities like Hydroforming,

Stretchforming, Spinning, Rubber pad forming etc.

involved in realization of Light Alloy Structures

Stretch forming facility for Aluminium alloy sheets of 6

thickness of size around 2m (w

condition should be functioning. Similarly, party should have

machines to roll AA sheets & plates

Facility for Hydroforming of spherical domes of diameter upto 2m.


Isogrid Structures etc. to be realized through different raw materials supplied by ISRO in the

sheets, blocks, plates, rods, bars, tubes, extrusions, forged rings etc.Multiple machining


Machining facilities like 4m class CNC VTL for turning, 5m class

VTMC for milling with close dimensional and profile tolerances are required.

Following facilities of required range are necessary for GSLV-MKIII Structures realization.

Mill-Bore centres:4 Axes

Bore centres of bed sizes ranging

meters in diameter, capable of

meters in height.

5 axes high speed profilers and routers which can

Isogrid/orthogrid milled components.

for machiningIntricate

machine:for hole drilling in solutionized (T6) AA as well as hardened

steel alloy components within the positional tolerances of 10m.

From raw material stage to final component level, above structures require various

Rolling, where the material is passed through a pair of rollers; Die forming, where

material is stamped by a press around or onto a die; and Forging, where the material is

shaped by localized compressive forces etc.

Facilities for all above forming processes are essential. Sheet metal

working is one of the major parts in realizing light alloy structures.

Sheet Metal forming facilities like Hydroforming,

Stretchforming, Spinning, Rubber pad forming etc. are also to be

involved in realization of Light Alloy Structures.

r Aluminium alloy sheets of 6-10mm

(wide) x 4m (long) in solutionized (T6)

should be functioning. Similarly, party should have Rolling

sheets & plates of 10-25mm thick and 5 mts width

spherical domes of diameter upto 2m.


ferent raw materials supplied by ISRO in the

Multiple machining


Machining facilities like 4m class CNC VTL for turning, 5m class

Structures realization.

hole drilling in solutionized (T6) AA as well as hardened

various metal forming

Die forming, where

Forging, where the material is

8. Process Shop and Heat-Treatment

Following facilities are required for realization of proposed light

with desired properties:

a.Heat Treatment Facility:Electrical furnace with a close temperature

control of 3C for Annealing, Solution Treatment with water

quenching & precipitation treatment of Al. Alloy components of larger

size is required.Solutionizing& Ageing Furnace

handling parts up to 4m dia.& 5m length

b. Chemical Milling facility: Chemical milling

components of these light alloy structures.

provisions for multi-step selective milling with masking andde

from 3mm wall thickness to 1.5mm

be sufficient to accommodate the

9. Surface Treatment Facility

Aluminum alloy components require

capacity upto 4.1 m dia. and sheets up to

and Passivation of Austenitic Steel components

to carry out surface treatment of structural components:

Anodizing facilities of different

size components like skin

5m Dia. class anodizing tanks

500x500x1000mm Cadmium plating bath etc

Passivation tank having size capable of handling 125x2000mm length component.

10. Thermal Paint Application

To protect outer surface for environmental inclusions or

surfaces of Al. Alloy components are

should be equipped with spray painting

painting of assemblies of 4.1x4m

carriage mechanism with fume exhaust system

features for carrying out thermal painting

with more control.

Treatment Facilities

Following facilities are required for realization of proposed light alloy structures components

lectrical furnace with a close temperature

control of 3C for Annealing, Solution Treatment with water

quenching & precipitation treatment of Al. Alloy components of larger

Solutionizing& Ageing Furnace should be capable of

& 5m length

Chemical milling is required for various

components of these light alloy structures. Chemical Milling with the

step selective milling with masking andde-masking

from 3mm wall thickness to 1.5mm is essential. Size of the bath should

be sufficient to accommodate the sheet may be up to 3mx3m.

uminum alloy components require Chromic Acid anodizing facility with componen

and sheets up to 3m length. Similarly, Cadmium plating of Alloy Steel

and Passivation of Austenitic Steel components etc. to be done. Following facilities are required

to carry out surface treatment of structural components:

Anodizing facilities of different types ie; Chromic Acid and Sulphuric Acid for large

size components like skins, Rings, Bracketing items etc.

zing tanks and 3m depth.

mm Cadmium plating bath etc.


facility

To protect outer surface for environmental inclusions or corrosion,

of Al. Alloy components are coated with thermal paints. Party

quipped with spray painting facilities to carry out thermal

4.1x4m height. CNC based turn table and

carriage mechanism with fume exhaust system may be some added

for carrying out thermal painting on bigger structures as well as

alloy structures components

component handling

plating of Alloy Steel

. Following facilities are required

uric Acid for large


11. Inspection Facilities

Quality Control & Inspection facilities are must for On-line inspection, final dimensional

inspection,internal/surface defects evaluation and mechanical properties testing, Dimensional

inspection using CMM & RMS and NDT facilities like RT, UT, DPT etc for final qualification

and acceptance of the hardware.

Following are facility requirement for quality control activities:

Large 3D Coordinating Measuring Machine of size more

than4.1m-4.1m-4m (X-Y-Z).

Computerized Remote Measuring system with measuring range of

4 mtr and accuracy of 50 microns/mtr.

Laser tracker capable of measuring a wide range (Dia 1 to 5 mtrs)

components / Assemblies with accuracy of 10 microns/mtr or

more.

Photogrammetry system which can measure components up to 4m

height with 10 microns per meter accuracy.

Work test laboratory for mechanical testing.

12. Storing Facility with Bonded Stores

Received raw materials, fasteners of different grades, semi-finished components, sub-assemblies

and final assembled structures have to be kept in protected space with all necessary facilities. A

bounded stores with proper tracking system is mandatory. The space available in the store should

be sufficient to keep all above items in designated location with traceability.

13. Transportation Facility

With the approval of Pre-Dispatch Review Committee, the qualified

structures have to be transported to required places. For that party must

have sufficient transportation facility with proper licenses from

government authoritiesto transport goods by road in anywhere in India.

Transporting facilities should be qualified enough to transport riveted and

bonded structural assemblies without any damage. This may require

transport container up to 10m length, 5m width & 5m height


Components have to go through various processes to achieve final shape & size and attain

certain physical properties. Similarly few processes are to be followed to protect the outer

surface from corrosion and other influences from external environment dur

Out of various such critical processes,

alloystructures.

1. Realization of Rings:

2. Realization of Skins:




surface from corrosion and other influences from external environment during storing period.

Out of various such critical processes, Flow chart for realization of few componentsfor light



ing storing period.

componentsfor light

3. Realization of Stiffeners:

4. Realization of Sector Bulk Heads(

Realization of Sector Bulk Heads(Sheets/ Extrusions):

5. Realization of Sheet Metal Bulkheads

6. Realization of Shear Bolts

Sheet Metal Bulkheads

7. Sequence of Assembly OperationsSequence of Assembly Operations

Vikram Sarabhai Space Centre [VSSC], Govt. of India invites Expression of Interest from

interested firms for DEVELOPMENT & SUPPLY OF LANDING GEAR [LG] SYSTEM.

Detailed Technical Specification and Terms & Conditions are available in our website www.isro.gov.in and www.vssc.gov.in Interested prospective Manufactures can furnish their Expression of Interest quoting our reference No.A204 2017 006010 01 on or before 28/02/2018; time : 4pm to the following address. Sr.Purchase & Stores Officer

Purchase Unit V, MME Purchase, RFF Area, ISRO Post 695 022

Thiruvananthapuram