WELCOME TO POWER RUBBER INDUSTRIES PVT.LTD.

AN ISO: 9001- 2000 CERTIFIED COMPANY

HISTORY

In the year, 1976, a small group of people having more than 2 decades of expertise in the

Engineering field along with some technologists and engineers came together to form a Rubber

Components Manufacturing Unit.

A Company established to create high performance and high-quality rubber components that would cater

to a complex and dynamic market. Initially the Company focused on developing business as OE

supplier to Automobile manufacturers for their need of rubber components. Gradually, the Company

gained its reputation as one of the major supplier for qualitative products and services especially for most of the critical

rubber components being used by the Automobile manufacturers. Over the past couple of years the Company has

concentrated on developing new high-tech products for various segments of Industries and developed some critical import

substitutes for its customers.

As we look back, we find that it has been a very fruitful, rewarding and progressive years. Today the organization has

transformed into a professional one with an ISO: 9001 certification, with superior technology to produce components that

are world class. Qualified professionals having hands-on experience in their respective fields, manage the company. We

emphasizes on 3 M (Man, Machine and Method) with the objective of customer satisfaction through continuous

improvement and excellence in different areas leading to a continuous growth.

Over the years we have truly blossomed, not just in our skills, but also in our product ideas, our craftsmanship and our

services.

This continuing growth is the dividend of our commitment to our customers. Our dedication is mirrored in our wide

spectrum of products, each of which has been borne out of a unique need of demanding customers.

With innovation, diversification & vision, the pillars of our philosophy Power Rubber operates with the belief that there is

no resting for us in today’s highly competitive world economy.

DETAILS

Name of the Firm : Power Rubber Industries Pvt.Ltd

Status : Private

Factory & Office : Jay Vailankani Ind.Estate,Behind Tirupati Gas go down, Mira Bhayandar Rd.Bhayandar (East)

Thane Pin : 401 105, Maharashtra, India

Phone No : +91 22 28195644 / 45

Fax No. : +91 22 28195611

E-mail Address : spiindia@vsnl.com

Website : www.stridentpolymers.com

Sales Tax Registration No. : VAT No.27300255087V w.e.f 01.04.2006

CST No.27300255087C w.e.f 01.04.2006

PAN No. : AAFCS0225B

E.C.C. Code No. : AAFCS0225BXM001

TAN No. : MUMS16092G

OUR CLIENTS

Automotive Sector

• Tata Motors Limited• Hindustan Motors Limited• Mahindra & Mahindra

Limited• IFB Automotive Systems &

Seating Ltd• Gabriel (India) Limited• Land Cruiser• Hindustan Hardy Spicer’s

Limited• Jamna Auto Limited

Railways

• Indian Railways• HMTD Engineering Pvt.

Limited• Greysham International Pvt.

Limited• Greysham & Co

Light / Heavy Commercial Vehicles

• TATA Motors Limited• Eicher Motors Limited• Swaraj Mazda Limited• Mahindra & Mahindra

Limited• Bed Ford Trucks • Hindustan Hardy Spicer’s

Limited• Kalyani Brakes Limited• Mahindra Sona

Power And Transmission

• Amara Raja Batteries Limited• Harsha Electronics Pvt.

Limited• Crompton Greaves Limited• EMI Transmission Limited• International Transmission

Products Pvt. Ltd• Reliance Thermal Power

Station• Siemens Ltd

Tractors & Tillers

• Tractors & Farm Equipments Limited

• Mahindra Tractors• Punjab Tractors Limited• Eicher Tractors Ltd• VST Tillers & Tractors Limited• TIL Tractors Limited

Engineering Industry

• Deltech Controls Limited• Virgo Engineers Pvt. Limited• Ornate Precision Engineers• Mody Industry (F.C.) Pvt. Ltd• Greaves Limited• Stafford Valves • Jindal Steels Limited• Premium Engineering Works• Jamna Auto Industries Ltd• Shyam industries Limited• Standard Radiators Limited

RANGE OF PRODUCTSELASTOMERIC SPRINGS

Engine Mounting Flexible MountingCab MountingSandwich MountingAntivibration MountingBody MountingSilent Block BushesInsulatorAxle Bumper & Bump stopCutless Bearing / Neoprene Rubber BearingArmour Gripped SpacersCentre Bearings

COUPLINGS

Gear CouplingFlexible Coupling

EXTRUDED PRODUCTS

Window ChannelDoor BeadingGlazing RubberSponge CordSponge ProfileTubing

RANGE OF PRODUCTSMOULDED COMPONENTS

Grommet GasketsPolymer inserted DiaphragmsDuct BootConnectorsRingsSnubberSealsRubber SeatsRubber PadsButterfly valve Liner

EXPANSION / FLEXIBLE JOINTS

Expansion JointsFlexible ConnectorFlexible SeparatorRubber Bellows for Bus Duct

HOSES

Water Hoses Air HosesRadiator HosesOil + Solvent HosesSuction + Discharge Hoses

ELASTOMERIC SPRINGSRUBBER TO METAL BONDED PRODUCTS

Application Type of Product Base

Polymer

Process Performance test

Automotive , Industrial , Railways ,

Construction & Bridges Engine Mounting NR

Transfer Moulding Bond Test

Endurance Test

Fatigue Test

Automotive , Industrial & Machinery Flexible Mounting

NR, CR

Transfer or

Compression

Separation Test

Flex Test

Automotive Cab Mounting NR Transfer or

Compression

Bond Test

Automotive , Defence , Industrial ,

Railway, Construction & Bridges Mounting NR Transfer Moulding

Endurance Test

Flex Test

Bond Test

Automotive , Defence , Industrial ,

Railway , Construction & Bridges

Anti Vibration

Mounting NR

Injection Moulding Endurance Test

Flex Test , Bond Test

Fatigue Test

Automotive & Railways Body Mounting NR, CR Transfer or

Compression Bond Test

Automotive , Defence & Industrial Silent Block Bushes

NR

Injection Moulding Torque Test

Bond Test

Various Application Insulators NR, CR Transfer Moulding Bond Test

Fatigue Test

Automotive & Machinery Axle Bumpers &

Bump stops NR

Transfer Moulding Separation Test

Endurance Test

Fatigue Test

Shipping & Machinery Cutless Bearing CR, NBR Injection Moulding Swell Test

TYPICAL APPLICATIONS

ELASTOMERIC SPRINGSSUSPENSION BUSHES/SILENT BLOCKS

These Silent Block Bushes are used for the purpose of shock absorbance. You can choose from various options available with us. Silent

Block Bushes that we manufacture are highly durable.

In these types of bushes the rubber NR used is of high quality & is securely bonded between inner & outer metal to give maximum axial,

radial & tortional stiffness. These are manufactured in injection type of moulding machines. The dimensions of the metal parts are

controlled by grinding process. To get maximum bonding strength the metal parts are chemically treated PHOSPHATISED before

adhesive application

FEATURES:

Product consists of two concentric sleeves with rubber securely bonded between them. Designed to take up torsional movements and axial

and radial loads. The rubber is pre stressed to give maximum dynamic strength and durability.

-The bonded rubber takes up the full movement.

-Lubrication or other bearing maintenance is not required.

-The sleeves also have excellent sound and vibration isolation capacity, which makes structures, fitted both silent and vibration free.

APPLICATION:

-Product used to solve bearing problems in vibrating and oscillating constructions.

Linkage systems in:

- Cars * Railway carriages * Tractors * Trucks * Agricultural Machinery* Bulldozers * Vibratory screens

ELASTOMERIC SPRINGSCUTLESS BEARING

Cutless bearings refer to rubber lined bearings operating with water lubrication on an elasto-hydrodynamic principle.

The fluted design of the bearing utilizes basis lubrication principles to allow formation of hydrodynamic water wedges

at the bearing surfaces by flow of water from the grooves.

Cutless bearings have a wide spectrum of marine applications, which include propeller shaft bearings in stern tubes or

struts, rudder bearings and cutter bearings, in a variety of craft. Besides marine applications, cutless bearings are also

used in hydroelectric turbines, centrifugal pumps and other water submersible devices.

When used in propeller shaft housing, the cutless bearing provides a structural support with built-in resilience that

allows the bearing to yield in sympathy with the bending of the boats structure and thus prevents shaft bearing

misalignment or shaft wear. The bearing also reduces vibration and the volume of noise being transmitted into the

boat. It also absorbs shock and has an advantage of being almost maintenance free.

The name cutless is derived from the ability of such bearings to pass abrasive materials such as sand and marine

organisms across its surface and into the flushing grooves. These abrasive particles do not embed into the bearing

surface and cause little cutting and wearing of the shaft.

Manufacturing Process:

Fluted Cylindrical Cutless Bearing can be prepared either by starve type bearing whereby the lining is prepared as an

individual strip or by a full moulded bearing design whereby the lining is prepared as a continuous cylinder, usually

press moulded. In both cases, the lining is usually bonded to a backing shell by an adhesive process.

Cutless bearings were normally made according to fixed length, internal diameter (I. D.) and outer diameter (O. D.)

measurements. Besides the standard range available in the market, they can also be made according to request.

Grooves in the inner lining can vary in numbers and size depending on their suitability during service. The lining material

were normally made from ebonite rubber but can also be made from a softer material. Compression moulding was

normally used with suitable formulated compounds for both backing shell and the inner liner.

PRI driveline center support bearings are certified by SPICER (India) and are interchangeable with all major truck

applications. The Components can equip the most popular light-duty pick-ups, vans, mid-size trucks, school buses and

heavy duty highway vehicles.

Our bearings are constructed with frames made from reinforced heavy-gauge, cold-rolled steel for added strength,

resulting in increased durability and service life. The bearing inserts are pre-greased and sealed at the factory, with a

second grease barrier applied between the sealed bearing and dust shields to maximize protection – ready to install right

out of the box.

Design Attributes

•Design features radius edges, reinforced angles and elongated mounting holes.

• Housed unit comes ready to install for easy maintenance.

• Interchangeable with other brands.

•Reinforced design increases durability, extends service life and decreases operating costs-per-mile.

Application:

•Propeller Shaft of Passenger Cars, Utility Vehicles, LCV, MCV, HCVs

Typical Features:

•Designed to withstand dynamic centrifugal force as well as high-speed rotary movement.

•Rubber designed to withstand vibration and ozone properties. Properties & performance (Load deflection, endurance,

dynamic, mechanical & physical properties).

ELASTOMERIC SPRINGS(AUTOMOTIVE DRIVELINE SUPPORT BEARINGS

COUPLINGS

PRI produces a wide range of standard and customized coupling products. These products include large gear

couplings, elastomeric couplings and Flexible couplings.

Our products are used by Power transmission and other manufacturing and processing companies all over the world.

Our coupling provides sturdy connection between to pipe lines or shafts. The couplings are highly effective for

maintaining connection along the pipe, for sealing critical machine components or equipment where dust proofing is

required. Our coupling is widely known for its versatility in various sealing and fitting applications. Available in variety of

specification, these couplings have an excellent cushioning property.

Type of Product Polymer Reinforcement Process Performance

Application

Gear Coupling

&

Flexible Coupling

NR, CR,

NBR, SBR

NR, CR,

NBR, SBR

Transfer or

Compression

Moulding

Torque test

Fatigue test

Separation test

Industrial ,

Automotive,

Engineering

EXTRUDED PRODUCTS

Typical products Polymers Application

Window channel N R Automotive

Door Beading EPDM Defense

Glazing Rubber CR Railways

Sponge Cord Silicone Electrical & Electronics

Sponge Profile NBR Pharmaceuticals & Industrials

Tubing Various General Applications

PRI specializes in manufacturing various kinds of rubber extrusions like extruded rubber products,

extruded profiles.

The manufacturing techniques used for these extrusions are in line with international standards and

comply with ASTM (American Society for Testing & Materials) specifications.

Depending upon the end application these extrusions are manufactured in various sizes, shapes and

cross sections and can be made in EPDM, CR, NBR and NR etc.

MOULDED PRODUCTS

We are known as a distinguished Rubber Molded Components manufacturer. Our rubber

mold components are manufactured under the able guidance of highly qualified engineers.

These rubber molded components are highly durable and a masterpiece of engineering. Our

products are highly reliable and are known for their quality and performance.

Typical Products Specification Process

Grommets As perSAE,

ASTM,JIS,TY,IS&BS

Transfer Mouldingor

Compression MouldingGaskets

O Rings

Rubber Pads

Sealings

ELASTOMER MOOSE

Polymer Metal Process Typical Rubber property

CR

High Strength

Corrosion

Resistance

Aluminium

Alloy (6061-T6)

Transfer

Moulding

1.Tensilestrength : 130kg/cm² min

2.Elongation : 200% minimum break

3.Hardness : 70±5shore A

4.Ageing at (70°c for 168 hrs)

• Change in hardness : 7°shoreA(max)

• Change in tensile : 15% max

• Change in elongation : –25% max

5.Electrical resistance at 500V : 0.1 to 1 mega

6.Ozone resistance 300hrs at 50ppm : no cracks

Application:

Armour Grip suspension with insert is designed to reduce the static and dynamic stresses at the

conductor support point so that conductor is protected against the effect of wind induced motion and

suspension inserts are made in various sizes to fit different conductor known as Moose, Bersimis, Zebra,

Panther etc..

EXPANSION JOINT

FUNCTIONS

• To provide stress relief in ducting system by absorbing any difference in dimension caused by thermal change.

• To protect equipment by reducing equipment vibration.

• To provide simple connection of misaligned pipes.

The table given below gives information about various polymers, fabric as well as metals, which can be moulded

to form the Expansion Joints.

Polymer Fabric Metal Type Size Range Performance test

Capacity

CR

NBR

EPDM

NR

Butyl

Hyplon

Silicone

SBR

Canvas

Rayon

Polyester

Nylon

Glass-Fabric

MG

Aluminum

Single arch,

Multi arch,

Sleeve type,

Joint Type,

Wide arch

50mm

to

3000mm

Pressure Test

Permissible

movement Axial

compression Test

Axial Elongation

Test

Transverse Test

Base on dia

up to

25kg/cm²

Up to

200mm

Up to

75mm

Up to

75mm

BUSDUCT BELLOW

Type:

Rectangular Flange Bellow

Circular Flange Bellow

Rubber Sleeves

Slip on type round bellow

Function:

To take care of Thermal Expansion and contraction of Bus duct enclosure

To prevent transmission of vibration of electrical equipment like generator etc. to Bus duct.

To take care of the civil tolerance during Bus duct installation.

Typical Material Properties:

Material : EPDM or CR or Hypalon

Hardness : 40 50 SHORE A

Elongation at Break : 350% (Min.)

Tensile Strength before Ageing : 70 Kg / Cm2 (Min).

Insulation Resistance at 500 kV : >100 Mega ohms

HOSES

Type Reinforcement Polymer Performance Test Application

Water Hose Knitting EPDM Pressure test, Adhesion

Test, Ozone resistance

Industrial

Branch Hoses Knitting EPDM Burst Test, Adhesion Test

High Temperature Test,

Ozone Resistance Test

Automotive

Silicon Hoses Glass Fabric Silicon Adhesion Test, Pressure

Test, High Temperature Test

Industrial &

Automotive

Vacuum Hoses Braiding wire NR, CR,

EPDM

Adhesion Test , Test

Vaccum collapse Test

Industrial

Radiator

Hoses

Knitting EPDM Pressure Test, Adhesion Test

Ozone Resistance Test

Automotive

Agricultural

Hose

Braiding or Knitting NR, CR,

EPDM

Adhesion Test, Burst Test

Ozone Resistance Test Agriculture

Washing

Hoses

Braiding or knitting EPDM Adhesion Test, Burst Test General

application

Air Hoses Knitting EPDM, CR Pressure Test, Adhesion

Test, High Temperature Test

Automotive &

Railways

MANUFACTURING FACILITIES

Machine Load Capacity

Pressure Capacity

Max.Size ofPlatten

Heating Capacity

Features

Kneader Machine35Kg

100 to 150 PSI_

140°CmaxAutomatic & Manual

Mixing Mill 35Kg _ 14” x 38” 70°Cmax Manual

Mixing Mill 25Kg _ 12” x 32” 70°Cmax Manual

Transfer Moulding4.500 Kg 250Ton 26” 24” 200°Cmax

Automatic load &

unload of Moulds /

Dies

Hydraulic Press (8

Nos)

0.200 Gm to

5.000 kg50Ton to 200Ton

12” 12” to

24” 24” 170°C max Manual

Manual Press

( 6 Nos )

0.100 to

1.500 Kg

12” 12” to

20” 20” 170°C Manual

Extruders

( 3 Nos ) 500 Kg3 HP to 7.5 HP 1.5” to 3.5”

60°Cmax Manual

Vulcanizer

( 2 Nos )_ 80 PSI

1meter dia

2 ½ meter length 162c max Manual

MANUFACTURING FACILITIES

Machine Load Capacity

Pressure Capacity

Max.Size ofPlatten

Heating Capacity

Features

Knitting Machine

(2 Nos)_ _

20mmdia

80mm dia_

Automatic

Braiding Machine

(2 Nos)_ _ _ _ Manual

Boiler (2 Nos) _ _ _ _ Manual

Wrapping

Machine_ _ _ _ Manual

Ovens (2 Nos) _ _ _ _ Manual

Posphating Unit _ _ _ _ Manual

Shot Blasting _ _ _ _ Manual

TEST EQUIPMENTS

Description Type of Testing

Oscillation Disc Rheometer Curing rate of scorch time

Ozone Test Chamber (Dynamic) Ozone Test

Profile Projector Dimensional Check

Tensile Testing Machine Mechanical properties

Universal Testing Machine Mechanical properties

Resilience Tester Resilience

Endurance Tester Fatique properties

Torsion Stiffness Tester Bond Test Under Torque Load

Shore A Hardness Tester Hardness

Compressor Vacuum Tester Vacuum collapse Test

Melting Point Apparatus Chemical Test

Digital Ph Meter Chemical Test

Mono Pan Balance General

Specific Gravity Balance Rubber chemical Testing

Softening Point Apparatus Chemical Test

Cold Chamber Brittleness Test

Bench Centre General

Ovens Ageing Test

Muffle Furnance Ash content Test

Din Abrasion Tester Abrasion Test

Hot Plate General

Surface Plate General

Rockwell Hardness Tester Hardness Testing

Vernier Dimensional checking

Height Gauge Dimensional checking

Compression Set Apparatus Compression Test

Hose Endurance Testing Machine Performance Test

Burst Pressure Testing Machine Pressure Test

CAPABILITY TO PROCESS VARIOUS POLYMERS

NATURAL RUBBER (NR) HYPALON

STYRENE BUTADIENE SILICONE

EPDM POLYURETHANE

NITRILE (NBR) FLUROSILICON

BUTYL EPICHLOROHYDRIN

XNBR POLY BUTADIENE (PBR)

HNBR FLUROCARBON (VITON)

TPE (EPDM-PP BLEND) CHLORINATED POLYETHYLENE

POLYACRYLIC EPOXIDISED NATURAL RUBBER

CHLOROPRENE