COMPANY PRESENTATION

SPECIALISTS IN SEALING SOLUTIONS

FOR HEAVY DUTY APPLICATIONS

WE DON’T SUPPLY JUST SEALS

WE WANT THE CUSTOMER TO

SAVE MONEY

HOW ?

- WE ANALYSE THE APPLICATION

- WE SUPPLY LONG-LASTING

SEALS

- NO MACHINE DOWNTIME

- CUSTOMER SAVES MONEY

WE ARE FAST

WE NEVER SAY “NO” WHEN

CUSTOMER NEEDS EVEN 1

SEAL ONLY AND TOMORROW

Carco Group

CARCO

Rubber proofed fabric seals

Basiano (Italy)

PRP

PTFE composite seals

Basiano (Italy)

Carco factory

Location: Basiano (Milan) Italy

Activity started in Milan

in the year 1900

Carco core competencies

• Manufacturing of rubber seals with fabric reinforcement

• Large seals up to 2,5 meters diameter and more (hot joint)

• Customized sealing solutions

• More than 8000 own moulds

• R&D in-house

• World sales network

Largest press in Europe

The 2600x2600

mm plate is

one of the

biggest presses

for rubber seals

in the world!

Delivery time

Standard delivery time:

3 weeks

Premium = only a few days

On time delivery performance

Above 95% of all order lines

Carco sales network

Main sales office in Basiano (Italy)

Domestic: 6 salesmen

Export: - Carco Germany located in Hamburg

- Carco China located in Shenzhen

- Technical distributors in every European Country and overseas: USA, Japan, India, South Korea, Thailand, Brazil, South Africa, etc.

Carco technical support

1 chemical engineers for rubber, fabric reinforcement, plastics and chemical compatibility

3 sales engineers for elastomeric seals

3 sales engineers for plastic seals

Sales engineers specialized per application:

- steel & aluminium rolling mills

- heavy hydraulics

- Marine

- wind power

- etc.

Technical dept available for customized sealing solutions

Quality and packing

• Certification ISO 9001 since 1992

• 100% Quality control of each single seal

• Contact free Laser measuring device

• Raw materials full traceability

• Individual packing

• Fitting instructions in every box

Carcoseal test rig

SHAFT DIA: UP TO mm 500

MAX SHAFT SPEED: 40 m/s

MAX OIL PRESSURE: 5 bar

MAX TEST TEMPERATURE:

100° C

STATIC ECCENTRICITY: UP

TO mm 2,5

DYNAMIC ECCENTRICITY: UP

TO mm 2,5

Material R&D

Our sealing solutions

CARCOSEAL radial shaft seals

CARCOTEX V-Packings

PRP - PTFE composite seals

OTHER SEALS – V-Rings, O–Rings, braided packings, wear rings,

mechanical seals, inflatable seals, customized seals.

CARCOSEAL radial shaft seals

Carcoseal/UN

Carcoseal/SCA

Carcoseal/AP/WT

Carcoseal/LDS

Carcoseal/UN/LL

Carcoseal/TAD

Carcoseal/TM

Carcoseal/TM/FR

Carcoseal/UN/LA/FS

Carcoseal/UN: fitted with retaining plate

Carcoseal/UN/Split: fitted with retaining plate

Carcoseal/UN/SF: self-retaining - fitted without retaining plate.

Carcoseal/UN

Hardened shoulder made of rubber fabric.

Stainless or Monel steel garter spring.

Lip in high performance rubber compound.

Available endless or split

Material Elastomer type

Pressure

(MPa)

Speed

(m/s)

Working

temperature (°C)

Peak

Temperatures(°C)

S820 NBR <0,05 15 -20 ÷ +100 -30 / +120

LT820 NBR Low temp <0,05 10 -30 ÷ +90 -45 / +110

HT720 HNBR <0,05 25 -30 ÷ +150 -45 / +170

Z420 FKM <0,05 25 -20 ÷ +180 -30 / +200

Market segments

• Shipbuilding industry

• Wind power

• Heavy Hydraulics

• Steel industry

• Aluminium industry

• Tunneling & Mining

• Hydropower

• Dredging

• Oil&Gas

• Paper and wood industry

• Cement industry

• Rubber industry

• Sugar industry

WIND POWER

CARCOSEAL APPLICATIONS

WIND TURBINE COMPONENTS

CARCOSEAL APPLICATIONS

• Typical application :

• Main shaft bearing

• Rotor bearing

• Gearbox shaft

• Generator output shaft

• Blade pitch bearing

• Yaw bearing

•Typical Carco Products :

•Carcoseal/UN

•Carcoseal/UN/LA

•Carcoseal/SCA

•Customized rubber profiles

CARCOSEAL APPLICATIONS

CARCOSEAL FITTED MAINLY ON MAIN SHAFT BEARING:

-ENDLESS VERSION FOR NEW BUILD

VIRTUALLY NO REPLACEMENT FOR THE ENTIRE WIND TURBINE

LIFETIME (SPECIAL RUBBER COMPOUND RECOMMENDED FOR

BEST FRICTION AND OZONE RESISTANCE)

-SPLIT VERSION FOR RUNNING TURBINES

REDUCING TO A MINIMUM MAINTENANCE TIME TO REPLACE

OTHER OIL SEALS

“We want the customer to save money”

CARCOSEAL rotary shaft seals

• NO LEAKAGE OF BEARING LUBRICANT

• NO CONTAMINATION OF BEARING LUBRICANT

• LONGER BEARING LIFETIME

• SPLIT VERSION AVAILABLE, SHAFT REMOVAL NOT NEEDED

• DOWNTIME REDUCTION

• MANPOWER COST REDUCTION

• LESS OIL SEALS PURCHASED

• BIG SAVINGS IN MAINTENANCE !

CARCOSEAL rotary shaft seals

OTHER CLUES:

- OUR OIL SEALS ARE EASY TO FIT

- NO LEAKAGE THROUGH SEAL AND HOUSING

- NO HOUSING DAMAGE DURING SEAL FITTING

“We want the customer to save money”

Carcoseal Benefits Rubber formulated with PTFE

to reduce friction

“Carcoflon” PTFE surface

treatment:

• No stick slip effect;

• Lip protection during

dry running.

• Friction reduction.

Stainless steel spring keeping

lip homogeneously in

contact with shaft.

Large contact area:

• Guarantee against leakage;

• Less radial contact pressure;

• Less heat generation;

• Less shaft wear.

Oil/Grease

Re

tain

ing p

late

PTFE SHAFT

SEAL LIP

MENISCUS EFFECT

• Lubricant is pumped into the contact zone by the shaft rotation and provides a separating oil film, reducing friction and providing cooling. The reverse pumping effect keeps the lubricant contained in the contact band.

Carcoseal Split version - straight cut into full rubber for better sealing

- overlength on seal circumference to compress split

area and prevent leakage

- quick screwing of the stainless steel garter spring

- gluing on site not needed for applications with no

pressure

- easy and quick seal replacement

Dedicated rubber compound for

wind turbines: HT700

- Hydrogenated NBR with additives for longer working life.

- Wide working temperature range: -45° / +150°C

- Ozone resistant

- Characteristics and compatibility with the most used greases have

been verified by a third part laboratory.

- Fully in accordance with FAG specifications: S131319-1 “HNBR75

for seals in wind power turbine”

THE ORBITAL 2 PROJECT

CARCO WAS RECENTLY INVOLVED BY

AN ENGINEERING COMPANY INTO THE

SEAL DESIGN OF A NEW GEARBOX

FOR A 3 MW WIND TURBINE.

THE BIG GEARBOX IS CONNECTED

DIRECTLY TO THE ROTOR.

THE SHAFT DIAMETER IS mm 1750

AND 2 SEALS ARE DESIGNED TO KEEP

LUBRICANT INSIDE THE BIG BEARING

AND TO PREVENT LUBRICANT TO BE

CONTAMINATED BY DUST AND OTHER

POSSIBLE AGENTS.

CARCOSEAL/SCA/SPLIT FITTED BACK

TO BACK WAS RECOMMENDED.

SPLIT VERSION TO EASE SEAL

FITTING.

H-NBR COMPOUND TO GUARANTEE

THE LONGEST SEAL SERVICE LIFE.

PROBLEM SOLVING FROM CARCO

CARCO SPECIALISTS INSPECTED A 1,5 MW WIND TURBINE IN SPAIN.

WE DETECTED BIG GREASE LEAKAGE FROM MAIN SHAFT BEARINGS DUE

TO DEEP GROOVES ON THE SHAFT SLEEVE FROM ORIGINAL OIL SEALS:

TOO SOFT STEEL UNDER CHROMIUM COATING.

WE SUGGESTED TO MOVE THE SEAL INSIDE THE HOUSING WITH A

SPACER IN ORDER TO CHANGE THE CONTACT AREA ON THE SHAFT.

WE DELIVERED CARCOSEAL/UN/SPLIT WITH FULL SATISFACTION OF THE

CUSTOMER.

OUR POSTER

FOR WIND

POWER

EXHIBITION

OUR FLYER

DEDICATED

TO

WIND POWER

MARKET

www.carco.it

Problem solving is a challenge we enjoy