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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
100° C
TEMPERATURE:
STATIC ECCENTRICITY:
TO mm 2,5
UP
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,
mechanical seals, inflatable seals, customized seals.
wear
rings,
CARCOSEAL radial shaft seals
Carcoseal/UN
Carcoseal/TM
Carcoseal/TM/FR
Carcoseal/SCA
Carcoseal/UN/LL
Carcoseal/AP/WT
Carcoseal/UN/LA/FS
Carcoseal/LDS
Carcoseal/TAD
Carcoseal/UN
Available endless or split
Hardened shoulder made of rubber fabric.
Stainless or Monel steel garter spring.
Lip in high performance rubber compound.
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
Carcoseal/UN: fitted with retaining plate
Carcoseal/UN/Split: fitted with retaining plate
Carcoseal/UN/SF: self-retaining - fitted without retaining plate.
Market segments
•
Shipbuilding industry
• Wind power
• Heavy Hydraulics
• Steel industry
• Aluminium industry
• Tunneling & Mining
• Hydropower
• Dredging
• Oil&Gas
• Paper and wood industry
WIND POWER
CARCOSEAL APPLICATIONS
WIND TURBINE COMPONENTS
CARCOSEAL APPLICATIONS
• Typical application :
•Typical Carco Products :
•
•
•
•
•
•
•Carcoseal/UN
•Carcoseal/UN/LA
•Carcoseal/SCA
•Customized rubber profiles
Main shaft bearing
Rotor bearing
Gearbox shaft
Generator output shaft
Blade pitch bearing
Yaw bearing
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 !
“We want the customer to save money”
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
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.
Oil/Grease
SEAL LIP
SHAFT
Retaining plate
Carcoseal Benefits
PTFE
Large contact area:
• Guarantee against leakage;
• Less radial contact pressure;
• Less heat generation;
• Less shaft wear.
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
FITTING.
TO
EASE
SEAL
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