Trelleborg
 
Dalatec integrates Trelleborg Sealing Solutions in many of their hydraulic and pneumatic applications.
We find Trelleborg to offer the finest quality "one –stop ship providing the best in elastomer, thermoplastic, PTFE and composite technologies..."
Trelleborg Sealing Solutions is a leading worldwide supplier, developer and
manufacturer of industrial seals, including O-Rings, Hydraulic and Pneumatic
Seals, Mechanical Face Seals and Rotary and Static Sealing Systems.
Trelleborg Sealing Solutions is a major international sealing force, uniquely placed to offer
dedicated design and development from its market-leading product and material
portfolio: a one-stop-shop providing the best in elastomer, thermoplastic, PTFE and
composite technologies for applications in aerospacem industrial and automotive
industries.
With 50 years of experience, Trelleborg Sealing Solutions engineers support customers
with design, prototyping, production, test and installation using state-of-the-art design
tools. An international network of over 70 facilities worldwide includes 30 manufacturing
sites, strategically-positioned research and development centers, including materials and
development laboratories and locations specializing in design and applications.
In our growing and extensive business supporting, hydraulic, pneumatics and motion
control, having an appropriate seal is paramount.
Here are some of examples:
Wind Turbines
Wind Power Engineering - Trelleborg Sealing Solutions
Winds of change: Trelleborg Sealing Solutions solves the sealing challenge within wind
turbine actuators
Trelleborg Sealing Solutions supplies a specially engineered sealing configuration to AVN Energy A/S,
a leading hydraulic actuator manufacturer for wind turbines. Meeting the dynamic criteria due to
constant movement of the actuator, the sealing system offers maximized seal life, contributing to
minimal turbine maintenance requirements.
Stall machine turbines being replaced by continuous pitch systems has put extreme demands on
hydraulic actuators. The position of stall machines would shift only once every ten minutes but in
continuous pitch wind turbine systems, the nacelle and angles of the blades constantly change in
small amounts once every rotation, on average 15 times per minute. This means that instead of
producing six long strokes per hour, the turbines hydraulic actuator must now initiate nine hundred
short strokes in the same period, 24 hours a day, seven days a week, for a targeted 20-year period.
The seals within the hydraulic actuators are integral to its performance, and optimizing seal life is
critical to the long‐term effectiveness of the total system. Seals must operate at 250 bars/ 3625 psi
with constant pressure on the rod from behind and differential side loads that control positioning.
Wear has to be minimized and dynamic movement that is continuous in short strokes needs to be
facilitated. Temperature resistance is required down to -30°C/-22°F as standard and to -40°C/-40°F in
the Artic, with maximum temperature capability of 60°C/140°F.
Additional Information
|