In a proprietary co-injection process, a technical thermoplastic and a silicone are formed into a fully bonded high-precision composite, creating the 2-component part. This fully automated process makes Trelleborg Sealing Solutions a market leader in Liquid Silicone Rubber (LSR) injection molding and 2-shot processing capabilities. If requested, 2-Component parts can be produced in state-of-the-art cleanrooms which offer completely flashless parts for use within safety critical applications.
Automotive trends affecting liquid silicone rubber (LSR) injection molding
Benefits of 2-Component part solutions
2-Component solutions with LSR
Thermoplastic in combination with LSR
LSR co-injection or over-molding with a select range of technical thermoplastic substrates such as:
LSR in combination with LSR
Co-injection or Overmolding of dissimilar types of silicone into composite parts with varying properties such as:
Manufactured to meet the needs of electric vehicle manufacturers, HiSpin® rotary seals are specifically engineered for use in next-generation e-axles. A major technology in electric cars, e-axles combine the electric motor and gearbox in a single unit, which poses several unique sealing requirements:
HiSpin® rotary seals deliver optimum performance at high rotational speeds under extreme temperature and lubrication conditions:
O-Rings offer the designer an efficient and economical sealing element for a wide range of static and dynamic applications.
The large selection of elastomer materials for both standard and special applications, allow the O-Ring to seal practically all liquid and gaseous media.
PTFE based seals are always used if friction, media resistance, and space is an issue. Our Turcon®-PTFE materials, possess a very low friction coefficient and simultaneously a good shape stability against high pressures. They are the ideal materials to design a low friction seal which works with high pressures, minimal space and has a high media resistant. As PTFE does not have an elastomer-elasticity, these kinds of seals are actuated by an O-ring. The O-ring gives the needed elasticity to compensate for misalignment. All of the rod seals have a back pumping effect which enables the seal to bring eventual leakage back to the pressure chamber against the system pressure.
Learn more about some of our patented Turcon Seals
Rubore® Seals are produced through an advanced technology process which creates a sandwich composite material combining rubber, PTFE and metal layers.
Reduces weight:The dimensional stability of Rubore® Seals allows for the design of thinner metal walls which leads to significant weight reductions when compared to full elastomer seals.
Lower handling costs:The stiffness of Rubore® Seals saves assembly time and lessens logistic requirements, lowering overall manufacturing costs.
Compensates for roughness: The Rubore® technology is an effective way to cope with uneven surfaces and pinholes on metal parts. This eliminates the need for surface finishing and significantly reduces process steps and costs.
Easy Assembly: Assembly speed is increased and made easier through the stiffening of the elastomer component by the metal layer.
Shims / Insulators
Extended Seal Life and Low Friction
The Turcon® Roto L seal is the first ever active seal and is engineered to extend seal life on axle systems. Uniquely, it only seals when sealing is required. This reduces friction to lower fuel consumption and thereby conserves energy. It is ideal for sealing in drivetrain applications, such as the Central Tire Inflation Systems (CTIS).
Turcon® Roto L combines a PTFE based sealing lip with a rubber jacket and a stable shape-forming metal part. The seal’s patented design ensures that, for the majority of the time, the sealing lip is held lightly against the sealing surface until pressure is activated. This unique design offers features and benefits that no other seal can.
Features and Benefits:
Less pressure, less friction
Turcon® Roto L reduces shaft run-in significantly. A standard radial oil seal has a run-in of 10.1 μm after 168 h. In comparison, the Turcon® Roto L has a run in of 4.59 μm after 780 h, resulting in a seal life that is at least four times longer than a standard radial oil seal.