Polyurethane Piston Seal with O-Ring Preload, KPUOR, KPUOR, Freudenberg Sealing Technologies (Dichtomatik)
Universal equipmentPrice on request
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Description
Piston seal made of thermoplastic polyurethane (TPU) with integrated O-Ring preload. Function: Seals piston; high mechanical strength, excellent abrasion and extrusion resistance. Material TPU: 95P85, 98P85 etc. Temperature range: -30°C to +100°C (TPU). Compatibility: Mineral oils, greases, HFA, HFB, water (≤ +50°C). Installation: Similar to compact seals. Applications: Mobile hydraulics, construction machinery.
Possible Applications
This double-acting piston sealing set is predominantly deployed in heavy-duty mobile hydraulic cylinders powering earthmoving equipment such as hydraulic excavators, wheel loaders, and backhoe loaders. It is ideal for high-pressure main lift, tilt, and stick actuation circuits where hydraulic fluid experiences rapid pressure spikes, severe dynamic shock, and continuous reversing cycles. Beyond earthmoving, the seal operates reliably in agricultural machinery like combine harvester hydraulic lifts, material handling equipment such as telehandlers and forklift mast cylinders, and industrial scrap baling presses. The combination of a tough polyurethane sealing ring and an elastomeric energizer ensures immediate sealing response during pressureless idling while preventing gap extrusion under harsh, abrasive jobsite conditions.
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Specifications
| Category | Universal equipment |
| Product ID | 8011110812-5051 |
