DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of high pressure oil seal in China. If you're going to buy bulk high pressure oil seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.
Ordinary standard oil seals will suffer lip opening, oil blowout and rapid failure once the equipment chamber generates internal pressure. Our High Pressure Oil Seal adopts reinforced anti-pressure structural design, which maintains stable tight sealing contact between the sealing lip and rotary shaft even under long-term elevated internal pressure. It achieves dual protection: one side holds lubricant inside the transmission chamber to avoid waste and pressure leakage; the other side isolates dust, mud and cooling water from invading core moving components. Reasonable matching of material and cross-section profile can maximize sealing efficiency and long-term running stability under complex high-pressure working conditions.
Selection Recommendations
Four key parameters need comprehensive confirmation before model selection:
- Maximum continuous operating pressure of the equipment chamber
- Rated rotating speed of the matching shaft
- Type of lubricant / hydraulic medium (mineral oil, high-temp oil, corrosive additives etc.)
- Long-term operating temperature range Selecting matched rubber material and dedicated high-pressure lip profile can avoid premature aging, extrusion damage and oil leakage failure.
Typical Applications
Hydraulic gear pumps, plunger pumps and hydraulic motor assemblies
01
High-pressure sealed industrial gearboxes and heavy-duty speed reducers
02
Mine underground heavy mining equipment and rotary transmission systems
03
Tractors, harvesters and high-pressure agricultural hydraulic machinery
04
All heavy-load rotary transmission equipment with internal pressurized lubrication cavity
05
FAQ
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