Butter and lubricating oil rotary joint
Grease & lubricating oil rotary union is specially designed for lubricant media. It continuously transfers grease or lubricating oil from stationary pipeline to rotating parts while 360° spinning, to realize centralized lubrication for bearings, gears and other rotary components. Widely used in construction machinery, mining equipment, rotary platforms, winches, cranes and automatic rotary fixtures.
Butter and lubricating oil rotary joint
Butter/lubricating oil rotary joint is a specialized rotary joint for lubricating media. It is used to transport lubricating grease (butter) and lubricating oil from fixed pipelines to rotating parts under the condition of continuous 360 ° rotation of equipment, achieving continuous centralized oil supply lubrication and ensuring long-term lubrication of rotating mechanism bearings, gears and other components. It is widely used in engineering machinery, mining equipment, rotating platforms, winches, cranes, automated rotating fixtures and other scenarios.
Features
- Media: Grease, gear oil, hydraulic lubricant. Optimized flow channel for high-viscosity grease to avoid clogging.
- Sealing: Wear-resistant mechanical seal and anti-extrusion sealing rings, optimized for thick grease, stable sealing under low speed & high pressure.
- Structure: Single or multi-channel optional, threaded or flange connection for installation.
- Material: 45# blackened steel housing, stainless steel rotor. Seals made of oil-resistant rubber, graphite and silicon carbide, resisting oil swelling.
- Performance: Low rotating torque, dust & impact resistant, suitable for heavy-duty and dusty outdoor working conditions.
Application
Construction machinery, excavator slewing system, crane, mining machine, rotary table, winding equipment, heavy-duty rotary automation machinery.
| Item | Parameter | Remarks |
|---|---|---|
| Product Name | Grease & Lubricating Oil Rotary Union | For centralized grease lubrication system |
| Nominal Diameter | DN6 / DN8 / DN10 / DN15 / DN20 | Customizable |
| Working Medium | Grease, gear oil, hydraulic lubricating oil | Suitable for high viscosity grease |
| Max Working Temperature | -20℃ ~ +120℃ | Depends on seal material |
| Rated Working Pressure | 10~40 MPa | Static pressure test: 1.5 times rated pressure |
| Permissible Rotation Speed | 0~50 rpm | Mainly low-speed heavy-duty application |
| Structure Type | Single channel / Multi-channel | Thread or flange connection |
| Housing Material | 45# steel blackened | Anti-rust, impact resistance |
| Rotor Material | 304 stainless steel | Wear-resistant |
| Seal Material | Oil-resistant rubber, graphite, silicon carbide | Anti oil swelling |
| Rotating Torque | Low friction torque | Stable rotation |
| Application Environment | Dust-proof, outdoor heavy duty | Construction & mining machinery |
| Service Life | ≥20000 h | Regular seal inspection |
| Leakage Grade | No dripping, minor oil film allowed | Standard for grease rotary joint |
