Products Description
Designed with symmetrical porting to ensure smooth torque output in forward and reverse operation, our Bimetal Vane Motor Valve Plate fuses a CuPb7Sn7Zn3 bronze layer onto a heavy carbon steel backing. We manufacture this high-precision Bimetal Vane Motor Valve Plate for vane motors deployed in injection molding clamp units, machine tool rotary tables, and light industrial equipment. Thanks to self-lubricating bronze properties and micro-finished port faces, our Bimetal Vane Motor Valve Plate suppresses pressure pulsation to within ±5%, preventing low-speed motor crawl and safeguarding the rotor vanes from thermal galling.
Application Scenarios
- Bi-directional fluid distribution in fixed- and variable-displacement vane motors.
- Hydraulic rotary drive tables in CNC machine tools and mold-adjustment motors.
- Rebuilding and aftermarket servicing for industrial vane drive systems.
Technical Specifications
|
Composition |
Carbon steel backing + CuPb7Sn7Zn3 bronze layer (Sintered & rolled) |
|
Rated Working Pressure |
≤21 MPa (Custom high-pressure model to 28 MPa) |
|
End-Face Flatness |
≤0.004 mm (Roughness Ra ≤0.2 μm) |
|
Port Pressure Pulsation |
≤±5% (Symmetrical timing slots) |
|
Maximum Sliding Velocity |
12 m/s |
Customization Capabilities
- Symmetrical port slot geometry and silencing ramps optimized for smooth motor reversal.
- Custom outside diameters, locating pin holes, and high-pressure ratings up to 28 MPa.
- Prototype tooling and sampling completed within 30 days; MOQ from 100 units.
Quality Control
- Precision coordinate CMM verification on symmetrical port timing and window angles.
- Laser profilometer surface checks ensuring Ra ≤0.2 μm on all critical valve faces.
- 100% pre-shipment audit including deburring, ultrasonic wash, and anti-rust sealing.
FAQ
Q: How does this valve plate eliminate low-speed motor stutter or crawling?
A: The self-lubricating CuPb7Sn7Zn3 bronze layer minimizes static-to-dynamic friction variance, allowing steady oil film formation and smooth rotation at low RPM.
Q: How long is the warranty, and what does it cover?
A: We provide a 6-month Three Guarantees warranty covering all non-human manufacturing flaws, with return or replacement handled within 3–5 days.
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