50T Series High Pressure Vane Pump | 50T-19 50T-39 50T-43 | Fixed Displacement

The 50T Series high-pressure fixed displacement vane pumps from Chengyuan Hydraulic are high-reliability power components specifically engineered for industrial hydraulic systems. This series is widely utilized in applications requiring continuous high pressure combined with stringent noise control. The 50T range (including 50T-23-FR, 50T-43-FR) features advanced “Intra-vane” technology and a pressure-balanced design that effectively neutralizes radial loads on the rotor. As a flagship industrial pump from Chengyuan, every 50T unit undergoes 100% simulated full-load testing to ensure its volumetric efficiency and low-noise performance match original factory specifications, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Core Model Codes: 50T-17, 50T-19, 50T-23, 50T-26, 50T-30, 50T-36, 50T-39, 50T-43

• Displacement Range: 17 mL/r to 43 mL/r

• Max Operating Pressure: 21 MPa (210 bar / 3000 psi)

• Max Speed: 1800 rpm

• Min Speed: 600 rpm

• Rotation (FR): F (Flange Mount), R (Clockwise/Right-hand)

• Inlet/Outlet Ports: Flange or threaded options available

• Fluid Compatibility: Anti-wear hydraulic oils (ISO VG32/46/68)

Key Technical Advantages:

• Pressure-Balanced Intra-vane Design: The 50T series employs an intra-vane structure within the rotor slots, which automatically adjusts the vane tip pressure against the cam ring based on system pressure. This drastically reduces vane tip wear and provides superior sealing at 21MPa.

• Axial Clearance Automatic Compensation: The side plates are hydraulically loaded to compensate for clearances as pressure fluctuates. This ensures the pump maintains over 90% volumetric efficiency throughout its service life, reducing internal leakage and heat generation.

• Ultra-Low Noise Operation: The cam ring profile is computer-optimized to ensure smooth vane acceleration during transitions. Combined with precision-lapped valve plates and expansion grooves, it significantly suppresses pressure ripples, with noise levels typically below 68 dB(A).

• Extended Life Bearing System: Equipped with heavy-duty sleeve bearings lubricated by hydraulic fluid, offering excellent vibration damping and heat dissipation. This allows the 50T pump to excel in 24/7 continuous industrial environments.

Application Areas:

• Plastic Machinery: Power systems for horizontal/vertical injection molding and blow molding machines.

• Press Equipment: Small hydraulic presses, press brake auxiliary circuits, and balers.

• Industrial Machine Tools: Specialized modular machines and hydraulic stations for metal cutting equipment.

Expert Maintenance Tips:

• Rotation Verification: Before startup, verify that the motor rotation matches the pump marking (R for Clockwise). Reverse rotation will not only fail to prime but will also cause irreversible damage to the cam ring.

• Suction Height & Priming: The suction lift should ideally be within 0.5 meters. Ensure the suction line is perfectly airtight and that the suction strainer has a flow capacity at least 3 times the pump’s rated flow.

• Fluid Cleanliness: To extend the life of the vanes and cam ring, system filtration must be better than 25μm. Regularly monitor oil viscosity and condition to prevent “vane sticking” caused by fluid degradation.