VCM-SF & VCM-SM Series Variable Vane Pump | VCM-SF-20A, 20B, 20C | VCM-SM-30

VCM-SF & VCM-SM Series High-Performance Variable Displacement Vane Pumps

Product Overview: The VCM-SF and VCM-SM Series variable displacement vane pumps are the premier choice for achieving “Extreme Silence and Precision Pressure Control” in industrial hydraulic systems. As precision pressure-compensated pumps, they automatically adjust output flow based on system load demand. This range features core models including VCM-SF-20A/B/C-10, VCM-SF-12A-4CG-20, and the heavy-duty VCM-SM-30A/B-21. Utilizing a precision pressure compensation mechanism, these pumps de-stroke to near-zero displacement once the set pressure is reached—significantly cutting power consumption and system heat.

Key Technical Advantages:

• Automatic Pressure Compensation: The variable mechanism reacts instantaneously to load changes. During pressure-holding phases (deadhead), the pump operates at minimum power, saving up to 40% energy compared to fixed systems.

• Ultimate Silent Performance: Precision-ground vanes and optimized suction port geometry ensure operational noise remains at exceptionally low decibel levels even at its rated 7 MPa pressure.

• Low Temperature Rise Stability: Precision internal clearance management minimizes internal leakage and heat. This ensures minimal oil temperature rise during prolonged pressure-holding cycles, protecting the life of seals.

• Rapid Dynamic Response: The sensitive variable mechanism reacts instantaneously to actuator movements (e.g., cylinders or clamps), ensuring consistent stability for precision CNC equipment.

• Target Applications: CNC machine clamping circuits, automated tapping machines, precision grinding machines, specialized machine tools, and compact energy-saving hydraulic power units.

Detailed Models & Parameters:

• Core Series: VCM-SF / VCM-SM Series (Variable Displacement).

• Model Keywords: VCM-SF-20B-10, VCM-SF-20A-10, VCM-SF-20C-10, VCM-SF-2, VCM-SF-12A-4CG-20, VCM-SM-30A-21, VCM-SM-30B-21.

• Flow Rates (L/min): Key specifications including 12 L/min, 20 L/min, and 30 L/min (at 1800 rpm).

• Pressure Adjustment Ranges: A (0.8-1.5 MPa); B (1.5-3.5 MPa); C (3.5-7.0 MPa).

• Technical Specs: 10 / 20 / 21 (Design sequence codes); 4CG (Specific flow/pressure regulator valve configurations).