GPA Series Double Internal Gear Pump | GPA2-10, GPA3-63, GPA1-4-4-EK1/2 | High Pressure Servo Pump

GPA Series High-Performance Ultra-Quiet Double Internal Gear Pumps

Product Overview: The GPA Series Double Pump serves as the vital power core for modern industrial hydraulic and servo-driven systems. By integrating two independent internal gear pump stages on a single drive shaft, this series is specifically designed for injection molding and bending machines that require dual-circuit independent oil supply or high-flow combination modes. This selection features core specifications: GPA2-6-6-EK1/2, GPA2-10-10-E, GPA1-4-4-EK1/2, and high-flow configuration GPA3-63-E-20-R6.3. These pumps offer extreme quietness and high-pressure stability (up to 25 MPa), ensuring smooth and efficient operation during complex cycle changes.

Key Technical Advantages:

• Extreme Quietness & Low Pulsation: Utilizing the precision internal meshing principle, these pumps deliver significantly lower decibel levels and minimal flow ripples, protecting downstream servo valves and reducing system vibration.

• Independent Dual-Circuit Power: Tandem configurations (e.g., GPA2-6-6) allow a single motor to simultaneously supply two circuits with different pressure requirements, streamlining system layout and reducing energy loss.

• Servo Drive Optimization: Specifically designed for variable-speed servo drives, maintaining stable high-pressure output even at extremely low RPMs with rapid response for maximum energy efficiency.

• 100% Plug-and-Play Replacement: Strictly adheres to industrial OEM specifications. Suffixes like EK1/2 and 20-R6.3 guarantee that mounting flanges, shaft ends, and port positions are 100% identical to the original units.

• Superior Volumetric Efficiency: Featuring automatic axial and radial pressure compensation to minimize internal leakage, maintaining efficiencies over 93% throughout the pump’s service life.

Detailed Models & Parameters:

• Core Series: GPA1, GPA2, GPA3 Double Pump Series.

• Model Keywords: GPA2-6-6-EK1/2, GPA2-10-10-E, GPA1-4-4-EK1/2, GPA3-63-E-20-R6.3.

• Displacement Combos: Covering 4+4, 6+6, 10+10, 63 cm³/rev and other flexible configurations.

• Pressure Ratings: Rated at 21 MPa (210 Bar); Peak pressure up to 25 MPa (250 Bar).

• Target Applications: Servo injection molding machines, CNC bending machines, precision press synchronized control, and multi-circuit hydraulic power units (HPU).