Bucher QX Gear Pump | QX52-040R, QX62-125R, QX81-315R, QX21-012R | QXV Series

Bucher QX & QXV Series High-Pressure Low-Noise Internal Gear Pumps

Product Overview: The Bucher QX Series is globally recognized as the gold standard for “silent power” in industrial hydraulics. This featured selection includes core precision models: the mid-to-high displacement QX52-040R and QX62-125R, the heavy-duty QX81-315R, the compact QX21-012R, and the QXV25-006R / QXV24-006R specifically engineered for low-viscosity fluids. Built on a unique internal gear principle, these pumps are designed to meet the extreme demands of injection molding machines, die-casting equipment, and servo-drive systems for high pressure, low noise, and rapid response. Their non-symmetrical gear profiles ensure minimal pressure pulsation even at operating pressures up to 320 Bar.

Key Technical Advantages:

• Ultra-Low Noise Operation: Utilizing internal meshing technology, these pumps operate at significantly lower decibel levels than external gear pumps, perfect for quiet factory environments and environmental compliance.

• Superior Pulsation Control: Exceptionally low pressure ripples protect downstream servo valves and actuators, significantly enhancing system control precision.

• Perfect Servo Compatibility: Engineered for variable-speed drives (VSD), maintaining high pressure even at extremely low RPMs—the heart of energy-saving servo hydraulic stations.

• Special Fluid Support (QXV): The QXV models (e.g., QXV25-006R) are optimized for low-viscosity oils or synthetic fluids, providing elite wear resistance.

• Extended Service Life: Featuring hydraulically balanced designs that minimize mechanical contact between gears, ensuring tens of thousands of operating hours under continuous high-pressure duty.

Detailed Models & Parameters:

• Core Series: Bucher QX & QXV Performance Series.

• Model Keywords: QX52-040R, QX62-125R, QX81-315R, QX21-012R, QXV25-006R, QXV24-006R.

• Displacements: Covering a full industrial range from 12cc up to 315cc/rev.

• Pressure Ratings: Rated at 25 MPa continuous; Peak up to 32 MPa (4640 PSI).

• Target Applications: Servo-driven injection molding, high-precision die-casting, aerospace hydraulic test rigs, and refuse compactor drives.