Bucher QX Double Gear Pump | QX41-050/21-016R, QX43-020/21-012R, QX31-020R

Bucher QX Series High-Pressure Ultra-Quiet Double Internal Gear Pumps

Product Overview: The Bucher QX Series is globally recognized as the gold standard for “Extreme Silence” and “High-Pressure Stability” in the hydraulic industry. This featured selection showcases core precision models, including high-performance tandem/double pumps QX41-050/21-016R and QX43-020/21-012R, alongside high-demand single configurations QX31-020R29, QX41-063R, and QX31-020R97. Built on a precision internal gear principle, these pumps are engineered for injection molding machines, die-casting equipment, and servo-driven systems. Even at extreme pressures of 32 MPa, they maintain minimal pressure pulsation, enhancing machining precision and extending the lifespan of hydraulic components.

Key Technical Advantages:

• Ultra-Quiet Operation: Utilizing internal meshing technology, these pumps operate at decibel levels significantly lower than traditional pumps—ideal for modern “Silent Factory” initiatives.

• Integrated Double Pump Supply: The QX41/QX43 double designs power two independent circuits (e.g., 050/016 or 020/012 displacement combos) from a single drive shaft, allowing for high/low-pressure combinations and optimized space layout.

• Perfect Servo Compatibility: Specifically optimized for variable-speed drives (VSD), maintaining high efficiency even at low RPMs or during pressure-holding phases, serving as the heart of energy-saving servo stations.

• Near-Zero Pressure Pulsation: Unique non-symmetrical gear profiles drastically reduce ripples, protecting sensitive proportional valves and ensuring smooth actuator movement.

• 100% Plug-and-Play Replacement: Strictly adheres to Bucher OEM specifications (including specific R29, R97 suffixes), ensuring identical flange patterns, shaft ends, and port positions.

Detailed Models & Parameters:

• Core Series: Bucher QX Double & Single Internal Gear Pump.

• Model Keywords: QX41-050/21-016R, QX31-020R29, QX41-063R, QX43-020/21-012R, QX31-020R97.

• Pressure Ratings: Rated at 25 MPa (250 Bar) continuous; Peak up to 32 MPa (4640 PSI).

• Displacements: Covering single-stage compact flows to multi-stage high-capacity tandem combinations.

• Target Applications: Servo-driven injection molding, high-precision press brakes, aerospace test rigs, and die-casting machinery.