Yuken A1656 Pump | A1656-LR01H01CK | A56-F-R-04-H | A37-F-R-01 | Hydraulic Piston Pump

Yuken A Series High-Pressure Variable Axial Piston Pumps

Product Overview: The Yuken A Series is a global benchmark for high-efficiency, low-noise, and compact hydraulic piston pumps. This page highlights precision configurations engineered for heavy-duty press and high-pressure systems: including the high-performance double pump A1656-LR01H01CK-32174 (a combination of A16 and A56 frames), and core single pump models A37-F-R-01-C-K32 and A56-F-R-04-H-K-A-3266. Utilizing an optimized swash-plate design, the A series maintains elite volumetric efficiency at operating pressures up to 280 Bar, making it the premier choice for metal stamping presses, injection molding machines, industrial presses, and precision hydraulic power units.

Key Technical Advantages:

• Superior Energy Efficiency: Advanced compensator controls (LR, H, C control types) adjust displacement in real-time according to load demand, significantly reducing energy waste and system heat.

• Low-Noise Operation: Featuring unique noise-reduction valve plate technology, these pumps maintain exceptionally quiet operation even at high pressures and speeds, enhancing the workplace environment.

• Double Pump Integration: The A1656 series utilizes a tandem configuration to provide dual-flow output, meeting the complex flow requirements of presses during fast-down, pressing, and return cycles.

• Extended Service Life: Core friction pairs (pistons and slippers) are crafted from high-strength, wear-resistant materials, improving contamination resistance and stability under continuous duty.

• Versatile Control Options: Available with pressure compensation (Type 01), remote pressure control (Type 04), and constant power control logic.

• Target Applications: Heavy hydraulic presses, aluminum extrusion machines, CNC press brakes, and scrap balers.

Detailed Models & Parameters:

• Core Series: Yuken A Series Variable Displacement Piston Pumps.

• Model Keywords: A1656, A37, A56, A1656-LR01H01CK, A37-F-R-01-C, A56-F-R-04-H.

• Technical Specs Decoding:

  • A1656-LR…: Combination pump of A16 and A56 frames with constant power and pressure control.

  • A37-F-R-01: 37cc displacement, flange mount (F), clockwise rotation (R), pressure compensator control (01).

  • A56-F-R-04: 56cc displacement, equipped with a remote pressure compensator (04).

• Pressure Specs: Rated pressure 21 MPa (3000 PSI), Maximum peak pressure reaching 28 MPa (4000 PSI).