Nachi IPH Series Pump | IPH-2B-3.5, IPH-5B-64, IPH-4B-32, IPH-3A-16 | Internal Gear Pump

Nachi IPH Series High-Performance Low Noise Internal Gear Pumps

Product Overview: The Nachi IPH Series represents the pinnacle of precision industrial hydraulics, renowned for exceptional high-pressure durability and industry-leading quiet operation. This featured selection includes core precision models: the micro high-pressure IPH-2B-3.5-11, high-displacement IPH-5B-64-11, and mid-range flagships IPH-4B-32-20, IPH-4B-20-20, and IPH-3A-16-20. Utilizing unique axial and radial pressure compensation technology, these pumps maintain near-perfect volumetric efficiency at pressures up to 30 MPa. As the premier power source for metal forming machinery, die-casting machines, and precision tool machinery, the IPH series has passed tens of thousands of high-frequency impact tests, making it the ultimate choice for OEM replacements.

Key Technical Advantages:

• Ultimate Silence & Low Ripple: The internal gear meshing architecture drastically reduces operational noise and pressure ripples, protecting downstream servo valves and sensors.

• Extreme Pressure Resilience: Rated operating pressures range from 25-30 MPa (3625-4350 PSI), maintaining peak efficiency under full load and significantly reducing system heat generation.

• Patented Compensation Technology: Automatic adjustment of axial and radial gaps ensures minimal performance degradation over the pump’s service life, keeping volumetric efficiency above 95%.

• Compact & Modular Design: The IPH series supports single-pump operation and is easily configured into tandem pumps, enabling multi-circuit oil delivery from a single drive source.

• 100% Interchangeability: Strictly adheres to Nachi factory standard interfaces (e.g., 11, 20 design codes), guaranteeing identical flange pilots, shaft ends, and port positions for seamless replacement.

Detailed Models & Parameters:

• Core Series: Nachi IPH Internal Gear Series.

• Model Keywords: IPH-2B-3.5-11, IPH-5B-64-11, IPH-4B-32-20, IPH-4B-20-20, IPH-3A-16-20.

• Displacements: 3.5cc, 16cc, 20cc, 32cc, 64cc/rev.

• Pressure Ratings: Rated at 25 MPa continuous; peak up to 30 MPa.

• Maximum Speed: Supports operating environments up to 2000-3000 RPM.

• Target Applications: Servo hydraulic power units, metal extrusion presses, injection molding clamping circuits, and precision bending machinery.