Injection Molding Machine Hydraulic Pump | 890-EI-0320-RS2-C301, 890-EI-0400, 890-EI-0500

890-EI Series High-Pressure Low-Noise Internal Gear Pumps for Injection Molding Machines

Product Overview: The 890-EI Series serves as the powerhouse for injection molding machine (IMM) servo-hydraulic systems. This featured selection covers the full range of displacement specs: 890-EI-0250, 890-EI-0320, 890-EI-0400, and the massive 890-EI-0500, with a focus on the core model 890-EI-0320-RS2-C301. Built on precision internal gear technology, these pumps are engineered to meet the rigorous demands of large-scale IMMs for high pressure, high flow rates, and rapid response times. Their superior axial and radial pressure compensation ensures elite volumetric efficiency throughout the pump’s service life.

Key Technical Advantages:

• Deep IMM Optimization: Internally reinforced for critical molding phases like clamping, injection, and pressure holding, offering industry-leading pressure response.

• Ultra-Quiet Operation: The internal meshing design delivers decibel levels significantly lower than traditional pumps—ideal for modern, quiet production environments.

• Servo-Drive Compatibility: Specifically optimized for variable-speed servo motors, maintaining high-pressure output even at extremely low RPMs, contributing to massive energy savings for the machine.

• Minimal Pressure Pulsation: Precision gear meshing drastically reduces ripples in the oil circuit, protecting sensitive servo valves and ensuring the dimensional accuracy of molded products.

• 100% Plug-and-Play Replacement: Strictly adheres to RS2-C301 interface specifications, ensuring identical flange patterns, shaft splines, and port positions for guaranteed seamless maintenance.

Detailed Models & Parameters:

• Core Series: 890-EI High Pressure Servo Series.

• Model Keywords: 890-EI-0250, 890-EI-0320-RS2-C301, 890-EI-0400, 890-EI-0500.

• Displacements: 250cc/rev, 320cc/rev, 400cc/rev, 500cc/rev.

• Pressure Ratings: Rated at 25 MPa (250 Bar) continuous; Peak at 30 MPa (300 Bar).

• Target Applications: Large-scale all-electric/hybrid IMMs, high-precision die-casting machines, servo-driven hydraulic units, and rubber machinery.