Injection Molding Machine Gear Pump | 890-EI-1000-RS2, 890-EI-0640-RS2, 890-EI-1600-RK2

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

Product Overview: The 890-EI Series represents the pinnacle of servo-hydraulic power for high-end all-electric or hybrid injection molding machines. This featured selection includes core precision models: 890-EI-1000-RS2-C50, 890-EI-0640-RS2-C502, and the heavy-duty 890-EI-1600-RK2-C601. Utilizing advanced internal gear technology, these pumps are engineered to meet the rigorous demands of precision injection, die-casting, and automated servo machinery for high-pressure stability, ultra-low noise, and rapid pressure response. Their unique non-symmetrical gear design ensures unparalleled durability at operating pressures up to 32 MPa.

Key Technical Advantages:

• Ultra-Low Noise Operation: Based on the internal meshing principle, these pumps operate at significantly lower decibel levels than traditional pumps—perfect for silent factory initiatives and environmental compliance.

• Perfect Servo Compatibility: Engineered for variable-speed drives (VSD), maintaining high pressure even at near-zero RPMs—the heart of energy-saving servo-driven injection molding systems.

• Minimal Pressure Pulsation: Optimized gear profiles drastically reduce pressure ripples, protecting sensitive proportional valves and actuators while enhancing the precision of molded products.

• High Volumetric Efficiency: Features automatic radial and axial gap compensation to minimize internal leakage, maintaining efficiencies over 95% and reducing overall system heat generation.

• 100% Plug-and-Play Replacement: Strictly adheres to original 890-EI installation standards (e.g., RS2, RK2 connection specs), ensuring identical flange patterns, shafts, and port positions.

Detailed Models & Parameters:

• Core Series: High Pressure Internal Gear Pump for Servo Systems.

• Model Keywords: 890-EI-1000-RS2-C50, 890-EI-0640-RS2-C502, 890-EI-1600-RK2-C601.

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

• Connection Logic: Supports RS2 (Standard Flange) and RK2 (Reinforced Connection) specifications.

• Target Applications: Precision injection molding, hybrid die-casting machines, servo-hydraulic test rigs, and high-precision metal extrusion.