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China Suppliers QT52 Servo Pump Internal Gear Pump from Factory for Injection Molding Machines

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Main Features
Advanced Subwoofer Design: Our pump features a unique linear conjugate internal meshing tooth profile that effectively eliminates oil trapping issues. This innovation significantly reduces both noise and pressure pulsation, ensuring that even under increased pressure, sound levels remain minimal.
Superior Durability: Manufactured using specialized materials and advanced processing techniques, our pumps are designed for extended lifespan and reliability, making them an ideal choice for various applications.
Minimal Pulsation: With nearly zero pulsation, our pumps are perfect for systems that require precise speed control, enhancing overall efficiency and performance.

As a leading China supplier and factory for high-quality pumps, we are committed to delivering exceptional products that meet global standards and customer satisfaction.

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    Technical Parameters
    Inlet and outlet oil port positions Rotation Right Left
    sumitomo-gear-pump-2 N/M L
    sumitomo-gear-pump-3-1 F E
    sumitomo-gear-pump-1
    FAQ
    Q1 What are the main advantages of this servo pump set compared to my current fixed-displacement pump + asynchronous motor system on the injection molding machine?

    The core advantages are extremely high energy efficiency, superior control precision, and significantly reduced operating noise.

    Energy Saving up to 50-80%: Traditional fixed pumps run constantly at max pressure/flow, wasting excess energy via relief valves. The servo pump set delivers precise flow/pressure on demand, with minimal waste.
    Improved Product Quality: More stable pressure and faster response enable more precise control over injection and holding phases, reducing defects.
    Reduced Oil Temperature: Less energy waste means significantly lower hydraulic oil temperature, extending the life of oil and seals.
    Q2 Can this servo pump set directly replace the existing hydraulic power system on my injection molding machine? Is the installation complicated?

    Yes, this is a complete drop-in replacement solution. The installation process is standardized, primarily involving:

    Mechanical Installation: Mounting the pump set to the original location via a bracket and connecting pump ports to existing high-pressure lines.
    Electrical Connection: Connecting the servo drive to the main power supply and signal lines (pressure/flow commands) to the injection molding machine's control system.
    Q3 Is the maintenance cost of the servo system higher than that of a traditional system?

    Actually, the overall maintenance cost is typically lower. The reasons are:

    Extended Hydraulic Oil Life: Significantly reduced oil temperature slows oxidation, greatly extending the replacement intervals for hydraulic oil and filters.
    Reduced Component Stress: The system no longer requires long-term high-pressure relief, reducing fatigue on pumps, valves, and fittings.
    High Reliability: Sumitomo internal gear pumps are known for their durability, and servo motors have no wear-prone components like brushes. The main maintenance task is keeping the hydraulic oil clean.
    Q4 How does the internal gear design of Sumitomo pumps benefit the overall servo system?

    The internal gear configuration provides exceptionally low flow pulsation and minimal noise. When paired with a dynamic servo system, it ensures smoother transitions and higher response speeds during pressure and flow adjustments.

    Q5 What key parameters should I provide to choose the correct model for my machine?

    You should primarily provide the maximum system pressure, the required displacement or maximum flow rate, and the mounting flange dimensions of your original pump setup.

    Q6 Can this servo pump set be used in applications other than injection molding?

    Yes, it is highly suitable for various hydraulic machinery demanding precise speed and pressure control, such as hydraulic presses, die-casting machines, and bending machines.

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