China Suppliers Factory Internal Gear Pump Sumitomo QT Series QT52 for Injection Molding Machine Integration
| Inlet and outlet oil port positions Rotation | Right | Left |
|---|---|---|
|
N/M | L |
|
F | E |
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.
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.
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.
The system features an extremely fast response dynamic. The servo motor can accelerate to its maximum speed within 50 milliseconds, allowing the pump to reach its target pressure and flow rate instantly. This rapid response significantly shortens the dry cycle time of the injection molding machine, increasing overall production efficiency.
Sumitomo internal gear pumps utilize a unique conjugate tooth profile design that minimizes pressure pulsation and fluid trapping. Combined with the servo motor's ability to run at low speeds or stop during non-action phases (such as cooling), the average operational noise of the system is reduced to under 65 dB(A), creating a much quieter factory environment.
Model selection is based on your machine's clamping force, maximum system pressure, and maximum flow requirements. You can check the parameters of your existing pump or contact our technical engineers with your machine specifications, and we will calculate and recommend the optimal servo pump configuration for your system.