China Suppliers Factory Internal Gear Pump Sumitomo QT Series QT52 for Injection Molding Machine Integration
Technical Parameters
Inlet and outlet oil port positions Rotation |
Right |
Left |
|
N/M |
L |
|
F |
E |
FAQ
The core advantage is extremely high energy efficiency. Traditional fixed pumps run constantly at max pressure and flow, wasting excess energy via relief valves. This servo pump set delivers precise flow and pressure on demand, resulting in energy savings of up to 50-80% with minimal waste.
It provides improved product quality through more stable pressure and faster response times. This enables highly precise control over both the injection and holding phases, significantly reducing product defects.
It leads to a reduced oil temperature. Because the system minimizes energy waste, less heat is generated, which significantly lowers the hydraulic oil temperature and extends the overall operating life of both the oil and the seals.
Yes, this is a complete drop-in replacement solution. It is designed to directly replace the existing hydraulic power system on your injection molding machine with standard installation procedures.
The installation is standardized and primarily involves two main steps:
- Mechanical Installation: Mounting the pump set to the original location via a bracket and connecting the pump ports to the existing high-pressure lines.
- Electrical Connection: Connecting the servo drive to the main power supply and connecting the signal lines (pressure/flow commands) to the injection molding machine's control system.
Actually, the overall maintenance cost is typically lower due to:
- Extended Hydraulic Oil Life: Lower oil temperatures slow down oxidation, extending replacement intervals for 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 highly durable, and servo motors lack wear-prone components like brushes. The main maintenance task is simply keeping the hydraulic oil clean.






