Typical equipment
Not every machine in this industry uses hydraulics, and equipment architectures vary. Identify the particular hydraulic function before comparing pump configurations.
What the hydraulic system does
Depending on the machine design, hydraulic actuators can support clamping, injection or auxiliary movement. The pump supplies the circuit; valves and controls determine how the machine uses the flow.
Illustrative sequence only; the actual machine cycle and control system may differ.
What matters when selecting a pump?
Clamping, injection and auxiliary motion · A changing demand through the molding cycle
Which movement needs the flow?
Separate mold approach, injection, holding and auxiliary movements. Their operating points need not be the same.
What happens during holding?
Record holding time and the machine’s control strategy. A peak-flow requirement alone does not describe the full duty.
Is the drive speed controlled?
For a servo-driven installation, provide the motor and drive specification along with the required speed range. Confirm the pump’s permitted operating range.
- Describe how flow and load change through the machine cycle.
- Identify fixed-speed or variable-speed drive requirements.
- Include noise expectations, operating hours and available cooling.
Use the equipment specification to establish the operating envelope. Then review the exact pump model, mounting, shaft, rotation and ports. Ask for clarification where the model code or application requirements are incomplete.
From the application to a pump specification
Use flow, pressure, speed and installation requirements to shortlist a product. An industry name alone is not a selection rule.
Prepare a useful technical enquiry
Supply the machine function, flow and pressure requirements, drive details and expected cycle. For servo systems, clarify which motor, drive and control components are included in the project.
Include the required quantity, destination and delivery expectations. For a replacement, add the old pump’s nameplate and photographs of the installation.
Discuss your application ›Renowell product suitability requires a model-specific technical review. These examples are not customer case studies or approval claims.