Which hydraulic pump suits the cylinder?

Pressure rating of the complete system

The pump, cylinder and all connections need a suitable pressure approval. The manufacturer explicitly warns against combining a high-pressure pump with lower-rated system components. The pressure stated on the pump therefore does not automatically approve the rest of the circuit.

For an existing system, hoses, couplings, valves and measuring instruments are therefore identified as well. Photos of the nameplates reduce follow-up questions.

Action and valve

Single-acting and double-acting cylinders require different controls. Holding, return flow and behaviour with the drive switched off also differ. The appropriate directional valve is determined from these functions.

A larger or faster pump cannot compensate for an unsuitable valve function. The desired movement and holding behaviour is therefore described first, before selecting the appropriate pump version.

Oil quantity and speed

The reservoir must provide enough usable oil for the intended working travel. Flow rate at the required pressure, together with the cylinder oil requirement, determines how quickly movement can occur.

Manual, battery, electric and air drives provide different options for the site. Available energy supply, working cycles and transport requirements complement the hydraulic selection criteria.

Important for your enquiry

• What is the complete cylinder model?
• What control functions are required?
• How much oil is needed and what working speed is desired?

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