Hydraulic gear pumps
Gear pumps for compact power packs: a wide displacement range for every flow/pressure combination.
Page maintained by the Gazzera Srl engineering team, updated .
The gear pump is the heart of every power pack: two meshing gears turning motor rotation into oil flow. Gazzera fits group 1 and group 0.5 external hydraulic gear pumps with a finely graded displacement range, from 0.88 to 9.8 cm³/rev, letting you hit exactly the flow your application needs with no compromise on operating speed. Continuous pressures up to 230 bar with small displacements (130 bar on the 9.8 cm³/rev pump) and short peaks above 250 bar cover nearly all compact applications: lifts, dump bodies, machine tools, log splitters and, coupled with DC motors, complete 12V hydraulic pump units for mobile equipment.
Choosing the right pump means starting from the cycle, not the catalogue: flow from the required speed and pressure class from the load. Standard pumps run anticlockwise, with fixed rotation. Every pump is coupled to its motor through dedicated kits (couplings, flanges and bell housings from the same platform), so alignment is exactly as designed.
Typical applications
Compatible with the lines
Related guides
| Displacement | 0.88 to 9.8 cm³/rev |
|---|---|
| Continuous pressure | up to 230 bar, depending on displacement |
| Peak pressure | above 250 bar, short duration |
| Rotation | Anticlockwise |
Frequently asked questions
What pump displacements do you offer?
Gear pumps from 0.88 to 9.8 cm³/rev across group 0.5 and group 1. Displacement is chosen from the flow needed at the required operating speed.
Which way do the pumps rotate?
Standard pumps rotate anticlockwise, with fixed rotation. Correct direction must always be checked at start-up, since reversing it damages the pump.
Up to what pressure do they work?
It depends on displacement: up to 230 bar continuous with small displacements, 130 bar with the 9.8 cm³/rev pump; short peaks above 250 bar. The full table by displacement is on the line pages.
Related components
Electric motors
Single/three-phase AC and 12/24V DC motors coupled to the pump via dedicated kits, for continuous or intermittent duty.
Suction & return
Suction and return kits matched to the reservoir: strainers, filters and fittings sized to pump flow.
Manifolds
Aluminium manifolds for compact power packs, machined to drawing with configurable cavity count.
Have an application in mind?
Send us your diagram or specs: we reply with a technical proposal sized for your application.