‘serving the hydraulics industry for over 30 years’
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Hydra Products Micro Hydraulic Power Packs
The micro hydraulic power pack is very compact and can operate
both single acting (HPU) and double acting (HPR) applications.
Initially designed for mobility applications, they are perfect
wherever hydraulic power is needed but space is limited. Designed
around an 89 mm-square footprint, each micro hydraulic power
unit is available as an HPR reversible or HPU uni-directional
build. With 150–800 W DC and 150-375 W AC motors flow
rates of 5 litres/minute are possible, whilst pressures of
200 bar can be reached.
From the most compact unit to our largest standard AC hydraulic
power unit, the common denominators are the quality of in-house
design and manufacturing, experience in hydraulic power and
the care with which every product in each hydraulic power
pack range is matched to your requirements.
The HPR micro hydraulic power unit
The HPR micro hydraulic power unit offers the flexibility
to operate double acting hydraulic functions without the need
for solenoid control valves. By simply reversing the motor
the movement of a double acting hydraulic cylinder direction
can be controlled and the built in dual Pilot Check Valves
give leak free load holding. Dual pressure relief valves give
separate control in each direction whilst dual pilot check
valves prevent induced pressures and noise when excess full
bore cylinder flow returns to the tank. Variations in the
circuit can include manual overrides, motor spool control
and low noise relief valves.
The HPU micro power pack has a single acting hydraulic circuit,
the check valve and solenoid valve hold the cylinder load
up. A high quality hardened steel check valve insert ensures
low leakage and excellent load holding. Versions with Normally
open/closed solenoid check valves and low noise check valves
All of these micro hydraulic power packs have a precision engineered
aluminium manifold that houses the hardened steel valves. A carefully
developed micro hydraulic pump gives pressures up to 200bar. Each
manifold has an integrated 90 micron filter element, ensuring all
micro hydraulic systems are protected and give a long service life.
DC motors from 150 to 800Watt, in 12V and 24VDC. 150 and 250Watt
Fractional Horsepower AC motors as well as standard IEC frame
AC motors from 0.18kW to 0.37kW.
Pump sizes range from 0.17cc to 1.48cc/rev.
Tanks from 0.1 to 1 Litre, all of which can be in vertical (tank
uppermost) or horizontal orientation.
Mobility lifts where Wheelchairs are lifted from vehicles