The term “high pressure” is usually used to refer to the pressure range above 450 bar. High pressure is primarily required in situations where heavy weights need to be moved or powerful movements need to be carried out with precision in tight spaces. High-pressure components can be used to build solutions with a high degree of weight and space optimisation. If a system can be expected to experience pressure peaks of up to 1000 bar, for example, high-pressure components are selected, as they can withstand these conditions without any problems. Not all typical hydraulic components are suited to high-pressure applications. We have put together a large selection using the HAWE Hydraulik modular system.
The high-pressure pumps from HAWE Hydraulik are characterised by their compact and robust design. They are suitable for demanding applications and very high pressure levels. Models suited to the high-pressure range include radial piston pumps, air-driven hydraulic pumps and dual-stage pumps.
Thanks to the radial configuration of its small piston pump elements, the radial piston pump is suitable for generating pressures of up to 700 bar. The elements are arranged in multiple rings, which enables the pump to generate higher flow rates with lower pulsation.
Pmax: 700 bar
Qmax: 91.2 lpm
Vg: 64.18 cm³/rev
The type-LP pumps are valve-controlled, alternating plunger pumps based on the principle of a pneumatic-hydraulic pressure amplifier. Depending on the transmission ratio (surface ratio – hydraulic piston : pneumatic piston), they can attain hydraulic pressures of up to 630 bar at an air pressure of 6 bar, for example.
Phydraulic max: 1500 bar
Pair max: 10 bar
Qmax: 12 lpm
If you want to combine speed with powerful movements (rapid traverse – creeping), a compact, dual-stage system is the right choice for your application. A gear pump feeds the system with a high delivery flow at low pressure, and a radial piston pump with high pressure but a low delivery flow. The two pumps and flanged directly onto one another to form a compact unit.
Pmax: 700 bar
Qmax: 91.2 lpm
Vg: 64.18 cm³/rev
The pump elements form the basis of the radial piston pump. When working in extremely tight spaces, they can also be installed separately. This allows the user to build almost any form of high-pressure system imaginable.
Pmax: 700 bar
Qmax: 4.2 lpm
Vmax: 1.52 cm³/rev
The double pump element type DMPE integrates both a low-pressure and a high-pressure piston. As soon as the low-pressure limit is reached, an in-built valve depressurises the low-pressure piston. Multistage pumps which can be adapted to a variety of demands can be designed by the user.
Pmax: 700 bar
Qmax HP: 0.2 l/min
Qmax LP: 0.65 l/min
Vmax: 0.46 cm³/rev
The pump elements form the basis of the radial piston pump. When working in extremely tight spaces, they can also be installed separately. This allows the user to build almost any form of high-pressure system imaginable.
Pmax: 700 bar
Qmax: 4.2 lpm
Vmax: 1.52 cm³/rev