HAWE Radial Piston Pump Element MPE 4/5/6/7/8/9

The suction valve inlet of the pump element must be entirely below the oil level to prevent any air being drawn in.

The piston and roller bearings must be fully immersed under the oil level during continuous operation

to ensure continuous lubrication.

Material: Steel; hardened, ground functional inner parts

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Temperatures Ambient: approx. -40 - +80°C, Fluid: -25 - +80°C, Note the viscosity range!

Start temperature: down to -40°C is permissible (observe start viscosities!),

as long as the steady-state temperature is at least 20K higher during subsequent operation.

Biologically degradable pressure fluids: Observe manufacturer's specifications.

By consideration of the compatibility with seal material not over +70°C.

stroke frequency: min. 200 rpm, max. 2850 rpm

Below min. stroke frequency: volumetric efficiency will drop swiftly.

Above max. stroke frequency: suction problems may occur (with small cylinder diameters)

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Weight:

MPE 4 - 9: 90 g

Drive type: motor via rotating shaft

Shaft rotation direction: any (direction of delivery remains unchanged)

A roller bearing is mounted eccentrically on the shaft. The outer race of the bearing acts on the back of the pump element.

This generates the lifting movement in conjunction with the return spring.

The flow rate is controlled by automatic suction and pressure control valves in the housing of the pump piston plunger.

Features of Pump piston:

available as individual unit

universal usage

suited to high pressures of up to 700 bar

Intended applications:

Machine tools

Devices for workpiece clamping

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Type	Piston	Geometric displacement Vg (cm3/rev)	Flow rate Q (lpm)		Piston force in stroke direction per 1 bar (N)	Power required per 100 bar (kW)		pmax (bar)


			1450 rpm	2850 rpm		1450 rpm	2850 rpm
MPE	4	0.062	0.09	0.18	1.26	0.018 k	0.033 k	700
	5	0.096	0.14	0.27	1.96	0.026 k	0.050 k	700
	6	0.14	0.2	0.4	2.83	0.036 k	0.073 k	700
	7	0.19	0.28	0.54	3.85	0.050 k	0.10 k	700
	8	0.25	0.36	0.71	5.03	0.070 k	0.13 k	700
	9	0.31	0.45	0.89	6.36	0.087 k	0.17 k	550