High-Pressure Pump is designed for bolting applications.

Press Release Summary:

Suited for use as power sources for hydraulic torque wrenches, ZU4T-Series incorporates LCD readout and 1.25 kW universal electric motor. Brush design features auto-stop shunt, while auto cycle feature provides continuous cycle operation. Offered in 700 and 800 bar max operating pressures with 4-8 L reservoir capacity, remote control pumps utilize heavy-duty bearings and have molded composite shroud with ergonomic, non-conductive handle.

Original Press Release:

Enerpac High-Pressure Pumps Designed Specifically for Bolting Applications

The new Enerpac-pump from the ZU4T-series.

Lit LCD-display

Building on the outstanding performance of the Z-Class product line, Enerpac is proud to introduce the ZU4T-Series Electric Torque Wrench Pumps. Like other pumps in the Z-Class family, the ZU4T Electric Torque Wrench Pumps are designed to deliver ease of handling and use, higher oil flow and bypass pressure, cooler running and require 18% less current draw than comparable pumps. These pumps are ideal power sources for all hydraulic torque wrenches. The pumps are offered in two maximum operating pressures: 700 and 800 bar; and the reservoir capacity is 4 to 8 litres.


Heavy-duty bearings extend pump life by reducing friction, reducing surface loading and lowering bearing stresses. The pump's high-strength, molded composite shroud protects motor and electronics, while providing an ergonomic, non-conductive handle for easy transport.


Remote control units with low-voltage pendants provide additional safety for the operator. Brush design lasts 4-times longer than current designs and features an "auto-stop" shunt to prevent commutator damage from normal brush wear. Auto cycle feature provides continuous cycle operation of the torque wrench as long as the advance button is pressed. (Pumps can be used with or without auto cycle feature.)


The LCD readout provides pressure display and a number of diagnostic and readout capabilities never before offered on a portable electric pump. The pump's powerful 1,25 kW universal electric motor provides high power-to-weight ratio and excellent low-voltage operating characteristics.

For more information please contact:

Enerpac BV
Irene Kremer
P.O. Box 8097
6710 AB Ede
The Netherlands
Phone: +31 318 535911
E-mail: Irene.kremer@enerpac.com

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