Home > ZU4 torque wrench pumps from Enerpac offer heavy duty time savings

ZU4 torque wrench pumps from Enerpac offer heavy duty time savings

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Available from Enerpac (A Division of Actuant Corp) , the ZU4 Pro Torque wrench pumps incorporate Firmware 7.0 programming that cuts out an entire step in the bolting process. The torque wrench pumps achieve this by enabling users to directly display torque in foot-pounds or Newton metres instead of having to convert them from conventional pressure output readings.

Users can select the torque wrench model on the pump’s output to create time savings through the automatic mode, says Pat Molloy, Enerpac’s National Bolting Manager. Users of the torque wrench pumps can either select to display pressure in MPa, psi or bar, or go to the Auto Cycle mode for faster setup of jobs without having to use hidden menus.

The Firmware upgrades are a new addition to the range of cool-running and energy-saving ZU4T torque wrench pumps, which can also be fitted with a four- wrench manifold designed specifically for bolting applications. Other new features include:

* A simplified valve design with fewer moving parts to withstand contaminants better, reduce wear and tear and increase durability, specifically engineered for bolting.

* Easily adjustable pressure setting with readily accessible pressure adjustment handle and pressure lock ring. A half turn changes pressure by 1,000 psi (70 bar)

The compact and highly portable ZU4 torque wrench pumps typically weigh between 32-36kg and are a new generation pump that has been engineered to save time and labour on repetitive tasks while improving operator safety.

ZU4T torque wrench pumps can be used for all major brands of 700 and 800 bar single-acting and double-acting torque wrenches, offering auto-cycle for continuous cycle operations and quick, secure coupling by way of Parker spin-on-couplers for 700 bar models and Enerpac lock-ring couplers for 800 bar models.

The efficient two speed torque wrench pumps feature higher oil flow and bypass pressure (85 bar) for cooler running that requires 18 per cent less current draw than comparable pumps. To provide even cooler operation by removing heat from bypass oil, an optional heat exchanger is also available.

New generation ZU4 torque wrench pumps are built to run cooler than conventional designs while offering greater durability, lower operating costs and simpler service in bolting-intensive industries, says Mr Molloy.

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