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When bolting crews move from one maintenance job to the next, a large industrial pump can quickly become more equipment than the application requires. The Enerpac Electric Hydraulic Torque Wrench Pump (ENP-LU2504TE-QR) is designed to provide a lighter, more practical option for intermittent-duty torque wrench work.

Powered by a standard 115V electrical supply, the (ENP-LU2504TE-QR) combines a compact footprint, two-stage oil flow and a maximum operating pressure of 10,000 psi. It gives maintenance and repair teams the pressure and speed needed for controlled bolting applications without the size and weight of a continuous-duty industrial pump.

Built for Intermittent Torque Wrench Applications

The LU-Series was developed for crews performing localized bolting, maintenance and repair work. These applications still require reliable hydraulic pressure, but they may not need the capacity or continuous-duty performance of a larger pump. That is where the (ENP-LU2504TE-QR) fits.

Its 115-cubic-inch usable oil capacity is sized for common torque wrench jobs rather than oversized for applications it may never handle. This helps keep the overall package compact while still supporting Enerpac hydraulic torque wrenches across a wide range of field applications.

The pump is calibrated specifically for torque wrench duty cycles. Its two-stage design moves oil quickly under no-load conditions before transitioning to a controlled flow as pressure increases. This allows the system to advance faster and reach working pressure efficiently.

Lightweight Enough for the Jobsite

Portability is one of the main advantages of the Enerpac (ENP-LU2504TE-QR).

The pump weighs approximately 33 pounds when empty and 41 pounds in its operating configuration. Its compact frame measures just 14.63 inches high, 12.4 inches long and 13.6 inches wide. That makes it easier to transport through plants, mechanical rooms, elevated work areas and other locations where access may be limited.

Multiple lifting points and angled handles give workers several ways to carry and position the pump. The surrounding roll cage helps protect the internal components during transportation and use, while the removable front plate provides rugged protection without making routine access unnecessarily difficult.

Instead of trying to make a smaller pump look capable through exaggerated specifications, Enerpac focused on practical portability, jobsite durability and dependable performance.

Durable Construction Without Unnecessary Bulk

A lightweight pump still needs to survive real working conditions.

Enerpac designed the LU-Series around demanding duty cycles, transportation impacts and harsh jobsite environments. Critical components are protected inside a durable roll-cage frame, helping the pump withstand the drops, bumps and rough handling that can happen during maintenance work.

The aluminum reservoir provides enough oil for common bolting applications without adding unnecessary capacity or weight. Front-panel protection, an over-temperature indicator and accessible controls help make the pump suitable for regular field use.

This balance between protection and portability is especially valuable for mobile crews that need to carry equipment into different areas throughout the day.

Two-Stage Oil Flow for Faster Operation

The ENP-ZE3308SB uses a two-stage hydraulic pump to improve operating speed.

Under no load, it produces an output flow of up to 190 cubic inches per minute. This allows the torque wrench system to advance quickly before resistance is encountered. At the pump’s rated pressure, flow adjusts to 20 cubic inches per minute, providing the controlled hydraulic output required during tightening.

By moving quickly at lower pressures and slowing as pressure builds, the pump reduces unnecessary waiting between bolting cycles. This can make a noticeable difference during repetitive flange maintenance, equipment repair and other multi-bolt applications.

The pump reaches a maximum operating pressure of 10,000 psi, or 700 bar, making it compatible with standard high-pressure hydraulic torque wrench systems.

Pendant Control Keeps Operation Close at Hand

The LU2504TB-QR includes a detachable pendant control with a 20-foot cord. Large control buttons make it easier to operate while wearing work gloves, and the pendant includes both a hanger loop and a magnet for convenient placement.

When the pendant is not being used, it can be stored in the pump’s integrated pocket. The detachable design also makes the control easier to replace or store separately during transportation.

The pendant is protected against environmental exposure, and sealed internal components help support dependable operation in demanding maintenance settings.

Easy-to-Read Pressure Gauge

A four-inch, glycerine-filled pressure gauge is mounted at an upward angle on the front of the pump. This positioning improves visibility when the unit is placed on the floor, a platform or another low working surface.

The gauge displays pressure in both psi and bar, allowing operators to monitor the hydraulic system without repeatedly bending down or repositioning the pump.

Its sealed construction and glycerine filling help reduce pointer vibration, providing a steadier reading as pressure changes.

Compact Dimensions for Confined Work Areas

The LU2504TB-QR is sized for applications where space is limited.

Its dimensions are:

Height: 14.63 inches
Length: 12.4 inches
Width: 13.6 inches

The compact, nearly square footprint makes the pump easier to place near machinery, structural connections, piping systems and industrial equipment. It is also less likely to interfere with surrounding work than a larger, long-frame hydraulic power unit.

For crews working on elevated platforms or inside congested facilities, the smaller size can be just as important as the reduced weight.

Who Is the Enerpac LU-Series Pump Designed For?

The LU2504TB-QR is a strong fit for maintenance technicians, industrial contractors, millwrights and bolting crews that regularly perform intermittent torque wrench work.

Potential applications include equipment maintenance, flange bolting, plant shutdown work, machinery repair, structural connections and other controlled tightening jobs.

It is particularly useful when crews need to move frequently between locations. The compact frame and manageable weight make it easier to carry into confined areas, up stairs or onto elevated platforms than a larger continuous-duty pump.

For high-volume production or nonstop industrial bolting, a heavier continuous-duty system may still be more appropriate. The LU-Series is intended to fill the space between small localized jobs and the most demanding continuous applications.

Not every torque wrench application requires the largest pump available. Choosing a pump that matches the actual duty cycle can make the equipment easier to transport, position and operate.

The Enerpac LU2504TB-QR provides a practical option for intermittent bolting work by combining 10,000 psi performance, fast two-stage flow and a compact roll-cage design. Its detachable pendant, visible pressure gauge and jobsite-ready construction help simplify operation without sacrificing the durability expected from Enerpac equipment.

For crews that need reliable hydraulic power without hauling an oversized system to every job, the LU-Series offers a more balanced solution. Don’t hesitate to reach out at cs@ohiopowertool.com or 614-481-2111 with any questions, comments, or concerns, and be sure to follow us on all your favorite social media channels to stay in the know on all the latest announcements, deals, news, and more!