Enerpac hydraulic torque wrench pumps provide the controlled hydraulic power required to operate high-pressure hydraulic torque wrenches in industrial bolting applications. The range includes electric, air-powered and cordless pump configurations, giving crews several options depending on available power, portability requirements and the amount of bolting work being performed.
Choosing the right torque wrench pump involves more than matching pressure. Pump series, oil flow, usable oil capacity, control type and power source can all affect productivity on the job. BuyEnerpac.com carries torque-wrench-specific pumps from the Enerpac LU, TQ-700, ZU4, ZE, ZA4, LAT and XC2T families.
Enerpac Torque Wrench Pumps by Power Source
Electric Hydraulic Torque Wrench Pumps
Electric torque wrench pumps are a practical choice for shop, plant and field applications where electrical power is readily available. Enerpac offers several electric pump families configured specifically for hydraulic bolting, ranging from compact portable pumps to larger systems intended for more demanding operating cycles.
Electric torque wrench pump options in this collection include the LU Series, TQ-700 Series, selected ZU4 Series configurations and selected ZE Series torque-wrench pumps.
Air Hydraulic Torque Wrench Pumps
Air-powered torque wrench pumps use a compressed-air supply to generate hydraulic pressure. They are commonly considered where plant air is available or where an electrically powered pump is not the preferred option.
Enerpac air torque-wrench pump options include dedicated ZA4 torque configurations and compact LAT Series pumps. The ZA4 family offers higher-capacity air-driven options, while LAT pumps provide a more compact solution for bolting work where portability and access are important.
See the broader Enerpac air hydraulic pump range for additional air-powered hydraulic applications.
Cordless Hydraulic Torque Wrench Pumps
Enerpac XC2T cordless torque wrench pumps provide battery-powered hydraulic operation without requiring an electrical cord or compressed-air line. This makes them useful for field bolting, maintenance work and locations where access to conventional power sources is limited.
XC2T models combine a rechargeable battery power source with pendant-controlled hydraulic operation and are available with different usable oil capacities. They are distinct from general-purpose XC2 battery pumps because the XC2T configurations are designed specifically for hydraulic torque-wrench applications.
Enerpac Torque Wrench Pump Series
TQ-700 Series Torque Wrench Pumps
The Enerpac TQ-700 Series is a dedicated electric hydraulic torque wrench pump family designed for bolting applications. TQ-700 pumps combine portable electric operation with pendant control and are available in electrical configurations for different supply requirements.
TQ-700 pumps are designed for use with compatible Enerpac hydraulic torque wrenches and provide hydraulic output up to 10,000 psi.
LU Series Electric Torque Wrench Pumps
The Enerpac LU Series is a lightweight electric torque pump family intended for portable bolting work and intermittent torque-wrench applications.
LU pumps are a strong option where transport weight and compact size matter. Available models provide 10,000 psi hydraulic output and pendant-controlled operation in different electrical configurations.
ZU4 Torque Wrench Pumps
Selected Enerpac ZU4 Series pumps are equipped with torque-wrench-specific valve and control configurations. These should not be confused with general-purpose ZU4 pumps used for cylinders and other hydraulic tools.
ZU4 torque pumps are available in Classic and Pro configurations, with differences in controls, reservoir capacity and electrical setup depending on the model. When comparing ZU4 pumps, make sure the specific model is identified by Enerpac as a hydraulic torque wrench configuration.
ZE Torque Wrench Pumps
Enerpac also offers selected ZE Series electric pumps configured specifically for hydraulic torque wrenches. ZE torque configurations provide another option for demanding electric-powered bolting applications and are available in different flow groups, reservoir sizes and electrical configurations.
As with the ZU4 range, not every ZE pump is a torque-wrench pump. The products included on this page are the configurations intended for hydraulic bolting service.
ZA4 Air Torque Wrench Pumps
Enerpac ZA4 torque-wrench pumps provide air-powered hydraulic operation for industrial bolting. These two-speed pumps are available with different reservoir capacities and torque-wrench valve configurations.
ZA4 torque models are part of the broader Enerpac ZA4 air pump family, but only the configurations designed for hydraulic torque wrenches are included in this collection.
LAT Series Air Torque Wrench Pumps
Enerpac LAT Series pumps provide a compact air-powered option for hydraulic torque-wrench applications. Their smaller format can be useful for bolting work where access, portability or equipment weight is a consideration.
XC2T Cordless Torque Wrench Pumps
Enerpac XC2T pumps are cordless hydraulic torque-wrench pumps powered by a 54V battery system. They provide a portable alternative to electric and pneumatic torque pumps and are available with multiple usable oil capacities.
The XC2T range is particularly useful when bolting work must be performed away from a convenient electrical supply or compressed-air source.
How to Choose a Hydraulic Torque Wrench Pump
Start with the hydraulic torque wrench the pump will operate. The pump, hose and wrench must be compatible as a complete hydraulic bolting system. Once compatibility is established, compare power source, oil flow, reservoir capacity, controls and electrical or air-supply requirements.
Power Source
Electric pumps are well suited to locations with dependable electrical power and are available in several performance and control configurations.
Air pumps are a practical choice where compressed air is readily available and pneumatic operation is preferred.
Cordless pumps eliminate the electrical cord and air line, making them particularly useful for mobile and remote bolting work.
Oil Flow
Oil flow influences how quickly the torque wrench cycles. Higher hydraulic flow can reduce cycle time, but the amount of flow required depends on the wrench, pump design and work being performed.
When productivity is important, compare the pump's rated oil flow at working pressure rather than relying only on a free-flow specification.
Usable Oil Capacity
Torque wrench pumps are available with different reservoir and usable oil capacities. Compact reservoirs help reduce pump size and weight, while larger reservoirs may be better suited to applications that require more hydraulic oil or longer operating periods.
Use usable oil capacity when comparing models because it represents the hydraulic oil available to the system.
Controls and Pendant Operation
Many Enerpac hydraulic torque wrench pumps use pendant controls so the operator can control the hydraulic cycle while positioned at the bolting location. Control features vary by pump family and model, particularly across the ZU4 and ZE product ranges.
Review the individual pump specifications if the application requires specific control functions, displays or automatic cycling features.
Voltage and Power Requirements
Electric torque wrench pumps are available in different voltage and electrical configurations. Confirm the available power supply before selecting a pump. For air-powered models, verify that the compressed-air system can provide the pressure and flow required by the pump.
Battery-powered XC2T pumps remove those external supply requirements but still require the appropriate battery and charging setup.
Hydraulic Torque Wrench Pumps vs. Bolt Tensioning Pumps
Hydraulic torque-wrench pumps and hydraulic bolt-tensioning pumps perform different bolting functions and should not be treated as interchangeable equipment.
Torque wrench pumps power hydraulic torque wrenches that apply rotational force to a fastener. Bolt tensioning systems hydraulically stretch the fastener so the nut can be positioned while the bolt is under tension. Tensioning equipment can also operate at significantly higher hydraulic pressures.
For bolt tensioning applications, see the Enerpac ZUTP Series hydraulic tensioning pumps.
Complete Hydraulic Bolting Systems
A torque pump is one part of the hydraulic bolting system. The pump must be matched with a compatible hydraulic torque wrench, properly rated hose and the correct connections for the application.
Browse Enerpac hydraulic torque wrenches to compare square-drive, low-profile and other hydraulic bolting tools. For other hydraulic power applications, return to the main Enerpac hydraulic pumps collection.
Enerpac Hydraulic Torque Wrench Pump FAQs
What pressure do Enerpac hydraulic torque wrench pumps operate at?
Enerpac hydraulic torque wrench pumps are available with different maximum operating pressures depending on the pump series and configuration. Many models operate up to 10,000 psi, while certain specialized models are rated higher. Always verify the maximum pressure and compatibility of the exact pump and torque wrench before connecting the system.
Can I use a regular hydraulic pump with an Enerpac torque wrench?
Do not assume that a general-purpose hydraulic pump is suitable for a torque wrench simply because it can produce the required pressure. Torque-wrench pumps use valve and control configurations designed for hydraulic bolting. Use a pump Enerpac identifies as compatible with the wrench and application.
Which Enerpac torque wrench pump is the most portable?
The answer depends on the available power source and application. LU Series electric pumps are designed as lightweight portable electric torque pumps, LAT models provide compact air-powered operation, and XC2T pumps provide cordless mobility without an electrical cord or air hose.
What is the difference between TQ-700 and ZU4 torque pumps?
TQ-700 is a dedicated electric torque-wrench pump family. ZU4 is a broader electric hydraulic pump platform that includes certain configurations specifically equipped for torque-wrench operation. Compare flow, controls, electrical supply and reservoir capacity when choosing between them.
Are all ZU4 and ZE pumps torque wrench pumps?
No. Both ZU4 and ZE product families include pumps designed for other hydraulic applications. Only the models equipped and identified for hydraulic torque-wrench service should be used as torque-wrench pump configurations.
Should I choose an electric, air or cordless torque wrench pump?
Choose based primarily on the power available at the work location and how the equipment will be used. Electric pumps work well where suitable electrical power is available, air pumps fit facilities with an adequate compressed-air supply, and cordless pumps provide the greatest independence from external power sources.
