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ZU4 Series Portable Electric Pumps

The ZU4 series electro-hydraulic torque wrench pumps utilize Enerpac's market-leading Class Z hydraulic technology. Compared to similar pumps, this technology offers higher flow rates and bypass pressures, lower operating temperatures, and 18% lower current consumption. The ZU4 series includes two models: "Classic" and "Professional." The ZU4 Classic uses analog pressure gauges and traditional electromechanical components (transformers, relays, and switches) instead of solid-state electronics. The Classic model provides reliable, safe, and efficient hydraulic power. The Professional model features a digital (LCD) display with a built-in hour meter that shows pressure, torque, diagnostic information, cycle count, and low voltage warnings. It also includes an automatic cycling function for continuous cyclic operation of the torque wrench. The pump can be used independently or with the automatic cycling function enabled or disabled.

product description

Product line: Electric hydraulic pumps

  • All ZU4 torque pump models
    • It adopts a Class Z high-efficiency pump design, which has higher oil flow and bypass pressure, lower operating temperature, and 18% lower current consumption than similar pumps.
    • This powerful 1.7 hp general-purpose electric motor features a high power-to-weight ratio and excellent low-voltage operation characteristics.
    • The high-strength molded composite material casing protects the motor and electrical components, while providing an ergonomic, non-conductive handle for easy handling.
    • Low-pressure pendants provide additional safety for operators.
    • Pressure relief valve adjustment range: 1800 – 10,000 psi
  • Professional Series Only
    • The LCD display provides pressure and torque readings, as well as unprecedented diagnostic and reading capabilities for portable electric pumps.
    • Simply press the forward button, and the automatic cycle function will keep the torque wrench running in a continuous cycle. The pump can be used with or without the automatic cycle function.

Think safe

The manufacturer's load and stroke ratings are maximum safe limits. Good practice encourages using only 80% of these ratings!

Product Samples

product specifications

Oil capacity:4.6-40L
Pump Type:Single-effect/Dual-effect, Dual-speed
Maximum working pressure:700Bar
Weight:27-79Kg

ZE Series Pump Ordering Guide

Product Categories

ZU4 Series Portable Electric Pumps

The ZU4 series electro-hydraulic torque wrench pumps utilize Enerpac's market-leading Class Z hydraulic technology. Compared to similar pumps, this technology offers higher flow rates and bypass pressures, lower operating temperatures, and 18% lower current consumption. The ZU4 series includes two models: "Classic" and "Professional." The ZU4 Classic uses analog pressure gauges and traditional electromechanical components (transformers, relays, and switches) instead of solid-state electronics. The Classic model provides reliable, safe, and efficient hydraulic power. The Professional model features a digital (LCD) display with a built-in hour meter that shows pressure, torque, diagnostic information, cycle count, and low voltage warnings. It also includes an automatic cycling function for continuous cyclic operation of the torque wrench. The pump can be used independently or with the automatic cycling function enabled or disabled.

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Product Inquiry

product description

Product line: Electric hydraulic pumps

  • All ZU4 torque pump models
    • It adopts a Class Z high-efficiency pump design, which has higher oil flow and bypass pressure, lower operating temperature, and 18% lower current consumption than similar pumps.
    • This powerful 1.7 hp general-purpose electric motor features a high power-to-weight ratio and excellent low-voltage operation characteristics.
    • The high-strength molded composite material casing protects the motor and electrical components, while providing an ergonomic, non-conductive handle for easy handling.
    • Low-pressure pendants provide additional safety for operators.
    • Pressure relief valve adjustment range: 1800 – 10,000 psi
  • Professional Series Only
    • The LCD display provides pressure and torque readings, as well as unprecedented diagnostic and reading capabilities for portable electric pumps.
    • Simply press the forward button, and the automatic cycle function will keep the torque wrench running in a continuous cycle. The pump can be used with or without the automatic cycle function.

Think safe

The manufacturer's load and stroke ratings are maximum safe limits. Good practice encourages using only 80% of these ratings!

Product Samples

product specifications

Oil capacity:4.6-40L
Pump Type:Single-effect/Dual-effect, Dual-speed
Maximum working pressure:700Bar
Weight:27-79Kg

ZE Series Pump Ordering Guide