The selection case for ZU4204JB starts with single-acting advance / retract operation. This Enerpac ZU4 Electric Hydraulic Pump is one specific hydraulic and electrical arrangement within the broader family. The valve behavior is intentionally simple: advance the single-acting tool, then release pressure for return. Applications that need a hydraulic hold step should use a hold-capable configuration instead.
ZU4204MB is a natural cross-check during selection. Relative to that model, pendant control is Yes on ZU4204JB versus No on ZU4204MB. This is the model-level change that should be confirmed before ordering.
Enerpac’s ZU4 platform uses the Z-Class two-stage pump design with a universal electric motor, combining high-pressure capability with higher low-pressure flow. The 1.2 gal reservoir determines how much oil is available to the connected hydraulic circuit and should be checked against total cylinder or tool volume. A 1.7 hp motor drives the pump, with rated-pressure output specified at 60 in³/min @ 10,000 psi.
Confirm that the connected equipment uses the single-acting circuit this model is configured to control.
Remote pendant operation allows the operator to remain closer to the hydraulic work while controlling the pump.
Specifications
| Pump Series | ZU4 Series |
|---|---|
| Power Source | Electric |
| Maximum Operating Pressure | 10,000 psi |
| Rated Oil Flow | 60 in³/min @ 10,000 psi |
| Reservoir Capacity | 1.2 gal |
| Valve Model | VM32 |
| Valve Configuration | 3-way, 2-position manual valve |
| Valve Operation | Manual |
| Cylinder Compatibility | Single-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |