ZU4220JB is a model-specific Enerpac ZU4 Electric Hydraulic Pump choice for single-acting advance / retract operation. 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.
Before Specifying ZU4220JB
The ZU4 family is designed around a 1.7 hp universal motor and two-stage hydraulic output. The meaningful differences are in how each model controls and supplies the connected tool. Available oil volume is set by the 5.2 gal reservoir, so the connected equipment’s oil requirement should be verified before final selection. A 1.7 hp motor drives the pump, with rated-pressure output specified at 60 in³/min @ 10,000 psi.
Model selection becomes clearer against ZU4204JB. In that comparison, reservoir capacity is 5.2 gal on ZU4220JB versus 1.2 gal on ZU4204JB.
Remote pendant operation allows the operator to remain closer to the hydraulic work while controlling the pump.
Confirm that the connected equipment uses the single-acting circuit this model is configured to control.
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 | 5.2 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 |