For a system that requires single-acting advance / hold / retract operation, ZU4308JB is the corresponding Enerpac ZU4 Electric Hydraulic Pump configuration. The 1.8 gal reservoir sits between the smallest and largest capacities offered in this group, making oil-volume demand an important comparison point.
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. With a 1.8 gal reservoir, this version occupies a specific capacity point within the series; reservoir sizing should follow the oil demand of the full circuit. At rated pressure, Enerpac specifies 60 in³/min @ 10,000 psi from the 1.7 hp motor package.
Valve, Reservoir and Power Fit for ZU4308JB
If the shortlist includes ZU4308MB, focus on the configuration change: pendant control is Yes on ZU4308JB versus No on ZU4308MB. The remaining shared family characteristics should not obscure that difference.
Check the hydraulic system's total oil demand against the 1.8 gal reservoir before final selection.
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 | 1.8 gal |
| Valve Model | VM33 |
| Valve Configuration | 3-way, 3-position manual valve |
| Valve Operation | Manual |
| Cylinder Compatibility | Single-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |