The selection case for ZU4408MB starts with double-acting advance / hold / retract operation. This Enerpac ZU4 Electric Hydraulic Pump is one specific hydraulic and electrical arrangement within the broader family. 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 adjacent model ZU4408JB helps clarify the choice. pendant control is No on ZU4408MB versus Yes on ZU4408JB; that is the key separation between these two otherwise related pumps.
Enerpac configures ZU4 pumps for several hydraulic tasks, including standard cylinder operation and torque-wrench service. The valve and control package identify the intended use. The 1.8 gal reservoir determines how much oil is available to the connected hydraulic circuit and should be checked against total cylinder or tool volume. At rated pressure, Enerpac specifies 60 in³/min @ 10,000 psi from the 1.7 hp motor package.
Check the hydraulic system's total oil demand against the 1.8 gal reservoir before final selection.
This is a local-control configuration; the operator changes hydraulic direction at the pump valve.
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 | VM43 |
| Valve Configuration | 4-way, 3-position manual valve |
| Valve Operation | Manual |
| Cylinder Compatibility | Double-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |