Enerpac ZUTP electric hydraulic bolt tensioning pumps provide ultra-high-pressure hydraulic power for industrial bolt tensioners. Designed specifically for tensioning applications, the ZUTP Series operates at pressures up to 21,750 psi (1500 bar) without requiring a separate pressure intensifier.
Ultra-High-Pressure Pumps for Hydraulic Bolt Tensioning
ZUTP pumps use a two-speed hydraulic design that provides high oil flow for rapidly filling the tensioning system, then lower controlled flow as pressure increases. This combination helps reduce setup and pressurization time while providing the pressure required for precision hydraulic bolt tensioning.
- Maximum operating pressure: 21,750 psi (1500 bar).
- Usable oil capacity: approximately 1.0 gallon.
- Oil flow at zero pressure: approximately 230 in³/min.
- Oil flow at rated pressure: approximately 20 in³/min at 21,750 psi.
- Motor: 1.7 hp electric motor.
- Power options: 115V and 230V single-phase configurations.
- Pump design: two-speed operation without a separate pressure intensifier.
Choosing a ZUTP Bolt Tensioning Pump
The ZUTP1500B, ZUTP1500E and ZUTP1500I share the same core hydraulic performance but use different electrical and plug configurations. Select the model that matches the power supply and electrical connection available at the job site.
Hydraulic Bolt Tensioning vs. Torque Wrench Pumps
ZUTP pumps are designed for hydraulic bolt tensioners operating at ultra-high pressure. They should not be confused with 10,000 psi hydraulic torque wrench pumps. For controlled torque-wrench bolting applications, see Enerpac TQ-700 electric hydraulic torque wrench pumps.
For additional electric pump families and pressure ranges, browse all Enerpac electric hydraulic pumps.
