Enerpac expands its series of bolt tensioners

Enerpac, a global provider of heavy lifting technology and high-pressure hydraulics, now offers the new HM-Series HydraMax and updated GT-Series Hydraulic Topside Tensioners for bolt tightening. Both product series are engineered to achieve accurate bolt-load in single or multiple tensioner configurations, delivering the most reliable bolt tensioning with extreme performance on critical joints.

“Field-proven HydraMax tensioner technology builds upon our expanded GT-Series bolt tensioners to provide the industry’s most versatile offering of hydraulic topside tensioners, covering a wide range of bolt sizes with fewer load cells, and reducing the tool inventory needs of our customers,” said Mark van Baal, Bolting Product Line Director.

The HM-Series HydraMax tensioners are designed to generate high-bolt loads associated with compact flanges, overcoming dimensional restraints with 15-load cells for bolts from 3/4-in. to 4-in. and M20 to M100 – covering all standard sizes with multiple load cell options. The HM-Series is designed to fit all standard flanges, including ANSI, API, and compact flanges based on Norsok L005, and generates 30% more load capacity than traditional tensioners.

With its compact fit and high-load generation, alongside the flexibility to work with all standard flanges, the new HydraMax tool can be used in almost every industry and in a vast number of different applications.

HydraMax HM-Series features include:

• Quick release bridge offering faster turnaround for different applications
• Long-stroke capability of 15mm (9/16-in.) reducing actuations and over-stroke conditions
• Twin ports for quick connection of multiple tools
• Mechanical over-stroke prevention or over-stroke relief valve with spring return for faster retraction and reduced cycle times
• Piston stroke indicator for operator awareness
• Anti-slip grip for more secure handling
• Captive socket to eliminate falling object risk

The GT-Series Topside Bolt Tensioners from Enerpac have also undergone an update. The GT range offers a new captive socket system that prevents the socket from falling or being separated from the tool. A new GT7 (M100-M105) tensioner has been added, expanding the series to seven GT load cells and bridges to accommodate bolts from 5/8-in. to 4-in. and M16 to M105.

Additional GT-Series features include:

• 7-load cell & bridges requiring less investment to cover all standard bolt sizes
• Detachable and rotational bridge to simplify tool positioning
• Full bridge window offering increased access to socket
• Piston stroke indicator for operator awareness to prevent tool over-stroke
• Anti-slip grip for more secure handling
• Twin ports for linking multiple tools to provide even tensioning