23 May, 2022

Hydrocam hydraulic bolt tensioners remove uncertainty from couplings

11 September, 2020

Hydrocam hydraulically operated bolt tensioners are designed to offer far greater accuracy compared with alternative fixing methods. The bolt tensioners can reportedly remove uncertainty over the performance and long-term reliability of couplings. They can also save time and reduce risks, offering a high level of control and safety.

According to Hydrocam manufacturer Pilgrim, part of the SKF Group, damage to bolts and associated structures is avoided, installation is faster, operation of equipment is optimized and maintenance needs are minimised.

Bolted assemblies are used throughout industry but can present significant challenges. For example, incorrect assembly accounts for around 45% of all fatigue failures, with common problems being insufficient preload, over- or undertightening and misalignment.

“Conventional methods for tightening bolts use torque, applied by hand or torque tools,” explains Damian Lewis, general manager at Pilgrim. “These methods can damage threads and flange faces, leading to re-machining and added downtime. The bolts may also become loose over time and need re-tightening.

An alternative is heat induction, but this requires specialist contractors and additional cost.”

Hydrocam can overcome these problems by axially stretching bolts and studs, using a pre-determined residual load to create a high integrity fixing, which can be mounted and dismounted quickly and safely without damage. Hydrocam can be supplied as a single tool or incorporated into a multitensioner for homogenous tightening; in most applications it is intended to be reused with multiple fittings but can also be permanently incorporated into the nut assembly.

Hydrocam is supplied ready for use with the tensioner unit, power pack and all relevant fittings. The power pack can be hydraulically, electrically or hand operated.

Lewis concludes, “Hydrocam ensures consistent, safe and precise bolt assembly and fastening. It’s simple to use, eliminates the risk of errors and saves engineers throughout industry considerable time, effort, and cost.

Buyers' Guide Search
Search for UK supplier by name
Browse by Product Group.
APRIL/MAY 2022 Issue To view a digital copy of the APRIL/MAY 2022 issue of Hydraulics & Pneumatics Magazine, click here.

MARCH 2022 IssueTo view a digital copy of the MARCH 2022 edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

July/August 2021 Annual Buyers' GuideTo view a digital copy of the JULY/AUGUST edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

BFPA YearbookTo read the latest BFPA Yearbook, click here
Talking Industry events in 2021Talking Industry Events in 2021
BFPA Training AcademyClick the image to go to the BFPA Training Academy website
Compressed Air & Vacuum Technology Guide 2018To read the official BCAS Compressed Air & Vacuum Technology Guide 2018 click here
Offshore Europe JournalOEE
Super Swivels
Impulse Automation Limited was established in 1960 and is based in the United Kingdom. We are an importer and distributor of mechatronic components used in a wide variety of industry sectors.Impulse Automation Limited
Hy-Pro FiltrationWEB LOCATOR