Pneumatics & Hydraulics


Boltight hydraulic bolt tightening from BMG

August 2019 Pneumatics & Hydraulics

BMG’s Nord-Lock bolting solutions now include Boltight hydraulic bolt tensioning tools, which are used to tighten bolts simultaneously, ensuring even preload in industrial applications and extreme environments, where bolt load accuracy is critical.

Advanced bolting technology in large machines and equipment eliminates the risk of loose or over-tightened bolts and is critical to ensuring optimum performance and safety on industrial sites. As bolts increase in size, so the load critically increases and operators are faced with the challenge of achieving the correct bolt elongation, to ensure bolt load accuracy.

When tightening a bolt using traditional torque methods, it can be difficult and sometimes impossible, for the operator to achieve the correct bolt elongation, due to friction.

Boltight hydraulic bolt tensioners – manufactured to stringent global quality and safety specifications – use high-pressure hydraulics and a pre-determined pressure to make on-site bolting jobs safer, faster and more efficient. These tools have been specially developed to axially stretch the bolt. The nut is then rotated down the joint face, accurately locking in the bolt load.

The Boltight operating principle is based on the flow of hydraulic oil into the loadcell. The load generated by the loadcell is transferred into the puller and the puller then transfers the load directly into the bolt. The nut lifts clear of the flange surface due to bolt stretch and the socket is used to turn the nut down, retaining the load.

Boltight hydraulic bolt tensioning equipment is suitable for use in all industries where critical bolting requires accurate and reliable tightening. In power generation, these tools are used for bolts on pipes, pumps, valves and engines.

For more information contact Lauren Holloway, BMG, +27 11 620 7597, [email protected], www.bmgworld.net



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Compressed air treatment do’s and don’ts
Artic Driers International Pneumatics & Hydraulics
As a long-established importer and manufacturer of air dryers, Artic Dryers often sees the results of poor installation and issues with aftercoolers that create serious problems in air drying systems.

Read more...
The importance of original branded bolt securing products
Bearing Man Group t/a BMG Motion Control & Drives
BMG is concerned about the proliferation of counterfeit merchandise, and the dangers associated with using inferior goods.

Read more...
Next-gen air compressors for plastics manufacturer
Pneumatics & Hydraulics
Integrated Air Solutions has reinforced its partnership with global compressor manufacturer, ABC Compressors by facilitating the installation and commissioning of two next-generation direct-drive ABC machines for a prominent plastic manufacturer in South Africa.

Read more...
Electrohydraulic shredding of galvanic waste
Pneumatics & Hydraulics
Galvanised parts are among the last big challenges for recycling. ImpulsTec is implementing shockwave or electrohydraulic shredding technology, for the separation of complex material compounds in industrial processes.

Read more...
Advanced solutions for valves
Bearing Man Group t/a BMG Valves, Actuators & Pump Control
BMG delivers state-of-the-art valve solutions to diverse industries across Africa, in collaboration with InterApp, a global leader in the design and manufacture of high-quality valves.

Read more...
A leap forward in electrohydrostatic pump technology
Customized Motion Controls Pneumatics & Hydraulics
Moog has launched the EPU-G, the latest addition to its Electrohydrostatic Pump Unit portfolio.

Read more...
Revealing the value of filtration
Hydrasales Pneumatics & Hydraulics
The life and reliability of hydraulic systems are greatly affected by the presence of particulate contamination in the lubricant. However, in the face of potential contamination there is hope. The cleaner the fluid, the more reliable the system or process, and the longer the lifespan of its components.

Read more...
Bushings for movie prop platforms
Pneumatics & Hydraulics
A provider of engineering services in the hydraulics and pneumatics industry anticipates new orders in 2025 for movie prop platforms that use Vesconite bushings with a low coefficient of friction.

Read more...
Electrically operated diaphragm pumps for caustic services
Bearing Man Group t/a BMG Motion Control & Drives
BMG’s new EVO series electric diaphragm pumps – which form part of Ingersoll Rand’s ARO fluid handling products – are designed to enhance energy efficiency and improve fluid handling productivity in many industries, including the chemical and petrochemical sectors.

Read more...
Hydraulic pumps deliver high flow, convenience and precision
Bearing Man Group t/a BMG Pneumatics & Hydraulics
BMG’s range of high-performance hydraulic electric Enerpac E-pulse pumps is critical to all 700 bar operating hydraulic systems. These portable E-pulse pumps have intelligent auto-cycle functionality and an efficient power-to-weight ratio to ensure dependable operation and high productivity in challenging industrial applications.

Read more...