Bolt tensioner Product List and Ranking from 4 Manufacturers, Suppliers and Companies

Bolt tensioner Product List

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Bolt tensioner for underwater bolt tightening, SUBSEA type

Bolt tensioner for underwater bolt tightening, SUBSEA type

Large bolt tightening tool for underwater and in-water use. It can be easily attached even underwater, significantly reducing bolt tightening work time! Compatible with sizes M20 to M100.

■ The sub-sea type bolt tensioner features a split puller nut that clamps the bolt, allowing for easy installation even in underwater bolt tightening with long protrusions, significantly reducing the time required for bolt tightening work! (Especially effective for long anchor bolts and foundation bolt tightening.) ■ It shortens the diver's working time for challenging large bolt tightening tasks underwater. ■ Designed with nickel plating to prevent rust. ■ Multiple bolts can be tightened simultaneously (parallel tightening) by connecting tensioners. ■ Hydraulic specification of 150 MPa, with a maximum pull stroke of 30 mm per operation. ■ It also excels in applications other than underwater bolt tightening, particularly for long bolt tightening tasks.

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Bolt tensioner

Bolt tensioner

In addition to "Standard," we also offer options such as "for Wind Turbines" and "for Underwater Operations"!

At Tortech Co., Ltd., we offer "bolt tensioners" tailored to meet our customers' needs for efficient axial force management tools. The "Standard" model is compact and highly reliable, featuring safety through "over-stroke" and a link-hose system. In addition, we provide options such as the "wind turbine model," which allows for connections with many tensioners through an optional 360-degree swivel connection, as well as models for "subsea operations" and "wind turbine foundation bolts." 【Standard Features】 ■ Compact and highly reliable ■ Safety through "over-stroke" ■ Link-hose system *For more details, please refer to the PDF document or feel free to contact us.

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Super Bolt with Railway Vehicle Adoption Examples

Super Bolt with Railway Vehicle Adoption Examples

A single torque wrench can handle large diameter fastening of M30 and above! Mechanical bolt tensioner.

The "Super Bolt" is a mechanical bolt tensioner. It allows for the tightening of large diameter bolts using standard tools alone, achieving the desired axial force with astonishing precision. Thanks to its patented structure, it does not loosen even under intense vibrations. Sizes are available starting from M16, and other sizes can also be accommodated. 【Features】 ■ Can tighten large bolts using standard tools alone ■ Does not loosen even under intense vibrations ■ Size: Starting from M16 *For more details, please refer to the PDF document or feel free to contact us.

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Bolt tensioner (axial force management tool) | Japan Pralard

Bolt tensioner (axial force management tool) | Japan Pralard

High-precision axial force management tool for large bolts M20 to M300. Allows simultaneous parallel tightening of bolts, ensuring uniform tightening without variation in axial force!

- Compatible with large bolt tightening from M20 to M300. (Custom manufacturing possible from M16.) - Multiple bolts can be tightened simultaneously and uniformly in parallel by connecting bolt tensioners. The tightening axial force is uniform, preventing uneven tightening of flanges. (Proven capability of tightening 40 flange bolts simultaneously in parallel.) - The bolts are pulled hydraulically, applying tensile load for tightening, which eliminates the influence of friction between the thread surface and the seating surface. "Axial force can be managed directly," allowing for more accurate axial force management compared to torque management. - A standard model of bolt tensioner that has been compacted and lightweight to the extreme. It can be used for bolt tightening even in narrow spaces. Custom manufacturing is also available. - It is a puller exchange type, allowing one main unit to accommodate multiple bolt sizes, providing high versatility. - Since the bolts are not twisted, friction heat does not occur, preventing galling between the nut and flange surface and seizing of the threaded parts. <Contact for purchasing or renting bolt tensioners> Please contact us for free demos, quotes, and material requests. Nihon Purarado Co., Ltd. TEL: 078-967-3556

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[Technical Information] The Mechanism of Super Bolts and the Principle of Preventing Breakage

[Technical Information] The Mechanism of Super Bolts and the Principle of Preventing Breakage

A bolt tensioner that can be tightened using only hand tools! A bolt that ensures reliable axial force.

This document introduces the reduction of breakage risk for Super Bolts. It explains the causes of breakage in large diameter bolts, and then provides a detailed explanation of the axial force generation process of Super Bolts and the absence of torsional stress. Our company has a dedicated support department. Please make use of it for product selection. [Contents] ■ What is a Super Bolt ■ Main causes of breakage in large diameter bolts ■ Reducing breakage risk with Super Bolts ■ Summary *For more details, please refer to the PDF document or feel free to contact us.

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