Bolt tensioner (axial force management tool) | Japan Pralard
Bolt tensioner puller replacement type - Japan Plarad
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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basic information
The bolt tensioner (hydraulic tensioner) pulls and tightens bolts using hydraulic pressure, preventing damage to the surface of the flange and the seating surface of the nut. Additionally, tightening through axial force management eliminates the influence of friction, achieving higher precision tightening compared to torque management. Since it is a puller exchange type, it can accommodate various bolt sizes with a single load cell, making it highly versatile. This system is optimal for managing the axial force of large bolt tightening. By using multiple units, large bolts can be tightened simultaneously and uniformly (for example, tightening 20 flange bolts at once). We will manufacture it with optimal customization according to your application.
Price information
Both purchase and rental options are available. Since it varies by model, please feel free to contact us.
Delivery Time
※For rentals, immediate delivery. For sales, approximately 40 days. Please feel free to contact us.
Applications/Examples of results
Plarado Bolt Tensioner ■ Bolt tightening achievements in the construction of Tokyo Skytree. ■ Bolt tightening achievements in the assembly of the world's largest shield machine. ■ Cable band bolt replacement work on the Kanmon Bridge. ■ Construction of Germany's first offshore wind power generation project, 5.0MW. - Wind power plants, thermal power plants, hydroelectric power plants, nuclear power plants, etc. - Gas turbines - High-pressure injection molding machines - Marine diesel engine covers. - Flange bolt tightening. - Assembly and installation of shield machines. - Rolling mills - Work in areas where reaction cannot be obtained. - Bolt tightening locations that are narrow and where tightening tools cannot fit.
Line up（19）
| Model number | overview |
|---|---|
| Bolt Tensioner BE-HTS10-M20 | For bolt diameter M20, maximum tightening axial force 228kN |
| Bolt Tensioner BE-HTS10-M22 | For bolt diameter M22, maximum tightening axial force 228kN |
| Bolt Tensioner BE-HTS10-M24 | For bolt diameter M24, maximum tightening axial force 228kN |
| Bolt Tensioner BE-HTS10-M27 | For bolt diameter M27, maximum tightening axial force 228kN |
| Bolt Tensioner BE-HTS20-M33 | For bolt diameter M33, maximum tightening axial force 443kN |
| Bolt Tensioner BE-HTS20-M36 | For bolt diameter M36, maximum tightening axial force 443kN |
| Bolt Tensioner BE-HTS20-M39 | For bolt diameter M39, maximum tightening axial force 443kN |
| Bolt Tensioner BE-HTS30-M42 | For bolt diameter M42, maximum tightening axial force 811kN |
| Bolt Tensioner BE-HTS30-M45 | For bolt diameter M45, maximum tightening axial force 811kN |
| Bolt Tensioner BE-HTS30-M48 | For bolt diameter M48, maximum tightening axial force 811kN |
| Bolt Tensioner BE-HTS30-M52 | For bolt diameter M52, maximum tightening axial force 811kN |
| Bolt Tensioner BE-HTS40-M56 | For bolt diameter M56, maximum tightening axial force 1273kN |
| Bolt Tensioner BE-HTS50-M64 | For bolt diameter M64, maximum tightening axial force 1829kN |
| Bolt Tensioner BE-HTS50-M72 | For bolt diameter M72, maximum tightening axial force 1829kN |
| Bolt Tensioner BE-HTS50-M76 | For bolt diameter M76, maximum tightening axial force 1829kN |
| Bolt Tensioner BE-HTS60-M80 | For bolt diameter M80, maximum tightening axial force 2644kN |
| Bolt Tensioner BE-HTS60-M90 | For bolt diameter M90, maximum tightening axial force 2644kN |
| Bolt Tensioner BE-HTS70-M95 | For bolt diameter M95, maximum tightening axial force 3600kN |
| Bolt Tensioner BE-HTS70-M100 | For bolt diameter M100, maximum tightening axial force 3600kN |
catalog（4）
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Company information
Plarad is a specialized manufacturer of hydraulic torque wrenches, boasting the oldest history and tradition in the world (since 1962). The design and manufacturing of all hydraulic torque wrenches began with Plarad. As a pioneer, it has developed many patented technologies and high-precision hydraulic torque wrenches, electric torque wrenches, air torque wrenches, and bolt tensioners specifically for large bolt tightening, which are used in various industrial sectors worldwide. It offers a lineup of tools ranging from 50 Nm to one of the largest tightening torques in the world at 500,000 Nm. - Awarded the Germany TOP 100 Innovators Award. - As a leading company in hydraulic torque wrenches and bolt tensioners, it supplies hydraulic tools for large bolt fastening systems capable of torque management and axial force management to Japan and the world. - Engaged in manufacturing, sales, and rental business. - Plarad hydraulic torque wrenches have numerous delivery records, including the Tokyo Skytree, Abeno Harukas, the world's largest shield machine, the world's largest wind turbine at 8.0 MW, the world's longest high-speed tunnel, the linear Shinkansen, Boeing 787, and JAXA Tanegashima Space Center. - Certified with international standards ISO 9001 and ISO 14001.