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Tensioner Product List and Ranking from 12 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

Tensioner Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

  1. ノルトロックジャパン Osaka//Ferrous/Non-ferrous metals
  2. エナパック 本社　営業部 Saitama//Machine elements and parts
  3. 日本プララド Hyogo//Industrial Machinery
  4. 4 マツダ金属製作所 Osaka//Building materials, supplies and fixtures
  5. 5 三木プーリ Kanagawa//Machine elements and parts
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Tensioner Product ranking

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

  1. Super Bolt GT Series ノルトロックジャパン
  2. "Super Bolt": Tightening large-diameter bolts with a single torque wrench. ノルトロックジャパン
  3. Hydraulic Bolt Tensioner "HM Series" エナパック 本社　営業部
  4. Stairs, balcony, wire handrail, rope tensioner マツダ金属製作所
  5. 4 Rubber spring lost "tensioner" 三木プーリ

Tensioner Product List

1～15 item / All 29 items

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Bolt tensioner for underwater bolt tightening, SUBSEA type

Bolt tensioner for underwater bolt tightening, SUBSEA type

Large underwater bolt tightening tool. 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 reduces diver's working time for challenging large bolt tightening tasks underwater. ■ Nickel-plated coating 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 is also highly effective for bolt tightening tasks with long protrusions, beyond underwater bolt tightening work.

  • Other work tools
  • Torque wrench
  • Hydraulic Equipment

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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 a range of "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 "for wind turbines," which allows for connections with many tensioners through an optional 360-degree rotating swivel connection, as well as models for "underwater work" 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.

  • Other work tools

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Standard Bolt Tensioner 'CTST'

Standard Bolt Tensioner 'CTST'

Compatible with M20 to M100 in 6 types! It consists only of a plunger, load cell, and bridge.

The "CTST" is a simple structure bolt tensioner that allows for easy maintenance, including seal replacement, to be performed by the user. It is a bolt tensioner that enables advanced axial force management by pulling the bolt up with high-pressure hydraulics and tightening the nut in the meantime. This model is particularly simple, consisting only of a plunger, load cell, and bridge. By combining six types of load cells with various plungers and bridges, it accommodates a wide range of sizes. 【Features】 ■ Lightweight and simple ■ Self-maintenance is possible ■ Compatible with M20 to M100 in six types *For more details, please refer to the PDF document or feel free to contact us.

  • Other work tools

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Wind Turbine Dedicated Bolt Tensioner 'WTB'

Wind Turbine Dedicated Bolt Tensioner 'WTB'

Recommended for areas with narrow bolt pitch! Slim body integrated bolt tensioner.

The "WTB" is a bolt tensioner designed to work efficiently within the limited workspace of a wind turbine. It is an integrated unit with no separate parts. The lower part is tapered in a circular shape, minimizing interference with neighboring components even in wind turbines with narrow bolt pitches. It has been adopted as a designated tool by many companies, including the Spanish company Gamesa, and its quality and track record are well-established. 【Features (partial)】 ■ Safety Plunger Bar - Structural measures are in place to prevent the main body from being ejected in the event of plunger bar breakage. ■ Snap Down Disk - Automatically assists in attaching to nuts, allowing for smooth setup. ■ 360° Swivel Joint - Makes hose connection and handling easy, preventing obstruction even in tight spaces. *For more details, please refer to the PDF document or feel free to contact us.

  • Other work tools

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Hydraulic Bolt Tensioner "HM Series"

Hydraulic Bolt Tensioner "HM Series"

Lightweight and compact! It demonstrates high bolt load capacity and excellent performance.

The "HM Series" is designed to fit all standard flanges and features a hydraulic bolt tensioner with a 30% increase in load capacity compared to conventional models. It has a long stroke of 15mm (9/16 inch), eliminating over-stroking. Additionally, the safety of handling is improved with a non-slip grip, and we also offer the "GT Series," which is suitable for a wider range of tasks. 【Features】 <HM Series> ■ 15 types of load cells from M20 to M100 or 3/4" to 4" ■ Twin ports for quick connection of multiple tools ■ Maximum bolt load capacity of 150MPa ■ Captive socket eliminates the risk of falling objects ■ Interchangeable adapter kits available ■ Improved handling safety with a non-slip grip *For more details, please refer to the PDF document or feel free to contact us.

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  • Other machine elements

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Wire railing products

Wire railing products

Blend into the space without obstructing your view! Achieving a simple shape and compact design.

We handle "wire railing products." The tensioners boast a high-quality texture and excellent design, featuring a simple and easy-to-handle compact design that combines functionality and safety. With excellent workability that allows for easy installation by one person, it protects the boundary between homes, buildings, and their environments without breaking them, preserving them in their natural state. The structure prevents slack with a tension spring, allowing for various installations on horizontal, sloped, and wall surfaces. 【Features (excerpt)】 ■ High-quality texture with reduced gloss ■ Easy installation using only a dedicated wrench and a 5mm hex key ■ Can be installed up to a maximum length of 6m ■ Tension adjustment is simple ■ No variation in strength regardless of who performs the installation *For more details, please refer to the PDF document or feel free to contact us.

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Stairs, balcony, wire handrail, tough tensioner

Stairs, balcony, wire handrail, tough tensioner

Blending into the space: Simple & Compact.

The new tough tensioner, which does not obstruct the field of vision and makes the space feel larger, is designed with a high-quality texture and excellent design, and it is unparalleled in terms of functionality and safety.

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Wood Installation Dedicated Tensioner "Wood Tensioner"

Wood Installation Dedicated Tensioner "Wood Tensioner"

We aimed to ensure that our design does not interfere with the creator's space-making (that the hardware is inconspicuous).

The "Wood Tensioner" is a dedicated tensioner for wood installation that can be embedded into the wood at both ends, allowing it to be unobtrusive and creating a sense of even more space compared to conventional products. The main fittings are primarily made of SUS304, and the wire is made of SUS316, taking into account texture and rust prevention. 【Features】 ■ Design with embedded main fittings ■ The fittings not protruding contribute significantly to both aesthetics and safety ■ Wire can be cut and adjusted on-site ■ Easy installation by one person *For more details, please download the PDF or feel free to contact us.

  • Other metal materials

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Rubber spring lost "tensioner"

Rubber spring lost "tensioner"

Prevention of belt and chain slack; automatic maintenance of proper tension.

By attaching an arm to the suspension unit and setting rollers or sprockets, it can be used for auto-tensioning, pressure rollers, and dampers. The outer shell has a flange shape, allowing for easy installation with a single center bolt. Additionally, you can select the mounting holes for the idler based on the load range, accommodating a wide range of loads. - SE model without idler - RSE model with roller idler set belt tensioner. - NSE model with sprocket idler set is also available. 【Features】 - Automatically maintains the proper tension of belts and chains, contributing to the efficiency of power transmission and longevity. - Reduces vibrations, impacts, and abnormal noises caused by flutter due to the elongation of belts and chains. For more details, please contact us or download the catalog.

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"Voltite" Evolutionary Bolt Tensioner

"Voltite" Evolutionary Bolt Tensioner

An evolved hydraulic tensioner that overcomes the challenges of conventional tensioners, such as "too heavy," "does not fit in narrow spaces," and "oil leaks with repeated use."

The hydraulic bolt tensioner "Boltight," a member of the Nord-Lock Group, was born as an evolved version re-invented by the engineer Fred Heaton, who originally developed the tensioner, to address the challenges faced by the tensioner itself. These challenges include common disadvantages of hydraulic tools like tensioners, such as being "too heavy and difficult to work with," "leaking oil after repeated use," and "not being able to be installed in tight spaces." All of Boltight's tensioners have been significantly lightened to the extreme, utilizing in-house developed bridges and seals to reduce the weight of the tensioner. Additionally, the durability for repeated use has greatly improved through technologies such as in-house developed seals. Furthermore, we can flexibly customize the shape and size for areas where space constraints prevent standard applications, delivering them with the same lead time as standard products.

  • Torque wrench
  • Hydraulic Equipment
  • Other work tools

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Super Bolt with Railway Vehicle Adoption Examples

Super Bolt with Railway Vehicle Adoption Examples

One 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.

  • bolt
  • Other metal materials

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Points to consider when using a storage tensor.

Points to consider when using a storage tensor.

Choose specifications that match the desired tension! It is also possible to change the direction of the eyelet guide installation.

Here are some points to consider when using the "Storage Tensioner," which achieves stable tension through arm movement. By changing specifications such as the difference in total length, reducing the number of bars to alter the bending angle, or adjusting the thickness of the built-in spring's linearity, it is possible to change the tension. By modifying specifications or changing the wire diameter of the spring, you can achieve the tension that suits your company. Additionally, the eyelet guide through which the thread passes is made of ceramic, and you can choose the surface treatment between standard and mirror finish. For example, a mirror finish can reduce friction for twisted threads. You can also change the orientation in which the eyelet guide is installed. [Points to Consider When Using] ■ Choose specifications that match the desired tension ■ Surface treatment and installation orientation of the eyelet guide *For more details, please refer to the related links or feel free to contact us.

  • Other machine tools

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High-precision bolt tensioner and axial force management tool | Japan Prarad

High-precision bolt tensioner and axial force management tool | Japan Prarad

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

- Supports large bolt tightening from M20 to M300. (Custom production 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. (There is a record of simultaneously tightening 40 flange bolts in parallel.) - Bolts are pulled using hydraulic force, applying tensile load for tightening, which eliminates the influence of friction with the thread surface and seating surface. "Axial force can be managed directly," allowing for more accurate tightening through axial force management than torque management. - Features our unique ArmorMax protection with a super-hard surface finish. Excellent durability, wear resistance, and corrosion resistance maximize the lifespan of the tool. - The compact and lightweight bolt tensioner allows for bolt tightening even in confined spaces. Custom production is also possible. - Since the bolts are not twisted, there is no generation of friction heat, preventing galling between the nut and flange surface and seizing of the threaded parts. <For inquiries about purchasing or renting bolt tensioners> Please contact us for free demos, quotes, and material requests. Nihon Purarado Co., Ltd. TEL: 078-967-3556

  • Other work tools
  • Torque wrench
  • Hydraulic Equipment

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