No tools needed! The hydraulic nut can tighten 40 flange bolts simultaneously! Since it tightens with uniform force at the same time, the bolt axial forces do not vary.
■ The hydraulic nut can tighten 40 flange bolts simultaneously at once! ■ The hydraulic nut is a revolutionary nut that tightens bolts by pulling them with the hydraulic function of the nut body! The nut itself tightens the bolt. ■ Since the nut is tightened by pulling force without twisting, there is no frictional influence with the seating surface, allowing for "direct axial force on the bolt," which enables precise tightening of the bolt. ■ It tightens multiple bolts simultaneously and uniformly, preventing variation. ■ Because it pulls and tightens the bolt hydraulically, it does not damage the surface of the flange or the seating surface of the nut. ■ Tightening through axial force management achieves higher precision than torque management due to the absence of frictional influence. ■ It accommodates large bolt tightening from M20 to M300 class. ■ There is also a stainless steel version of the hydraulic nut with anti-rust specifications. <For inquiries about purchasing hydraulic nuts> 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 hydraulic nut is a nut that pulls up and tightens bolts using its own hydraulic function. It is a high-precision bolt tightening technology for managing axial force. ■ It can tighten multiple bolts simultaneously with uniform force. ■ It is unaffected by friction, ensuring that the axial force of the bolt tightening does not vary. It solves issues of liquid and gas leaks in flange pressure vessels in chemical plants. ■ It can simultaneously tighten multiple bolts instantly, reducing work time. ■ It is a mechanical lock type, so there is no worry about loosening, providing peace of mind. ■ There is also a stainless steel version of the hydraulic nut with anti-corrosion specifications.
Price information
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Applications/Examples of results
- Bearing press fitting - Material holder for hob machine, solution for simultaneous rotation. - Flange bolts for chemical plants - Side trimmer for steel mills - Power meter for shipyards - Diesel engine cover - Steel sheet shear for steel mills, etc.
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.
