Taizhou Soli Machinery Manufacturing Co., Ltd.-Color Logo

18 years of focus on hydraulic nut research and development and intelligent manufacturing
Originated from European and American technology · Exported to more than 20 countries

Video of hydraulic nut seal replacement by Soly at a glance

How to replace the seals of hydraulic nuts? The following is a complete set of video shows the entire seal replacement process, especially to emphasize is that the replacement of seals to keep the operating surface clean, spoils, debris, sand, rust must all be disposed of, do not use pointed tools when dismantling, so as not to scratch the inside of the nut, after the replacement of seals, must be in the nut of the inner side of the lubricant, according to the video operation down, your seal on the successful replacement is complete! Is not actually very simple …..


Ltd. as a high quality manufacturer of hydraulic machinery, 16 years focus on hydraulic nuts, bolt tensioner, hydraulic wrenches, electric hydraulic jack and PLC intelligent control of synchronous jacking jack and other high quality hydraulic machinery manufacturing and services, the enterprise set up R & D team to master the field of core technology to replace imported products, welcome all people to come to the factory to discuss cooperation.

Product Recommendation

SL-RTC super slim type cylinder/ super slim type jack

SL-RTC Super thin hydraulic jack

Has an ultra-low closing height and 5-10mm stroke for precise adjustment and lifting in very narrow workspaces. Adoption of high pressure design (150Mpa) makes the external dimension smaller, suitable for more narrow space. Single acting design with load return.

SL-RSM ultra-thin hydraulic cylinder/thin jack

SL-RSM Ultra-thin Hydraulic Cylinder Jack

Ultra-thin hydraulic jacks are lightweight, small in size, strong in carrying capacity, easy and quick to use, and are widely used in automotive manufacturing and maintenance, construction sites and other fields. Its light and portable and easy to control features are favoured.

SL-GT Hydraulic bolt tensioner

SL-GT Hydraulic bolt tensioner

Bolt tensioner is a special tool for tightening or dismantling bolts using hydraulic principle.
By stretching the bolt, it is elongated within the elastic deformation zone and the bolt diameter is slightly deformed so that the nut can be easily loosened or tightened. In addition, it can be used as a device for applying axial force to hydraulic interference connections for top pressure installation.
The operating principle of the bolt tensioner is based on the tensile strength, yield coefficient and elongation of the material. When working, the power source (such as hydraulic pump) output of high-pressure oil through the high-pressure hose delivery to the tensioner’s piston cylinder, under the pressure of the piston in the piston cylinder piston upward, driven by the stretching nut upward movement. The stretching nut is threaded with the working bolt, thus elongating the working bolt, so that the bolt elongation reaches the required amount of deformation (deformation control in the elastic deformation range). Then pre-tensioning or dismantling is carried out, and finally the working bolt is returned to its original shape by means of hydraulic or mechanical return to its original position to complete the operation.