china hydraulic bolt stretcher supplier

China Hydraulic bolt stretcher Supplier

Advantages of hydraulic bolt stretcher: 1. Generally, mineral oil is used as the working medium, the relative moving surface can be self-lubricating and has a long service life. 2. Light weight, small volume, small inertia and fast reaction speed. 3. Various components of hydraulic transmission can be arranged conveniently and flexibly according to needs. 4. Overload protection can be realized automatically. 5. The operation and control are convenient, and multiple bolts can be fastened at the same time. Save labor cost. 6. It is easy to realize linear motion. 7. It is easy to automate the machine. Using electro-hydraulic combined control can not only realize a higher degree of automatic control process, but also realize remote control. 8. It can be used as a device for applying axial force in hydraulic interference connection.

There are four types of hydraulic bolt stretchers: universal type, puller interchangeable type, single pole deceleration type and double pole deceleration type. The working pressure of the four bolt tensioners is 150 MPa: 1. The common type is suitable for the tensioning of a single bolt, with light weight and high precision. Small size and compact structure; 2. It has strong universality. It can be used for tensile bolts of various specifications by replacing the tensile head; 3. The automatic reset design of single-stage reset piston is suitable for frequent use. 4. Double cylinder design, bipolar reset, suitable for the working environment with narrow space.

Maintenance of hydraulic bolt tensioner: 1. The operation shall be carried out in strict accordance with the methods and procedures required in the manual. The working pressure input by the bolt tensioner and the tensile length of the bolt shall not be increased at will to avoid damaging the sealing ring and relevant mating parts. 2. After the work, it shall be wiped clean and kept properly, especially the oil inlet interface shall not penetrate dust (after the construction is completed, the quick connection shall be covered with dust cap) to prevent damage to the oil cylinder and piston after entering the oil cylinder. 3. When replacing O-ring and other accessories, pay attention to matching to ensure the sealing effect. SAIVS is the professional China Hydraulic Bolt Stretcher Supplier, if you have any requirement, please contact us.