描述
Product Features
Suitable bolt sizes: M22–M100
Maximum operating pressure: 150 MPa
Particularly suitable for fastening applications in confined spaces and machinery subject to vibration. Multiple bolts can be tensioned simultaneously.
Torque-free tensioning design eliminates the effects of friction and bolt twisting on preload, ensuring that the bolt is subjected to pure tensile force.
Preload can be set accurately, with accuracy up to ±3%.
Equipped with a stroke indicator, allowing the operator to observe, measure, and control bolt elongation during operation.
Applications
HD Series Hydraulic Nuts are suitable for applications involving bolts that require frequent assembly and disassembly, preloading of extra-large bolts, and locking of large workpieces.
They can also be used as hydraulic tools for the assembly and disassembly of interference-fit components. Installing or removing bearings on tapered shafts or sleeves is often difficult and time-consuming. Hydraulic nuts significantly simplify this process and improve operating efficiency.
High-pressure hydraulic oil is supplied to the hydraulic nut by a high-pressure pump, generating force to drive the piston. This controlled axial force enables bearings and other interference-fit components to be installed or removed accurately, efficiently, and safely.





