A wind power equipment assembly workshop currently needs to frequently install and remove support base bolts—four times a week. Under these high-frequency operating conditions, the process is cumbersome and time-consuming for each individual operation. Repeating this task multiple times a week results in a significant cumulative loss of labor hours, which reduces the workshop’s production capacity. In response, the client has requested the design of a hydraulic nut to replace standard nuts. These hydraulic nuts should be capable of being connected in series to enable rapid installation and removal. Additionally, after delivery, the supplier must provide on-site installation, commissioning, and training support.

Therefore, WREN has developed this hydraulic nut, which features a hollow design and is manufactured from high-strength alloy steel. It is safe and reliable, and mechanically locks after pressurization; it has a tensile force of >1050 kN, a maximum stroke of >6 mm, a maximum pressure of 150 MPa, and a maximum outer diameter of ≤110 mm.

Multiple hydraulic nuts can be connected in series and powered by a single high-pressure electric pump, enabling simultaneous force application and locking. This ensures uniform force distribution across all bolts, eliminating equipment vibration and connection loosening caused by uneven force distribution, thereby ensuring stable equipment operation.

WREN engineers offer a full range of customized services. We carry a comprehensive selection of hydraulic bolt accessories—including hydraulic wrenches, hydraulic pumps, and tensioners—ranging from standard to specialty models. If you have any needs, please feel free to contact us!