Manufacturer of Hydraulic Bolting Solutions •Maximum working pressure 150Mpa. •The preload can be accurately set, the precision is up to ±3%. •Adopt no-torque design to avoid the influence of friction, bolt distortion, bolt pre-tightening force and other factors, so the bolt is to be tightened by pure tension force. •Particularly suitable for heavy-duty vibration mechanical fastening. •With stroke indicator, it is allowed to observe, measure and control the tensioner during operation. Bolt size Outside diameter Action area Bottom ring hydraulic nut