For take care of customers better, We have established Branch of Company in Hanoi. We are an authorized representative to provide products: hydraulic jack, hydraulic tools and equipment and service repair of Hi-force (UK), Reliability service for LSC, oil mist for petrochemical pumps, .. air chain hoist from Japan, ball valves, control valves from Italy.
Hi-Force hydraulic bolt tensioners are designed to directly stretch the bolt by applying a known load to the fastener using a hydraulic cylinder and threaded puller. The securing nut is then rotated using a short tommy bar, whilst the thread is being stretched, until it is firmly tightened against the joint face. Immediately the hydraulic pressure (load) is released the bolt tension (residual load) is retained, within the clamp length of the bolt, because it is prevented from returning to its original length by the tightened nut.
