Fore-Cramp stressing jack

QR jack's guide pipes were designed guiding pc strands go through in the internal,wedge on pallet can clamp strand automatically

QR company draws on top technologies of jack manufacturing , integrating various advantages. And keep improving the operational of the jack by listening opinions widely from first-line engineers in construction site.

 

The current design QRA100~QRA650 ton series jacks are widely used in multi-strand anchorage stressing, with the feature of compact in frame, light in weigh, complete model, According to the client's special require, we can assemble the jack with domestic or imported seals for alternate choice.

 

QR engineers according to the actual tension cases. In the spirit of non-fragile, easy to operate principle, QR series jacks combined with lots of experience and advantage from both domestic and international that make our jacks have excellent performances. QR jack’s manufacturing technology is complex, the guide pipes were designed guiding the pc strands go through in the internal. Moreover, the pallet of wedge can clamp the strands automatically that can avoid install the wedge one by one, which improve the stressing effective largely, save lots of working time and bring great convenience to first-line operations.

 

Type	Capability (KN)	Rated pressure (Mpa)	Piston Area (mm2)	Core though dia(mm)	Stoke (mm)	Weight (kg)	Size (mm)
QRB280	2900	53	500	/	100	280	500×390
QRB450	4660	53	804	/	100	410	580×485
QRB500	5006	53	894	/	200	640	950×540

Fore-Cramp stressing jack