QYC front-end fixed jack for prestressing

Specifications The fore-cramp type jack is a kind of multipurpose prestressing equipment. It is easy to operate.

The fore-cramp type jack is a kind of multipurpose prestressing equipment. It is easy to operate. It is mainly used to stretch single hole. It is also used to multi-hole pretension, stretch and debug. It is suit for all kinds of high strength steel wire bundles and strands.   QYC front-end fixed jacks have internal re-usable anchor which can automatically clamp and loosen the wedge, they are mainly used for BFM15 and BFM13- type various single tensioning with bonded and unbounded.
Notice: QYC type front-end fixed jacks could be matched with different size, length of the top cover, retreat anchor device, to used in the experiment by root tension pre-tightening, tension retreat anchor and stay cable tone with single cable.

Model		Nominal hydraulic	Area of stressing  cylinder	Return hydraulic	Stroke of stressing	Diameter of   minimum centre hole	Overall dimension	Mass	Minimum  working    space	The reserved  length of strand
	KN	Mpa	mm2	Mpa	mm	mm	mm	kg	mm	mm
QYC270	270	62	4400	<10	200	Φ17	Φ114×529	24	750×110	220