Post Tensioning Jack

A variety of specialised equipment is employed to ensure structural integrity and performance. Stressing jacks are pivotal, applying tension to steel tendons within concrete, enhancing its tensile strength.

Equipment (from Allen Hydraulic Engineering Ltd) like stressing pumps, strand pushers, seating jacks and onion jacks - these tools form an integral part of the post-tensioning process, contributing to the safety, durability, and longevity of concrete structures.

Jack Code	TYPE	CAPACITY (kNs) SWL	LENGTH incl. NOSE/TAIL (mm)	CYLINDER Dia (D1)	WEDGE SIZE (mm)	STROKE (mm)	MAX. PRESSURE (Bar)	Accessories
SJ-T10	S/R	98	330	76	12.7 & 15.2	63	700	Auto-nose lock off
SJ-T20	S/R	210	335	98	9 (wire), 12.7 & 15.2	50	700	Auto-nose lock off
SJ-T25	D/A	250	550	120	12.7 & 15.2	120 - 220	550	Auto-nose lock off, safety relief-valve
SJ-T25B	D/A	255	Varies	115	9 (wire), 12.7 & 15.2	150 - 485	700	Auto-nose lock off, safety relief-valve & hydraulic lock-off nose
SJ-T30	D/A	300	525	125	32	200	700	Auto-nose lock off, safety relief-valve & hydraulic lock-off nose
SJ-30TWIN	D/A	300	560	-	12.7 & 15.2	215	700	Hydraulic lock-off nose and twin loading cassette