• Mon - Fri : 08.30 - 18.00 | Lunch Time : 13.00 - 15.00 | Sat & Sun : Closed

Hydraulic Jacks & Cylinders

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.

General Hydraulic Cylinders
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

Looking for precision post-tensioning solutions?

Our Post Tensioning Jacks deliver accurate and controlled stressing performance to enhance structural strength, stability, and durability for concrete and infrastructure projects.

Explore our complete range of post-tensioning equipment, including stressing jacks, pumps, strand pushers, seating jacks, and onion jacks for safe and efficient structural reinforcement operations.

Copyright © 2026. All Rights Reserved by Synergy Innovative Diving Equipment Trading LLC