Macalloy Hollow Jacks

BTJ Series

Capacity: 80 – 400 TON
Stroke: 100 mm

• Used with high tensile threaded bars for stressing, pulling & locking.
• Short strokes for lifting / aligning of segments & temporary stressing.
• Long strokes for pulling & locking multiple strands of concrete structure with tension bar attached to the pulling bracket.
• Customised Alloy Aluminium Bar Jacks – 25, 40, 60, 150, 200 & 300 ton.
• Designed to suit stressing bars of reputed makes of Macalloy, VSL, Freyssinet, Dextra, Tensacciai, Dywidag, Williams & others.
• Safety Pressure Relief valve in return line.