Power Wedge Mechanical Pre-Stressing
Operation of Power Wedge creates yieldability within the unit, making it useable with yielding or non-yielding props. The unit is designed for use with 8 1/2" (215 mm) and 10" (250 mm) diameter props. Power Wedge can also be used in place of temporary steel supports in headgates, beltways, tailgates and intersections.
The Power Wedge provides consistent, high-quality performance.
- Converts torque into upward force on roof
- Generates active loads of up to 10 tons (9 tonnes)
- Force applied on roof is up to 250 times that of force on wrench
Torque is applied with a 1 1/8" (29 mm) socket via hand wrench, air or hydraulic tool. It provides pre-stressing without the need for water, grout or pumps.