Jackpots

The Jackpot is a hydraulic pre-stressing device for underground mine elongate support units.

Easy to install

Immediate loading

Active support reduces blast-out of supports

Jackpots

The Jackpot is a hydraulic pre-stressing device for underground mine elongate support units.

Easy to install

Immediate loading

Active support reduces blast-out of supports

Jackpots

The Jackpot is a hydraulic pre-stressing device for underground mine elongate support units.

Easy to install

Immediate loading

Active support reduces blast-out of supports

Jackpots

Jackpots are single-use hydraulic jacks which are placed on top of timber props and then inflated with high-pressure water through a non-return valve. Under pressures of 120 to 140 bar they expand axially and load the mine props to between 20 tonne and 50 tonne, locking the props into place and applying pressure against the rock mass.

Download

Size	Pole diameters (mm)	Maximum lift (mm)	Inflation pressure (MPa)	Nominal load capacity (kN)
140	Ø100 – Ø135	40	11 - 13	492
160	Ø120 – Ø155	50		589
183	Ø140 – Ø180	50		736
220	Ø180 – Ø215	50