This compression jig is strictly compliant to Rock core specimens Test Methods, in particular the spherical seat / compression plates / specimen diameters’ ratios fall within the prescriptions. The high stiffness structure and the high performance steel of the spherical seat make this device particularly suitable for high strength rock specimen featuring brittle properties and explosive failure. It consists of a heavy duty twin-column frame, a spherically seated upper platen hold by calibrated springs and a lower platen centred on the frame base. It shall be preferably fixed on the compression machine piston head by the threaded pin included in the supply compatible with all compression frames / machines.

Technical Specifications:

Platens hardness: ≥ 58 HRC

Loading head stroke: 66 mm

Vertical clearance: 167 mm

Max. loading capacity: 1,200 kN

Platens dia.: 80 mm

Supplied with distance pieces to reduce the vertical clearance: 2 pcs. h 30 mm and 1 pc. h 22 mm

Overall dimensions: 249 mm dia. x 333 mm height 

Weight: 30 kg.