Original Position Compression Machine Structure: This equipment is consist of the flat jack, 4 columns, up pressure plate, down pressure plate, ball pad, hand pump compression rod, digital gauge and so on. 1. Rating pressure: 40KN 2. Limited pressure: 50KN 3. Max. Distance: 20mm 4. Limited distance: 25mm 5. Relative indication error: ±3% 6. Total weight of the equipment: 104kg, 57kg (the flat jack 57KGS included) 7. Plane size of the up pressure plate: 400mmX240mm 8. Oil reserve: 2L 9. Diameter of the oil tank for the flat jack: 140mm