The SSAB drop hammer test rig: a) Applied mass. b) Guide columns. c) Impactor. d) Drop height. e) Specimen between clamps. f) Laser beam.

 Drop height max.  2.82 m (9.252’)
 Hammer weight  180 - 400 kg (397 -  882 lbs.) 
 Impact radius  30 - 50 mm (1.181 -  1.969”)
 Frame size opening  500 x 500 or 800 x 800 mm (20 x 20” or 32 x 32”)
 Maximum test plate thickness  50 mm (1.969”)
 Drop height max.
 2.82 m (9.252’)
 Hammer weight
 180 - 400 kg (397 -  882 lbs.) 
 Impact radius
 30 - 50 mm (1.181 -  1.969”)
 Frame size opening
 500 x 500 or 800 x 800 mm (20 x 20” or 32 x 32”)
 Maximum test plate thickness
 50 mm (1.969”)

Parameters for the impact test rig.

Results from the drop hammer rig show that using Hardox® 500 Tuf instead of Hardox® 450 reduces dent depths. In some cases, even though a thinner plate of Hardox® 500 Tuf is used, it will dent less than Hardox® 450.

Drop hammer impact test for Hardox® 450 and Hardox® 500 Tuf. The dent depths are examples. Other factors, such as suspension and rock toughness, will also influence the dent resistance.