Mining Jumbo employs twin boom design.
Sandvik Tamrock Corp.
Tampere, FIN-3111
Oct 19, 2004 Axera 7 mining jumbo suits applications where heading size ranges from 4 x 4 to 6 x 6 m. Equipped with HLX5-series hydraulic rock drill with 20–22 kW percussion power rating, product drills cross-cuts and bolt holes as well as blast holes from 1 11/16 to 2½ in. It works with drifter rods up to 16 ft long and comes with two 55 kW electro-hydraulic power packs and articulated carrier with hydrodynamic transmission.
