ZJ 40 We supply a full line of drilling rig packages: skid-mounted drilling rigs, truck-mounted drilling rigs and trailer-mounted drilling rigs. Our skid-mounted drilling rigs include diesel electric AC/VFD or DC/SCR drive rigs, mechanical drive rigs, and combination drive rigs, from 1,000 HP to 6,000 HP. Our truck-mounted drilling rigs range from 450 HP to 1,000 HP. We supply a full line of drilling rig packages: skid-mounted drilling rigs, truck-mounted drilling rigs and trailer-mounted drilling rigs. Our skid-mounted drilling rigs include diesel electric AC/VFD or DC/SCR drive rigs, mechanical drive rigs, and combination drive rigs, from 1,000 HP to 6,000 HP. Our truck-mounted drilling rigs range from 450 HP to 1,000 HP.