The LS400T+ water well and geothermal drill is Lone Star's largest rig and can drill as deep as 400ft through hard rock and volcanic formations. The new hydraulic motor reduces rotary service time from days to less than an hour.

"The Rineer motor and Super Swivel combination is an all-around improvement compared to the drill's previous top drive swivel and hydraulic motor. It's easier to work on, provides greater torque, and is priced right, making it economical to keep a backup swivel on hand for emergencies," said Joe Haynes, Little Beaver's president. "With the previous rotary, servicing a leak often took the drill out of use for two to three days while the swivel was in the shop. Now the drill can be up and running in about 30 minutes with a backup swivel and operators can replace seals on the leaking swivel at their leisure."

Lone Star offers the LS400T+ with two different Rineer motors, both providing greater torque than the drill's previous hydraulic motor. The MV037 operates at a maximum speed of 125rpm and is ideal for mud rotary drilling. The motor generates up to 1,030ft lbs of torque at 3,000psi. The larger MV057 operates at a maximum speed of 60rpm and is ideal for DTH hammer drilling. It offers as much as 2,200ft lbs of torque at 3,000psi.

The LS400T+ delivers 15,000lbs of pullback force — three times more than Lone Star Drills' next largest model — and 9,000lbs of push-down force. At a weight of 7,700lbs, the drill requires less anchoring than lighter trailer-mounted rigs. It also accommodates 10ft drill pipe, which allows crews to quickly reach target depth.