Lithium battery Rail impact wrench machine Vertical double lithium electric torque wrench (model: U-LD81901) is a railway digital display torque wrench with vertical operation and double lithium electric protection technology, and its working torque is>3000N m. The torque value is adjustable and controllable, which is specially used for various railway bolt operations. The vertical double lithium electric torque wrench (model:LJ - LDB1901) is composed of a control lever, a motor, and a reducer. It adopts the unique ergonomic flat impact principle, which makes the machine more safe, labor-saving, and efficient. Its unique overall waterproof design ensures the all-weather construction needs. Torque regulation and compensation can make torque control more accurate to meet construction requirements. Model Battery Rail power wrench LJ-LD81901 Rated voltage (DCV) 18-36 Max. torque 3000 N.m motor speed (RPM) 0-3000 optional impact frequency (BPM) 0-5000 optional battery pack capacity (ah) 18-36 operating temperature range (-40 ~ 50 ) torque control adjustable and controllable