VTM series electric actuator features compact size,, robust construction, light weight as well as large output torque (35NM-4000NM). Worm gearing and vortex rod in high precision provide self - locking function and declutchable manual override design eliminates clutching operation in operation method switch. The series offers product features guaranteeing a stable and convenient operation satisfying IP67 protection level and ISO5211 mounting standard.