Helical Hydraulic Rotary Actuator - Helac L20-Series

Parker Helac L20 Series helical hydraulic rotary actuator is a cost-effective solution that can easily be designed into a wide range of applications. Helac’s helical, hydraulic sliding spline technology is non self-locking while providing high shock resistance with 180 degree rotation and high-holding torque for demanding applications. Functioning as a rotating device, mounting bracket and load bearing structure the L20 Series eliminates the need for external bearing systems, brakes or locking devices. Five standard sizes with torque output up to 39,000 in-lbs at 3,000 psi. Markets: Agriculture Construction Energy Marine Material Handling Military Mining Truck-Trailer Feature and Benefits: Powerful – High torque, high bearing capacity Durable – Moving parts enclosed, suitable for harsh environments Compact – High power density, fits in tight spaces Holds Position – Zero internal leakage, smooth operation, no external brake required Simplifies – Eliminates bearings, linkages & brackets, reduces bill of materials Backdrives in Overload Conditions – Hydraulic fuse, prevents mechanical damage Applications: Steering Boom positioning Drill positioning Platform, basket and jib rotation Conveyor positioning Davit rotation Mast - hatch positioning Access ramp deploy Attachment rotation Shotcrete nozzle rotation Pipe handling Brush positioning For over 50 years Helac has led the way in actuator technology and innovation. Our extensive line of compact and powerful rotary actuators offers simple and cost-effective solutions to move, support and position rotating loads in countless applications. Learn more about the performance and benefits of Helical Hydraulic Rotary Actuators under Product Support.