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.