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Instantly add the Helical Hydraulic Rotary Actuator - L20 Series and 50,000+ more product series to your store or catalog  
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Helical Hydraulic Rotary Actuator - L20 Series

Brand: Helac
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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.
Features
  • 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, simplifies supply chain, assembly and maintenance
  • Backdrives in Overload Conditions: Hydraulic fuse, prevents mechanical damage when properly equipped

1 - 12 of 80 Part Numbers
L20-15-E-FT-180/90-S1-0-H
L20-15-E-FT-180/90-S1-0-H
  • Model - 15
  • Measurement System - English System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - StandardSeals & Bearings
L20-15-E-FT-180/90-S1-0-S
L20-15-E-FT-180/90-S1-0-S
  • Model - 15
  • Measurement System - English System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - Special Seals & Bearings*
L20-15-E-FT-180/90-S1-C-H
L20-15-E-FT-180/90-S1-C-H
  • Model - 15
  • Measurement System - English System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - StandardSeals & Bearings
L20-15-E-FT-180/90-S1-C-S
L20-15-E-FT-180/90-S1-C-S
  • Model - 15
  • Measurement System - English System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - Special Seals & Bearings*
L20-15-ES-FT-180/90-S1-0-H
L20-15-ES-FT-180/90-S1-0-H
  • Model - 15
  • Measurement System - Custom Design*
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - StandardSeals & Bearings
L20-15-ES-FT-180/90-S1-0-S
L20-15-ES-FT-180/90-S1-0-S
  • Model - 15
  • Measurement System - Custom Design*
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - Special Seals & Bearings*
L20-15-ES-FT-180/90-S1-C-H
L20-15-ES-FT-180/90-S1-C-H
  • Model - 15
  • Measurement System - Custom Design*
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - StandardSeals & Bearings
L20-15-ES-FT-180/90-S1-C-S
L20-15-ES-FT-180/90-S1-C-S
  • Model - 15
  • Measurement System - Custom Design*
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - Special Seals & Bearings*
L20-15-M-FT-180/90-S1-0-H
L20-15-M-FT-180/90-S1-0-H
  • Model - 15
  • Measurement System - Metric System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - StandardSeals & Bearings
L20-15-M-FT-180/90-S1-0-S
L20-15-M-FT-180/90-S1-0-S
  • Model - 15
  • Measurement System - Metric System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - No Valve
  • Seals - Special Seals & Bearings*
L20-15-M-FT-180/90-S1-C-H
L20-15-M-FT-180/90-S1-C-H
  • Model - 15
  • Measurement System - Metric System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - StandardSeals & Bearings
L20-15-M-FT-180/90-S1-C-S
L20-15-M-FT-180/90-S1-C-S
  • Model - 15
  • Measurement System - Metric System
  • Housing - Foot Mount
  • Standard Rotation - 180°
  • Special Rotation - Standard Design with Internal Stop Tube to Limit Rotation - Indicates Final Rotation.*
  • Shaft / End Cap - Mounting Holes in Shaft Flange with Through-Hole for Tie Rod
  • Valve - Counterbalance Valve*
  • Seals - Special Seals & Bearings*
1 - 12 of 80 Part Numbers

View_Details

Specifications

Brand

Axial Capacity

  • 499 to 1,769 kg
  • 1,100 to 3,900 lbs

Displacement

  • 180° Rotation 8.05 to 65.7 in³ (131.9 to 1,076.6 cm³)

Drive Torque

  • 4,500 to 39,000 in-lb @ 3,000 psi
  • 509 to 4,407 Nm @ 207 bar

Holding Torque

  • 11,800 to 93,200 in-lb @ 3,000 psi
  • 1,333 to 10,532 Nm @ 207 bar

Moment Capacity Cantilever

  • 1,356 to 15,820 Nm
  • 12,000 to 140,000 in-lb

Moment Capacity Straddle

  • 2,543 to 31,640 Nm
  • 22,500 to 280,000 in-lbs

Mounting

  • Foot

Radial Capacity

  • 1,383 to 9,526 kg
  • 3,050 to 21,000 lbs

Standard Rotation

  • 180°

Type

  • Helical

Weight

  • 12.2 to 76.7 kg
  • 27.0 to 169 lbs

Documentation

Corporate Brochure

Product Brochure

Service & Repair Manual

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