Skip to main content
How to Buy

LT Series - 27 to 225 lbs

The LT Series is a type of electric actuator designed for heavy-duty applications that may be exposed to harsh environments. These actuators are built to withstand challenging conditions.

Free Application Analysis

Standard Configurations

Temperature Range (ºF): -13ºF to 150ºF
Screw Drive Type: Acme
View Specifications

Documents

Catalogs
Product Sheet
Browse All Documents

Need Assistance?

Not sure if this is the right product for your application, or need a custom solution? Contact us today for help from an expert.

Features and Benefits

  • Safety
    Internal limit switches safely stop operation at fully retracted and fully extended positions
  • Strength
    Improved strength from zinc die cast housing
  • Corrosion Resistance
    Aluminum outer tube
  • Rotation Prevention
    No restraining torque required due to keyed translating tube
  • Smooth Operation
    Polished aluminum translating tube
  • Environmental Protection
    IP66 protection enables operation in rugged outdoor environments

Optional Features

  • Control LT Actuators’ motion through wired or wireless handsets
  • Sync multiple actuators using an AC controller
  • Choose from multiple add on features including: low speed motor, stainless steel translating tube, overload clutch, additional limit switches and feedback sensors
  • Positioning feedback via potentiometer
  • Design custom configurations with our application engineering team
  • Potentiometer, Hall effect, reed or optical feedback
  • Signal sending limit switch
  • Third limit switch
  • Stainless steel translating tube
  • Custom cable lengths
  • Wired or wireless handsets
  • AC power supply for multiple actuators
  • AC controller for synchronous operation

Specifications

    • Model Number Stroke Length (in) Lifting Speed at Rated Load (in/s) Environment (IP Code) Temperature Range (ºF) Screw Drive Type Limit Switch
      LT25-1-50 2 1.3 IP66 -13ºF to 150ºF Acme Fixed
    • Model Number Stroke Length (in) Lifting Speed at Rated Load (in/s) Environment (IP Code) Temperature Range (ºF) Screw Drive Type Limit Switch
      LT100-1-100 4 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-100P 4 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-150 5.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-150P 5.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-200 7.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-200P 7.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-250 9.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-250P 9.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-300 11.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-300P 11.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-50 2 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-1-50P 2 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-100 4 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-100P 4 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-150 5.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-150P 5.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-200 7.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-200P 7.9 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-250 9.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-250P 9.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-300 11.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-300P 11.8 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-50 2 0.5 IP66 -13ºF to 150ºF Acme Included
      LT100-2-50P 2 0.5 IP66 -13ºF to 150ºF Acme Included
      LT150-1-100 4 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-100P 4 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-150 5.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-150P 5.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-200 7.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-200P 7.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-250 9.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-250P 9.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-300 11.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-300P 11.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-50 2 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-1-50P 2 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-100 4 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-100P 4 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-150 5.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-150P 5.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-200 7.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-200P 7.9 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-250 9.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-250P 9.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-300 11.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-300P 11.8 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-50 2 0.3 IP66 -13ºF to 150ºF Acme Included
      LT150-2-50P 2 0.3 IP66 -13ºF to 150ºF Acme Included
      LT225-1-100 4 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-100P 4 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-150 5.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-150P 5.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-200 7.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-200P 7.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-250 9.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-250P 9.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-300 11.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-300P 11.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-50 2 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-1-50P 2 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-100 4 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-100P 4 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-150 5.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-150P 5.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-200 7.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-200P 7.9 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-250 9.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-250P 9.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-300 11.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-300P 11.8 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-50 2 0.2 IP66 -13ºF to 150ºF Acme Included
      LT225-2-50P 2 0.2 IP66 -13ºF to 150ºF Acme Included
      LT25-1-100P 4 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-150 5.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-150P 5.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-200 7.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-200P 7.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-250 9.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-250P 9.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-300 11.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-300P 11.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-1-50P 2 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-100 4 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-100P 4 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-150 5.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-150P 5.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-200 7.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-200P 7.9 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-250 9.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-250P 9.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-300 11.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-300P 11.8 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-50 2 1.3 IP66 -13ºF to 150ºF Acme Included
      LT25-2-50P 2 1.3 IP66 -13ºF to 150ºF Acme Included
      LT50-1-100 4 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-100P 4 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-150 5.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-150P 5.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-200 7.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-200P 7.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-250 9.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-250P 9.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-300 11.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-300P 11.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-50 2 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-1-50P 2 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-100 4 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-100P 4 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-150 5.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-150P 5.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-200 7.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-200P 7.9 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-250 9.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-250P 9.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-300 11.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-300P 11.8 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-50 2 0.9 IP66 -13ºF to 150ºF Acme Included
      LT50-2-50P 2 0.9 IP66 -13ºF to 150ºF Acme Included

Documents

Brochures & Catalogs

[Catalogs] Linear Actuator Design Guide Catalog [Brochure] Duff-Norton Capabilities Brochure S1

Manuals & Supplements

[O&M Manual] LT Series O&M Manual

Product & Data Sheets

[Product Sheet] LT Series Product Sheet [Product Sheet] LT Series Specs and Part Numbers

Product Diagrams

LT Series Dimensions

LT Series Dimensional Drawing

Linear Actuator System Controls

TC1 Control Box

LTEC

Features and benefits

LA-TC1-control-box.jpg

LA-LTEC.jpg

 
  • IP66 protection for outdoor applications
  • Actuators with self-locking ACME screw
  • Easy assembly with plug-and-play technology
  • Temperature range: -13ºF (-25ºC) to 150ºF (65ºC
  • LED for power supply indication on the controller
  • Electronic Overload Protection (controller)

Synchronized Linear Actuator systems
The Duff-Norton linear actuator system will allow you to synchronize two linear actuators and control up to another two linear actuators independently. A Duff-Norton linear actuator system includes linear actuators, a controller and a hand set for operation. System applications can include agricultural machinery, industrial automation and outdoor power equipment.

Two Synchronized

Two Synchronized - One Independent

Two Synchronized - Two Independent
Part No. TH1-121-2016S Part No. TH1-321-2016S Part No. TH1-421-2016S
Two Synchronized actuator controls Two Synchronized - One Independent actuator controls Two Synchronized - Two Independent actuator controls

Model Number

Description

Feature

Feature

Other
See LT models Actuator 24 VDC models only Hall Sensor models only (add H suffix to part number) any capacity or stroke length
TC1-2241-1221 Controller 120 VAC power in - 82" cord 24 VDC power out 1 per system
NA Actuator Extension Cable 40" NA NA NA
See image above Handset partial coiled wire extends to approx. 7 foot length 1 per system

Please do not exceed 10% of 2 minutes continuous use duty cycle with these systems. Exceeding these rates might result in a temporary suspension of service. The system should operate again after a brief cooling period. For synchronized operation please select the Hall Sensor models only. Models with no feedback, or the potentiometer may be used for independent operation, and will require the LTEC kit.

Linear Actuators Controlled Independently
The Duff-Norton linear actuator system will allow you to control up to four linear actuators independently. A Duff-Norton linear actuator system includes linear actuators, a controller and a hand set for operation. System applications can include agricultural machinery, industrial automation and outdoor power equipment.

One Independent

Two Independent

Three Independent

Four Independent
Part No. TH1-121-2016 Part No. TH1-221-2016 Part No. TH1-321-2016 Part No. TH1-421-2016
One Independent actuator control Two Independent actuator controls Three Independent actuator controls Four Independent actuator controls

Click here to download a PDF with larger images.

Model Number

Description

Feature

Feature

Other
See LT models Actuator 24 VDC models only non-feedback models only any capacity or stroke length
TC1-2241-1221 Controller 120 VAC power in - 82" cord 24 VDC power out 1 per system
LTEC Actuator Extension Cable 40" approx length 2 prong terminal and 6 pin round connector ends 1 per actuator
See image above Handset partial coiled wire extends to approx. 7 foot length 1 per system

Please do not exceed 10% of 2 minutes continuous use duty cycle with these systems. Exceeding these rates might result in a temporary suspension of service. The system should operate again after a brief cooling period. For synchronized operation please select the Hall Sensor models only. Models with no feedback, or the potentiometer may be used for independent operation, and will require the LTEC kit.

Related Products

TMD01 Series Industrial Linear Actuator

TMD01 Series - 100 lbs

The TMD01 Series Actuator can be found in industrial automation, robotics, medical devices, automotive systems, and home automation.

TMD02 Series Industrial Linear Actuator

TMD02 Series - 250 lbs

The TMD02 Series Actuators are commonly found in manufacturing, renewable energy, and industrial automation.

HMPD-C Series Industrial Linear Actuator

HMPD Series w/Clutch - 250 lbs

The clutch in the HMPD Series prevents damage by holding the load securely, even if the clutch slips.

HMPD Series with Limit Switch Industrial Linear Actuator

HMPD Series w/Limit Switch - 250 lbs

A Limit switch in the HMPD Series prevents the actuator from extending beyond its intended range, protecting the system from overcurrent and structural damage.