Super Duty Linear Actuator – High Force, Quiet Operation, Precision Feedback
The Super Duty Linear Actuator is built for demanding applications where strength, reliability, and precision matter. Its heavy-duty aluminum casing combined with a worm gear drive delivers quieter operation and significantly greater resistance to back-driving compared to traditional designs.
Housed in a thick, high-strength aluminum body with matching rods, it is engineered to handle substantial force while maintaining long-term durability. With a wide range of force, speed, and stroke configurations, it is suited for automation projects, custom builds, and heavy machinery.
Control & Functionality
Each actuator includes built-in limit switches that automatically stop the unit at full extension and retraction, helping protect equipment. For applications requiring more precision, an optional 4-wire Hall Effect sensor provides accurate positional feedback for synchronized or closed-loop control, while remaining easy to ignore in simpler setups.
The actuator integrates seamlessly with FCB-1 and FCB-2 control boards, enabling synchronized movement, adjustable speed, customizable limits, and timer-based operation. Wiring is straightforward, using a 2-wire motor connection where reversing polarity changes direction, alongside a 4-wire output for sensor feedback. For help with wiring up a Linear Actuator to other devices such as remotes, controllers, multiple Actuators, etc. please use our Wiring Diagram Generator
Design & Key Benefits
Constructed from a durable aluminum alloy with a fully sealed enclosure, this actuator is designed to perform reliably in a wide range of environments. Its worm gear system ensures smooth, quiet operation, while the compact design delivers high force output without unnecessary bulk.
The unit is maintenance-free, reducing downtime and long-term upkeep. All models include built-in limit switches and integrated Hall sensor wiring, providing flexibility for both basic and advanced control setups. A full range of compatible accessories is also available, including mounting brackets (MB17, MB20, MB21), along with remote controls, switches, microcontrollers, and power supplies.
| Model | F-SD-H-220-12v-XX | F-SD-H-450-12v-XX |
| Dynamic Force | 220 lbs. | 450 lbs. |
| Static Force | 220 lbs. | 450 lbs. |
| Speed ("/S) No Load | 15mm/sec (0.59") | 6mm/sec (0.23") |
| Max Draw | 5.5 amps | 5.5 amps |
| Feedback | Hall Sensor 4 Wires (20AWG) | Hall Sensor 4 Wires (20AWG) |
| Feedback Voltage | 5V | 5V |
| Pulses (per wire) | 17.4 pulses per mm of travel | 41.1 pulses per mm of travel |
| Accuracy | 0.02mm | 0.02mm |
| Duty Cycle | 25% at 100% load, 50% at 50% of load, and approx 75% and 25% of load | |
| Motor | 12V DC 32:1 gear ratio, 4000 RPM | |
| IP Rating | IP66 | |
| Screw Type | Worm Gear | |
| Sound Rating | ~ 50 dBA (1'), quiet | |
| Input | 12v DC (24v DC optional, up to 6 months lead time) | |
| Gear Ratio | 32:1 4000 RPM | |
| Clevis End | 8.2mm diameter on each end | |
| Operational Temperature | -40°C to 65°C (-40°F/150°) | |
| Limit Switches | Built-in, non-adjustable. For an adjustable limit switch, check out our "Adjustable limit switch Actuator" |
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| Synchronous Capability | Yes, with our Sync Control Board FCB-1 or FCB-2 or a Microcontroller | |
| Safety Certifications | CE | |
| Wire Length | 3 feet | |
| Bracket(s) | MB17 (Clevis), MB20, MB21 (Body) | |
| F-SD-H-220-12v-xx | |||
| Stroke | Retracted Length | Extended Length | Weight (lbs) |
| 2" | 6.413" (166mm) | 8.413" (217mm) | 2.8 |
| 4" | 8.543" (217mm) | 12.543" (321mm) | 3.1 |
| 6" | 10.551" (268mm) | 16.551" (421mm) | 3.3 |
| 8" | 12.559" (319mm) | 20.559" (523mm) | 3.4 |
| 10" | 14.528" (369mm) | 24.528" (623mm) | 3.6 |
| 12" | 17.717" (450mm) | 29.717" (755mm) | 3.8 |
| 14" | 19.724" (501mm) | 33.724" (857mm) | 4 |
| 16" | 21.732" (552mm) | 37.732" (959mm) | 4.2 |
| 18" | 23.74" (603mm) | 41.74" (1061mm) | 4.4 |
| 20" | 26.89" (683mm) | 46.89" (1191mm) | 4.7 |
| 22" | 28.898" (734mm) | 50.898" (1293mm) | 4.8 |
| 24" | 30.906" (785mm) | 54.906" (1395mm) | 5.0 |
| 30" | 36.89" (937mm) | 66.89" (1699mm) | 6 |
| 35" | 41.89" (1064mm) | 76.89" (1953mm) | 6.5 |
| 40" | 46.89" (1191mm) | 86.89" (2207mm) | 7 |
| F-SD-H-450-12v-xx | |||
| 2" | 6.413" (166mm) | 8.413" (217mm) | 2.8 |
| 4" | 8.543" (217mm) | 12.543" (321mm) | 3.1 |
| 6" | 10.551" (268mm) | 16.551" (421mm) | 3.3 |
| 8" | 12.559" (319mm) | 20.559" (523mm) | 3.4 |
| 10" | 14.528" (369mm) | 24.528" (623mm) | 3.6 |
| 12" | 17.717" (450mm) | 29.717" (755mm) | 3.8 |
| 14" | 19.724" (501mm) | 33.724" (857mm) | 4 |
| 16" | 21.732" (552mm) | 37.732" (959mm) | 4.2 |
| 18" | 23.74" (603mm) | 41.74" (1061mm) | 4.4 |
| 20" | 26.89" (683mm) | 46.89" (1191mm) | 4.6 |
| 22" | 28.898" (734mm) | 50.898" (1293mm) | 4.8 |
| 24" | 30.906" (785mm) | 54.906" (1395mm) | 5 |
| 30" | 36.89" (937mm) | 66.89" (1699mm) | 6 |
| 35" | 41.89" (1064mm) | 76.89" (1953mm) | 6.5 |
| 40" | 46.89" (1191mm) | 86.89" (2207mm) | 7 |
