Heavy-duty series
SES LA-HD Heavy-Duty Linear Actuator — Up to 2,700 lbf
For heavy doors, flood barriers, and large covers. Configurable force and speed.
The LA-HD covers the loads the LA-300 series can't: up to 2,700 lbf and strokes to 39.4 in. It runs on a DC drive at up to 10.5 A, so we don't sell it bare. Every LA-HD ships as a complete SES system, with the power supply, control panel, and remote station wired and bench-tested together. Your installer lands line power at the SES panel.
Smart Engineering Solutions
TitleLA-HD heavy-duty
ModelLA-HD
Sheet10 of 22
RevB
DrawnSES
ScaleNTS
Date2026-10-27
Specifications
| Max rated force | 2,700 lbf (12,000 N) |
|---|---|
| Force / speed | Configurable, 720 – 2,700 lbf — see configuration matrix |
| Input voltage | 12 / 24 / 36 / 48 VDC — supplied with an SES power/control panel |
| Current @ 24V | 10.5 A full load, 2.4 A no load (20 A / 4 A @ 12V) |
| Stroke range | 1.97 – 39.4 in (50 – 1,000 mm) |
| Retracted length | 11.8 in min; approx. stroke + 9.8 in for strokes ≥ 8 in |
| Duty cycle | 20% |
| Drive screw | ACME — no back-driving (self-locking) |
| Overload protection | Mechanical clutch |
| Extension tube | 304 stainless steel |
| Limit switches | Built-in |
| Options | Potentiometer, Hall sensor, manual hand-crank drive |
| Ingress protection | IP66 (washdown / outdoor rated) |
| Operating temperature | −40°F to 149°F (−40°C to +65°C) |
| Certification | CE |
Sold as a complete SES system
- SES LA-HD actuator, configured from the matrix below
- Matched DC power supply and SES control panel
- Remote push button station
- Wiring diagram and schematic in the panel door
- Wired together and bench-tested before it ships
- Lead time
- Quoted per configuration
- Warranty
- 1-year SES warranty, handled directly by us
Configuration matrix
Rated force and full-load speed by gear ratio and screw pitch. The highlighted cell is the max-force configuration. No-load speeds run higher, and custom speed/load combinations are available.
| Gear ratio | 4 mm pitch | 8 mm pitch | 12 mm pitch |
|---|---|---|---|
| 20:1 | 1,686 lbf / 0.35 in/s | 1,124 lbf / 0.55 in/s | 719 lbf / 0.94 in/s |
| 30:1 | 2,473 lbf / 0.24 in/s | 1,574 lbf / 0.37 in/s | 1,012 lbf / 0.51 in/s |
| 40:1 | 2,698 lbf / 0.18 in/s | 2,248 lbf / 0.28 in/s | 1,461 lbf / 0.43 in/s |
Options
- Position feedback — potentiometer or Hall sensor, read by an SES control panel built for it
- Manual hand-crank drive — moves the load during a power failure
- Dual-actuator sync — engineered into the SES control panel on request
Send the load, stroke, and cycle time. We'll configure the LA-HD kit.
A sketch or photo of the door or cover is enough to start.