Compact actuator
Thomson Electrak MD
Medium-duty 12/24 V DC lead-screw actuator with the same sealing as the HD, offered with low-level switching, position feedback and CAN bus options.
Key specifications
| Ingress protection | IP67 / IP69K static; IP66 dynamic |
|---|---|
| Temperature | -40–70 °C |
| Force (max) | 2,000 N |
| Stroke (max) | 300 mm |
| Linear speed (max) | 52 mm/s |
| Screw type | acme / lead screw |
| Supply | 12, 24 Vdc |
| Duty | 25% at full load, 25 C |
| Sizes | MDxxA025: 250 N; 52 mm/s no load, MDxxA050: 500 N; 28 mm/s, MDxxA100: 1,000 N; 14.5 mm/s, MDxxA200: 2,000 N; 7 mm/s |
Summarised in our own words from Regal Rexnord's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Metric as printed. Static and dynamic load equal. Strokes 50-300 mm in 50 mm steps. Duty printed as '25' without unit (assumed %). No specific applications list on page; entry is generic.
Specify Motion is not affiliated with Regal Rexnord. Thomson and Electrak MD are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Thomson part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
12/24 VDC acme leadscrew push/pull actuator with internal gearbox and built-in limit switches, for light-industrial, mobility and furniture automation.
| Published maximum | Electrak MD | G-Series Leadscrew Linear Actuator |
|---|---|---|
| Force | 2,000 N | 6,000 N meets or exceeds |
| Stroke | 300 mm | 400 mm meets or exceeds |
| Speed | 52 mm/s | — |
Worm-gear acme screw DC actuator rated 6,000 N push with aluminium housing and stainless rod, for lifting beds, wheelchairs and automation.
| Published maximum | Electrak MD | GT44 Linear Actuator |
|---|---|---|
| Force | 2,000 N | 6,000 N meets or exceeds |
| Stroke | 300 mm | 400 mm meets or exceeds |
| Speed | 52 mm/s | 6 mm/s |
Compact 12/24 VDC acme screw actuator with powder-metal gearing in five ratios trading force (300-2,000 N) against speed.
| Published maximum | Electrak MD | GD Geared Linear Actuator |
|---|---|---|
| Force | 2,000 N | 2,000 N meets or exceeds |
| Stroke | 300 mm | 300 mm meets or exceeds |
| Speed | 52 mm/s | 40 mm/s |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other compact actuator series
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