Roller screw actuator
Exlar FTP Series (press actuator)
Oil-lubricated planetary roller-screw actuator optimised for pressing, with extension force ratings up to around 356 kN and rated life quoted in press cycles.
Key specifications
| Force (max) | 355,800 N |
|---|---|
| Stroke (max) | 900 mm |
| Linear speed (max) | 401 mm/s |
| Screw lead | 12 |
| Screw type | planetary roller screw |
| Sizes | FTP160 (160 mm): 200 kN extension / 89 kN retraction; strokes 150, 300, 600, 900 mm; 401 mm/s; min life 3 million press cycles at max force, FTP215 (215 mm): 355.8 kN extension / 177.9 kN retraction; strokes 150, 300, 600 mm; 351 mm/s; min life 1.6 million press cycles at max force |
Summarised in our own words from Curtiss-Wright Actuation Group's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Metric as printed (overview rounds FTP215 to 355 kN / 40 tf). force_N_max is extension force; retraction max is lower (89 kN / 177.9 kN). Page labels it 'max continuous force' but defines it as maximum routinely applied force. IP rating, temperature and duty not published for FTP. 2026 FTP catalog PDF linked but not separately read.
Specify Motion is not affiliated with Curtiss-Wright Actuation Group. Exlar and FTP Series (press actuator) 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 an Exlar 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.
Heavy-duty version of the RSA rod actuator with roller-screw options, matched angular-contact bearings and larger motor mounts, reaching 58 kN on size 64.
| Published maximum | FTP Series (press actuator) | RSA-HT (high thrust) |
|---|---|---|
| Force | 355,800 N | 58,000 N |
| Stroke | 900 mm | 1,524 mm meets or exceeds |
| Speed | 401 mm/s | 3,124 mm/s meets or exceeds |
High-force planetary roller-screw (and ball-screw) rod actuator up to 294 kN, positioned as a direct hydraulic cylinder replacement, with oil-cooled and food-grade versions.
| Published maximum | FTP Series (press actuator) | RSX Extreme Force |
|---|---|---|
| Force | 355,800 N | 294,000 N |
| Stroke | 900 mm | 1,500 mm meets or exceeds |
| Speed | 401 mm/s | 760 mm/s meets or exceeds |
Tolomatic servo rod actuators for resistance spot-welding guns, listed only in the overview brochure.
| Published maximum | FTP Series (press actuator) | SWA/B Resistance Spot Welding and GSWA |
|---|---|---|
| Force | 355,800 N | 24,500 N |
| Stroke | 900 mm | 457 mm |
| Speed | 401 mm/s | 610 mm/s meets or exceeds |
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 roller screw actuator series
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