The AirTAC Airtac SC40 Standard Cylinder SC40X250TC is a genuine double-acting standard air cylinder with a Ø40mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X250TC is a double-acting tie-rod cylinder with a 40 mm bore and 250 mm stroke, supplied with a centre trunnion (TC) mount and TCM1 bracket for pivoting applications. It generates 628 N of push force and 528 N of pull force when operated at 0.5 MPa, making it a capable mid-range actuator for moderate loads.
This model features a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion at each end (21 mm length) decelerates the piston smoothly, and the total extended body length is approximately 392 mm (142 mm body length A + 250 mm stroke).
| Model | Airtac SC40 Standard Cylinder SC40X250TC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The 250 mm stroke and centre trunnion mount allow the SC40X250TC to pivot smoothly, making it ideal for actuating diverter gates on light-to-medium package conveyor lines.
With 628 N of clamping force at 0.5 MPa, this cylinder provides consistent holding power for jigs and fixtures in machining, welding, or assembly stations.
The pivoting TC mount suits agricultural slide gates on seed or grain hoppers, where the 250 mm stroke opens and closes the chute reliably under dusty conditions.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa; if your load requires more force, step up to the SC50 which provides 982 N at the same pressure. For lighter, more compact needs, the SC32 delivers 402 N. The 250 mm stroke is well within the 1200 mm maximum standard stroke for this 40 mm bore.
When replacing an existing cylinder, match five points exactly: 40 mm bore, 250 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with F-SC40TC bracket, and confirm whether a magnet (-S) is required for sensors. For strokes of 300 mm or more, consider external guides to protect the rod from bending under side load.
Quick checklist
At 0.7 MPa operating pressure, the theoretical push force is 879 N and the pull force is 738 N (calculated from the 528 N pull force at 0.5 MPa). The maximum push force at 0.9 MPa is 1130 N.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder, so mounting dimensions and body length are not interchangeable. Only replace another AirTAC SC tie-rod cylinder of the same bore, stroke, port, and mounting type.
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