The AirTAC Airtac SC40 Standard Cylinder SC40X15STC is a genuine double-acting standard air cylinder with a Ø40mm bore and 15mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X15STC is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa) from its 40 mm bore. With a compact 15 mm stroke and a 16 mm diameter piston rod, this model is built for short, precise linear movements in confined spaces.
This specific configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, plus a centre trunnion mount (TC) with the TCM1 bracket (F-SC40TC). The trunnion allows the cylinder body to pivot, making it ideal for swinging or articulating loads. Seals are standard TPU for a -20 to +70 °C operating range, and ports are PT1/4.
| Model | Airtac SC40 Standard Cylinder SC40X15STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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. |
| ×15 | 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 short 15 mm stroke and pivoting trunnion mount make this cylinder a strong choice for small diverter gates on packaging conveyors, where a quick, repeatable flick motion is needed.
Delivers a firm 628 N clamping force at standard line pressure. The built-in magnet allows end-of-stroke sensing to confirm the part is securely clamped before a machining cycle starts.
The centre trunnion mount allows the cylinder to swing through an arc, making it suitable for actuating levers, linkages, or tensioning arms on small assembly machines.
For applications needing more force, stepping up to a 50 mm bore (SC50) provides 982 N at 0.5 MPa. If a shorter body is critical, the SC40 is already the smallest standard tie-rod option in this family. The 15 mm stroke is well within the standard range for this bore.
When replacing this cylinder, match five key points: 40 mm bore, 15 mm stroke, PT1/4 port thread, the centre trunnion (TC) mounting accessory, and the built-in magnet (-S) for sensor compatibility. The SC is a tie-rod design, not an ISO 15552 profile cylinder, so dimensional interchangeability is limited to other AirTAC SC40 models.
Quick checklist
At the standard operating pressure of 0.5 MPa, the push force is 628 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code indicates a built-in magnet is installed on the piston. This allows you to directly clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors onto the barrel to detect piston position without any additional brackets.
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