The AirTAC Airtac SC40 Standard Cylinder SC40X172S is a genuine double-acting standard air cylinder with a Ø40mm bore and 172mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X172S is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa). Its 40 mm bore and 172 mm stroke suit mid-range linear tasks where sensor feedback is required.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-stroke position sensing. The 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration, while the PT1/4 port thread ensures straightforward pneumatic connections.
| Model | Airtac SC40 Standard Cylinder SC40X172S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 172 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. |
| ×172 | 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 built-in magnet enables CMSG/DMSG sensors to confirm retraction or extension, ideal for conveyor gates and part-present detection in automated assembly.
With 628 N of force at standard shop air, this cylinder handles light pressing, holding, and clamping operations where position feedback ensures cycle completion.
The 172 mm stroke provides enough travel to divert packages or components on sorting lines, with magnetic sensors confirming gate position for the control system.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa. If your load exceeds 800 N, step up to the SC50 bore (982 N at 0.5 MPa); for lighter, faster applications, the SC32 bore (402 N) may be sufficient. At 172 mm stroke, rod alignment is critical—ensure the load is guided externally to prevent side-load bending of the 16 mm rod.
For a drop-in replacement, match five points: 40 mm bore, 172 mm stroke, PT1/4 port thread, basic mounting (no bracket), and the -S magnet option. This is a tie-rod cylinder and will not interchange with ISO 15552 profile cylinders.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 528 N. At 0.7 MPa push force rises to 879 N, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 cylinder, so mounting dimensions and body length A (142 mm) will not match. Only use it to replace another AirTAC SC tie-rod cylinder with identical bore, stroke, port thread, mounting, and magnet option.
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