The AirTAC Airtac SC40 Standard Cylinder SC40X80SN is a genuine double-acting standard air cylinder with a Ø40mm bore and 80mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X80SN is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa), making it a solid mid-range actuator for general industrial automation. This 80 mm stroke model features a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports.
The -S suffix integrates a built-in magnet, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the barrel for contactless position sensing. The -N suffix specifies NBR (nitrile) seals, and the standard PT port thread is retained.
| Model | Airtac SC40 Standard Cylinder SC40X80SN |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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. |
| ×80 | 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 80 mm stroke and 628 N push force are well-suited for actuating gates or pushers on conveyor systems, reliably diverting cartons or products at moderate speed.
With the built-in magnet for end-of-stroke sensing, this cylinder is ideal for part clamping in CNC or welding fixtures, confirming clamp engagement before a cycle starts.
The NBR seals and robust tie-rod construction handle dusty agricultural environments, providing consistent actuation for chutes and sorting gates in seed processing equipment.
For applications needing more force, stepping up to the 50 mm bore provides 982 N of push at 0.5 MPa. If a shorter overall length is required, the 32 mm bore offers 402 N. The 80 mm stroke is well within the 1200 mm maximum standard stroke for this bore.
To ensure a proper replacement, match five key points: 40 mm bore, 80 mm stroke, PT1/4 port thread, the basic (no accessory) mounting configuration, and the built-in magnet (-S). This is a tie-rod cylinder, not an ISO 15552 profile, so it is dimensionally shorter and not interchangeable with ISO 15552 cylinders.
Quick checklist
At the standard operating pressure of 0.5 MPa, the cylinder provides 628 N pushing force and 528 N pulling force. At 0.7 MPa, the push force increases to 879 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The -S in the model code indicates a built-in magnet on the piston. This allows you to mount AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's tie-rod slots for precise, contactless position feedback.
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