The AirTAC Airtac SC40 Standard Cylinder SC40X80STC 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 SC40X80STC is a double-acting single-rod pneumatic cylinder with an 80 mm stroke, delivering 628 N push force at 0.5 MPa (879 N at 0.7 MPa). Its 16 mm diameter rod and 21 mm adjustable air cushion provide smooth deceleration in a compact tie-rod body with a body length A of just 142 mm.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, plus a TC centre trunnion mount (F-SC40TC, supplied with TCM1 bracket) for pivoting applications. Operating on filtered air from 0.15-1.0 MPa with PT1/4 ports, it suits medium-speed automation up to 800 mm/s.
| Model | Airtac SC40 Standard Cylinder SC40X80STC |
|---|---|
| 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 centre trunnion mount allow the cylinder to pivot as it extends, smoothly diverting small packages or components on a conveyor line. The built-in magnet enables end-of-stroke sensing without external brackets.
With 628 N of clamping force at 0.5 MPa, this cylinder secures workpieces in CNC fixtures or assembly jigs. The adjustable cushion protects the fixture from impact at the end of each cycle.
The TC trunnion mount lets the cylinder body swing, making it ideal for driving a pivoting lever or toggle mechanism in packaging or textile machinery where the rod end follows an arc.
Choose the SC40 when your load needs around 628 N at standard plant pressure; if you need more force, step up to the SC50 (982 N at 0.5 MPa). For lighter, faster moves, the SC32 (402 N) may be a better fit. The 80 mm stroke is well within the 1200 mm max standard stroke for this bore.
When replacing an existing cylinder, match all five points: 40 mm bore, 80 mm stroke, PT1/4 port thread, TC centre trunnion mounting, and the built-in magnet for sensor compatibility. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At 0.7 MPa, push rises to 879 N. The maximum operating force at 0.9 MPa is 1130 N push. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix means this cylinder has a built-in magnet on the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors can be clamped directly onto the barrel to detect piston position without any additional mounting hardware.
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