The AirTAC Airtac SC40 Standard Cylinder SC40X70S is a genuine double-acting standard air cylinder with a Ø40mm bore and 70mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X70S is a double-acting single-rod pneumatic cylinder with a 40 mm bore and 70 mm stroke, delivering 628 N of push force at 0.5 MPa (up to 1130 N at 0.9 MPa). The built-in magnet (-S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for reliable end-of-stroke detection.
This model uses a 16 mm diameter piston rod with an M12x1.25 rod thread and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston smoothly at each end. With a compact body length A of 142 mm, the total extended length is approximately 212 mm, making it a space-efficient choice for automation tasks requiring position feedback.
| Model | Airtac SC40 Standard Cylinder SC40X70S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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. |
| ×70 | 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 and CMSG/DMSG sensors provide precise end-of-stroke confirmation for ejecting small components from a fixture, ensuring the cylinder has fully retracted before the next cycle.
Actuates a diverter gate on a packaging line. The 628 N push force at 0.5 MPa is sufficient for light to medium product diversion, while the sensor confirms gate position for interlocking.
Drives a linear sampling mechanism in a clean, ambient-temperature environment. The magnetic piston allows non-contact position sensing, reducing wear and contamination risks compared to mechanical switches.
Choose the SC40X70S when your application needs position sensing without external brackets—the integrated magnet lets you clamp sensors directly onto the tie-rod barrel. If you require higher force, the 50 mm bore SC50 series provides 982 N at 0.5 MPa. For lighter, faster moves, the 32 mm bore offers 402 N.
When replacing an existing cylinder, match five points: 40 mm bore, 70 mm stroke, PT1/4 ports, the built-in magnet (-S), and the basic (no bracket) mounting. This tie-rod cylinder is shorter than an ISO 15552 profile, so dimensional interchangeability is limited to another AirTAC SC series unit of the same configuration.
Quick checklist
At the standard operating pressure of 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder that is physically shorter than an ISO 15552 profile cylinder. For a direct dimensional replacement, you must match another AirTAC SC tie-rod cylinder with the same 40 mm bore, 70 mm stroke, PT1/4 ports, and built-in magnet.
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