The AirTAC Airtac SC40 Standard Cylinder SC40X720S is a genuine double-acting standard air cylinder with a Ø40mm bore and 720mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X720S is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration across the full 720 mm stroke, making it suitable for medium-reach linear tasks.
This model features 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 contactless position sensing. The body length A is 142 mm, giving an extended length of approximately 862 mm. Operating pressure is 0.15–1.0 MPa with filtered air, and the standard PT1/4 port and M12x1.25 rod thread ensure straightforward pneumatic connections.
| Model | Airtac SC40 Standard Cylinder SC40X720S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 720 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. |
| ×720 | 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 720 mm stroke and sensor-ready design suit long-reach part diverters on packaging lines, where mid-stroke position confirmation is required for timing.
Use the built-in magnet with CMSG sensors to confirm open/closed status on long-travel jigs, ensuring the 628 N clamping force is applied before a cycle starts.
Operates sliding safety gates or hopper doors with a 720 mm reach, using magnetic sensors to verify full retraction before material flow begins.
For applications needing more force, stepping up to the 50 mm bore SC50 series provides 982 N at 0.5 MPa. For lighter, more compact installations, the 32 mm bore offers 402 N. At 720 mm stroke, the slender 16 mm rod is susceptible to bending under side loads; always guide the load externally or consider a guided cylinder if lateral forces are present. To match this cylinder, verify five points: 40 mm bore, 720 mm stroke, PT1/4 ports, the built-in magnet for sensors, and the basic tie-rod mounting footprint.
Quick checklist
At 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, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix indicates a built-in magnet on the piston. AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors clamp onto the tie-rod barrel to detect position without additional brackets.
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