The AirTAC Airtac SC40 Standard Cylinder SC40X740S is a genuine double-acting standard air cylinder with a Ø40mm bore and 740mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X740S is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 40 mm bore with an extended 740 mm stroke. It generates a push force of 628 N at 0.5 MPa and reaches 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
This model includes the factory-installed -S magnet embedded in the piston, enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for contactless position detection. The cylinder uses adjustable air cushioning with a 21 mm cushion length, PT1/4 ports, and an M12x1.25 rod thread, operating reliably from -20 to +70 °C with standard TPU seals.
| Model | Airtac SC40 Standard Cylinder SC40X740S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 740 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. |
| ×740 | 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 740 mm stroke moves components between distant conveyor stations or processing nests. The built-in magnet lets sensors confirm full extend and retract at each end of the long travel.
Drives a dispensing head across a 740 mm linear path on a gantry. Consistent 628 N push force at 0.5 MPa ensures uniform bead application without stalling.
Raises or lowers a light payload platform over a 740 mm vertical stroke. The adjustable air cushion decelerates the mass smoothly at both stroke ends, protecting the end caps.
For applications needing slightly less force, the 32 mm bore SC32 series provides 402 N at 0.5 MPa. If higher force is required, stepping up to the 50 mm bore delivers 982 N at the same pressure. Always match the bore, 740 mm stroke, PT1/4 port thread, and the built-in magnet when replacing an existing unit.
With a 740 mm stroke, the piston rod extends significantly from the front bearing. Any side load, even a small one, can create a bending moment that accelerates rod bearing wear or causes rod buckling. Use an external linear guide rail or a rod-alignment coupler to keep the load path purely axial, or consider a guided cylinder assembly for inherently supported motion.
Quick checklist
At 0.7 MPa operating pressure, the theoretical push force is 879 N and the pull force on the retract stroke is 528 N (accounting for the 16 mm rod area). At the maximum 0.9 MPa, push force rises to 1130 N.
Yes. The -S suffix in SC40X740S designates a built-in magnet in the piston. This allows AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors to clamp directly onto the tie-rod barrel for end-of-stroke or mid-stroke position sensing without external flags.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.