The AirTAC Airtac SC40 Standard Cylinder SC40X300SFB is a genuine double-acting standard air cylinder with a Ø40mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X300SFB is a double-acting tie-rod 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 300 mm stroke, making it a reliable workhorse for medium-duty linear tasks.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and ships with a rear rectangular flange (FB, part F-SC40FB) for secure end-face mounting. The total body length is 142 mm, giving an extended length of approximately 442 mm.
| Model | Airtac SC40 Standard Cylinder SC40X300SFB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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. |
| ×300 | 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 300 mm stroke and 628 N push force reliably actuate diverter gates on packaging lines, sorting products by weight or barcode at standard pneumatic speeds.
With a built-in magnet for end-of-stroke sensing, this cylinder confirms clamp engagement on CNC jigs, ensuring workpieces are held before machining cycles begin.
The 1130 N force at 0.9 MPa is ideal for low-force press-fit insertion of bearings or bushings, with the rear flange providing a rigid, fixed mounting point.
Choose the SC40 when your application needs up to 628 N at 0.5 MPa. If you require more force, step up to the SC50 which provides 982 N at the same pressure. For lighter, more compact needs, the SC32 offers 402 N. With a 300 mm stroke, ensure side loads are minimal; the 16 mm rod is robust for axial thrust but an external guide or guided cylinder is recommended if off-axis forces are present.
For direct replacement, match five points: 40 mm bore, 300 mm stroke, PT port thread, rear flange FB mount, and the built-in magnet (-S) for sensor compatibility. This tie-rod design is shorter than an ISO 15552 cylinder and is not a dimensional interchange for that standard.
Quick checklist
At the standard operating pressure of 0.5 MPa, the push force is 628 N. At the maximum operating pressure of 0.9 MPa, it increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length (142 mm) than an ISO 15552 profile cylinder. It is not dimensionally interchangeable. For a direct replacement, match the bore, stroke, PT port, FB rear flange mount, and the integrated magnet feature.
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