The AirTAC Airtac SC40 Standard Cylinder SC40X300STC 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 SC40X300STC is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 300 mm stroke suit medium-force actuation where a compact, tie-rod design is preferred over bulkier ISO 15552 profiles.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and a TC centre trunnion mount (supplied with TCM1 bracket, part F-SC40TC) for pivoting applications. The 16 mm diameter rod and 21 mm air cushion ensure smooth deceleration, with a body length A of 142 mm.
| Model | Airtac SC40 Standard Cylinder SC40X300STC |
|---|---|
| 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 trunnion mount allow the cylinder to pivot a diverter gate on a conveyor line, directing packages between lanes with the 628 N push force.
Used in welding or assembly jigs where the TC mount lets the cylinder swing into position, applying 1130 N of clamping force at 0.9 MPa to hold workpieces securely.
Operates a discharge door on a seed or grain hopper. The trunnion pivot accommodates the door's arc motion, and the magnet sensors confirm open/closed status.
Choose the SC40 when 628 N at 0.5 MPa meets your load requirement. If you need more force, step up to the SC50 bore (982 N at 0.5 MPa); for a lighter, more compact solution, the SC32 offers 402 N. At 300 mm stroke, ensure the rod is not subjected to high side loads—consider an external linear guide or a guided cylinder if bending moments are present.
For drop-in replacement, match five points: 40 mm bore, 300 mm stroke, PT port thread, TC centre trunnion mounting with magnet (-S suffix), and the SC tie-rod body style. This cylinder is shorter than an ISO 15552 unit and is not dimensionally interchangeable with that standard.
Quick checklist
At 0.5 MPa, it provides 628 N pushing and 528 N pulling. At the maximum operating pressure of 0.9 MPa, the pushing force increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder that is shorter in overall length than an equivalent ISO 15552 profile cylinder. It is not dimensionally interchangeable. Replace only with another AirTAC SC series cylinder matching bore, stroke, port thread, and TC trunnion mount.
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