The AirTAC Airtac SC40 Standard Cylinder SC40X330 is a genuine double-acting standard air cylinder with a Ø40mm bore and 330mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X330 is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 330 mm stroke suit mid-reach linear tasks where a compact body length of 142 mm plus stroke fits the machine envelope.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston smoothly at end-of-travel, reducing impact noise and wear. Standard TPU seals cover a -20 to +70 °C operating range.
| Model | Airtac SC40 Standard Cylinder SC40X330 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 330 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. |
| ×330 | 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 330 mm stroke pushes diverters or gates across a conveyor line, routing cartons by weight or barcode at moderate speed.
Provides 628 N of holding force for jigs and assembly fixtures, clamping workpieces during drilling, welding, or bonding operations.
Operates louvres or dampers in agricultural ventilation ducts, with a stroke length suited to full-open/full-close modulation.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa. If your load exceeds 800 N, step up to the SC50 (982 N at 0.5 MPa); for lighter, faster cycling under 400 N, the SC32 (402 N) may reduce air consumption. For this 330 mm stroke, ensure the rod is not subjected to side loads—use an external linear guide or a guided cylinder if the load is not perfectly axial, as the 16 mm rod can bend under off-axis forces.
For direct replacement, match five points: 40 mm bore, 330 mm stroke, PT1/4 port thread, basic (no accessory) mounting, and no magnet. This SC40X330 is a genuine AirTAC tie-rod cylinder, not an ISO 15552 profile unit, so it will only drop into mounts designed for the SC series.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 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.
No. The SC40 is a tie-rod cylinder with a shorter body length (142 mm A-dimension) than an ISO 15552 cylinder of the same bore. It is not dimensionally interchangeable. Only use it to replace another AirTAC SC40 cylinder with matching stroke, port, and mounting.
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