The AirTAC Airtac SC Standard Cylinders SC40X450 is a genuine double-acting standard air cylinder with a Ø40mm bore and 450mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X450 is a double-acting tie-rod cylinder with a 40 mm bore and a 450 mm stroke, delivering about 628 N of push force at 0.5 MPa and 879 N at 0.7 MPa. The 16 mm chrome rod and 21 mm adjustable cushions make it a solid choice for mid-force linear motion over a fairly long travel.
With the 142 mm body plus the 450 mm stroke, the extended length is roughly 592 mm. Ports are PT1/4, the rod thread is M12x1.25, and the TPU seal set covers -20 to +70 C with filtered air at 0.15-1.0 MPa. Speed range is 30-800 mm/s.
| Model | Airtac SC Standard Cylinders SC40X450 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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. |
| ×450 | 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 450 mm travel lets the 16 mm rod reach across a conveyor lane to divert cartons, with 628 N of push at 0.5 MPa enough for light packaging loads.
Vertical lifting of small jigs and gates within the 528 N pull capacity at 0.5 MPa; note the load will drop if air is lost, so add a pilot-operated check valve or mechanical lock where hold is required.
Drives a light slide or gate on packaging and assembly machines at up to 800 mm/s, with 21 mm adjustable cushions softening stroke ends.
At 628 N push at 0.5 MPa, the 40 mm bore covers light-to-medium clamping and push duties. Step down to a 32 mm bore (402 N at 0.5 MPa) if force is marginal on paper, or up to a 50 mm bore (982 N at 0.5 MPa) if you need headroom. A 450 mm stroke leaves a long 16 mm rod unsupported, so keep side loads off the rod and use an external guide or a guided cylinder where the load can tilt or bind.
To replace an existing SC40X450, match five points: 40 mm bore, 450 mm stroke, PT1/4 port thread (or G if ordered with the G option), the mounting accessory fitted, and whether a magnet (-S) is built in. This version is basic mount, TPU seals, no magnet.
Quick checklist
At 0.5 MPa it pushes with about 628 N and pulls with about 528 N. At 0.7 MPa push force rises to roughly 879 N, and the theoretical maximum at 1.0 MPa is about 128 kgf. Actual usable force should be derated for friction and speed.
The 450 mm stroke is within the 1200 mm standard range for this bore, but the 16 mm rod is long and slender. Avoid side loads and fit an external guide or a guided cylinder if the load can tilt, or the rod and front bearing will wear prematurely.
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