The AirTAC Airtac SC Standard Cylinders SC40X35SG is a genuine double-acting standard air cylinder with a Ø40mm bore and 35mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X35SG is a double-acting tie-rod cylinder with G1/4 BSPP parallel ports, so it seals on a bonded face washer rather than the thread itself - the plumbing standard used on most European and Asian OEM manifolds. Its 40 mm bore delivers about 628 N at 0.5 MPa extending and 528 N retracting, and the short 35 mm stroke keeps the overall footprint tight: roughly 177 mm extended (142 mm body length A plus stroke). Because the 35 mm stroke sits between the 25 mm and 50 mm catalog steps, it is produced as a made-to-order stroke - order it by exact number and confirm the lead time from datasheet. The built-in -S magnet lets you mount CMSG, DMSG or EMSG reed sensors anywhere along the barrel, so end-of-stroke or mid-position signals are available without external brackets. A 16 mm chrome rod and 21 mm adjustable cushions round out the spec.
| Model | Airtac SC Standard Cylinders SC40X35SG |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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. |
| ×35 | 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.
A 628 N push at 0.5 MPa (1130 N at 0.9 MPa) over just 35 mm is well suited to pressing small bushings or dowel pins into aluminium housings on an assembly bench, with the magnet confirming full seat each cycle.
On a machining fixture the short 35 mm throw clamps a located part fast without wasting cycle time over a long stroke, and the G1/4 BSPP ports connect directly to standard EU-spec manifold plates.
The gentle 528 N retract force and 30-800 mm/s speed range suit light-duty stoppering or capping of vials and sample tubes, with switch sensing via the built-in magnet at both ends of the short stroke.
Size both ways before ordering: the next bore down, SC32, gives only about 402 N at 0.5 MPa, while the next bore up, SC50, jumps to roughly 982 N - so this 40 mm bore is the right middle step if your 35 mm stroke press or clamp needs the 628 N class with margin to 1130 N at 0.9 MPa. Since this is the G-port version, match it to your existing G1/4 BSPP fittings and manifold; if your plant runs NPT pipe instead, order the NPT variant rather than adapting with reducers, because the parallel G thread relies on a face washer seal and a tapered NPT fitting will not seal correctly on it. For replacement matching, confirm five points: 40 mm bore, 35 mm stroke, G (BSPP) port thread, mounting accessory (F-SC40LB, FA, FB, CA, CB, TC or TCM1), and the -S magnet. Note again that the 35 mm stroke is non-standard and built to order. No external guide is needed at this very short stroke.
Quick checklist
At 0.5 MPa the 40 mm bore pushes with about 628 N and pulls with about 528 N. At 0.7 MPa push force reaches roughly 879 N, and at the 0.9 MPa operating ceiling about 1130 N. The theoretical maximum is 128 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa with a 1.5 MPa proof pressure.
The trailing G means G1/4 BSPP parallel ports, which seal on a bonded face washer; the plain model uses PT (Rc) tapered ports that seal on the thread. Choose SG when your fittings, hoses or manifold are already BSPP - typical on European and many Asian OEM lines. To swap an existing SC drop-for-match, align bore (40), stroke (35, non-standard/to-order), port thread (G), mounting accessory and the -S magnet; the SC is a tie-rod cylinder, not ISO 15552 interchangeable.
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