The AirTAC Airtac SC40 Standard Cylinder SC40X125SH is a genuine double-acting standard air cylinder with a Ø40mm bore and 125mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X125SH is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 125 mm stroke suits medium-reach clamping, pressing, and sorting tasks where heat resistance is essential.
This model carries the -S magnet option for barrel-mounted CMSG/DMSG/EMSG sensors and the -H suffix specifying Viton (FKM) seals. The 16 mm diameter rod and PT1/4 port provide solid flow, while the operating temperature range shifts to 0 to +150 °C, making it suitable for autoclaves, foundries, or engine-bay test rigs.
| Model | Airtac SC40 Standard Cylinder SC40X125SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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. |
| ×125 | 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.
Viton seals allow continuous operation up to 150°C, making the SC40X125SH ideal for welding fixtures, autoclave doors, and hot-melt glue stations where standard seals would degrade.
The built-in magnet accepts CMSG/DMSG sensors to confirm end-of-stroke position. Use it on high-speed sorters and pick-and-place units that require cycle verification to a PLC.
FKM seals resist aggressive cleaning agents and elevated sterilization temperatures, suiting the SC40X125SH for pharmaceutical handling, lab automation, and chemical dosing systems.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa. If your load exceeds 879 N at 0.7 MPa, step up to the SC50 (982 N at 0.5 MPa) for extra margin. For lighter, faster cycling below 402 N, the SC32 may reduce air consumption.
To replace an existing cylinder, match five points: 40 mm bore, 125 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the Viton seal (-H). The SC is a tie-rod design, not an ISO 15552 profile, so confirm body length A of 142 mm plus stroke fits your machine envelope.
Quick checklist
At 0.7 MPa (7 bar) the 40 mm bore generates 879 N of push force and 528 N of pull force on the retract stroke. The maximum operating pressure is 1.0 MPa, yielding 1130 N push.
No. The standard TPU seal is rated for -20 to +70 °C and will fail prematurely at 120°C. You must specify the -H suffix (Viton/FKM) as in the SC40X125SH to get the 0 to +150 °C temperature range.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.