Airtac SC40 Standard Cylinder SC40X135
The AirTAC Airtac SC40 Standard Cylinder SC40X135 is a genuine double-acting standard air cylinder with a Ø40mm bore and 135mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke135 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X135
The SC40X135 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a push force of 628 N at 0.5 MPa and up to 1130 N at 0.9 MPa. With a 40 mm bore and 135 mm stroke, it uses a rigid 16 mm diameter piston rod and PT1/4 ports for straightforward pneumatic connections.
This model features a 21 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing impact and noise. The body length A is 142 mm, giving a total extended length of approximately 277 mm. It is a genuine AirTAC unit built for reliable industrial automation tasks.
Airtac SC40 Standard Cylinder SC40X135 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X135 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 135 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SC40 Standard Cylinder SC40X135
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×135 | 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.
Where the Airtac SC40 Standard Cylinder SC40X135 Is Used
Part Rejection
Provides the quick, repeatable push needed to divert non-conforming products off a packaging conveyor line.
Clamping Fixtures
Ideal for light-duty clamping in machining or assembly jigs where consistent holding force is required.
Actuator for Gates
Operates small sliding gates or diverters in material handling chutes, using its 16 mm rod for direct coupling.
Is the Airtac SC40 Standard Cylinder SC40X135 the Right Cylinder?
For applications needing slightly more force, stepping up to the SC50 series provides 982 N of push at 0.5 MPa. If a shorter, more compact cylinder is acceptable, the SC32 delivers 402 N at the same pressure. The 135 mm stroke is well within the 1200 mm maximum standard stroke for this bore size.
When replacing an existing cylinder, match these five points: 40 mm bore, 135 mm stroke, PT1/4 port thread, basic (no mounting accessory), and no magnet. The SC is a tie-rod design, not an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SC40 cylinders of the same configuration.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC40 Standard Cylinder SC40X135 FAQ
At the standard operating pressure of 0.5 MPa, the push force is 628 N. At 0.7 MPa it is 879 N, and the maximum push force at 0.9 MPa is 1130 N. The theoretical force at 1.0 MPa is 128 kgf.
This specific model code does not include the '-S' magnet option, so it is not equipped with a built-in magnetic piston. To use CMSG or DMSG sensors for position feedback, you would need the SC40X135-S variant.
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