Airtac SC40 Standard Cylinder SC40X65
The AirTAC Airtac SC40 Standard Cylinder SC40X65 is a genuine double-acting standard air cylinder with a Ø40mm bore and 65mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke65 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X65
The SC40X65 is a compact 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 16 mm piston rod provide a balanced force-to-size ratio for general automation tasks, while the 21 mm adjustable air cushion at each end decelerates the piston smoothly to reduce end-of-stroke impact.
With a 65 mm stroke and a body length A of just 142 mm, this cylinder fits neatly into space-constrained pick-and-place or clamping fixtures. The standard PT1/4 ports and M12x1.25 rod thread make pneumatic connections and tooling attachment straightforward.
Airtac SC40 Standard Cylinder SC40X65 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X65 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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 SC40X65
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SC40X65 Is Used
Component Clamping
The 628 N push force at 0.5 MPa is ideal for securely holding workpieces in CNC fixtures or welding jigs without distorting the part.
Part Stops & Diverters
The 65 mm stroke provides a crisp, short-throw motion for stopping or diverting small packages and components on a conveyor line.
Press-Fit Assembly
Delivers up to 1130 N at 0.9 MPa for light press-fit operations, inserting bearings, bushings, or pins with controlled, repeatable force.
Is the Airtac SC40 Standard Cylinder SC40X65 the Right Cylinder?
Choose the SC40X65 when your application needs roughly 630 N of force at standard shop air. If you require more force, stepping up to the SC50 bore provides 982 N at 0.5 MPa; if you can accept less force and need a lighter, more compact unit, the SC32 bore offers 402 N. For strokes of 300 mm or longer on a 16 mm rod, consider an external guide or a guided cylinder to protect the rod bearing from side loads.
To replace an existing SC40X65, match five points: 40 mm bore, 65 mm stroke, PT1/4 port thread, the basic (no bracket) mounting style, and the absence of a magnet. This ensures dimensional and performance interchangeability with another AirTAC SC tie-rod cylinder.
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 SC40X65 FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder and is shorter in overall length than a comparable ISO 15552 profile cylinder. It is not dimensionally interchangeable. It directly replaces another AirTAC SC40 cylinder with the same stroke, port thread, and mounting.
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