Airtac SC40 Standard Cylinder SC40X440
The AirTAC Airtac SC40 Standard Cylinder SC40X440 is a genuine double-acting standard air cylinder with a Ø40mm bore and 440mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke440 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X440
The SC40X440 is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at the 0.9 MPa maximum operating pressure). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-stroke automation tasks.
With a body length A of 142 mm, this 440 mm stroke model extends to a total length of approximately 582 mm. The PT1/4 port and M12x1.25 rod thread suit standard pneumatic fittings, making it a direct replacement for any existing AirTAC SC40X440 cylinder.
Airtac SC40 Standard Cylinder SC40X440 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X440 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 440 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 SC40X440
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×440 | 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 SC40X440 Is Used
Part Transfer
Moves components between conveyor lanes or indexing tables. The 440 mm stroke bridges moderate gaps, and 628 N push force handles typical workpiece pallets.
Clamping & Holding
Applies consistent clamping pressure in woodworking or light metal fabrication jigs. The adjustable cushion prevents hammering at the end of the 440 mm travel.
Bin Pushing
Pushes totes or bins off a gravity roller lane onto a takeaway conveyor. The tie-rod construction handles repetitive impact cycles in distribution centres.
Is the Airtac SC40 Standard Cylinder SC40X440 the Right Cylinder?
The 40 mm bore sits between the compact 32 mm (402 N at 0.5 MPa) and the larger 50 mm (982 N at 0.5 MPa). If your load requires more force, stepping up to the SC50 reduces cycle time; for lighter, faster applications, the SC32 offers a smaller footprint. At 440 mm stroke, the rod is well-supported within standard limits, but avoid direct side loading—use an external linear guide if the load is not purely axial.
For a correct replacement, match five points: 40 mm bore, 440 mm stroke, PT1/4 port thread, basic mounting (no brackets), and no magnet. This model uses the default TPU seal and PT thread.
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 SC40X440 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 reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
This basic model (SC40X440) ships without mounting accessories. You can order a rear single clevis (F-SC40CA) or rear double clevis (F-SC40CB) separately and attach it to the cap. The mounting threads are standard on all SC cylinders.
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