Airtac SC40 Standard Cylinder SC40X300
The AirTAC Airtac SC40 Standard Cylinder SC40X300 is a genuine double-acting standard air cylinder with a Ø40mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke300 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X300
The SC40X300 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 300 mm stroke suits medium-reach clamping, pressing, and material-transfer tasks where a compact tie-rod body is preferred.
Built with a 16 mm diameter piston rod and PT1/4 ports, the cylinder includes an adjustable air cushion (21 mm length) to decelerate the piston smoothly at end-of-stroke. The body length A is 142 mm, giving an extended length of approximately 442 mm. This model uses standard TPU seals for a -20 to +70 °C working range.
Airtac SC40 Standard Cylinder SC40X300 Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X300 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 SC40X300
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 SC40X300 Is Used
Part Transfer
Moves components between conveyor lanes or indexing stations with a 300 mm linear stroke, providing consistent push force for reliable positioning.
Light Pressing
Applies up to 1130 N of force at 0.9 MPa for light assembly pressing, bearing insertion, or label application in semi-automated work cells.
Clamping Fixtures
Powers welding or machining fixtures where a 300 mm reach is needed to clamp workpieces securely before the cycle starts.
Is the Airtac SC40 Standard Cylinder SC40X300 the Right Cylinder?
For applications needing more force, the 50 mm bore SC50 series steps up to 982 N push at 0.5 MPa. If a shorter, lighter cylinder is sufficient, the 32 mm bore SC32 provides 402 N at the same pressure. At a 300 mm stroke, ensure the rod is not subjected to significant side loads; if lateral forces are present, use an external guide rail or a guided cylinder to prevent rod bending and premature seal wear.
To match this cylinder for a replacement, confirm five points: 40 mm bore, 300 mm stroke, PT1/4 port thread, basic mount (no accessory bracket), and no built-in magnet. Any AirTAC SC40 with the same configuration will be a direct fit.
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 SC40X300 FAQ
At 0.5 MPa the cylinder pushes with 628 N and pulls with 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. These values assume clean, filtered air at the rated pressure.
Yes, provided the existing cylinder has a 40 mm bore, 300 mm stroke, PT1/4 ports, and a basic mount. The SC series is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders. Always match bore, stroke, port thread, mounting, and magnet option.
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