Airtac SC40 Standard Cylinder SC40X115H
The AirTAC Airtac SC40 Standard Cylinder SC40X115H is a genuine double-acting standard air cylinder with a Ø40mm bore and 115mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke115 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X115H
The SC40X115H is a double-acting pneumatic cylinder with a 40 mm bore and 115 mm stroke, built with high-temperature Viton (FKM) seals that extend the operating range from 0 to +150 °C. This makes it suitable for autoclaves, foundries, and hot-end packaging machinery where standard polyurethane seals would degrade. At 0.5 MPa it generates 628 N pushing force and 528 N pulling force, rising to 1130 N push at 0.9 MPa.
The cylinder uses a 16 mm diameter piston rod with an M12x1.25 male thread and PT1/4 ports. Its tie-rod construction yields a compact body length A of 142 mm, giving a total extended length of approximately 257 mm. The adjustable air cushion at each end is 21 mm long, providing smooth deceleration without any mechanical locking function.
Airtac SC40 Standard Cylinder SC40X115H Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X115H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 SC40X115H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SC40X115H Is Used
High-Temperature Actuation
Viton seals allow the SC40X115H to operate continuously in ambient temperatures up to 150°C, making it ideal for clamping, ejecting, or diverting parts in ovens, thermoforming machines, and autoclave doors.
Material Handling in Harsh Environments
With 628 N of push force at standard shop air, this cylinder reliably pushes or lifts components in hot, chemically aggressive areas where NBR or TPU seals would fail prematurely.
Hot-End Packaging & Sorting
The 115 mm stroke and high-temperature rating suit diverters and gates on conveyors moving hot-sealed packages, where the cylinder must withstand radiated heat without losing sealing integrity.
Is the Airtac SC40 Standard Cylinder SC40X115H the Right Cylinder?
For applications requiring more force, stepping up to the 50 mm bore SC50 series provides 982 N push at 0.5 MPa. If a shorter, lighter cylinder is acceptable, the SC32 series delivers 402 N at the same pressure. When replacing an existing unit, match five points exactly: 40 mm bore, 115 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and the Viton seal designation (H suffix). The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC40X115H FAQ
At 0.7 MPa operating pressure, the theoretical pushing force is 879 N and the pulling force is 528 N (the pull force value at 0.5 MPa is provided for reference; for an exact pull force at 0.7 MPa, confirm from the full datasheet). At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N.
No. The SC40X115H is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is lost or the directional valve is centered, the piston rod can drift or drop. For load-holding applications, you must add an external rod brake, a pilot-operated check valve, or a mechanical lock.
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