Airtac SC80 Standard Cylinder SC80X940
The AirTAC Airtac SC80 Standard Cylinder SC80X940 is a genuine double-acting standard air cylinder with a Ø80mm bore and 940mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke940 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X940
The AirTAC SC80X940 is a double-acting pneumatic cylinder delivering a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa. With an 80 mm bore and a 940 mm stroke, it uses a 25 mm diameter piston rod and M20x1.5 rod thread for robust linear actuation.
This model features a 182 mm body length, resulting in a total extended length of approximately 1122 mm. The adjustable pneumatic cushion (28 mm length) decelerates the piston smoothly at stroke ends, protecting the end caps during high-speed operation. It is a genuine AirTAC tie-rod cylinder built for demanding industrial tasks.
Airtac SC80 Standard Cylinder SC80X940 Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X940 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 940 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (approx.) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC80 Standard Cylinder SC80X940
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×940 | 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 SC80 Standard Cylinder SC80X940 Is Used
Long-Stroke Material Pusher
Provides the 940 mm reach needed to push heavy boxes or pallets completely off a wide conveyor line, with ample force to handle dense loads.
Automated Welding Positioner
Extends a welding torch or fixture deep into a large assembly jig, maintaining stable positioning with its 25 mm rod when guided externally.
Large Gate or Diverter Actuator
Operates a tall material diverter gate or hopper door, using the full 940 mm stroke for complete open/close motion in bulk handling systems.
Is the Airtac SC80 Standard Cylinder SC80X940 the Right Cylinder?
Select the SC80X940 for applications needing around 2500 N of force at standard shop air. If your load requires less force, the SC63 series provides 1559 N at 0.5 MPa in a smaller footprint. For heavier loads, the SC100 series steps up to 3927 N at the same pressure.
For this 940 mm stroke, carefully evaluate side loading. A long, unsupported 25 mm rod can bend under lateral forces, leading to premature bearing wear. Use an external linear guide or switch to a guided cylinder if the load is not perfectly axial. To replace an existing unit, match the 80 mm bore, 940 mm stroke, PT port thread, basic mounting configuration, and ensure the original is an 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 SC80 Standard Cylinder SC80X940 FAQ
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 4523 N. The theoretical maximum force at 1.0 MPa is 513 kgf.
A stroke of 940 mm with a 25 mm rod is susceptible to bending under side loads. You must guide the load externally with a linear rail or rod guide. Never allow the rod to push a mass that is not supported along its axis of motion, as this will damage the rod bearing and seals.
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