Airtac SC80 Standard Cylinder SC80X125N
The AirTAC Airtac SC80 Standard Cylinder SC80X125N is a genuine double-acting standard air cylinder with a Ø80mm bore and 125mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke125 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X125N
The SC80X125N is an 80 mm bore double-acting tie-rod cylinder with a 125 mm standard stroke, fitted with NBR (nitrile) seals for general-purpose pneumatic service. It produces 2513 N of push force and 2268 N of pull force when supplied with 0.5 MPa air, scaling to 4523 N push at the maximum operating pressure of 0.9 MPa.
This model features a 25 mm diameter piston rod with M20x1.5 male threads and PT1/8 supply ports. The body length A is 182 mm, giving a total extended length of approximately 307 mm. An adjustable air cushion at each end, with a cushion length of 28 mm, decelerates the piston to reduce end-of-stroke impact.
Airtac SC80 Standard Cylinder SC80X125N Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X125N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 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 SC80X125N
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SC80X125N Is Used
Package Diverter
Actuates a diverter gate on a medium-speed conveyor line, pushing cartons onto a spur. The 125 mm stroke provides enough travel for a clean lane change, and the 2513 N force at 0.5 MPa handles back-pressure from accumulated packages.
Clamping Fixture
Powers a weldment clamping arm in a fabrication cell. The 80 mm bore delivers a firm, non-deforming hold on steel assemblies during tack welding, with NBR seals tolerating trace shop air contaminants.
Grain Gate Actuator
Opens and closes a slide gate on a grain hopper or seed treater. The 125 mm stroke fully retracts the gate blade, and the NBR seals are a cost-effective choice for the ambient, non-aggressive dust environment.
Is the Airtac SC80 Standard Cylinder SC80X125N the Right Cylinder?
This 80 mm bore cylinder suits mid-range force requirements. If the application needs less force, stepping down to the 63 mm bore (1559 N push at 0.5 MPa) can reduce air consumption and physical size. For higher force, the 100 mm bore provides 3927 N push at the same 0.5 MPa pressure.
For this 125 mm stroke, side loading is typically manageable with a rigidly guided load, but always avoid direct radial force on the rod. When replacing an existing cylinder, match five key points: 80 mm bore, 125 mm stroke, PT port thread, basic (no bracket) mounting, and no magnet. The NBR seal material must also be confirmed for chemical compatibility.
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 SC80X125N FAQ
At 0.5 MPa (5 bar), the push force is 2513 N and the pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, push force increases to 4523 N. The theoretical maximum force at 1.0 MPa is 513 kgf (5026 N push).
Yes, dimensionally and functionally it is a direct replacement. The NBR (nitrile) seal offers good wear resistance and is compatible with many oils, but its low-temperature limit is higher than TPU. Verify the operating temperature range of -20 to +70 °C and chemical exposure against your application before swapping seal materials.
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