Airtac SC80 Standard Cylinder SC80X1250
The AirTAC Airtac SC80 Standard Cylinder SC80X1250 is a genuine double-acting standard air cylinder with a Ø80mm bore and 1250mm stroke, PT3/8 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ80 mm
- Stroke1250 mm
- Port sizePT3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SC80 Standard Cylinder SC80X1250
The AirTAC SC80X1250 is a double-acting tie-rod cylinder delivering a push force of 2513 N at 0.5 MPa and up to 4523 N at 0.9 MPa operating pressure. With an 80 mm bore and a 25 mm diameter piston rod, this model provides a substantial 1250 mm stroke, well within the 1500 mm maximum standard stroke for this bore size.
This cylinder features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing end-of-stroke impact. The body length A is 182 mm, giving a total extended length of approximately 1432 mm. Ports are PT3/8 with an M20x1.5 rod thread, and the standard TPU seals suit operating temperatures from -20 to +70 °C.
Airtac SC80 Standard Cylinder SC80X1250 Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X1250 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 1250 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 SC80X1250
| SC | Standard tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×1250 | 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 SC80X1250 Is Used
Pallet Transfer Systems
The 1250 mm stroke pushes heavy pallets across roller conveyors in automated warehouses, with the 2513 N force at 0.5 MPa easily handling loaded pallet inertia.
Long-Stroke Clamping
Used in woodworking or metal fabrication to clamp large workpieces over a wide bed, the adjustable cushion prevents hammering at the end of the 1250 mm travel.
Grain Chute Diverter
Operates a large diverter gate on a grain elevator. The 80 mm bore provides ample force to shift the gate, while the tie-rod design handles dusty agricultural environments.
Is the Airtac SC80 Standard Cylinder SC80X1250 the Right Cylinder?
Choose the SC80X1250 when your application needs around 2500 N of force at standard plant air pressure. If you require more force, stepping up to the SC100 bore provides 3927 N push at 0.5 MPa. For less force, the SC63 bore delivers 1559 N. At this 1250 mm stroke, the unsupported rod is long; ensure the load is guided externally or use a guided cylinder to prevent rod bending and seal wear from side loads.
For a direct replacement, match five key points: bore (80 mm), stroke (1250 mm), port thread (PT3/8), mounting style (basic), and magnet option (none). This SC series is a tie-rod design 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 SC80 Standard Cylinder SC80X1250 FAQ
At 0.7 MPa (7 bar) operating pressure, the SC80X1250 generates a theoretical push force of 3518 N. The pull force on the retract stroke at the same pressure is 3168 N, accounting for the 25 mm rod diameter.
It is not recommended. At a 1250 mm stroke, the 25 mm diameter rod is susceptible to bending under side loads. Always use an external guide rail or rod support to ensure linear motion and prevent premature seal and bearing failure.
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