Airtac SC80 Standard Cylinder SC80X1250STC
The AirTAC Airtac SC80 Standard Cylinder SC80X1250STC 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 SC80X1250STC
The SC80X1250STC is a double-acting AirTAC SC series tie-rod cylinder delivering 2513 N of push force at 0.5 MPa and up to 4523 N at the 0.9 MPa maximum operating pressure. With an 80 mm bore, 25 mm diameter piston rod, and a long 1250 mm stroke, it generates substantial force for heavy linear tasks while the 28 mm adjustable air cushion at each end decelerates the piston smoothly to protect end-cap components.
This specific model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (TC suffix) supplied with the TCM1 bracket for pivoting applications. The body length A is 182 mm, making the total extended length approximately 1432 mm. The standard PT1/8 port and M20x1.5 rod thread ensure straightforward pneumatic connections.
Airtac SC80 Standard Cylinder SC80X1250STC Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X1250STC |
|---|---|
| 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 SC80X1250STC
| 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 SC80X1250STC Is Used
Long-Stroke Material Transfer
The 1250 mm stroke and centre trunnion mount allow this cylinder to pivot while pushing heavy pallets or components across a wide transfer station, with magnetic sensors confirming end-of-travel.
Pivoting Clamp & Weld Fixtures
Ideal for large welding jigs that need to swing a heavy clamp arm into place. The trunnion mount handles the pivoting action, and the 4523 N max force ensures a secure hold.
Automated Diverter Gates
Used on high-capacity chutes or conveyors to divert product flow. The long stroke provides full gate articulation, while the adjustable cushioning prevents hard stops under high-speed cycling.
Is the Airtac SC80 Standard Cylinder SC80X1250STC the Right Cylinder?
When specifying, first verify the 80 mm bore's 2513 N force at 0.5 MPa meets your load requirement. If you need more force, stepping up to the 100 mm bore provides 3927 N; for a lighter, more compact solution, the 63 mm bore offers 1559 N. For this 1250 mm stroke, side-load management is critical—an unsupported 25 mm rod at full extension is vulnerable to bending under lateral force. Always use an external guide or a self-guided tooling plate.
For a drop-in replacement, match five key points: 80 mm bore, 1250 mm stroke, PT1/8 port thread, centre trunnion (TC) mounting with the F-SC80TC bracket, and the built-in magnet for sensor compatibility. This is a tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SC series 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 SC80X1250STC FAQ
At the standard 0.5 MPa operating pressure, the theoretical 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 at 1.0 MPa is 513 kgf.
No. The SC80X1250STC is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. The adjustable air cushion only decelerates the piston at the stroke end to reduce impact; it is not a locking or holding brake. For load-holding applications, you must add an external rod lock or a pilot-operated check valve.
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