Airtac SC80 Standard Cylinder SC80X125STC
The AirTAC Airtac SC80 Standard Cylinder SC80X125STC 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 SC80X125STC
The SC80X125STC is an 80 mm bore 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 a 125 mm stroke and a 25 mm diameter piston rod, it fits medium-duty clamping, pressing, and positioning tasks where a compact tie-rod body is preferred.
This configuration includes a built-in magnet (-S) for mounting CMSG/DMSG/EMSG sensors directly on the barrel, and a centre trunnion mount (TC) supplied with the TCM1 bracket for pivoting applications. The adjustable air cushion at each end decelerates the 25 mm rod smoothly, protecting the end caps during high-cycle operation.
Airtac SC80 Standard Cylinder SC80X125STC Technical Specifications
| Model | Airtac SC80 Standard Cylinder SC80X125STC |
|---|---|
| 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 SC80X125STC
| 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 SC80X125STC Is Used
Conveyor Diverters
The 125 mm stroke and centre trunnion mount allow the SC80X125STC to pivot a diverter gate on a packaging line, handling 2513 N of push force at standard line pressure.
Clamping Fixtures
With up to 4523 N of force at 0.9 MPa and magnetic piston sensing, this cylinder confirms clamp engagement in automated welding or machining fixtures.
Material Handling Arms
The TC trunnion mount lets the cylinder swing freely in a lifting or tilting arm. The 25 mm rod and adjustable cushion manage the inertia of a pivoting load smoothly.
Is the Airtac SC80 Standard Cylinder SC80X125STC the Right Cylinder?
Choose the SC80 bore when your load requires between 2513 N and 4523 N of push force. If the force is marginal, stepping up to the SC100 bore provides 3927 N at 0.5 MPa; stepping down to the SC63 bore gives 1559 N. For this 125 mm stroke, the standard tie-rod construction is rigid, but always align the rod axis with the load to avoid side-loading the bearing.
To replace an existing cylinder, match five points: 80 mm bore, 125 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with the F-SC80TC bracket, and the built-in magnet for sensor compatibility. The SC series 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 SC80 Standard Cylinder SC80X125STC 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 reaches 4523 N. The theoretical maximum at 1.0 MPa is 513 kgf.
Yes. The -S suffix in the model code means a magnet is built into the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel to detect end-of-stroke position.
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