Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S is a genuine double-acting standard air cylinder with a Ø125mm bore and 280mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke280 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S
The AirTAC SC125X280S is a double-acting pneumatic cylinder with a 125 mm bore and 280 mm stroke, delivering a substantial push force of 6136 N at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the barrel for precise, non-contact position sensing.
Engineered as a robust tie-rod cylinder, the SC125X280S features a 32 mm piston rod with an M27x2 thread, adjustable air cushioning with a 28 mm cushion length, and a PT1/2 port. Its ISO 6430 class design is suited for heavy industrial tasks, with a total extended body length of approximately 483 mm (203 mm body + 280 mm stroke).
Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (approx.) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×280 | 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 AIRTAC SC125-160 Standard Cylinder SC125X280S Is Used
Heavy Material Handling
Ideal for lifting and transferring heavy loads in warehouses, where the 6136 N push force at 0.5 MPa easily manages palletisers and large part manipulators.
Automated Clamping
Provides powerful, consistent clamping force for large workpieces in CNC machining and welding fixtures, with the built-in magnet confirming clamp position.
Press and Forming
Suitable for light press-fit and forming operations, using its high force output to bend, stamp, or assemble heavy-gauge components.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X280S the Right Cylinder?
The SC125 bore provides 6136 N of push force at 0.5 MPa. If your application requires a more compact solution with lower force, the SC100 bore offers 3927 N at the same pressure. For higher force demands, step up to the SC160 bore, which provides 10053 N at 0.5 MPa. Always ensure the cylinder is not subjected to excessive side loads, particularly with this 280 mm stroke; if side forces are present, use an external guide or a guided cylinder to prevent rod bending and premature seal wear.
For a direct replacement, match these five points: 125 mm bore, 280 mm stroke, PT1/2 port thread, the built-in magnet for sensor compatibility, and the basic (no bracket) mounting configuration. This ensures a drop-in fit for another AirTAC SC series 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 AIRTAC SC125-160 Standard Cylinder SC125X280S FAQ
At 0.7 MPa (7 bar), the theoretical push force is 8590 N. The pull force on the retract stroke is 5734 N due to the area of the 32 mm piston rod.
Yes, the -S suffix indicates a built-in magnetic ring on the piston. This allows you to mount AirTAC CMSG, DMSG, or EMSG sensors directly onto the cylinder's tie-rod slots to detect piston position.
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