Airtac AIRTAC SC125-160 Standard Cylinder SC125X280
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X280 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 SC125X280
The AirTAC SC125X280 is a robust double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 32 mm piston rod and M27x2 rod thread, this 125 mm bore actuator is built for heavy linear tasks requiring a 280 mm stroke, fitting well within its 1500 mm maximum standard stroke range.
This ISO 6430 class cylinder features an adjustable pneumatic cushion (28 mm length) at both ends to decelerate the piston smoothly, reducing end-of-stroke impact. The body length A is 203 mm, giving a total extended length of approximately 483 mm. Operating on filtered air from 0.15 to 1.0 MPa, its standard TPU seals suit a temperature range of -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X280 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X280 |
|---|---|
| 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 SC125X280
| 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 SC125X280 Is Used
Pallet Transfer Systems
The 6136 N push force at 0.5 MPa reliably shifts heavy pallets or totes across roller conveyors in automated logistics hubs.
Heavy-Duty Clamping Fixtures
Use the 280 mm stroke and 11045 N max force for securely clamping large weldments or castings during machining or robotic welding.
Baler and Compactor Ejection
Ejects dense material bales from compactors with the high push force and robust 32 mm rod, handling repetitive shock loads effectively.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X280 the Right Cylinder?
Select the SC125 when your application needs the force class between the SC100 (3927 N at 0.5 MPa) and the SC160 (10053 N at 0.5 MPa). For this 280 mm stroke, ensure the rod is not subjected to side loading; if the load path is not perfectly axial, use an external guide rail or a guided cylinder to prevent rod bending and premature bearing wear.
For a direct replacement, match these five points exactly: 125 mm bore, 280 mm stroke, PT port thread, basic mounting (no brackets), and no built-in magnet. This ensures dimensional and performance interchangeability with an existing AirTAC SC125X280 tie-rod 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 SC125X280 FAQ
At 0.7 MPa operating pressure, the SC125 bore generates 8590 N of push force. The pull force at the same pressure is 5734 N, accounting for the 32 mm rod diameter reducing the piston area on the retract side.
This specific SC125X280 model code does not include the '-S' magnet suffix, so it does not have a built-in magnet. CMSG/DMSG/EMSG sensors require the magnet-equipped variant, which would be ordered as SC125X280-S. Without the magnet, the standard tie-rod barrel cannot activate these sensors.
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