Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S is a genuine double-acting standard air cylinder with a Ø125mm bore and 270mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke270 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S
The AirTAC SC125X270S is a double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). With a 125 mm bore and 270 mm stroke, it features a 32 mm piston rod, M27x2 rod thread, and a 28 mm adjustable air cushion at each end to decelerate the load smoothly.
This model carries the -S suffix, meaning a built-in magnet is fitted directly into the piston. This allows CMSG, DMSG, or EMSG reed and solid-state sensors to clamp onto the barrel for non-contact position sensing, simplifying automation integration. The standard PT1/2 ports and TPU seals handle filtered air from -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 270 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 SC125X270S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×270 | 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 SC125X270S Is Used
Pallet Transfer Systems
The 6136 N push force at 0.5 MPa reliably shifts heavy pallets across roller conveyors. The built-in magnet lets sensors confirm end-of-stroke, coordinating with lift-and-transfer stations.
Heavy Press Guard Actuation
Operates interlock guards on large forming presses. The 28 mm air cushion absorbs the kinetic energy of the heavy guard door, while the -S magnet provides closed-loop position feedback to the safety PLC.
Structural Test Rigs
Applies controlled force cycles up to 11045 N at 0.9 MPa for material fatigue testing. The tie-rod construction allows straightforward maintenance and seal replacement in high-cycle lab environments.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X270S the Right Cylinder?
Choose 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 strokes of 270 mm, the 32 mm rod provides good rigidity, but if the load applies a significant side force, pair the cylinder with an external linear guide or switch to a guided cylinder to protect the rod bearing from bending moments.
When replacing an existing unit, match five points exactly: 125 mm bore, 270 mm stroke, PT1/2 port thread, the built-in magnet (-S), and the basic (no bracket) mounting configuration. The 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 AIRTAC SC125-160 Standard Cylinder SC125X270S FAQ
At 0.7 MPa (7 bar) the SC125 bore generates 8590 N of push force and 5734 N of pull force, based on the official AirTAC thrust table. The maximum operating pressure is 1.0 MPa, yielding 11045 N push.
Yes. The -S suffix in SC125X270S indicates a built-in magnet. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rod tube to detect piston position without any additional brackets or modifications.
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