Airtac SC125-160 Standard Cylinder SC125X270S
The 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the 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 SC125-160 Standard Cylinder SC125X270S Technical Specifications
| Model | 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 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 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 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 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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