Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S is a genuine double-acting standard air cylinder with a Ø125mm bore and 320mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke320 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S
The AirTAC SC125X320S is a double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa, scaling to 11045 N at the maximum operating pressure of 0.9 MPa. Its 32 mm diameter piston rod and 28 mm adjustable air cushion are engineered for heavy-duty linear tasks, providing smooth deceleration even under substantial inertial loads.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for precise, non-contact position feedback. With a body length of 203 mm and a total extended length of approximately 523 mm, it fits into machinery where a robust, sensor-ready actuator is required without adding external flag brackets.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 320 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 SC125X320S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×320 | 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 SC125X320S Is Used
Heavy Part Clamping
The 11045 N force at 0.9 MPa securely clamps large weldments or castings in machining centres, with the magnetic piston enabling clamp/unclamp verification via barrel-mounted sensors.
Pallet Stop & Lift
Deploys a robust stop or lift mechanism on heavy-duty pallet conveyors. The adjustable cushion absorbs the impact of a 125 mm bore piston moving at up to 500 mm/s, protecting the conveyor structure.
Baler & Compactor Ejection
Provides the sustained push force needed to eject compacted material bales. The built-in magnet allows end-of-stroke sensing to confirm full ejection before the platen retracts.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X320S the Right Cylinder?
Select the SC125 bore when your application requires between 6136 N and 11045 N of pneumatic force. For a lighter load, stepping down to the SC100 bore provides 3927 N at 0.5 MPa, reducing air consumption. For higher force demands, the SC160 bore offers 10053 N at the same pressure. This 320 mm stroke is within the 1500 mm maximum standard stroke for the 125 mm bore.
For strokes exceeding 300 mm, ensure the rod is not subjected to side loading; the 32 mm rod can bend under lateral force when fully extended. Use an external linear guide or a guided cylinder to absorb transverse loads. When replacing an existing cylinder, match five points: 125 mm bore, 320 mm stroke, PT port thread, the built-in magnet (-S suffix), and the basic (footless) mounting configuration.
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 SC125X320S FAQ
At the standard 0.5 MPa operating pressure, the push force is 6136 N and the pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
Yes. The -S suffix in SC125X320S designates a built-in magnetic piston. This allows AirTAC CMSG, DMSG, or EMSG sensors to be clamped directly onto the cylinder barrel's sensor groove for reliable, non-contact end-of-stroke or mid-stroke position sensing.
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