Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S is a genuine double-acting standard air cylinder with a Ø125mm bore and 140mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke140 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S
The SC125X140S is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). Its 140 mm stroke suits medium-travel clamping and pressing tasks, with a 32 mm diameter piston rod providing robust resistance to bending.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be mounted directly on the tie-rod barrel for non-contact position sensing. The adjustable air cushion (28 mm length) decelerates the piston smoothly at end-of-stroke, and the body length A is 203 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 140 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 SC125X140S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×140 | 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 SC125X140S Is Used
Pallet Stop & Transfer
The 6136 N push force at 0.5 MPa reliably raises pallet stops and transfers heavy loads on conveyor lines, with the 140 mm stroke providing ample lift height.
Heavy-Part Clamping
Delivers up to 11045 N of clamping force at 0.9 MPa for securing large weldments or castings in machining fixtures, with sensor confirmation via the built-in magnet.
Press & Forming Assist
Suitable for light press-fit or forming operations requiring a controlled 140 mm advance, where the adjustable cushion protects tooling at the end of the stroke.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X140S the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N (push at 0.5 MPa) and 11045 N (push at 0.9 MPa). If your force requirement is lower, step down to the SC100 bore (3927 N at 0.5 MPa); for higher force, move up to the SC160 (10053 N at 0.5 MPa). For this 140 mm stroke, side loading is typically not a primary concern, but always ensure the load is guided externally if any lateral force is present.
To replace an existing cylinder, match five points: 125 mm bore, 140 mm stroke, PT port thread, the built-in magnet (-S), and the basic mounting configuration. This is an ISO 6430 class tie-rod cylinder, shorter than an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SC125 tie-rod units.
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 SC125X140S FAQ
At 0.5 MPa, push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet, so you can directly clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors onto the barrel to detect piston position without additional brackets.
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