Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S is a genuine double-acting standard air cylinder with a Ø125mm bore and 400mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke400 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S
The SC125X400S 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 32 mm diameter piston rod and 28 mm adjustable air cushion are sized for heavy industrial loads, while the 400 mm stroke suits medium-reach clamping, pressing, and material-handling tasks.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. As an ISO 6430 class cylinder, the SC125 series is engineered for robust, repeatable performance in demanding factory environments.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 400 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 SC125X400S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×400 | 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 SC125X400S Is Used
Heavy Press & Clamp
Generates over 1.1 metric tons of force at 0.9 MPa, ideal for hydraulic-style clamping, riveting, and assembly presses where pneumatic control is preferred.
Palletising & Transfer
The 400 mm stroke and 32 mm rod handle the push and lift demands of palletisers, transfer stations, and end-of-line packaging machinery.
Sensor-Monitored Automation
The built-in magnet enables direct mounting of CMSG/DMSG sensors, providing precise end-of-stroke and mid-stroke position feedback for automated work cells.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X400S the Right Cylinder?
For higher force at the same pressure, step up to the SC160 (10053 N push at 0.5 MPa); for a lighter, more compact actuator, the SC100 provides 3927 N. The 400 mm stroke on a 32 mm rod is stable for axial loads, but any significant side force requires an external guide or a guided cylinder to protect the rod bearing from bending stress. When replacing an existing unit, match five points: 125 mm bore, 400 mm stroke, PT port thread, the built-in magnet (-S), and the basic (no bracket) 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 SC125X400S 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.
Yes. The -S suffix denotes a built-in magnet specifically designed for AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors, which clamp directly onto the cylinder's tie-rod barrel for reliable position detection.
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