Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S is a genuine double-acting standard air cylinder with a Ø125mm bore and 350mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke350 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S
The SC125X350S is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). With a 32 mm diameter piston rod and a 350 mm stroke, it provides a robust linear motion solution for medium-to-heavy industrial tasks.
This model features a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The adjustable air cushion (28 mm length) decelerates the piston smoothly, reducing end-cap impact and noise in high-cycle applications.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 350 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 SC125X350S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×350 | 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 SC125X350S Is Used
Material Handling & Sorting
Actuates diverter gates and pusher arms on wide conveyor lines. The 350 mm stroke provides the reach needed to move packages across belt widths, while the built-in magnet enables sensor-based sorting confirmation.
Heavy Press & Clamping Fixtures
Delivers up to 11045 N of clamping force for welding jigs and assembly presses. The adjustable cushion protects tooling from shock at the end of the 350 mm stroke, and the magnet signals clamp engagement to the PLC.
Industrial Gate & Damper Actuation
Powers slide gates or air dampers in bulk processing. The 125 mm bore provides the force to shift heavy metal plates, and the -S magnet option allows operators to verify the gate is fully open or closed remotely.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X350S the Right Cylinder?
Select the SC125 bore when your application requires between 6136 N and 11045 N of thrust. If your load is lighter, stepping down to the SC100 bore (3927 N at 0.5 MPa) can reduce air consumption and physical size. For heavier loads, consider the SC160 bore (10053 N at 0.5 MPa).
At a 350 mm stroke, ensure side loads are managed; a 32 mm rod is robust, but long unsupported strokes can create a bending moment. For applications with significant lateral force, use an external guide rail or a guided cylinder to protect the rod bearing and seals. When replacing an existing cylinder, match five key points: 125 mm bore, 350 mm stroke, PT port thread, the basic mounting configuration, and the presence of a magnet for sensors.
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 SC125X350S FAQ
At 0.5 MPa, 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 reaches 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet on the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the cylinder's tie-rod barrel to detect piston position without additional brackets.
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