Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S is a genuine double-acting standard air cylinder with a Ø125mm bore and 440mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke440 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S
The AirTAC SC125X440S is a double-acting single-rod pneumatic cylinder delivering 6136 N push force at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). With a 125 mm bore and a 440 mm stroke, this tie-rod actuator is built for heavy linear motion tasks where position sensing is required, thanks to the integrated magnet that accepts CMSG/DMSG/EMSG sensors directly on the barrel.
The cylinder uses a 32 mm diameter piston rod with an M27x2 thread and PT1/2 ports. Its adjustable air cushion (28 mm length) decelerates the piston smoothly at end-of-travel, protecting the end caps during high-cycle operation. The body length A is 203 mm, making the total extended length approximately 643 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 440 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 SC125X440S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×440 | 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 SC125X440S Is Used
Heavy Part Transfer
Moves large castings or weldments between stations on a conveyor line, using the 6136 N push force at standard plant pressure and magnetic sensors to confirm end-of-stroke.
Industrial Compaction
Drives a compaction plate in waste or recycling equipment, where the 11045 N maximum force at 0.9 MPa crushes material into dense bales.
Automated Clamping
Powers a heavy-duty fixture clamp in a machining center; the built-in magnet allows CMSG sensors to verify the clamp is fully engaged before the spindle starts.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X440S the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N and 11045 N of push force—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 strokes of 300 mm or more like this 440 mm unit, always evaluate side-load conditions: a long unsupported rod can bend under lateral force, so consider an external guide rail or a guided cylinder if the load is not perfectly axial.
To replace an existing cylinder, match five points exactly: 125 mm bore, 440 mm stroke, PT1/2 port thread, the built-in magnet (-S suffix), and the basic mounting style. 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 AIRTAC SC125-160 Standard Cylinder SC125X440S FAQ
At 0.7 MPa (7 bar) supply pressure, the push force is 8590 N. The pull force on the retract stroke is 5734 N at the same 0.5 MPa pressure due to the 32 mm rod reducing the piston area on the rod side.
Yes. The -S suffix in the model code means it has a built-in magnet. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods to detect piston position without any additional brackets.
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