Airtac SC125-160 Standard Cylinder SC125X440S
The 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the 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 SC125-160 Standard Cylinder SC125X440S Technical Specifications
| Model | 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 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 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 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 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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Covers non-human-caused product damage.
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