Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S is a genuine double-acting standard air cylinder with a Ø125mm bore and 450mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke450 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S
The SC125X450S is a double-acting pneumatic cylinder delivering 6136 N of push force and 5734 N of pull force at 0.5 MPa. With a 125 mm bore and a 450 mm stroke, it handles heavy linear actuation tasks while the built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection.
This model features a 32 mm piston rod with M27x2 male threads and PT1/2 ports. The adjustable air cushion (28 mm length) decelerates the piston smoothly at each end, reducing impact noise and wear. As a genuine AirTAC tie-rod cylinder, it is shorter than an equivalent ISO 15552 cylinder and belongs to the ISO 6430 class for large bores.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 450 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 SC125X450S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×450 | 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 SC125X450S Is Used
Pallet Transfer Systems
Moves heavy pallets between conveyor lanes. The 6136 N push force at 0.5 MPa easily shifts loaded pallets, while the built-in magnet provides sensor feedback to the PLC for precise transfer sequencing.
Heavy-Duty Clamping Fixtures
Applies consistent clamping force on large weldments or machined castings. The adjustable cushion protects the fixture from shock at the end of the 450 mm stroke, and the tie-rod construction allows easy maintenance in harsh environments.
Baler & Compactor Ejection Rams
Ejects compacted material bales with up to 11045 N of force at 0.9 MPa. The 32 mm rod resists buckling under high compressive loads, and the magnetic piston enables reliable full-extension confirmation before the next cycle starts.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X450S the Right Cylinder?
Select the SC125X450S when your application needs roughly 6100 N of force at standard plant air pressure. If you require a more compact installation with slightly lower force, stepping down to the 100 mm bore (3927 N at 0.5 MPa) may be suitable; for even higher force, the 160 mm bore provides 10053 N at the same pressure. Always match the replacement cylinder on all five key points: 125 mm bore, 450 mm stroke, PT port thread, the built-in magnet (-S suffix), and the basic mount configuration.
At 450 mm of stroke, the 32 mm rod is robust, but any significant side load can cause rod bending or bearing wear. For applications where the load is not guided externally, consider adding an external linear guide or switching to a guided cylinder assembly to protect the rod and seals over millions of cycles.
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 SC125X450S FAQ
At 0.5 MPa, the cylinder produces 6136 N pushing and 5734 N pulling. At 0.7 MPa, push force rises to 8590 N, and at the maximum operating pressure of 0.9 MPa, it reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf. Always size the cylinder based on the pressure available in your circuit.
Yes. The -S suffix indicates a built-in magnet in the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors clamp directly onto the tie-rod barrel. Without the -S option, the standard piston has no magnet and these sensors will not detect position.
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