Airtac AIRTAC SC125-160 Standard Cylinder SC125X450SFA
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X450SFA 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 SC125X450SFA
The AirTAC SC125X450SFA is a double-acting single-rod pneumatic cylinder built on a robust tie-rod design, delivering a push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 125 mm bore and a 450 mm stroke, this model falls within the ISO 6430 class for larger cylinders, featuring a 32 mm piston rod with an M27x2 knuckle thread and a 28 mm adjustable air cushion to decelerate end-of-stroke impacts smoothly.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors, and a front rectangular flange (FA, part F-SC125FA) for secure panel or bulkhead mounting. The standard PT1/2 ports and TPU seals provide reliable operation in standard temperature environments from -20 to +70 °C, making it a genuine AirTAC solution for demanding linear motion tasks.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X450SFA Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X450SFA |
|---|---|
| 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 SC125X450SFA
| 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 SC125X450SFA Is Used
Heavy Press & Clamping
Generates up to 11045 N of force at 0.9 MPa, ideal for powerful pneumatic presses, assembly fixtures, and material clamping systems requiring a compact tie-rod cylinder.
Conveyor Divert & Lift
The 450 mm stroke and front flange mount suit conveyor diverter gates or lift-and-transfer stations where the cylinder body is fixed to a bulkhead and the rod pushes a heavy load.
Sensor-Controlled Automation
The integrated magnet allows CMSG/DMSG sensors to provide precise end-of-stroke or mid-stroke position feedback to a PLC, essential for automated material handling sequences.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X450SFA the Right Cylinder?
Select the SC125X450SFA when your application requires approximately 6000 N of force at standard plant pressure. If your load is lighter, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa, saving space and air consumption. For heavier demands, the SC160 bore provides 10053 N at the same pressure.
At a 450 mm stroke, side-load management is critical. The 32 mm rod on this 125 mm bore cylinder can experience bending moments if the load is not guided externally. Always use an external guide rail or rod-alignment coupler to prevent bearing wear and ensure long seal life. For replacement, match five key points: 125 mm bore, 450 mm stroke, PT port thread, FA front flange mounting, and the -S magnet for sensor compatibility.
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 SC125X450SFA 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, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix in the model code indicates a built-in magnet is installed in the piston. This allows you to clamp AirTAC CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel to detect piston position without any additional brackets.
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