Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA is a genuine double-acting standard air cylinder with a Ø125mm bore and 300mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke300 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA
The SC125X300FA is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). With a 125 mm bore and a 300 mm stroke, it uses a robust 32 mm piston rod with an M27x2 knuckle thread, making it suitable for heavy linear actuation tasks.
This model is configured with an FA front rectangular flange (part code F-SC125FA) for rigid panel or bulkhead mounting at the rod end. The adjustable air cushion (28 mm length) decelerates the piston smoothly at stroke end, reducing impact stress. As an ISO 6430 class tie-rod cylinder, it is built for demanding industrial environments.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 300 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 SC125X300FA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 SC125X300FA Is Used
Heavy Press & Clamping
The 11045 N thrust at 0.9 MPa makes this cylinder ideal for hydraulic-style clamping fixtures, stamping presses, and heavy assembly jigs requiring high force in a pneumatic format.
Material Handling & Sorting
With a 300 mm stroke and 6136 N of push force, it reliably actuates heavy-duty diverters, pallet stops, and transfer stations on conveyor lines handling bulky or palletized goods.
Industrial Machinery Actuation
The front flange mount and tie-rod construction provide a rigid, serviceable actuator for OEM machinery, including compactors, balers, and large-format cutting or sawing equipment.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X300FA the Right Cylinder?
Choose the SC125 bore when your application requires between 6136 N and 11045 N of force. If your load is lighter, stepping down to the SC100 bore provides 3927 N at 0.5 MPa, which may allow for a smaller, more economical installation. For strokes of 300 mm and above, always evaluate side-load conditions; a 32 mm rod extending 300 mm can be subject to bending moments. If the load is not guided, use external linear guides or switch to a guided cylinder to protect the rod bearing and piston seals.
For a direct replacement, match these five attributes exactly: 125 mm bore, 300 mm stroke, PT port thread, FA front flange mounting, and the absence of a built-in magnet. This ensures dimensional and functional drop-in compatibility with an existing AirTAC SC125X300FA setup.
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 SC125X300FA FAQ
At the standard 0.5 MPa operating pressure, 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 increases to 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
No. The SC125X300FA is a double-acting cylinder that requires continuous air pressure to maintain its position. If pressure is lost or the directional valve is centered, the piston can drift or drop. For load holding, you must add a pilot-operated check valve, an external rod lock, or a mechanical brake.
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