
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X450FA 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.
The SC125X450FA is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 450 mm stroke. It generates a substantial push force of 6136 N at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure), making it suitable for heavy-duty clamping, pressing, and lifting tasks. The piston rod measures 32 mm in diameter with an M27x2 thread, and the unit features a 28 mm adjustable air cushion at each end for smooth deceleration.
This model is configured with an FA front rectangular flange (accessory F-SC125FA) for secure panel or bulkhead mounting. It uses standard PT ports (PT1/2), TPU seals for a -20 to +70 °C operating range, and has no built-in magnet. The body length A is 203 mm, giving a total extended length of approximately 653 mm. As a genuine AirTAC component, it provides reliable performance in demanding industrial automation environments.
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X450FA |
|---|---|
| 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.
| 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.
| 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.
The 11045 N force at 0.9 MPa drives bearings or bushings into housings with consistent, controlled pressure in automated assembly cells.
Raises or stops heavy pallets on conveyor lines. The front flange mount (FA) allows rigid attachment to the conveyor frame for stable vertical lifting.
Provides the high clamping force needed to hold large workpieces during welding, bending, or machining operations, resisting movement under heavy tool pressure.
Select the SC125 bore when your application requires a push force between roughly 6136 N and 11045 N. If your load is lighter, stepping down to the SC100 bore (3927 N push at 0.5 MPa) can reduce air consumption and physical size. For higher forces, the SC160 bore provides 10053 N at the same 0.5 MPa pressure.
With a 450 mm stroke, ensure the rod is protected from significant side loads; an external guide or a guided cylinder is recommended to prevent rod bending and premature bearing wear. For direct replacement, match the 125 mm bore, 450 mm stroke, PT1/2 port thread, FA front flange mounting, and the absence of a magnet sensor. This SC model is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
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 AirTAC SC series is a tie-rod cylinder with a shorter overall body length than a comparable ISO 15552 cylinder. It is not dimensionally interchangeable. For a direct replacement, you must match another AirTAC SC tie-rod cylinder with a 125 mm bore, 450 mm stroke, PT1/2 ports, and an FA front flange mount.
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