Airtac AIRTAC SC125-160 Standard Cylinder SC125X245
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X245 is a genuine double-acting standard air cylinder with a Ø125mm bore and 245mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke245 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X245
The SC125X245 is a robust double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 245 mm stroke. At 0.5 MPa operating pressure, it generates a substantial 6136 N of push force and 5734 N on the pull stroke, making it suitable for medium-to-heavy industrial actuation tasks.
This model features a 32 mm diameter piston rod with an M27x2 male knuckle thread and PT1/2 port connections. The adjustable air cushion at each end provides a 28 mm deceleration zone to absorb inertia, while the standard TPU seals ensure reliable operation within a -20 to +70 °C temperature range. The total body length A is 203 mm, giving an extended length of approximately 448 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X245 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X245 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 245 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 SC125X245
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×245 | 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 SC125X245 Is Used
Press & Clamping Fixtures
Delivers over 11000 N of clamping force at 0.9 MPa, ideal for pneumatic toggle clamps, assembly presses, and holding fixtures for welding or machining large components.
Material Handling Gates
The 245 mm stroke and high force output effectively actuate diverter gates, stops, and transfer mechanisms on heavy-duty conveyor lines handling pallets or bulk materials.
Industrial Lifting & Tilting
Provides the controlled push and pull force needed for tilting bins, lifting scissor tables, or positioning heavy tooling heads, with the 28 mm cushion protecting the end caps during high-cycle operation.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X245 the Right Cylinder?
Select the SC125X245 when your application requires the 6136 N push force class at standard plant air pressure. If your load demands a more compact installation with lower force, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa. For higher force requirements, the SC160 bore delivers 10053 N at the same pressure.
For this 245 mm stroke, ensure the load is guided and side forces are eliminated to prevent bending stress on the 32 mm rod. When replacing an existing cylinder, match five key points: 125 mm bore, 245 mm stroke, PT1/2 port thread, basic (no bracket) mounting configuration, and the absence of a built-in magnet. This is an ISO 6430 class cylinder, so dimensional interchangeability is limited to other VDMA 24562 compliant tie-rod designs.
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 SC125X245 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 AirTAC SC series is a tie-rod cylinder conforming to the ISO 6430 class for large bores, which has a shorter overall body length than an ISO 15552 profile cylinder. It is not dimensionally interchangeable with ISO 15552. For a correct replacement, match the 125 mm bore, 245 mm stroke, PT1/2 ports, and basic mounting configuration.
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