Airtac AIRTAC SC125-160 Standard Cylinder SC125X120
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X120 is a genuine double-acting standard air cylinder with a Ø125mm bore and 120mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke120 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X120
The SC125X120 is a robust double-acting tie-rod cylinder delivering 6136 N of push force at 0.5 MPa, scaling up to 11045 N at 0.9 MPa. With a 120 mm stroke and a 32 mm rod diameter, it fits medium-travel clamping and pressing applications where high force is needed in a compact footprint.
This model features a 203 mm body length (A dimension) and a 28 mm adjustable air cushion at each end to decelerate heavy loads smoothly. The standard PT1/2 ports supply ample flow for the 125 mm bore, keeping cycle times predictable in demanding industrial settings.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X120 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X120 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 120 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 SC125X120
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×120 | 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 SC125X120 Is Used
Heavy Part Transfer
Shuttles 125 mm bore force to move large fixtures or pallets between stations on assembly lines.
Industrial Pressing
Delivers up to 11045 N at 0.9 MPa for pressing bearings, bushings, or forming light metal parts.
Clamping & Holding
Secures heavy workpieces during machining or welding with consistent double-acting force.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X120 the Right Cylinder?
For applications needing more force, the SC160 series steps up to 10053 N at 0.5 MPa with a 40 mm rod. If a shorter, lighter cylinder suffices, the SC100 bore provides 3927 N at 0.5 MPa. Always match replacement cylinders on bore, stroke, PT port thread, and basic mounting configuration.
At 120 mm stroke, the rod is well-supported, but any side load must be managed. For strokes over 300 mm or persistent lateral forces, use an external guide rail or switch to a guided cylinder to protect the rod bearing and seals from premature wear.
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 SC125X120 FAQ
At 0.5 MPa operating pressure, the SC125X120 produces 6136 Newtons of push force. The pull force on the retract stroke is 5734 N due to the 32 mm rod area.
No. The AirTAC SC is a tie-rod cylinder and is shorter in overall length than a standard ISO 15552 profile cylinder. It is not dimensionally interchangeable. Match directly with another AirTAC SC125 tie-rod cylinder.
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