Airtac AIRTAC SC125-160 Standard Cylinder SC125X275
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X275 is a genuine double-acting standard air cylinder with a Ø125mm bore and 275mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke275 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X275
The AirTAC SC125X275 is a double-acting pneumatic cylinder delivering substantial force for heavy-duty industrial automation. With a 125 mm bore and 275 mm stroke, this model generates 6136 N of push force at 0.5 MPa, scaling up to a powerful 11045 N at the maximum operating pressure of 0.9 MPa.
This tie-rod cylinder features a robust 32 mm diameter piston rod with an M27x2 knuckle thread and a 28 mm adjustable air cushion to decelerate high-inertia loads smoothly. As an ISO 6430 class cylinder, its total extended body length is approximately 478 mm (203 mm body length A plus 275 mm stroke), making it a compact choice for its force class.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X275 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X275 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 275 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 SC125X275
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×275 | 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 SC125X275 Is Used
Heavy Material Forming
Provides the high clamping and pressing forces needed for bending, stamping, or compacting operations in manufacturing cells.
Palletizer Lift Assist
Delivers controlled, powerful vertical motion for lifting heavy pallets or products in end-of-line packaging systems.
Waste Compaction Equipment
Drives the compaction plate in recycling balers, generating the necessary 11 kN peak force for dense material compression.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X275 the Right Cylinder?
Select the SC125X275 when your application requires force in the 6 kN range at standard plant pressure. If you need less force, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa. For even higher thrust, the SC160 bore offers 10053 N at the same pressure. The 275 mm stroke is well within the 1500 mm maximum standard stroke for this bore.
For strokes over 300 mm or applications with side loads, ensure the 32 mm rod is externally guided or supported to prevent bending stress on the rod bearing. When replacing this cylinder, match five key points: 125 mm bore, 275 mm stroke, PT port thread, basic mounting (no brackets), and no magnet.
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 SC125X275 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, the push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder that is shorter in body length than a standard ISO 15552 cylinder. It is not a drop-in replacement. It matches other AirTAC SC tie-rod cylinders with the same bore, stroke, and port configuration.
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