Airtac AIRTAC SC125-160 Standard Cylinder SC125X275TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X275TC 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 SC125X275TC
The SC125X275TC is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a substantial push force of 6136 N at 0.5 MPa and up to 11045 N at 0.9 MPa. With a 125 mm bore and 275 mm stroke, this model is equipped with a centre trunnion (TC) mount, making it ideal for applications where the cylinder body must pivot during actuation.
This unit features a 32 mm piston rod with an M27x2 thread, a 28 mm adjustable air cushion for smooth deceleration, and a PT1/2 port. The body length A is 203 mm, resulting in a total extended length of approximately 478 mm. As an ISO 6430 class cylinder, it is built for heavy-duty industrial tasks requiring high force in a compact, tie-rod design.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X275TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X275TC |
|---|---|
| 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 SC125X275TC
| 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 SC125X275TC Is Used
Heavy-Duty Clamping
Applies up to 11045 N of force for secure workpiece clamping in large CNC machining centres and welding fixtures.
Material Handling Pivot
The centre trunnion mount allows the cylinder to swing, perfect for actuating diverter gates or tilting heavy conveyor sections.
Press and Forming
Delivers consistent, high-force linear motion for small pneumatic presses, riveting stations, and metal-forming tools.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X275TC the Right Cylinder?
Select the SC125 bore when your application requires between 6136 N and 11045 N of push force; for lower force needs, the SC100 bore provides 3927 N at 0.5 MPa. This 275 mm stroke model includes a centre trunnion (TC) mount, which is essential for pivoting loads, and ships with the TCM1 bracket (F-SC125TC). For a direct replacement, match the 125 mm bore, 275 mm stroke, PT port thread, and TC mounting configuration. For strokes over 300 mm, consider external guides to protect the 32 mm rod from side-load bending moments.
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 SC125X275TC FAQ
At the standard operating pressure of 0.7 MPa, the push force is 8590 N and the pull force is 5734 N. The maximum theoretical push force at 1.0 MPa is 1251 kgf.
No. The SC125X275TC is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. For load-holding applications, you must add an external rod lock or a pilot-operated check valve.
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