Airtac AIRTAC SC125-160 Standard Cylinder SC125X275STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X275STC 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 SC125X275STC
The AirTAC SC125X275STC is a double-acting single-rod pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at 0.9 MPa). With a 125 mm bore and 275 mm stroke, this model is built on a robust tie-rod construction featuring a 32 mm diameter piston rod and M27x2 rod thread for heavy-duty mechanical coupling.
This configuration includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (-TC suffix) supplied with the TCM1 bracket (F-SC125TC) for pivoting applications. The adjustable air cushion (28 mm length) decelerates the piston smoothly, protecting end caps during high-cycle operation within the 30-500 mm/s speed range.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X275STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X275STC |
|---|---|
| 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 SC125X275STC
| 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 SC125X275STC Is Used
Heavy Material Handling
Provides the high force needed for lifting, pushing, or diverting heavy pallets and packaged goods on industrial conveyor lines.
Clamping & Pressing
Delivers up to 11045 N of clamping force for welding fixtures, assembly jigs, and light-duty press tools requiring a pivoting cylinder mount.
Agricultural Machinery
Operates chute gates, bin doors, and sorting mechanisms on harvesters and processing equipment, with sensor feedback for position confirmation.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X275STC the Right Cylinder?
Choose the SC125 bore when your application requires between 6136 N (push at 0.5 MPa) and 11045 N (push at 0.9 MPa). For lower force requirements, step down to the SC100 bore which provides 3927 N at 0.5 MPa. For higher demands, the SC160 bore offers 10053 N at the same pressure. This 275 mm stroke is within the 1500 mm maximum standard stroke for this bore.
To ensure a correct replacement, match five key points: 125 mm bore, 275 mm stroke, PT port thread, centre trunnion (TC) mounting with TCM1 bracket, and the built-in magnet for sensor compatibility. For strokes over 300 mm or applications with side loads, consider an external guide system to protect the 32 mm rod from bending stress.
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 SC125X275STC 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, not an ISO 15552 profile cylinder. It is shorter than an equivalent ISO 15552 unit and is not dimensionally interchangeable. It matches other AirTAC SC tie-rod cylinders with the same bore, stroke, and mounting configuration. The SC125-250 bores are classified as ISO 6430 class.
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