Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 175mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke175 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC
The SC125X175STC is a double-acting pneumatic cylinder delivering 6136 N push force at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. Its 175 mm stroke is paired with a robust 32 mm piston rod and an adjustable air cushion of 28 mm, providing smooth deceleration for mid-range linear movements.
This configuration includes a built-in magnet (-S), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable position feedback. The centre trunnion mount (TC) is supplied with the TCM1 bracket (F-SC125TC), enabling the cylinder to pivot and handle swinging loads effectively.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 175 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 SC125X175STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 SC125X175STC Is Used
Conveyor Diverters
The 175 mm stroke and high force effectively push heavy packages or pallets onto a branch line, with the trunnion mount allowing the cylinder body to swing as the diverter arm arcs.
Clamping & Staking Fixtures
Delivers up to 11045 N of clamping force at 0.9 MPa, ideal for holding large weldments or assemblies. The built-in magnet enables end-of-stroke confirmation to prevent short cycles.
Heavy-Duty Press Guards
Raises and lowers a large safety guard with controlled motion. The adjustable cushion and trunnion pivot manage the inertial load of a heavy steel mesh door.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X175STC the Right Cylinder?
For higher force at the same pressure, step up to the SC160 bore, which offers 10053 N push at 0.5 MPa. If a lighter, more compact solution is acceptable, the SC100 bore provides 3927 N. This 125 mm bore model is an ISO 6430 class cylinder.
To ensure a direct replacement, match five key points: identical bore and stroke, PT port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the built-in magnet for sensor compatibility. Always verify the total extended length (body length 203 mm + 175 mm stroke) fits the existing machine envelope.
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 SC125X175STC FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N. The pull force on the return stroke is 5734 N, accounting for the 32 mm rod diameter.
No. As a standard double-acting cylinder, it will drift or drop if pressure is exhausted. For load-holding in a power-off condition, you must add an external pilot-operated check valve or a mechanical rod lock.
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