Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 370mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke370 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC
The SC125X370STC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 370 mm stroke and a robust 32 mm piston rod, this ISO 6430 class tie-rod actuator is built for demanding industrial linear motion tasks.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion mount (TC suffix with F-SC125TC bracket) for pivoting applications. The standard PT port thread and TPU seals ensure reliable operation within a -20 to +70 °C temperature range.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 370 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 SC125X370STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×370 | 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 SC125X370STC Is Used
Heavy-Duty Clamping
The 11045 N thrust at 0.9 MPa makes this cylinder ideal for powerful, high-force clamping fixtures in machining centres and welding jigs.
Pivoting Conveyor Gates
The centre trunnion mount allows the cylinder to pivot, perfect for actuating diverter gates or sorting mechanisms on heavy-duty conveyor systems.
Press and Forming Tools
Delivers the consistent, high force needed for small pneumatic presses, riveting stations, and material forming operations in automated assembly lines.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X370STC the Right Cylinder?
For applications requiring less force, consider stepping down to the SC100 bore, which provides 3927 N at 0.5 MPa. If you need more power, the SC160 bore offers 10053 N at the same pressure. The 370 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, 370 mm stroke, PT port thread, centre trunnion (TC) mounting, and the built-in magnet (-S) for sensor compatibility. For this stroke length, be mindful of side loads; an external guide or guided cylinder is recommended to protect the rod bearing from 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 SC125X370STC FAQ
At the standard 0.5 MPa operating pressure, 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 increases to 11045 N.
No. The SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder, so it is not dimensionally interchangeable. You must replace it with another AirTAC SC125 tie-rod cylinder matching the bore, stroke, PT ports, and TC mount.
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