Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 125mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke125 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC
The AirTAC SC125X125STC is a double-acting tie-rod cylinder delivering 6136 N push force at 0.5 MPa (11045 N at 0.9 MPa), built for heavy-duty linear actuation. This 125 mm bore model uses a 32 mm piston rod with M27x2 knuckle thread and an adjustable air cushion length of 28 mm to decelerate the load smoothly at stroke end.
With a 125 mm standard stroke, the total extended body length is approximately 328 mm (body length A=203 mm + stroke). The -S suffix integrates a magnet into the piston, allowing CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The TC centre trunnion mount (supplied with TCM1 bracket, order code F-SC125TC) lets the cylinder pivot, making it ideal for swinging or articulating load paths.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 125 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 SC125X125STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×125 | 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 SC125X125STC Is Used
Conveyor Diverter Gates
The 6136 N push force at 0.5 MPa easily actuates heavy diverter gates on wide conveyor systems. The centre trunnion mount allows the cylinder to pivot as the gate swings through its arc.
Welding Fixture Clamping
Delivers 11045 N of clamping force at 0.9 MPa for holding large weldments in place. The built-in magnet enables dual-sensor confirmation of clamp open/closed status for machine safety interlocks.
Agricultural Implement Control
Controls heavy chute doors or boom adjustments on farm machinery. The TPU seals operate reliably from -20 to +70 °C, and the trunnion mount handles the off-axis motion common in field equipment.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X125STC the Right Cylinder?
Select the SC125 when your application needs between 5734 N (pull) and 6136 N (push) at 0.5 MPa. If your force requirement is lower, stepping down to the 100 mm bore reduces push force to 3927 N; for higher force, the 160 mm bore provides 10053 N at the same pressure. This 125 mm bore falls into the ISO 6430 class with a speed range of 30-500 mm/s.
For this 125 mm stroke, side-loading is generally minimal, but always align the rod path with the load axis. When replacing an existing cylinder, match five points: 125 mm bore, 125 mm stroke, PT port thread, centre trunnion (TC) mounting with the F-SC125TC bracket, and the built-in magnet (-S) for sensor compatibility.
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 SC125X125STC FAQ
At the standard 0.5 MPa operating pressure, push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force increases to 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. For a direct replacement, match the 125 mm bore, 125 mm stroke, PT ports, centre trunnion (TC) mount, and the integrated magnet (-S) feature.
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