Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 80mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke80 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC
The SC125X80STC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa, scaling up to 11045 N at the maximum operating pressure of 0.9 MPa. With an 80 mm stroke and a robust 32 mm piston rod, this model is built for heavy linear actuation tasks where a compact, pivoting installation is required.
This configuration includes a built-in magnet (S) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (TC) supplied with the TCM1 bracket (F-SC125TC) for smooth pivoting under load. The standard TPU seals provide reliable operation from -20 to +70 °C, and the 28 mm air cushion at each end decelerates the piston to protect the end caps.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 80 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 SC125X80STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SC125X80STC Is Used
Heavy Part Sorting Gates
The 6136 N push force at 0.5 MPa easily diverts heavy pallets or large packages on high-capacity conveyor systems, with the trunnion mount allowing the cylinder body to pivot as the gate actuates.
Welding Fixture Clamping
Delivers consistent, high-force clamping for large weldments in automotive or structural steel fixtures. The magnetic piston enables end-of-stroke confirmation to ensure part presence before the welding cycle starts.
Agricultural Implement Control
Controls chutes or heavy baffles on harvesters and spreaders. The centre trunnion mount handles the arcing motion, while the robust 32 mm rod withstands harsh, dusty environments.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X80STC the Right Cylinder?
For applications needing more force, stepping up to the 160 mm bore provides 10053 N at 0.5 MPa. If a lower force and smaller footprint are acceptable, the 100 mm bore delivers 3927 N. This SC125X80STC is a direct replacement for any AirTAC SC125 tie-rod cylinder of the same stroke, provided the port thread (PT), magnet option (-S), and TC centre trunnion mounting match. For strokes of 80 mm, side-load bending is typically not a concern, but always ensure the load is guided if any lateral force is present.
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 SC125X80STC 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. The theoretical maximum force at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder that is shorter in overall length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC125 tie-rod cylinder with matching bore, stroke, PT ports, centre trunnion mount, and magnetic piston.
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