Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 800mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke800 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC
The AirTAC SC125X800STC is a double-acting single-rod 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 an 800 mm stroke and a 32 mm diameter piston rod, this ISO 6430 class cylinder is built for heavy industrial tasks requiring substantial force over a long working distance.
This model features a built-in magnet (-S suffix) for mounting CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel, enabling precise end-of-stroke or mid-stroke position feedback. The TC suffix denotes a centre trunnion mount, supplied with the TCM1 bracket (part code F-SC125TC), which allows the cylinder body to pivot, making it ideal for swinging or articulating loads. The adjustable air cushion at each end decelerates the piston smoothly, protecting the end caps during high-speed operation.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 800 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 SC125X800STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×800 | 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 SC125X800STC Is Used
Heavy Part Diverter Gates
The 800 mm stroke and pivoting trunnion mount allow this cylinder to actuate large diverter gates on heavy-duty conveyor systems, sorting pallets or bulky packages with the 6136 N force available at standard shop air pressure.
Agricultural Equipment Actuation
Ideal for controlling chutes, hopper doors, or boom swings on farming machinery. The robust tie-rod construction and 0 to +70 °C TPU seal temperature range handle dusty outdoor conditions, while the magnet provides reliable position confirmation.
Welding Fixture Clamping
Delivers up to 11045 N of clamping force at 0.9 MPa for securing large fabrications in a welding jig. The centre trunnion mount lets the cylinder body pivot as the clamp arm moves, and the built-in magnet signals the controller when the part is fully clamped.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X800STC the Right Cylinder?
Select the SC125 bore when your application requires a push force between 6136 N (at 0.5 MPa) and 11045 N (at 0.9 MPa). If your force requirement is slightly lower, stepping down to the SC100 bore provides 3927 N at 0.5 MPa in a more compact body. For this 800 mm stroke, ensure the load is guided externally or use a guided cylinder configuration, as a long, unsupported 32 mm rod is susceptible to bending under side loads, which can cause premature rod bearing and seal wear.
To replace an existing cylinder, match five key points: the 125 mm bore, the 800 mm stroke, the PT (Rc) port thread, the centre trunnion mounting accessory (F-SC125TC), and the built-in magnet for sensor compatibility. The SC series is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125X800STC FAQ
At the standard operating pressure of 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 increases to 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
To ensure a direct drop-in replacement, you must match the 125 mm bore, 800 mm stroke, centre trunnion mount (TC with TCM1 bracket, part F-SC125TC), PT port thread, and the built-in magnet (-S) for sensor mounting. This is a tie-rod cylinder, so an ISO 15552 profile cylinder will not fit without modifying the mounting and port positions.
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