Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB is a genuine double-acting standard air cylinder with a Ø125mm bore and 75mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke75 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB
The SC125X75LB is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 75 mm stroke. This model generates a substantial push force of 6136 N at 0.5 MPa and reaches 11045 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy-duty linear actuation tasks.
This configuration includes the LB foot mounting accessory (F-SC125LB), which provides a stable, surface-mounted installation with axial feet on the barrel. The cylinder features a 32 mm piston rod with an M27x2 knuckle thread, PT1/2 port connections, and a 28 mm adjustable air cushion to decelerate the piston smoothly at the end of its travel.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 75 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 SC125X75LB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 SC125X75LB Is Used
Heavy Part Ejection
The 6136 N push force at 0.5 MPa easily ejects heavy components or rejects from a conveyor line, with the short 75 mm stroke providing a rapid, decisive push.
Clamping & Stamping
Delivers up to 11045 N of clamping force for holding large workpieces during machining or stamping operations, where the LB foot mount ensures rigid, fixed alignment.
Press-Fit Assembly
Ideal for short-travel, high-force press-fit tasks, such as seating bearings or bushings into housings, leveraging the cylinder's robust 32 mm rod to handle the compressive load.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X75LB the Right Cylinder?
Select the SC125X75LB when your application requires the high force output of a 125 mm bore but only a short 75 mm working stroke. If your force requirements are lower, consider stepping down to the 100 mm bore, which provides 3927 N of push force at 0.5 MPa. For longer stroke needs, the SC125 bore supports standard strokes up to 1500 mm.
To ensure a correct replacement, match five key points: the 125 mm bore, 75 mm stroke, PT port thread, LB foot mounting style, and the absence of a built-in magnet. This is an ISO 6430 class cylinder, so dimensional interchangeability is limited to other tie-rod designs of the same specification.
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 SC125X75LB FAQ
At the standard operating pressure of 0.5 MPa, the cylinder produces a push force of 6136 N and a pull force of 5734 N. The maximum push force at 0.9 MPa is 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than a comparable ISO 15552 profile cylinder. It is not dimensionally interchangeable. It will only directly replace another AirTAC SC tie-rod cylinder with matching bore, stroke, mounting, and port thread.
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