Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB is a genuine double-acting standard air cylinder with a Ø125mm bore and 300mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke300 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB
The AirTAC SC125X300LB is a double-acting tie-rod 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 300 mm stroke and a robust 32 mm piston rod, this cylinder is built for heavy linear actuation tasks where a stable, surface-mounted configuration is required.
This model includes the LB axial foot mount (accessory F-SC125LB) for secure surface installation. The bore 125 body has a length of 203 mm, and the adjustable air cushion at each end is 28 mm, providing smooth deceleration for high-inertia loads. It operates on filtered air from 0.15 to 1.0 MPa within a temperature range of -20 to +70 °C using standard TPU seals.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 300 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 SC125X300LB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×300 | 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 SC125X300LB Is Used
Pallet Stop & Lift Gates
The 300 mm stroke and foot mounting provide a stable base for raising or stopping heavy pallets on conveyor lines, using the 6136 N push force at standard shop air.
Press & Clamping Fixtures
Delivers up to 11045 N of clamping force at 0.9 MPa, ideal for heavy-duty welding jigs or assembly presses where a rigid, bolted-down cylinder is required.
Baler & Compactor Ejection
The robust 32 mm rod and tie-rod construction withstand the high cycle counts and shock loads of ejecting compacted material in recycling balers.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X300LB the Right Cylinder?
Select the SC125 when your application requires a push force between the SC100 (3927 N at 0.5 MPa) and the SC160 (10053 N at 0.5 MPa). For this 300 mm stroke, ensure the rod is not subjected to direct side loading; if lateral forces are present, an external guide rail or a guided cylinder is essential to prevent rod bending and premature bearing wear. For a direct replacement, match the 125 mm bore, 300 mm stroke, PT port thread, LB foot mounting, and the non-magnet configuration precisely.
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 SC125X300LB FAQ
At 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 reaches 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
No. The SC series is a tie-rod cylinder that is physically shorter than an ISO 15552 profile cylinder, so the mounting dimensions are not interchangeable. It is a direct replacement only for another AirTAC SC tie-rod cylinder with matching bore, stroke, LB foot mount, and PT ports.
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