Airtac AIRTAC SC125-160 Standard Cylinder SC125X300S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X300S 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 SC125X300S
The SC125X300S delivers a substantial 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure), making it a workhorse for heavy industrial actuation. This 125 mm bore double-acting cylinder features a 32 mm piston rod, a 28 mm adjustable air cushion, and a 300 mm standard stroke within the 1500 mm max range for this bore.
A built-in magnet (-S suffix) is factory-installed, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for contactless position sensing. The SC125 is an ISO 6430 class tie-rod cylinder, not an ISO 15552 profile, with a body length A of 203 mm and PT1/2 ports.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X300S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X300S |
|---|---|
| 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 SC125X300S
| 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 SC125X300S Is Used
Heavy Press Tool Actuation
The 11045 N thrust at 0.9 MPa powers clamping, punching, and forming tools in metal fabrication cells, with sensor feedback for cycle confirmation.
Palletising & Transfer Systems
Moves heavy pallets or transfers large components between conveyor lines. The 300 mm stroke handles wide lane spacing, and the magnet enables end-of-stroke detection.
Sawmill & Log Handling
Provides the high force needed for log stops, flippers, and sorting gates. The tie-rod design is field-serviceable, and the adjustable cushion softens impact under heavy inertial loads.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X300S the Right Cylinder?
For higher force, step up to the SC160 (10053 N push at 0.5 MPa). If 6136 N is more than needed, the SC100 provides 3927 N at the same pressure. At a 300 mm stroke, the 32 mm rod is robust, but any significant side load requires an external linear guide; the rod bearing is not designed to absorb bending moments. For a direct replacement, match bore, stroke, PT port thread, the basic mounting, and the built-in magnet (-S) — this ensures sensor compatibility and identical tie-rod dimensions.
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 SC125X300S FAQ
At 0.5 MPa, push force is 6136 N and pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix means a magnet is built into the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the cylinder's tie-rod barrel to detect piston position without any additional brackets.
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