Airtac SC125-160 Standard Cylinder SC125X300S
The 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the 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 SC125-160 Standard Cylinder SC125X300S Technical Specifications
| Model | 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 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 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 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 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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