Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S is a genuine double-acting standard air cylinder with a Ø125mm bore and 500mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke500 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S
The AirTAC SC125X500S is a double-acting single-rod pneumatic cylinder with a 125 mm bore and 500 mm stroke, part of the SC tie-rod family. This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be mounted directly on the barrel for reliable end-of-stroke detection. At 0.5 MPa it produces 6136 N of push force, scaling to 11045 N at the maximum operating pressure of 0.9 MPa.
Designed with a 32 mm rod, PT1/2 ports, and a 28 mm adjustable air cushion, it handles demanding linear motion tasks. The 500 mm stroke is well within the 1500 mm maximum standard stroke for this bore. Its body length A is 203 mm, giving a total extended length of approximately 703 mm. This ISO 6430 class cylinder operates from 30 to 500 mm/s on filtered air.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 500 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 SC125X500S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×500 | 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 SC125X500S Is Used
Heavy Press & Clamping
Delivers over 11000 N of force at 0.9 MPa for industrial presses, holding fixtures, and heavy-duty clamping operations in metal fabrication.
Palletising & Material Handling
Provides the high thrust needed for palletisers, lift tables, and large part transfer stations, reliably moving heavy loads with a 500 mm stroke.
Industrial Automation Machinery
Powers large-scale automation cells, including textile machinery and foundry equipment, where robust, high-force linear actuation is essential.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X500S the Right Cylinder?
Select the SC125 bore when your application requires a push force around 6136 N at 0.5 MPa. If your load is lighter, consider stepping down to the SC100 bore, which provides 3927 N at the same pressure. For strokes of 300 mm or more, especially with a 500 mm extension, be mindful of side loads. The long, unsupported rod can bend under lateral force; use an external guide rail or a guided cylinder assembly to protect the rod bearing and seals.
To ensure a correct replacement, match five key points: bore (125 mm), stroke (500 mm), port thread (PT), mounting style (basic), and the magnet option (-S). This cylinder is a direct replacement for another AirTAC SC125X500S or a similarly configured tie-rod cylinder.
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 SC125X500S 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 increases to 11045 N.
Yes, the ‘S’ in the model code SC125X500S indicates a built-in magnet. This allows you to attach compatible CMSG (reed) or DMSG/EMSG (solid-state) sensors directly to the cylinder barrel’s T-slot to detect piston position.
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