Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S is a genuine double-acting standard air cylinder with a Ø125mm bore and 375mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke375 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S
The SC125X375S is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 125 mm bore with a 375 mm stroke. It generates a substantial push force of 6136 N at 0.5 MPa and reaches up to 11045 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy linear actuation tasks.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for reliable end-of-stroke detection. The 32 mm diameter piston rod, 28 mm adjustable air cushion, and PT1/2 port thread are standard for this ISO 6430 class cylinder, which has a body length of 203 mm and a speed range of 30-500 mm/s.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 375 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 SC125X375S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×375 | 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 SC125X375S Is Used
Palletizing Systems
The 6136 N push force at 0.5 MPa and 375 mm stroke effectively drive heavy pallet lifts and layer-forming mechanisms in automated palletizers.
Heavy-Duty Clamping
Provides the high force needed for secure clamping of large workpieces in CNC machining centers or welding fixtures, with sensor confirmation via the built-in magnet.
Material Transfer Gates
Actuates diverter gates and heavy stops on wide conveyor lines, handling the impact of large packages with its 28 mm cushion and robust tie-rod construction.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X375S the Right Cylinder?
Select the SC125X375S when your application requires a robust force output in the 6000 N range at standard plant pressure. For a lighter load, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa, while moving up to the SC160 bore provides 10053 N. Always match the bore, 375 mm stroke, PT port thread, and the built-in magnet when replacing an existing unit.
For this 375 mm stroke, be mindful of side-loading forces on the 32 mm rod. If the load is not guided externally, the extended rod can experience bending stress. Use an external guide rail or rod-alignment coupler to protect the rod bearing and ensure long seal life.
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 SC125X375S FAQ
At 0.5 MPa, the theoretical 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. The theoretical maximum force at 1.0 MPa is 1251 kgf.
Yes, the -S suffix in SC125X375S designates a built-in magnet along the piston. This allows you to clamp compatible AirTAC CMSG, DMSG, or EMSG sensors directly onto the cylinder barrel to detect piston position without external brackets.
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