Airtac AIRTAC SC125-160 Standard Cylinder SC125X225
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X225 is a genuine double-acting standard air cylinder with a Ø125mm bore and 225mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke225 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X225
The SC125X225 is a double-acting pneumatic cylinder delivering a substantial 6136 N of push force at 0.5 MPa (11045 N at the 0.9 MPa maximum operating pressure). With a 32 mm diameter piston rod and M27x2 knuckle thread, it is built for heavy linear actuation tasks where a 225 mm stroke is required.
This model belongs to AirTAC's ISO 6430 class big-bore SC series, featuring a 28 mm adjustable air cushion at each end to decelerate high-inertia loads. The body length A is 203 mm, giving a total extended length of approximately 428 mm. Standard PT1/2 ports and TPU seals (-20 to +70 °C) are fitted.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X225 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X225 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 225 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 SC125X225
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×225 | 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 SC125X225 Is Used
Heavy Gate & Damper Actuation
Operates large ventilation dampers or slide gates in agricultural processing, using the 6136 N push force to move heavy panels reliably.
Pallet & Heavy Part Transfer
Pushes 225 mm to transfer pallets or heavy castings between conveyor lines, where the ISO 6430 class tie-rod construction handles tough industrial environments.
Press & Clamping Fixtures
Applies up to 11045 N of clamping force in hydraulic-style press fixtures, with the adjustable cushion softening end-of-stroke impact for tooling longevity.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X225 the Right Cylinder?
Select the SC125X225 when the SC100's 3927 N at 0.5 MPa is marginal for your load. If your application involves a stroke of 300 mm or longer, consider an external guide or a guided cylinder to protect the 32 mm rod from bending under side load. For replacement, match five points: 125 mm bore, 225 mm stroke, PT1/2 port thread, basic (no bracket) mounting, and no magnet. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125X225 FAQ
At 0.5 MPa the 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.
No. The AirTAC SC series is a tie-rod cylinder conforming to ISO 6430 class for big bores. It is shorter in overall length than a typical ISO 15552 profile cylinder, so mounting dimensions and body length A (203 mm) will not match. Only use it to replace another AirTAC SC125 tie-rod cylinder with matching stroke, port, and mounting.
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