Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H is a genuine double-acting standard air cylinder with a Ø125mm bore and 80mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke80 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H
The AirTAC SC125X80H is a heavy-duty double-acting tie-rod cylinder with an 80 mm stroke and a 32 mm piston rod, delivering a push force of 6136 N at 0.5 MPa. Its Viton (FKM) seals shift the operating temperature range to 0–150 °C, making this actuator suitable for hot environments where standard TPU seals would degrade.
With a body length A of 203 mm and an adjustable air cushion of 28 mm, the SC125X80H decelerates end-of-stroke loads quietly. The PT1/2 port thread and M27x2 rod thread handle high flow and robust mechanical connections, ideal for pressing, clamping, and material handling in foundries or autoclaves.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 80 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 SC125X80H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SC125X80H Is Used
High-Temperature Pressing
The Viton seals allow the SC125X80H to operate continuously at 150°C, making it ideal for hot pressing, autoclave door actuation, and vulcanizing equipment where standard cylinders fail.
Heavy Clamping & Fixturing
With over 6000 N of force at just 0.5 MPa, this cylinder securely clamps large weldments or castings. The adjustable cushion prevents impact damage to the fixture during high-speed clamping cycles.
Foundry Material Handling
The SC125X80H resists heat and provides the brute force needed to push heavy molds or slag bins. Its tie-rod construction allows for easy on-site seal replacement in dirty environments.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X80H the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N (push at 0.5 MPa) and 11045 N (push at 0.9 MPa). If your force requirement is lower, the SC100 bore provides 3927 N at 0.5 MPa in a lighter package. For higher forces, step up to the SC160.
To replace an existing cylinder, match five points: 125 mm bore, 80 mm stroke, PT port thread, basic (no accessory) mounting, and the absence of a magnet. The SC125 series is an ISO 6430 class tie-rod cylinder and is dimensionally shorter than a typical ISO 15552 profile, so it is not a drop-in replacement for those profiles.
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 SC125X80H 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 reaches 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
Yes. The 'H' suffix designates Viton (FKM) seals, which are rated for an operating temperature range of 0 to +150 °C. This is significantly higher than the standard TPU seal range of -20 to +70 °C, making it suitable for hot environments.
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