Airtac AIRTAC SC125-160 Standard Cylinder SC125X65
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X65 is a genuine double-acting standard air cylinder with a Ø125mm bore and 65mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke65 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X65
The AirTAC SC125X65 is a double-acting tie-rod cylinder delivering a substantial 6136 N of push force at 0.5 MPa, rising to 11045 N at the maximum operating pressure of 0.9 MPa. Its 125 mm bore and 65 mm stroke suit applications requiring high force within a compact linear envelope, and the 32 mm diameter piston rod provides excellent rigidity for pushing heavy loads.
This model features a 28 mm adjustable air cushion at each end to decelerate the piston smoothly, reducing end-of-stroke impact. The body length A is 203 mm, giving a total extended length of approximately 268 mm. It uses a PT1/2 port and an M27x2 rod thread, with a standard speed range of 30-500 mm/s suitable for controlled, powerful actuation.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X65 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X65 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 65 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 SC125X65
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×65 | 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 SC125X65 Is Used
Heavy Pallet Stop
The 6136 N force at 0.5 MPa easily raises and holds a heavy pallet stop gate on a gravity or powered conveyor, controlling the flow of loaded pallets with a short, powerful 65 mm stroke.
Press-Fit Assembly
Delivers up to 11045 N of push force at 0.9 MPa for pressing bearings, bushings, or pins into housings. The 32 mm rigid rod and short 65 mm stroke provide stable, high-force insertion without buckling.
Clamping & Fixturing
Ideal for a heavy-duty welding or machining fixture clamp. The double-acting control securely clamps a workpiece for processing and then retracts, with the adjustable cushion softening the clamp's contact.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X65 the Right Cylinder?
Select the SC125 bore when your application needs between roughly 5700 N and 11000 N of force. If your load is lighter, stepping down to the SC100 bore provides 3927 N at 0.5 MPa in a smaller, lighter package. For even higher force requirements, the SC160 bore offers 10053 N at the same pressure.
To ensure a correct replacement, match five key points: the 125 mm bore, 65 mm stroke, PT1/2 port thread, basic mounting (no bracket), and the absence of a magnet. This is an ISO 6430 class tie-rod cylinder, not an ISO 15552 profile cylinder, so dimensional interchangeability is limited to other AirTAC SC125 tie-rod units with the same specifications.
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 SC125X65 FAQ
At the standard 0.5 MPa operating pressure, the push force is 6136 N and the pull force on the retract stroke 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.
No, you cannot. The SC series is a tie-rod cylinder that is shorter in overall length than a comparable ISO 15552 profile cylinder. The tie-rod mounting holes and end-cap dimensions are different. It is a direct replacement only for another AirTAC SC125 tie-rod cylinder with the same bore, stroke, PT port, and basic mounting configuration.
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