Airtac AIRTAC SC125-160 Standard Cylinder SC125X650
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X650 is a genuine double-acting standard air cylinder with a Ø125mm bore and 650mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke650 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X650
The SC125X650 is a double-acting tie-rod cylinder delivering a push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 125 mm bore and a 650 mm stroke, this model is built for heavy industrial linear actuation where substantial force and a moderate working distance are required.
This ISO 6430 class cylinder features a 32 mm diameter piston rod with an M27x2 knuckle thread and PT1/2 ports. The 28 mm adjustable air cushion at each end decelerates the piston smoothly, protecting the end caps during high-cycle operation. The body length A is 203 mm, giving a total extended length of approximately 853 mm.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X650 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X650 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 650 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 SC125X650
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×650 | 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 SC125X650 Is Used
Heavy Press Tool Actuation
Operates clamping or forming tools in hydraulic-press-style pneumatic systems, using the 11045 N max force at 0.9 MPa for secure part holding.
Pallet Lift and Transfer
Powers lift mechanisms in pallet handling stations, reliably raising heavy loads with the 6136 N push force available at standard 0.5 MPa line pressure.
Structural Welding Fixtures
Positions and clamps large fabricated steel assemblies in welding jigs, where the 650 mm stroke provides ample reach and the tie-rod construction withstands harsh shop air.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X650 the Right Cylinder?
The SC125 bore sits in the heavy-duty range. If your application requires less force, stepping down to the SC100 bore provides 3927 N at 0.5 MPa; for even higher force, the SC160 bore delivers 10053 N at the same pressure. Always match the replacement cylinder on all five key points: 125 mm bore, 650 mm stroke, PT port thread, basic mounting (no bracket), and the absence of a magnet.
For this 650 mm stroke, consider the potential for side loading on the 32 mm rod. If the load is not guided externally, bending moments can damage the rod bearing and seal. Use an external guide rail or a guided cylinder configuration to absorb lateral forces and ensure long service 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 SC125X650 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.
No. The SC series is a tie-rod cylinder that is shorter in overall length than an ISO 15552 profile cylinder. It is an ISO 6430 class cylinder in the 125 mm bore size. For a drop-in replacement, you must match another AirTAC SC tie-rod cylinder with the same bore, stroke, and port thread.
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