Airtac AIRTAC SC125-160 Standard Cylinder SC125X135
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X135 is a genuine double-acting standard air cylinder with a Ø125mm bore and 135mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke135 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X135
The AirTAC SC125X135 is a robust double-acting tie-rod cylinder delivering 6136 N of push force and 5734 N of pull force at 0.5 MPa operating pressure. With a 135 mm stroke and a 32 mm diameter piston rod, this model is well-suited for medium-stroke clamping, pressing, and material handling tasks that require substantial force in a compact footprint.
This cylinder 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, and the total extended length is approximately 338 mm. It uses PT1/2 ports and M27x2 rod thread, conforming to the ISO 6430 class for large-bore tie-rod cylinders.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X135 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X135 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 135 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 SC125X135
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×135 | 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 SC125X135 Is Used
Pallet & Conveyor Stops
The 6136 N push force at 0.5 MPa is ideal for stopping and positioning heavy pallets or transferring large components on conveyor lines, providing reliable material handling control.
Heavy-Duty Clamping
Delivers up to 11045 N of force at 0.9 MPa for secure workpiece clamping in welding fixtures, assembly jigs, and machining centres where vibration resistance is critical.
Lifting & Tilting Mechanisms
With a 32 mm rigid piston rod and 135 mm stroke, this cylinder is suitable for short-lift scissor tables and bin tippers, handling heavy off-centre loads when externally guided.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X135 the Right Cylinder?
For applications needing slightly less force, the SC100 bore provides 3927 N at 0.5 MPa, while stepping up to the SC160 bore offers 10053 N. The SC125X135 uses standard PT threads; ensure your existing fittings match, or specify the G thread option if required. This basic model does not include a magnet or mounting accessories—order the -S suffix for sensor compatibility and select from the F-SC125 mounting range (LB, FA, FB, CA, CB, TC) if brackets are needed.
To replace an existing cylinder, match five points: 125 mm bore, 135 mm stroke, PT1/2 port thread, basic mounting (no bracket), and no magnet. This model is a direct replacement only for an AirTAC SC125X135 or an equivalent tie-rod cylinder with identical 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 SC125X135 FAQ
At the standard 0.5 MPa operating pressure, the push force is 6136 N and the pull force is 5734 N. At 0.7 MPa, push force increases to 8590 N, and at the maximum operating pressure of 0.9 MPa, it reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No, the SC125X135 is a double-acting cylinder and will not hold position if air pressure is lost or the valve is centred. The adjustable air cushion only decelerates the piston at the end of stroke. To hold a load safely, you must add a pilot-operated check valve or an external mechanical rod lock.
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