Airtac AIRTAC SC125-160 Standard Cylinder SC125X900
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X900 is a genuine double-acting standard air cylinder with a Ø125mm bore and 900mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke900 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X900
The AirTAC SC125X900 is a double-acting tie-rod cylinder delivering a substantial push force of 6136 N at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). Its 32 mm diameter piston rod and 28 mm adjustable air cushion are built to manage high-inertia loads, making the 900 mm stroke suitable for long-travel material transfer and heavy clamping applications.
Part of the ISO 6430 class for large bores, this cylinder features a 203 mm body length (A) and PT1/2 ports. The standard TPU seals provide reliable operation from -20 to +70 °C. With a maximum standard stroke of 1500 mm for the 125 mm bore, this 900 mm unit is a standard-stroke model, ready for rapid shipment.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X900 Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X900 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 900 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 SC125X900
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×900 | 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 SC125X900 Is Used
Palletizer Pushers
The 900 mm stroke and 6136 N force at 0.5 MPa reliably push heavy pallets or slip sheets into position on automated palletizing lines.
Long-Travel Material Stops
Ideal for heavy-duty conveyor systems where a robust cylinder must extend to stop or divert large, high-momentum packages.
Heavy Die Cushioning
The adjustable air cushion decelerates heavy stamping dies smoothly at the end of the 900 mm travel, protecting tooling from impact damage.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X900 the Right Cylinder?
For applications needing more force, stepping up to the 160 mm bore provides 10053 N of push force at the same 0.5 MPa. If a shorter, more compact cylinder is acceptable, the 100 mm bore offers 3927 N. The 900 mm stroke requires careful management of side loads; an external guide system or a guided cylinder is strongly recommended to prevent rod bending and premature bearing wear.
When replacing an existing unit, ensure a 5-point match: 125 mm bore, 900 mm stroke, PT1/2 port thread, basic (no bracket) mounting, and no built-in magnet. This model is a direct replacement for another AirTAC SC125X900 tie-rod cylinder.
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 SC125X900 FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N. The pull force on the return stroke is 5734 N.
Not directly. This specific model code lacks the '-S' magnet suffix, so the piston does not have a built-in magnet. To use CMSG/DMSG sensors, you would need the SC125X900-S variant. For this model, use external limit switches or a linear transducer.
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