Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA is a genuine double-acting standard air cylinder with a Ø125mm bore and 350mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke350 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA
The SC125X350FA is a large-bore double-acting pneumatic cylinder delivering substantial force for heavy industrial actuation. At 0.5 MPa it pushes with 6136 N and pulls with 5734 N, rising to a powerful 11045 N push at the maximum operating pressure of 0.9 MPa. The 350 mm stroke is well within the 1500 mm maximum standard stroke for this 125 mm bore, and the adjustable air cushion (28 mm length) decelerates the 32 mm diameter piston rod smoothly at end-of-travel.
This model is configured with an FA front rectangular flange (accessory F-SC125FA) for rigid panel or bulkhead mounting on the rod side. The tie-rod construction makes it shorter than an equivalent ISO 15552 cylinder, suiting it to space-constrained heavy-duty machinery. Ports are PT1/2 with an M27x2 rod thread, and the standard TPU seals provide reliable operation from -20 to +70 °C.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 350 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 SC125X350FA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×350 | 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 SC125X350FA Is Used
Heavy Press & Clamping
The 11045 N output at 0.9 MPa makes the SC125 ideal for pneumatic presses, assembly jigs, and high-force clamping fixtures where a compact tie-rod cylinder is preferred.
Material Handling Gates
Use the 350 mm stroke to operate diverter gates or heavy chute doors on conveyors. The front flange mount allows secure attachment to the gate framework.
Large Part Ejection
Eject large moulded or formed parts with consistent force. The adjustable cushion protects the tooling from impact shock at the end of the 350 mm ejection stroke.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X350FA the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N and 11045 N of pneumatic thrust. If your load is lighter, stepping down to the SC100 bore saves space and air consumption (3927 N at 0.5 MPa). For strokes of 350 mm and above, always check for side loads: the 32 mm rod is robust, but an external guide or linear bearing is recommended if the load is not perfectly axial to prevent rod bearing wear and bending.
This FA front-flange configuration mounts directly to a machine panel or end-plate. For a direct replacement, match five points: 125 mm bore, 350 mm stroke, PT1/2 ports, front flange mounting (FA), and the standard non-magnetic piston. The SC is a tie-rod cylinder and will not interchange with ISO 15552 profile cylinders.
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 SC125X350FA FAQ
At 0.7 MPa (7 bar) supply pressure, the SC125 bore generates a theoretical pushing force of 8590 N. The pulling force on the return stroke is 5734 N at the same pressure, accounting for the 32 mm rod area.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. The mounting dimensions and tie-rod spacing differ, so it is not a drop-in replacement. It must replace another SC-series tie-rod cylinder with matching bore, stroke, and FA front flange.
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