Airtac AIRTAC SC125-160 Standard Cylinder SC125X900TC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X900TC 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 SC125X900TC
The AirTAC SC125X900TC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa and up to 11045 N at 0.9 MPa, placing it in the heavy-duty industrial actuation class. This model features a 125 mm bore, 900 mm stroke, 32 mm diameter piston rod with M27x2 thread, and a 28 mm adjustable air cushion at each end to decelerate high-inertia loads smoothly.
Supplied as a centre-trunnion-mounted unit, the SC125X900TC includes the TCM1 bracket (assembly code F-SC125TC) for pivoting applications. The cylinder body length A is 203 mm, giving an approximate extended length of 1103 mm. It uses PT threaded ports (PT1/2) and operates on filtered air from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s per its ISO 6430 class rating.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X900TC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X900TC |
|---|---|
| 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 SC125X900TC
| 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 SC125X900TC Is Used
Conveyor Diverters & Gates
Pivots heavy diverting arms or gate plates on wide conveyor lines, using the centre trunnion mount to swing the cylinder body as the rod extends and retracts.
Press & Clamp Actuation
Delivers up to 11045 N of clamping force at 0.9 MPa for holding large workpieces in machining centres, welding fixtures, or assembly jigs where a pivoting mount is needed.
Agricultural Equipment Positioning
Operates chute deflectors, hopper doors, or boom adjustments on harvesters and spreaders, with the trunnion mount absorbing misalignment in the pivoting linkage.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X900TC the Right Cylinder?
Choose the SC125 bore when your application needs between roughly 6000 N and 11000 N of push force at standard plant air pressures. If your load is lighter, stepping down to the SC100 bore (3927 N push at 0.5 MPa) can reduce actuator size and air consumption. For higher forces, the SC160 bore provides 10053 N at 0.5 MPa. At 900 mm stroke, the 32 mm rod is robust, but any significant side load or off-centre mounting will create a bending moment on the rod bearing—always guide the load externally with rails or rods, or consider a guided cylinder if side forces are unavoidable. To replace an existing cylinder, match five points exactly: 125 mm bore, 900 mm stroke, PT1/2 port thread, centre trunnion (TC) mounting with TCM1 bracket, and confirm the original did not have a magnet (this model has no built-in magnet).
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 SC125X900TC FAQ
At 0.5 MPa (approx. 73 psi) 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, push force reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf. These values assume clean, filtered air at the cylinder port.
Yes, provided the original cylinder was also a 125 mm bore, 900 mm stroke, centre-trunnion-mounted SC series unit with PT ports and no magnet. The F-SC125TC trunnion bracket is included. If your original cylinder had a different mounting (e.g., foot or flange) or a built-in magnet, this exact model code will not be a direct drop-in replacement.
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