Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 165mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke165 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC
The SC125X165STC is a robust double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa, scaling up to 11045 N at the maximum operating pressure of 0.9 MPa. Its 32 mm diameter piston rod and 28 mm adjustable air cushion are engineered for heavy-duty industrial tasks requiring controlled deceleration.
This configuration includes a built-in magnet for mounting CMSG/DMSG/EMSG sensors directly on the tie-rod barrel, and ships with the F-SC125TC centre trunnion bracket for pivoting motion. The 165 mm stroke is well within the 1500 mm maximum standard range for this bore, making it a readily available assembly.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 165 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 SC125X165STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×165 | 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 SC125X165STC Is Used
Material Handling Pivot
Operates a pivoting diverter arm on a heavy conveyor line, using the centre trunnion mount to swing loads between two lanes.
Clamping & Fixturing
Provides high-force clamping on a welding fixture, with magnetic sensors confirming full extension and retraction for safety interlocks.
Agricultural Equipment
Controls the angle of a heavy tillage tool bar, with the trunnion absorbing the arc motion and the magnet providing position feedback to the cab.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X165STC the Right Cylinder?
For applications needing more force, stepping up to the SC160 bore provides 10053 N of push at 0.5 MPa, while the SC100 bore offers a more compact option at 3927 N. The centre trunnion mount (TC) is ideal for applications where the cylinder body must pivot during its stroke arc.
When replacing an existing cylinder, verify five key points: 125 mm bore, 165 mm stroke, PT port thread, the TC centre trunnion mounting accessory, and the integrated magnet for sensor compatibility. As a tie-rod design, the SC series is dimensionally shorter than a typical ISO 15552 cylinder and is not a direct drop-in replacement for that profile.
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 SC125X165STC FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N and the pull force on the retract stroke is 5734 N. These forces are based on the 125 mm bore and 32 mm rod diameter.
No. The SC125X165STC is a double-acting cylinder that requires continuous air pressure to maintain its position. If pressure is lost or the directional valve is centered, the piston can drift. A pilot-operated check valve or external rod lock must be added to safely hold a suspended load.
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