Airtac AIRTAC SC125-160 Standard Cylinder SC125X350STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X350STC 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 SC125X350STC
The AirTAC SC125X350STC is a double-acting single-rod pneumatic cylinder delivering a push force of 6136 N at 0.5 MPa (up to 11045 N at 0.9 MPa). With a 32 mm diameter rod and a 350 mm stroke, this model is built for heavy linear actuation tasks that require a pivoting mount.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and the TC centre trunnion mount (supplied with TCM1 bracket, part code F-SC125TC) allows the cylinder body to pivot during operation. The adjustable air cushion (28 mm length) decelerates the piston smoothly at end-of-stroke, protecting the assembly from impact damage.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X350STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X350STC |
|---|---|
| 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 SC125X350STC
| 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 SC125X350STC Is Used
Agricultural Machinery
Operates sorting gates and chute diverters on harvesters and conveyors. The trunnion mount lets the cylinder pivot as the gate swings, while the 6136 N push force handles heavy crop loads.
Heavy Press Guarding
Drives interlocking safety guards on large stamping presses. The built-in magnet allows CMSG sensors to confirm the guard is fully closed before the press cycle starts, meeting safety PLC requirements.
Wastewater Valve Actuation
Powers large quarter-turn butterfly valves in treatment plants. The TC mount accommodates the arc motion of the valve linkage, and the 11045 N maximum thrust ensures reliable operation even with scaled or sticky valve seats.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X350STC the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N and 11045 N of push force (0.5-0.9 MPa). If your load is lighter, stepping down to the SC100 bore saves space and air consumption while still providing 3927 N at 0.5 MPa. For heavier demands, the SC160 bore offers 10053 N at the same pressure.
For this 350 mm stroke, ensure side loads are minimal or use an external guide system—the 32 mm rod can experience bending stress under off-axis forces. For direct replacement, match five points: 125 mm bore, 350 mm stroke, PT port thread, TC centre trunnion mount, and the -S magnet for sensor compatibility.
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 SC125X350STC FAQ
At the standard operating pressure of 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
No, the AirTAC SC series is a tie-rod cylinder that is shorter in overall length than an ISO 15552 cylinder, so it is not dimensionally interchangeable. It replaces another AirTAC SC125 tie-rod cylinder with matching bore, stroke, PT ports, TC mount, and magnet. The 125-250 bore range is built to ISO 6430 class standards.
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