Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC is a genuine double-acting standard air cylinder with a Ø125mm bore and 75mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke75 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC
The SC125X75STC is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa, making it suitable for heavy-duty clamping and pressing tasks. Its 125 mm bore and 75 mm stroke combine with a 32 mm piston rod and PT1/2 ports for robust air flow.
This model includes a built-in magnet for mounting CMSG/DMSG/EMSG sensors directly on the tie-rod barrel, enabling precise end-of-stroke detection. The centre trunnion mount (TC) with the included TCM1 bracket allows the cylinder to pivot, ideal for swinging or articulating loads without side-load binding.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 75 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 SC125X75STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×75 | 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 SC125X75STC Is Used
Heavy Part Ejection
The 6136 N push force at 0.5 MPa powerfully ejects large, heavy parts from conveyor lines or stamping dies, ensuring reliable separation in automated cells.
Articulating Clamp Fixture
With the TC centre trunnion mount, this cylinder pivots to apply clamping force at an angle, securing large weldments or castings in robotic welding and assembly jigs.
Material Deflection Test
Delivers controlled, high-force linear motion for bend-testing beams or structural components, with magnetic sensors confirming full stroke completion for quality data logging.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X75STC the Right Cylinder?
Choose the SC125 for applications needing over 6100 N of force at standard plant pressure. If your load requires less force, stepping down to the SC100 bore reduces push force to 3927 N at 0.5 MPa, potentially saving energy and space. For higher force demands, the SC160 bore provides 10053 N at the same pressure.
To ensure a direct replacement, match five key points: 125 mm bore, 75 mm stroke, PT port thread, centre trunnion (TC) mounting accessory, and the built-in magnet (-S) for sensor compatibility. The F-SC125TC trunnion bracket is supplied with this model.
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 SC125X75STC FAQ
At 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 reaches 11045 N. The theoretical maximum force at 1.0 MPa is 1251 kgf.
Yes, if the existing cylinder is a tie-rod design with a 125 mm bore, 75 mm stroke, PT1/2 ports, and a centre trunnion mount. The built-in magnet allows you to add or retain magnetic reed switches for position sensing. Always verify the trunnion pin diameter and bracket dimensions match your machine.
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