Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S is a genuine double-acting standard air cylinder with a Ø125mm bore and 30mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke30 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S
The SC125X30S is a double-acting pneumatic cylinder delivering substantial force in a compact 30 mm stroke. At 0.5 MPa it pushes with 6136 N and pulls with 5734 N, rising to 11045 N push at the maximum operating pressure of 0.9 MPa, making it suitable for short-throw clamping and pressing operations.
This model includes a built-in magnet (-S suffix) so CMSG, DMSG, or EMSG reed and solid-state sensors can be mounted directly onto the tie-rod barrel for piston position detection. The 125 mm bore uses a 32 mm diameter rod with M27x2 threads, PT1/2 ports, and a 28 mm adjustable air cushion to decelerate the piston smoothly at end of stroke.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 30 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 SC125X30S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×30 | 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 SC125X30S Is Used
Short-Stroke Clamping
The 30 mm stroke and 11045 N max push force at 0.9 MPa make the SC125X30S ideal for pneumatic clamping fixtures in machining and welding cells where a fast, high-force hold is required.
Press-Fit Assembly
Delivers controlled, repeatable force for pressing bearings, bushings, or pins into housings. The built-in magnet allows end-of-stroke confirmation via barrel-mounted sensors.
Heavy Part Ejection
Used to eject or divert heavy components from a conveyor or chute. The adjustable cushion protects the cylinder from impact damage during rapid short-stroke cycling.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X30S the Right Cylinder?
Choose the SC125 for applications needing over 6000 N of push force at standard plant pressure; if your load requires less than 4000 N, stepping down to the SC100 bore (3927 N push at 0.5 MPa) can reduce air consumption and physical size. For strokes longer than 300 mm, consider external guides or a guided cylinder to protect the 32 mm rod from bending under side load.
When replacing an existing cylinder, match five key points: 125 mm bore, 30 mm stroke, PT1/2 port thread, the built-in magnet for sensor compatibility, and the basic (no bracket) mounting configuration. The SC is a tie-rod cylinder and is not dimensionally interchangeable 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 SC125X30S FAQ
At 0.7 MPa (7 bar) supply pressure, the SC125 bore generates 8590 N of push force and 5734 N of pull force. The maximum operating pressure is 1.0 MPa, and the proof pressure is 1.5 MPa.
Yes. The -S suffix in SC125X30S indicates a built-in magnet on the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the cylinder's tie-rod barrel to detect piston position without any additional brackets.
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