Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S is a genuine double-acting standard air cylinder with a Ø125mm bore and 45mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke45 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S
The SC125X45S 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. With a 45 mm stroke and a robust 32 mm piston rod, it is built for short, high-force clamping, pressing, and positioning tasks where space along the cylinder axis is limited.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to mount directly on the tie-rod barrel for non-contact position sensing. The body length A is 203 mm, and the adjustable air cushion (28 mm length) decelerates the piston smoothly at end of travel. The standard PT1/2 ports and M27x2 rod thread ensure straightforward pneumatic connections.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 45 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 SC125X45S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×45 | 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 SC125X45S Is Used
Heavy-Duty Clamping
Applies 11045 N at 0.9 MPa to secure large weldments or castings during machining, with sensor confirmation of the clamped position.
Short-Stroke Pusher
Ejects heavy parts from a conveyor line with a 45 mm stroke, using the adjustable cushion to manage impact at high cycle rates.
Press-Fit Assembly
Delivers controlled force for installing bearings or bushings, with magnetic sensors verifying full insertion at the end of the stroke.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X45S the Right Cylinder?
For higher force at the same pressure, step up to the SC160 bore (10053 N push at 0.5 MPa). If 6136 N exceeds the requirement, the SC100 bore provides 3927 N push at 0.5 MPa, reducing air consumption. This is a tie-rod cylinder, shorter than an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SC125 cylinders or equivalent tie-rod designs. When replacing, match five points: 125 mm bore, 45 mm stroke, PT1/2 port thread, basic mounting (no brackets), and the built-in magnet (-S) 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 SC125X45S FAQ
At 0.5 MPa the push force is 6136 N, and at 0.7 MPa it is 8590 N. The maximum operating push force at 0.9 MPa is 11045 N. The theoretical pull force at 0.5 MPa is 5734 N, accounting for the 32 mm rod area.
Yes. The -S suffix indicates a built-in magnet on the piston. This allows standard AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors to clamp onto the cylinder barrel for reliable end-of-stroke or mid-stroke position detection.
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