Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S is a genuine double-acting standard air cylinder with a Ø125mm bore and 65mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke65 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S
The SC125X65S is a double-acting pneumatic cylinder delivering a push force of 6136 N at 0.5 MPa and up to 11045 N at the maximum operating pressure of 0.9 MPa. With a 65 mm stroke and a 32 mm diameter rod, it suits short-throw, high-force clamping and pressing tasks where space is limited.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be mounted directly onto the tie-rod barrel for contactless position sensing. The adjustable air cushion (28 mm length) decelerates the piston smoothly, and the standard PT1/2 port thread ensures straightforward pneumatic connections.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 65 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 SC125X65S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×65 | 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 SC125X65S Is Used
Heavy-Duty Clamping
The 6136 N push force at 0.5 MPa makes this cylinder ideal for welding jigs and assembly fixtures that require a firm, short-stroke clamp.
Press-Fit Assembly
Use the 65 mm stroke for bearing or bushing insertion, where the built-in magnet provides end-of-stroke confirmation via a DMSG sensor.
Part Rejection Gate
Deploy the SC125X65S as a high-force diverter on a conveyor line, using the adjustable cushion to manage impact at the end of the fast 65 mm travel.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X65S the Right Cylinder?
For applications needing slightly less force, the 100 mm bore SC series provides 3927 N at 0.5 MPa, while stepping up to the 160 mm bore delivers 10053 N. The 65 mm stroke is well within the 1500 mm maximum standard stroke for this bore, so no special stroke considerations apply.
When replacing an existing cylinder, match five points: 125 mm bore, 65 mm stroke, PT1/2 port thread, the built-in magnet (-S), and the basic mounting configuration. This is an ISO 6430 class tie-rod cylinder and is dimensionally shorter than an ISO 15552 profile cylinder, so it is not a drop-in replacement for that standard.
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 SC125X65S 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. The -S suffix indicates a built-in magnet, so you can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the cylinder barrel to detect piston position without any additional brackets.
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