Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S is a genuine double-acting standard air cylinder with a Ø125mm bore and 35mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke35 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S
The SC125X35S is a double-acting pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). Its 35 mm stroke suits short-throw clamping, pressing, and ejector duties where high force in a compact cycle length is essential.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection. The 125 mm bore uses a 32 mm piston rod with M27x2 male threads and PT1/2 ports, and features a 28 mm adjustable air cushion to decelerate the high-inertia load smoothly.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 35 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 SC125X35S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×35 | 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 SC125X35S Is Used
Heavy-Duty Clamping
The 6136 N force at 0.5 MPa securely clamps large weldments, castings, or structural assemblies during machining or fabrication.
Die-Cushion Ejectors
Short 35 mm stroke with 11045 N peak thrust ejects heavy parts from die-casting or stamping tools, with adjustable cushioning to protect the tool.
Pallet Stop & Divert
Magnetic piston sensing confirms retracted/extended position for high-force pallet stops or diverter gates on heavy-duty conveyor lines.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X35S the Right Cylinder?
For applications needing less force, stepping down to the 100 mm bore provides 3927 N at 0.5 MPa. If the 35 mm stroke is insufficient, the SC125 series supports standard strokes up to 1500 mm. This is an ISO 6430 class tie-rod cylinder, not an ISO 15552 profile unit, so dimensional interchangeability is limited to other AirTAC SC125 cylinders or tie-rod designs matching the same bore, stroke, PT1/2 port, and M27x2 rod thread.
When replacing, match five points: 125 mm bore, 35 mm stroke, PT port thread, basic mounting (no bracket), 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 SC125X35S FAQ
At 0.7 MPa (7 bar) the theoretical push force is 8590 N. The maximum operating push force at 0.9 MPa is 11045 N. Pull force at 0.5 MPa is 5734 N due to the 32 mm rod area.
Yes. The -S suffix designates a built-in magnet on the piston. You can use AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors, which clamp onto the tie-rod barrel without additional brackets.
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