Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S is a genuine double-acting standard air cylinder with a Ø125mm bore and 650mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke650 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S
The AirTAC SC125X650S is a double-acting single-rod tie-rod cylinder with a 125 mm bore, 650 mm stroke, and a built-in magnet for barrel-mounted sensors. At 0.5 MPa air pressure it generates 6136 N pushing force and 5734 N pulling force, rising to 11045 N push at the 0.9 MPa maximum operating pressure. The piston rod is 32 mm diameter with an M27×2 rod-end thread, and the adjustable air cushion is 28 mm long at each end.
This model includes the -S magnet option, so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for non-contact position sensing. The standard PT1/2 ports and TPU seals suit normal industrial air at -20 to +70 °C. With a 650 mm stroke, the extended length is approximately 853 mm (body length A=203 mm plus stroke), making it a mid-stroke workhorse for pressing, clamping, and material-handling tasks.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 650 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 SC125X650S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×650 | 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 SC125X650S Is Used
Pallet & Crate Handling
The 6136 N push force at 0.5 MPa easily lifts, stops, or transfers loaded pallets and heavy crates on roller conveyors. The 650 mm stroke gives enough reach for cross-transfer stations.
Heavy Press & Clamp Fixtures
Delivers up to 11045 N at 0.9 MPa for assembly presses, riveting stations, and weld-fixture clamping. The built-in magnet enables end-of-stroke confirmation with CMSG sensors.
Diverter Gates & Chutes
The 32 mm rod and tie-rod construction handle the repetitive impact of diverting bulk materials or packages. Adjustable cushioning softens the end-of-stroke shock for longer seal life.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X650S the Right Cylinder?
Choose the SC125 bore when your application needs roughly 6000–11000 N of force from standard shop air. If you can accept a smaller actuator, the SC100 bore delivers 3927 N push at 0.5 MPa in a lighter package; if you need more force, step up to the SC160 bore at 10053 N push. For this 650 mm stroke, confirm the rod is adequately guided—a 32 mm rod extended over half a metre can bend under side load. Use an external linear guide or a guided cylinder if the load is not purely axial.
When replacing an existing cylinder, match five points: 125 mm bore, 650 mm stroke, PT1/2 port thread, the built-in magnet (-S), and the basic (no bracket) mounting. This SC tie-rod cylinder is shorter than an ISO 15552 cylinder and is not dimensionally interchangeable with 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 SC125X650S FAQ
At 0.5 MPa the push force is 6136 N. At 0.7 MPa it is 8590 N, and at the maximum operating pressure of 0.9 MPa it reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf. Pull force (retract stroke) is slightly lower due to the rod area: 5734 N at 0.5 MPa.
Yes. The -S suffix in SC125X650S means a magnet is built into the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel without any additional brackets or modifications.
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