Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S is a genuine double-acting standard air cylinder with a Ø125mm bore and 620mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke620 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S
The SC125X620S is a double-acting single-rod pneumatic cylinder delivering 6136 N push and 5734 N pull at 0.5 MPa, rising to 11045 N push at 0.9 MPa. With a 620 mm stroke and a robust 32 mm piston rod, this model suits mid-to-long linear movements in heavy industrial tooling. The built-in magnet (suffix -S) allows CMSG/DMSG/EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke detection.
This ISO 6430 class cylinder uses adjustable air cushioning (28 mm cushion length) to decelerate the piston smoothly, reducing impact noise and vibration. The body length A is 203 mm, giving an approximate extended length of 823 mm. Operating on filtered air from 0.15 to 1.0 MPa, the SC125X620S is a genuine AirTAC actuator configured for sensor-ready automation.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 620 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 SC125X620S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×620 | 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 SC125X620S Is Used
Pallet Transfer
Moves heavy pallets or skids across roller conveyors, using the 6136 N push force to shift loads reliably in distribution centers.
Press-Fit Assembly
Provides the high force (up to 11045 N) needed for pressing bearings, bushings, or pins into heavy housings with controlled, cushioned motion.
Product Diverting
Actuates heavy-duty diverter gates on wide conveyor lines, with the magnetic piston confirming gate position via barrel-mounted sensors.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X620S the Right Cylinder?
Choose the SC125 bore when your application needs between 6136 N and 11045 N of push force. If your load is lighter, stepping down to the SC100 bore (3927 N at 0.5 MPa) can reduce air consumption and physical size. For higher forces, the SC160 bore offers 10053 N at 0.5 MPa. At a 620 mm stroke, ensure the 32 mm rod is adequately supported against side loads; consider an external linear guide if bending moments are present. For replacement, match bore, stroke, PT port thread, the basic mounting style, and the -S magnet option to ensure 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 SC125X620S FAQ
At 0.5 MPa, it provides 6136 N extending and 5734 N retracting. At the maximum operating pressure of 0.9 MPa, the extending force increases to 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes, the -S suffix indicates a built-in magnet in the piston. You can clamp CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel to detect piston position without additional brackets.
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