Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S is a genuine double-acting standard air cylinder with a Ø125mm bore and 245mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke245 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S
The SC125X245S is a double-acting pneumatic cylinder delivering 6136 N push force at 0.5 MPa and up to 11045 N at 0.9 MPa, making it suitable for heavy pressing, clamping, and forming operations. Its 32 mm diameter piston rod and 28 mm adjustable air cushion provide robust guidance and smooth end-of-stroke deceleration for the 245 mm stroke.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for non-contact position feedback. As an ISO 6430 class tie-rod cylinder, it offers a compact body length of 203 mm plus stroke, ideal where space is limited compared to full ISO 15552 profiles.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 245 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 SC125X245S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×245 | 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 SC125X245S Is Used
Heavy Part Transfer
Moves large castings or weldments between stations on roller conveyors, using the 6136 N push force at 0.5 MPa to overcome inertia reliably.
Hydraulic Press Assist
Provides rapid advance and retraction of press platens in composite molding, with the magnet confirming full-open and full-closed positions.
Structural Testing Rigs
Applies controlled cyclic loads to beams or frames, where the 11045 N maximum thrust and sensor feedback enable precise displacement monitoring.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X245S the Right Cylinder?
For higher force at the same pressure, step up to the SC160 bore (10053 N at 0.5 MPa); for a lighter, faster-moving load, the SC100 bore (3927 N at 0.5 MPa) may be more economical. The 245 mm stroke is within the 1500 mm maximum standard range for this bore, so it is a standard catalogue item. When replacing, match exactly: 125 mm bore, 245 mm stroke, PT port thread, basic mounting, and the -S magnet option 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 SC125X245S 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 at 1.0 MPa is 1251 kgf.
Yes. The -S suffix indicates a built-in magnet in the piston, so you can clamp CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the tie-rod barrel without any additional brackets or modifications.
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