Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S
The AirTAC Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S is a genuine double-acting standard air cylinder with a Ø125mm bore and 85mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke85 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
About the Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S
The AirTAC SC125X85S is a double-acting single-rod pneumatic cylinder delivering 6136 N of push force at 0.5 MPa (11045 N at the maximum operating pressure of 0.9 MPa). Its 85 mm stroke is well within the 1500 mm maximum standard stroke for the 125 mm bore, making this a readily available standard configuration.
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 contactless position sensing. The cylinder uses a 32 mm diameter piston rod with an M27x2 thread and PT1/2 ports, and features an adjustable air cushion (28 mm length) to decelerate the piston smoothly at end of stroke.
Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S Technical Specifications
| Model | Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 85 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 SC125X85S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×85 | 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 SC125X85S Is Used
Heavy Part Transfer
The 6136 N push force at 0.5 MPa easily shifts large castings or weldments between conveyor stations, with the built-in magnet confirming end-of-stroke position.
Clamping & Fixturing
Delivers up to 11045 N of clamping force for CNC fixtures or welding jigs. The -S magnet enables sensor feedback to prevent machine cycling on an unclamped part.
Palletising Systems
Pushes heavy pallets or slip sheets into position in automated palletisers. The adjustable cushion protects the 32 mm rod and end cap from impact damage at high cycle rates.
Is the Airtac AIRTAC SC125-160 Standard Cylinder SC125X85S the Right Cylinder?
Choose the SC125 bore when your application requires between 6136 N and 11045 N of pneumatic 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 heavier loads, the SC160 bore provides 10053 N at the same 0.5 MPa pressure.
To ensure a correct replacement, match five key points: 125 mm bore, 85 mm stroke, PT port thread, the built-in magnet for sensor compatibility, and the basic (no bracket) mounting configuration. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC125X85S FAQ
At 0.5 MPa the theoretical push force is 6136 N. At the maximum operating pressure of 0.9 MPa it reaches 11045 N. The theoretical maximum at 1.0 MPa is 1251 kgf.
Yes. The -S suffix denotes a built-in magnet, making the SC125X85S directly compatible with AirTAC CMSG, DMSG, and EMSG series sensors that clamp onto the tie-rod barrel.
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