Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 60mm give 4 controllable stop positions across a 100mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 140 mm
- Stroke 260 mm
- Total travel100 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S
The SCT100X40X60S is a tandem multi-position cylinder that delivers four discrete rod stops: 0 mm (retracted), 40 mm, 60 mm, and the full 100 mm total travel. Its 100 mm bore generates a push force of 3927 N per actuated section at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy-duty sorting or positioning tasks.
This model includes an integrated magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke or intermediate position confirmation. It uses a 25 mm diameter piston rod with an M20x1.5 thread, PT1/2 ports, and a 29 mm air cushion, all within a body length of 308 mm (A dimension).
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 40 / 60 mm |
| Total travel | 100 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 40 mm |
| P2 (section 2) | 60 mm |
| P3 (both extended) | 100 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×60 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S Is Used
Heavy Part Sorting Gate
Actuates a diverter gate to four distinct positions for routing large packages or heavy components on a conveyor line, using sensor feedback from the built-in magnet.
Two-Depth Press Operation
Provides a 40 mm pre-press position and a 60 mm final press depth, plus a 100 mm full-extension for part ejection, all from a single compact cylinder unit.
Multi-Stop Clamping Fixture
Positions a heavy welding or assembly fixture at three working heights (40, 60, and 100 mm) with a retracted safe-load position, controlled by the cylinder's discrete stops.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S the Right Cylinder?
Choose the SCT tandem cylinder when an application requires a heavy push force at multiple fixed stopping points without the complexity of two separate cylinders and external stops. This 100 mm bore model provides a per-section push force of 3927 N at 0.5 MPa; if a lighter, more compact solution is acceptable, stepping down to the 80 mm bore (2513 N push) can reduce air consumption and physical size. Ensure the replacement matches the 100 mm bore, both the 40 mm and 60 mm strokes, PT port thread, and the built-in magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 60 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X40X60S FAQ
This model provides four distinct mechanical stop positions: 0 mm (fully retracted), 40 mm (first section extended), 60 mm (second section extended), and 100 mm (both sections fully extended). The positions are fixed by the cylinder's two stroke lengths and are not infinitely adjustable.
No, like all standard pneumatic cylinders, the SCT does not lock or hold its position upon pressure loss or valve centering; the rod can drift. If a load must be mechanically held at a stop without live pressure, an external rod brake or pilot-operated check valve is required.
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