Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 240mm and 60mm give 4 controllable stop positions across a 300mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1240 mm
- Stroke 260 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S
The SCT100X240X60S is a tandem multi-position cylinder that delivers four fixed rod positions from its two-section design: 0 mm (fully retracted), 60 mm, 240 mm, and the combined total travel of 300 mm. Each 100 mm bore piston section generates a powerful 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty sorting or multi-stage clamping operations where distinct mechanical stops are required.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The 25 mm diameter rod provides robust rigidity, and the body length A(SCT) is 308 mm. With a 29 mm adjustable air cushion on each section, the cylinder decelerates high inertial loads smoothly at the end of each discrete stop.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 240 / 60 mm |
| Total travel | 300 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) | 240 mm |
| P2 (section 2) | 60 mm |
| P3 (both extended) | 300 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 SCT100X240X60S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×240 | 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 SCT100X240X60S Is Used
Four-Position Diverter Gate
Uses the four discrete stops (0, 60, 240, 300 mm) to route packages or materials to four separate conveyor lanes. The built-in magnet confirms each position, ensuring the gate aligns perfectly every cycle.
Multi-Depth Pressing Station
Provides two distinct pressing depths (60 mm and 240 mm) plus a combined deep stroke (300 mm) for complex forming or assembly tasks. The 3927 N per-section force handles substantial pressing loads at standard line pressure.
Staged Clamping for Welding Fixtures
Clamps a part lightly at 60 mm for tacking, then fully at 240 mm for the main weld. The 0.9 MPa thrust of 7068 N per section provides immense holding power for heavy fabrications.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X240X60S the Right Cylinder?
Choose the SCT when your application needs two or more hard stops without the complexity of servo controls or multiple individual cylinders. This 100 mm bore model is a step up from the 80 mm bore (2513 N push at 0.5 MPa), offering significantly more force for heavy payloads. For a direct replacement, match the 100 mm bore, both 240 mm and 60 mm strokes, PT port thread, basic mounting, and the -S magnet option.
With a 240 mm stroke on the first section, consider external guide rods or a linear rail if the load applies significant side force or if the rod is fully extended to 300 mm. The long extension can create a bending moment on the 25 mm rod, so guiding ensures long seal life and consistent positioning accuracy.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 240 + 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 SCT100X240X60S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 60 mm (section two extended), 240 mm (section one extended), and 300 mm (both sections extended). The positions are selected by pressurizing the appropriate cylinder sections, not by infinitely variable control.
Yes, in applications requiring two fixed stroke lengths from a single rod line. The SCT100X240X60S combines a 240 mm and a 60 mm stroke in one tandem body, saving space and simplifying plumbing compared to two individual cylinders. Ensure the replacement matches the 100 mm bore, PT ports, and the -S magnet if sensor feedback is needed.
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