Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 146mm give 4 controllable stop positions across a 196mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 150 mm
- Stroke 2146 mm
- Total travel196 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146
The SCT100X50X146 is a tie-rod multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 50 mm, 146 mm, and a total extended length of 196 mm. Each of its two 100 mm bore piston sections generates 3927 N of push force at 0.5 MPa, allowing the unit to handle substantial loads at intermediate stops without needing two separate actuators.
Built with a 25 mm diameter rod and PT1/2 ports, this tandem cylinder uses an adjustable air cushion (29 mm length) to decelerate the piston smoothly at each stroke end. The body length A(SCT) is 308 mm, giving a compact footprint relative to the total travel. At the maximum operating pressure of 0.9 MPa, the thrust per section reaches 7068 N.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 50 / 146 mm |
| Total travel | 196 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) | 50 mm |
| P2 (section 2) | 146 mm |
| P3 (both extended) | 196 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 SCT100X50X146
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×146 | 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 SCT100X50X146 Is Used
Two-Depth Pallet Stop
Controls a heavy-duty pallet stop with a retracted position, a partial-height stop at 50 mm for small pallets, and a full-height stop at 146 mm for large pallets, plus a fully raised bypass position at 196 mm.
Multi-Level Clamping
Applies a high clamping force at two distinct workpiece thicknesses. The rod extends to 50 mm for thin parts and 146 mm for thick parts, using the 3927 N per-section force for secure holding.
Sorting Gate Actuator
Operates a three-lane diverter gate on a conveyor. The cylinder positions the gate at 0 mm for lane one, 50 mm for lane two, and 146 mm for lane three, with a full 196 mm stroke for maintenance access.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X146 the Right Cylinder?
Choose the SCT100X50X146 when your application requires a heavy load to stop precisely at 50 mm and 146 mm positions, eliminating the complexity of external hard stops or dual-cylinder sequencing. If your force requirements are lower, stepping down to an 80 mm bore reduces the per-section push force to 2513 N at 0.5 MPa, which can save energy and space. For a direct replacement, match the 100 mm bore, both strokes (50 mm and 146 mm), PT port thread, and basic mounting configuration. Since the total travel is under 300 mm, rod side-loading is minimal in standard mounting orientations.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 146 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 SCT100X50X146 FAQ
This model provides four discrete positions: 0 mm (fully retracted), 50 mm (first section extended), 146 mm (second section extended), and 196 mm (both sections extended, total travel). The positions are fixed by the stroke lengths and are not infinitely adjustable.
No, like all standard pneumatic cylinders, the SCT100X50X146 will not lock or hold its position if air pressure is exhausted or lost. The piston can drift. To safely hold a load at an intermediate stop without live pressure, you must add an external mechanical rod lock or a pilot-operated check valve.
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