Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 50mm give 4 controllable stop positions across a 250mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1200 mm
- Stroke 250 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S
The SCT100X200X50S is a double-acting multi-position cylinder that delivers four fixed rod positions from its tandem piston layout: fully retracted (0 mm), 50 mm, 200 mm, and the combined total travel of 250 mm. Each 100 mm bore section generates a substantial 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty material handling tasks that require distinct, repeatable stop points without complex servo controls.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The cylinder uses a 25 mm diameter rod with an M20x1.5 thread, PT 1/2 ports, and a 29 mm adjustable air cushion at each end. Its body length A(SCT) is 308 mm, providing a robust platform for industrial sequencing operations.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 200 / 50 mm |
| Total travel | 250 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) | 200 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 250 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 SCT100X200X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT100X200X50S Is Used
Two-Stage Part Transfer
Advances a heavy pallet 200 mm to a main workstation, then uses the final 50 mm stroke for a precise secondary push into a locking fixture or clamp.
Multi-Depth Pressing
Provides a 200 mm rapid approach followed by a controlled 50 mm pressing stroke, or a full 250 mm stroke for deep forming operations, all from one actuator.
Diverting Gate Actuation
Positions a diverter gate at 0 mm (lane A), 50 mm (lane B), or 200 mm (lane C), with the 250 mm position serving as a maintenance lockout location.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X50S the Right Cylinder?
Choose the SCT100X200X50S when your application needs four specific mechanical stops from a single, compact unit, eliminating the complexity of two separate cylinders and their mounting hardware. The 200 mm primary stroke and 50 mm secondary stroke create an asymmetric position set ideal for a long advance with a short final positioning step. If the 3927 N push force at 0.5 MPa is more than required, stepping down to an 80 mm bore reduces per-section force to 2513 N, which can lower air consumption. For replacement, match the 100 mm bore, both the 200 mm and 50 mm strokes, PT port thread, and the integrated magnet sensor option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 50 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 SCT100X200X50S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 50 mm (section 2 extended), 200 mm (section 1 extended), and 250 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder ports.
Yes, it is designed for exactly that. The SCT100X200X50S combines two strokes in one rod line, saving space and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the 100 mm bore, 200 mm and 50 mm strokes, PT ports, and the -S magnet option for sensor compatibility.
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