Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 50mm give 4 controllable stop positions across a 200mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1150 mm
- Stroke 250 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50
The SCT100X150X50 tandem cylinder provides four fixed rod positions for sequencing tasks: fully retracted (0 mm), 50 mm, 150 mm, and the total extended travel of 200 mm. Each 100 mm bore piston section generates 3927 N of push force at 0.5 MPa, offering substantial power for heavy-duty multi-stop material handling or clamping fixtures.
This tie-rod cylinder uses a 25 mm diameter rod with PT1/2 ports and a 29 mm adjustable air cushion to manage end-of-stroke deceleration. The body length A(SCT) is 308 mm, making it a compact alternative to two separate actuators when a sequence of distinct hard stops is required.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 150 / 50 mm |
| Total travel | 200 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) | 150 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 200 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 SCT100X150X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×150 | 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 SCT100X150X50 Is Used
Two-Stage Part Diverting
Uses the 50 mm and 150 mm stop positions to divert parts to two separate conveyor lanes from a single feed point, controlled by pressurizing each section independently.
Sequential Clamping
Provides a low-force clamp at the 50 mm position and a high-force clamp at the 200 mm total travel position, ideal for holding parts during two-step assembly processes.
Multi-Depth Pressing
Achieves two distinct pressing depths in a fixture without adjusting hard stops, using the 150 mm stroke for a primary press and the combined 200 mm stroke for a secondary operation.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X50 the Right Cylinder?
Choose the SCT100X150X50 when you need four definite stopping points without the complexity of servo controls or external limit switches. It integrates two piston sections on a single rod line, saving mounting space compared to two individual SC cylinders. If your thrust requirement is lower, stepping down to the 80 mm bore reduces per-section push force to 2513 N at 0.5 MPa.
For a direct replacement, match the 100 mm bore, the 150 mm and 50 mm section strokes, PT port thread, and basic mounting configuration. Since both strokes are under 300 mm, rod bending under side load is typically not a primary concern, but always align the load axially for maximum seal life.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 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 SCT100X150X50 FAQ
This 4-position cylinder stops at 0 mm (fully retracted), 50 mm (stroke2 extended), 150 mm (stroke1 extended), and 200 mm (both strokes extended). The positions are discrete and selected by pressurizing the two piston sections individually or together.
The force is generated per actuated piston section and matches a standard SC100 cylinder. At 0.5 MPa, a single section provides 3927 N push and 3681 N pull. The two sections do not add force for a multi-position move; they simply extend the rod to different fixed lengths.
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