Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S 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 Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1150 mm
- Stroke 250 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S
The SCT80X150X50S is a tandem multi-position pneumatic cylinder that provides four fixed rod positions: 0 mm (fully retracted), 50 mm, 150 mm, and the total travel of 200 mm. Each actuated piston section generates a push force of 2513 N at 0.5 MPa, rising to 4523 N at 0.9 MPa, making it a robust solution for mid-stroke sorting or two-depth insertion tasks.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the 80 mm bore tie-rod barrel for end-of-stroke or intermediate position confirmation. The 25 mm diameter piston rod and 28 mm adjustable air cushion at each end ensure smooth deceleration, while the body length A(SCT) of 296 mm provides a compact envelope for the combined stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 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 | PT3/8 |
| 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, 28 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80X150X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | 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 SCT80X150X50S Is Used
Two-Way Diverter Gate
Uses the 50 mm and 150 mm positions to route packages to two separate conveyor lanes, with 0 mm as the home position and 200 mm for a third reject lane.
Dual-Depth Press Insertion
The 50 mm stop sets a shallow press depth for a locating pin, while the 150 mm position completes a full-depth insertion, all from one compact cylinder.
Multi-Stop Part Feeding
Advances components to two distinct workstations in a linear transfer line, using the 50 mm and 150 mm stops for precise positioning under a machining head.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X50S the Right Cylinder?
Choose this SCT when a process needs four distinct stop points from a single actuator, eliminating the complexity and plumbing of two separate cylinders with external hard stops. The 150 mm and 50 mm stroke combination is ideal for a primary long travel with a secondary short positioning move. If a higher per-section force is required, stepping up to the SCT100 series provides 3927 N of push at 0.5 MPa.
For replacement, match an AirTAC SCT with an 80 mm bore, 150 mm first stroke, 50 mm second stroke, PT port thread, basic mounting, and the -S magnet option. With the 150 mm section stroke, ensure the guided load is supported if significant side forces are present to prevent rod bending.
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 SCT80X150X50S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (section 2 extended), 150 mm (section 1 extended), and 200 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely variable.
Yes, in applications requiring two fixed extension points. The SCT80X150X50S combines two piston sections on a single rod line, reducing mounting hardware and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the 80 mm bore, 150 mm and 50 mm strokes, PT port thread, and the -S magnet option.
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