Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 150mm give 4 controllable stop positions across a 350mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1200 mm
- Stroke 2150 mm
- Total travel350 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S
The SCT80X200X150S is a double-acting multi-position tandem cylinder that delivers four discrete rod stops: 0 mm (retracted), 150 mm, 200 mm, and the full 350 mm extended position. Each 80 mm bore section generates 2513 N of push force at 0.5 MPa, with a 25 mm diameter rod and PT3/8 ports, making it a robust choice for mid-stroke sorting or two-depth clamping operations.
This model includes a built-in magnet (suffix -S), allowing CMSG, DMSG, or EMSG sensors to be mounted directly on the tie-rod barrel for non-contact position sensing at any of the four stops. The body length A(SCT) is 296 mm, and the adjustable pneumatic cushion at each end is 28 mm long, helping to manage end-of-stroke deceleration even under moderate loads.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 200 / 150 mm |
| Total travel | 350 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) | 200 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 350 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 SCT80X200X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT80X200X150S Is Used
Two-Stage Part Diverting
Uses the 150 mm and 200 mm stops to route parts to two separate conveyor lanes from a single feed point, with the 350 mm position for a reject or third lane.
Dual-Depth Press Insertion
Pressing a bushing to a 150 mm partial depth, then a second component to the full 200 mm depth in one automated cycle, controlled by pressurizing each section sequentially.
Multi-Stop Gate Actuation
Operating a material gate with three open positions: a 150 mm partial opening, a 200 mm mid-flow, and a 350 mm full-open, all with sensor feedback via the built-in magnet.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X200X150S the Right Cylinder?
Select the SCT80X200X150S when you need four fixed mechanical positions without the complexity of servo control or multiple cylinders. The 80 mm bore offers a step up in force from the 63 mm (1559 N push at 0.5 MPa), while the 200 mm and 150 mm stroke combination provides two distinct intermediate stops for sequencing. If your load requires more thrust, the 100 mm bore delivers 3927 N per section.
For replacement, match an AirTAC SCT80 with both 200 mm and 150 mm strokes, PT port thread, and the -S magnet option. With a 200 mm stroke on the first section, consider external guides or a rod alignment coupler if the load is offset, as the extended rod length can increase side-load sensitivity.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 150 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 SCT80X200X150S FAQ
It has four discrete mechanical stops: 0 mm (fully retracted), 150 mm (stroke 2), 200 mm (stroke 1), and 350 mm (both strokes extended). Each stop is reached by pressurizing the corresponding piston section or both together.
Yes, the -S suffix indicates a built-in magnet, so AirTAC CMSG, DMSG, or EMSG reed and solid-state sensors can be clamped to the tie-rod barrel to detect each of the four positions.
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