Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S
The AirTAC SCT80X100X50S is a double-acting multi-position tandem cylinder that provides four distinct mechanical stop positions along its stroke: 0 mm (fully retracted), 50 mm, 100 mm, and the total travel of 150 mm. Each piston section delivers a push force of 2513 N at 0.5 MPa, making it a robust choice for sorting or diverting tasks requiring intermediate stops without complex servo controls.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors for position feedback. The 80 mm bore cylinder uses a 25 mm diameter rod, PT3/8 ports, and features an adjustable air cushion length of 28 mm to decelerate the load smoothly at each end of the total stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 100 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 150 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 SCT80X100X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT80X100X50S Is Used
Multi-Chute Sorting
Divert packages to four different conveyor lines by pressurizing the cylinder sections in sequence to reach the 50, 100, or 150 mm stop positions.
Two-Depth Pressing
Perform a two-stage pressing operation where the first stage stops at 100 mm for alignment and the second stage extends fully to 150 mm for final insertion.
Staged Part Transfer
Move a workpiece through three distinct positions on a linear transfer line, using the 50 mm and 100 mm stops for intermediate processing stations.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50S the Right Cylinder?
Select the SCT80X100X50S when your application needs a compact, all-pneumatic solution for four fixed positions, avoiding the cost and complexity of two separate cylinders with external stops. If your force requirement is lower, stepping down to the 63 mm bore offers 1559 N of push per section at 0.5 MPa. For a direct replacement, match the 80 mm bore, both strokes of 100 mm and 50 mm, the built-in magnet, and PT port thread. For strokes over 300 mm total, evaluate the rod's side-load capacity and consider adding an external guide to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT80X100X50S FAQ
This tandem cylinder provides four discrete mechanical stop positions: 0 mm, 50 mm, 100 mm, and 150 mm. These are achieved by pressurizing the first section, the second section, or both simultaneously.
No, like all standard pneumatic cylinders, it will not hold position under a loss of pressure. The piston can drift or drop. If a load must be safely held at a stop without live air, you must add an external rod lock or a pilot-operated check valve to the circuit.
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