Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 50mm give 3 controllable stop positions across a 100mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 150 mm
- Stroke 250 mm
- Total travel100 mm
- Positions3 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50
The AirTAC SCT80X50X50 is an 80 mm bore multi-position pneumatic cylinder that provides three distinct, repeatable rod positions: fully retracted (0 mm), 50 mm, and 100 mm total travel. Each of its two tandem piston sections generates a robust push force of 2513 N at 0.5 MPa, scaling to 4523 N at the maximum operating pressure of 0.9 MPa, making it a powerful solution for mid-stroke sorting or diverting tasks.
This tie-rod cylinder uses a 25 mm diameter rod for high rigidity and features a 28 mm adjustable air cushion in each section for smooth deceleration. The body length A(SCT) is 296 mm, and it operates on filtered air within a standard temperature range of -20 to +70 °C with its default TPU seals. Ports are PT3/8.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 50 / 50 mm |
| Total travel | 100 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 50 mm |
| P2 (both extended) | 100 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 SCT80X50X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT80X50X50 Is Used
3-Position Diverter Gate
Actuates a conveyor gate to three precise locations—retracted, mid-point, and extended—for reliably sorting packages into two separate lanes from a single infeed.
Two-Stop Part Staging
Positions a workpiece at a 50 mm inspection station and then advances it to a 100 mm pick-and-place point in sequence, using a single actuator to reduce cycle time and control hardware.
Multi-Depth Pressing
Provides two distinct pressing depths (50 mm and 100 mm) for assembly operations, such as installing a bearing to a controlled depth and then fully seating a seal in the same station.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X50 the Right Cylinder?
Choose the SCT80X50X50 when your application requires a compact, all-in-one actuator to achieve three fixed stopping points, eliminating the complexity and cost of mounting two separate cylinders with external hard stops. If the 2513 N per-section push force at 0.5 MPa is more than needed, stepping down to a 63 mm bore reduces the force to 1559 N per section. For a direct replacement, ensure the new unit matches the 80 mm bore, both 50 mm strokes, PT3/8 ports, and basic mounting configuration.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 50 + 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 SCT80X50X50 FAQ
This model provides three discrete positions: 0 mm (fully retracted), 50 mm (first section extended), and 100 mm (both sections extended, total travel). The positions are fixed by the two 50 mm strokes and are selected by pressurizing the appropriate cylinder ports.
The SCT tandem cylinder integrates two piston sections on a single rod line, creating a compact, pre-aligned unit that guarantees the three stop positions without external brackets, couplers, or the alignment challenges of connecting two separate cylinders. It simplifies mounting and reduces the overall footprint.
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