Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 15mm give 4 controllable stop positions across a 95mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 180 mm
- Stroke 215 mm
- Total travel95 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15
The SCT40X80X15 is a tandem multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 15 mm, 80 mm, and the combined total travel of 95 mm. Each 40 mm bore piston section delivers 628 N of push force at 0.5 MPa, making it a compact solution for light sorting or diverting tasks requiring two distinct extended stops.
Built on a rugged tie-rod design with a 16 mm diameter rod and M12x1.25 rod thread, this cylinder uses PT1/4 ports and features a 21 mm adjustable air cushion on each section for smooth end-of-stroke deceleration. The body length A is 235 mm, and the standard TPU seals suit operating temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 80 / 15 mm |
| Total travel | 95 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 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) | 80 mm |
| P2 (section 2) | 15 mm |
| P3 (both extended) | 95 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 Is Used
Two-Way Part Diverting
Use the 15 mm and 80 mm stops to divert parts onto two separate conveyor lanes from a single feed point, simplifying pneumatic sorting stations.
Multi-Depth Label Application
Apply labels at two different heights (15 mm and 80 mm) on a product with a stepped surface, using one compact actuator for both positions.
Staged Clamping Fixture
Clamp a workpiece with a light 15 mm touch for alignment, then advance to the full 80 mm stroke for high-force holding during machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 the Right Cylinder?
Choose the SCT when your application needs two separate, repeatable extended positions without the complexity of two individual cylinders and external hard stops. If higher force is needed, stepping up to the 50 mm bore SCT provides 982 N of push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both the 80 mm and 15 mm strokes, PT port thread, and basic mounting style.
When either stroke exceeds 300 mm, assess the rod for potential buckling under compressive loads and consider adding an external guide to protect the 16 mm rod from side forces.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 15 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X15 FAQ
It provides 4 discrete stop positions: 0 mm (fully retracted), 15 mm, 80 mm, and 95 mm (the total of both strokes). The positions are fixed and selected by pressurizing one or both cylinder sections.
Yes, in many cases. The SCT40X80X15 integrates two strokes into one tandem body, eliminating the need to synchronize two separate cylinders and their mounting hardware. Ensure the 40 mm bore, 80 mm and 15 mm strokes, and PT1/4 ports match your design.
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