Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 40mm give 3 controllable stop positions across a 80mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 140 mm
- Stroke 240 mm
- Total travel80 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40
The SCT63X40X40 is a double-acting multi-position tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), first section extended (40 mm), and both sections extended for a total travel of 80 mm. Each piston section delivers a push force of 1559 N at 0.5 MPa, making it a compact solution for light sorting or diverting tasks.
Built on a 63 mm bore tie-rod body with a 20 mm diameter rod and M16x1.5 rod thread, this cylinder uses PT1/4 ports and features an adjustable air cushion of 28 mm at each end for smooth deceleration. The body length A(SCT) is 249 mm, and the maximum push force per section reaches 2805 N at the 0.9 MPa operating limit.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 40 / 40 mm |
| Total travel | 80 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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) | 40 mm |
| P2 (both extended) | 80 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X40X40
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT63X40X40 Is Used
3-Position Diverter Gate
Directs parts to left, right, or a center bypass lane using the three discrete rod positions for simple conveyor routing.
Two-Depth Clamping Fixture
Applies a light clamp at 40 mm extension for delicate parts, then a full clamp at 80 mm for standard workpieces in a single station.
Multi-Stop Part Presenter
Presents a component tray at a retracted load position, a mid-level inspection height, and a fully extended unload position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X40 the Right Cylinder?
Select the SCT63X40X40 when your application needs three positive mechanical stops without the complexity of two separate cylinders and external hard stops. The 40 mm strokes per section keep the overall length manageable. If you need higher per-section force, step up to the 80 mm bore which provides 2513 N push at 0.5 MPa. For a direct replacement, match the 63 mm bore, both 40 mm strokes, PT port thread, and basic mounting. Adding a magnet option (-S) enables sensor feedback at each position.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 40 + 40 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 SCT63X40X40 FAQ
It provides 3 distinct mechanical stops: 0 mm (fully retracted), 40 mm (first section extended), and 80 mm (both sections extended). Because both stroke sections are equal, the mid-stroke position is unique.
Each of the two piston sections generates 1559 N of push force and 1402 N of pull force when operated at 0.5 MPa. The two sections do not combine their force for a single push; they are actuated independently to achieve the multi-position stops.
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Related AirTAC SCT Multi-Position Cylinders
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