Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 5mm and 5mm give 3 controllable stop positions across a 10mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 15 mm
- Stroke 25 mm
- Total travel10 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5
The SCT63X5X5 is a tie-rod multi-position cylinder that delivers three precise, repeatable stop positions along a compact 10 mm total stroke. By pressurising either of its two 5 mm piston sections independently or together, the rod locates at 0 mm (fully retracted), 5 mm, or the full 10 mm extension. Each section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at the 0.9 MPa maximum operating pressure.
This 63 mm bore unit uses a 20 mm diameter piston rod with an M16x1.5 male thread and PT1/4 ports. The body length A(SCT) is 249 mm, and each end features a 28 mm adjustable air cushion for smooth deceleration. Standard TPU seals suit operating temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 5 / 5 mm |
| Total travel | 10 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) | 5 mm |
| P2 (both extended) | 10 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 SCT63X5X5
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×5 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT63X5X5 Is Used
Precision Shim Insertion
The three fixed positions (0, 5, 10 mm) allow a feeder to pick a shim at the retracted position, present it at a 5 mm gap for alignment, and fully insert it at the 10 mm stroke.
Miniature Diverter Gate
A small flap or gate can be set to fully closed (0 mm), a 5 mm bypass opening, or a full 10 mm open position to route parts on a compact conveyor junction.
Two-Depth Pressing
In a small assembly press, the SCT63X5X5 can perform a light pre-press at the 5 mm stop and a final seating press at the full 10 mm extension, with 1559 N of force available per section.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5 the Right Cylinder?
Choose the SCT63X5X5 when your application needs a short-travel, three-position actuator without the complexity of two separate cylinders and external hard stops. The tandem design ensures the 5 mm and 10 mm positions are mechanically fixed, giving better repeatability than a single cylinder with adjustable collars. For higher force in the same compact format, step up to the 80 mm bore SCT80X5X5, which provides 2513 N of push per section at 0.5 MPa. For a lighter, lower-force alternative, the 50 mm bore SCT50X5X5 delivers 982 N per section. A direct replacement must match the 63 mm bore, both 5 mm strokes, PT1/4 ports, and basic mounting configuration.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 5 + 5 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 SCT63X5X5 FAQ
It provides 3 distinct mechanical stop positions because both piston sections have an identical 5 mm stroke. The rod can be positioned at 0 mm (fully retracted), 5 mm (one section actuated), or 10 mm (both sections actuated).
Yes, if your sequence requires only the three fixed positions of 0, 5, and 10 mm. The SCT tandem cylinder eliminates the need for external brackets and alignment of two separate units, but ensure the replacement matches the PT1/4 port thread and basic mounting style.
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