Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 9mm and 6mm give 4 controllable stop positions across a 15mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 19 mm
- Stroke 26 mm
- Total travel15 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6
The SCT50X9X6 is a tandem multi-position cylinder that delivers four distinct rod positions from two short strokes: 0 mm (fully retracted), 9 mm, 6 mm, and 15 mm total travel. This compact 50 mm bore unit generates approximately 982 N of push force per actuated piston section at 0.5 MPa, making it suitable for precise short-throw indexing where space is limited.
Built on a tie-rod body with a length A of 243 mm, the cylinder uses a 20 mm diameter rod with M16x1.5 threads and PT1/4 ports. The adjustable air cushion at each end (21 mm cushion length) allows smooth deceleration even with rapid cycling, while the TPU seals maintain reliable operation from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 9 / 6 mm |
| Total travel | 15 mm |
| Stop positions | 4 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, 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) | 9 mm |
| P2 (section 2) | 6 mm |
| P3 (both extended) | 15 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X9X6
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×9 | Stroke 1 (section 1) in mm. |
| ×6 | 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 SCT50X9X6 Is Used
Multi-Level Part Ejection
Uses the 0, 6, 9, and 15 mm positions to eject parts to different conveyor lanes based on a quality inspection signal.
Short-Stroke Stamping
Provides two distinct pressing depths (6 mm and 9 mm) plus a 15 mm full-extension position for clearing tooling in a compact stamping cell.
Diverter Gate Actuation
Positions a small diverter gate at four angles for routing packages in a high-speed sorting system, using the cylinder's discrete stops for repeatable alignment.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X9X6 the Right Cylinder?
Choose the SCT50X9X6 when your application needs up to four fixed stop positions without the complexity of two separate cylinders and external hard stops. The 50 mm bore provides a solid force class for light clamping or sorting; if you need more thrust, stepping up to the 63 mm bore delivers about 1559 N push per section at the same pressure. For a drop-in replacement, match the 50 mm bore, both the 9 mm and 6 mm strokes, PT port thread, and basic mounting configuration.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 9 + 6 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 SCT50X9X6 FAQ
It provides four distinct rod positions: 0 mm (retracted), 9 mm (first section extended), 6 mm (second section extended), and 15 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your sequence requires the rod to stop at 0, 6, 9, and 15 mm. The SCT tandem design eliminates the need for mounting and aligning two individual cylinders, reducing footprint and plumbing complexity. Ensure the replacement matches the 50 mm bore, both strokes, PT ports, and basic mount.
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