Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 50mm give 4 controllable stop positions across a 90mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 140 mm
- Stroke 250 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S
The SCT32X40X50S is a double-acting multi-position tandem cylinder that provides four distinct mechanical stop positions along its 90 mm total stroke. By pressurising the two 32 mm bore sections individually or together, the rod can be reliably positioned at 0 mm (fully retracted), 40 mm, 50 mm, and 90 mm (fully extended), making it ideal for diverting or sorting tasks requiring fixed intermediate points.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. Each piston section delivers a push force of 402 N at 0.5 MPa, and the 12 mm diameter rod with M10x1.25 threads provides a robust connection for light automation tooling.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 40 / 50 mm |
| Total travel | 90 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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) | 40 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 90 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X40X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×40 | 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S Is Used
Two-Way Part Diverting
Uses the 40 mm and 50 mm stop positions to guide parts into two separate lanes from a single infeed conveyor, controlled by simple pneumatic valves.
Multi-Stop Pusher
Pushes components to three distinct depths on an assembly fixture, using the 40 mm, 50 mm, and full 90 mm extension for different process steps.
Sensor-Monitored Sequencing
The integrated magnet and external sensors confirm arrival at each of the four discrete positions, ensuring reliable interlocking in automated cells.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S the Right Cylinder?
Select the SCT32X40X50S when your application needs four fixed stop points without the complexity of two separate cylinders and external stops. The built-in magnet simplifies sensor integration for sequence control. If higher force is required, consider stepping up to the SCT40 bore, which provides 628 N of push force per section at the same 0.5 MPa pressure. For direct replacement, ensure the match includes a 32 mm bore, 40 mm and 50 mm strokes, PT ports, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X50S FAQ
It provides four distinct mechanical stop positions: 0 mm (retracted), 40 mm, 50 mm, and 90 mm (total stroke). These are achieved by pressurising the first section, the second section, or both sections simultaneously.
No, an SCT cylinder does not lock or hold position without live air pressure. If the load must be mechanically held at an intermediate stop when pressure is exhausted, an external rod brake or pilot-operated check valve is required.
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