Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 31mm and 31mm give 3 controllable stop positions across a 62mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 131 mm
- Stroke 231 mm
- Total travel62 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S
The SCT32X31X31 is a tandem multi-position cylinder that provides three repeatable rod positions: fully retracted (0 mm), 31 mm, and the total travel of 62 mm. Each piston section generates 402 N of push force at 0.5 MPa, making it suitable for light-duty sorting or diverting tasks where two distinct extended stops are required.
Built on a tie-rod design with a 12 mm rod and PT1/8 ports, this 32 mm bore unit uses adjustable end cushions to decelerate the load smoothly. The body length A(SCT) is 233 mm, and the maximum push force per section reaches 724 N at the 0.9 MPa operating limit.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 31 / 31 mm |
| Total travel | 62 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 31 mm |
| P2 (both extended) | 62 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 SCT32X31X31S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×31 | Stroke 1 (section 1) in mm. |
| ×31 | 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 SCT32X31X31S Is Used
Two-Way Part Diverter
Extends to 31 mm for one lane and 62 mm for a second, directing small components on a conveyor with simple pneumatic control.
Dual-Stop Gate Actuator
Provides a partially open gate at 31 mm and a fully open gate at 62 mm, controlling material flow in a chute or hopper.
Two-Depth Pressing
Positions a tool at two distinct depths for a two-stage assembly or light staking operation, using the 31 mm and 62 mm stops.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X31X31S the Right Cylinder?
Choose the SCT32X31X31 when a pneumatic system needs two fixed extension points without the complexity of two separate cylinders and external hard stops. If higher force is needed, stepping up to the 40 mm bore provides 628 N of push per section at 0.5 MPa. For replacement, match the 32 mm bore, both 31 mm section strokes, PT port thread, and basic mounting configuration exactly.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 31 + 31 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 SCT32X31X31S FAQ
It provides three distinct mechanical stops: 0 mm (fully retracted), 31 mm (first section extended), and 62 mm (both sections extended). The positions are fixed by the two 31 mm strokes.
Yes, this is a direct replacement for an AirTAC SCT32X31X31 with PT ports and basic mounting. Ensure the replacement matches the 32 mm bore, both 31 mm strokes, and the same port thread and magnet options.
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