Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 55mm and 55mm give 3 controllable stop positions across a 110mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 155 mm
- Stroke 255 mm
- Total travel110 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55
The SCT50X55X55 is a double-acting tandem cylinder that provides three fixed rod positions: fully retracted (0 mm), the first stop at 55 mm, and full extension at 110 mm. Each piston section delivers 982 N of push force at 0.5 MPa, driven through a 20 mm diameter rod and PT1/4 ports.
Designed with a 21 mm adjustable air cushion and a body length A(SCT) of 243 mm, this cylinder offers smooth deceleration at each end-of-stroke. The tie-rod construction ensures robust performance in sorting and diverting tasks where three distinct mechanical stops are required without complex servo controls.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 55 / 55 mm |
| Total travel | 110 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, 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) | 55 mm |
| P2 (both extended) | 110 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 SCT50X55X55
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×55 | Stroke 1 (section 1) in mm. |
| ×55 | 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 SCT50X55X55 Is Used
3-Position Diverter Gate
Actuates a conveyor gate to three fixed positions—left divert, straight-through, and right divert—using simple pneumatic controls for each 55 mm section.
Two-Depth Stamping
Provides a shallow 55 mm pre-press position and a full 110 mm forming depth in a single compact actuator, eliminating the need for dual cylinder setups.
Multi-Stop Part Feeding
Advances components to an intermediate 55 mm staging point before a final 110 mm push into an assembly nest, ensuring precise, repeatable placement.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X55X55 the Right Cylinder?
This 50 mm bore multi-position unit is a compact alternative to using two separate cylinders with external stop valves. If your application requires higher force per section, stepping up to the 63 mm bore provides 1559 N of push at the same 0.5 MPa pressure. For a direct replacement, ensure the substitute matches the 50 mm bore, both 55 mm strokes, PT port thread, and basic mounting configuration.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 55 + 55 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 SCT50X55X55 FAQ
This model provides three discrete mechanical stops: 0 mm (fully retracted), 55 mm (first section extended), and 110 mm (both sections extended). It does not offer infinitely variable positioning.
The force rating is per single piston section. Each 50 mm section provides 982 N of push force at 0.5 MPa. The two sections do not combine their force to double the output; they act independently to achieve the different stop positions.
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Related AirTAC SCT Multi-Position Cylinders
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