Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 50mm give 3 controllable stop positions across a 100mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 250 mm
- Total travel100 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S
The SCT63X50X50S is a tandem multi-position pneumatic cylinder that provides three fixed rod positions: fully retracted (0 mm), 50 mm, and the combined 100 mm total travel. Each 63 mm bore piston section generates 1559 N of push force at 0.5 MPa, making it suitable for sorting gates or two-depth pressing operations where intermediate stops are required.
This model includes a built-in magnet (-S suffix) along the barrel, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors for reliable end-of-stroke and mid-position detection. It uses a 20 mm diameter rod with M16x1.5 threads, PT1/4 ports, and a 28 mm adjustable air cushion on each section to decelerate loads smoothly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 50 mm |
| Total travel | 100 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) | 50 mm |
| P2 (both extended) | 100 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 SCT63X50X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT63X50X50S Is Used
3-Position Diverter Gate
Actuates a conveyor diverter to three fixed positions—left, center, and right—using the 0, 50, and 100 mm stops to route packages without overshoot.
Two-Depth Press Operation
Provides a 50 mm pre-press position and a 100 mm full-press depth, allowing gentle initial contact followed by full force application in assembly fixtures.
Multi-Stop Part Feeding
Advances components in two precise 50 mm increments on a linear slide, using the magnet-equipped barrel for sensor confirmation at each discrete stop.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X50S the Right Cylinder?
Choose the SCT63X50X50S when your process needs three positive mechanical stops without the complexity of servo controls or multiple individual cylinders. If the 1559 N push force at 0.5 MPa is insufficient, stepping up to an SCT80 bore provides 2513 N per section; for a lighter, more compact solution, the SCT50 bore delivers 982 N per section.
For direct replacement, match the 63 mm bore, both 50 mm section strokes, PT port thread, and the -S magnet option. The basic mounting configuration can be upgraded with FA/FB flanges for panel mounting, CA/CB clevises for pivoting, or LB feet for surface mounting. With a 50 mm stroke per section, rod bending under side load is minimal, but always align the load axially for maximum seal life.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 50 + 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 SCT63X50X50S FAQ
This tandem cylinder provides three distinct rod positions: 0 mm (fully retracted), 50 mm (first section extended), and 100 mm (both sections extended). The two 50 mm strokes are equal, so the 50 mm position is shared, yielding three unique stops.
No, a standard single-rod SC cylinder provides only two end positions. The SCT63X50X50S is a direct replacement only for another AirTAC SCT63 with identical 50 mm and 50 mm strokes, PT ports, and the -S magnet option. It cannot be interchanged with a basic SC unit.
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