Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 50mm give 4 controllable stop positions across a 80mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 130 mm
- Stroke 250 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S
The SCT63X30X50S is a tandem multi-position cylinder that provides four distinct rod positions—0 mm, 30 mm, 50 mm, and the full 80 mm combined stroke—by pressurising its two piston sections independently. Each section delivers a robust 1559 N of push force at 0.5 MPa, with thrust climbing to 2805 N at the maximum operating pressure of 0.9 MPa. The 20 mm diameter rod and 28 mm adjustable air cushion at each end ensure smooth deceleration across all stop points.
This model includes a factory-installed magnetic piston ring, designated by the 'S' suffix, allowing CMSG, DMSG, or EMSG solid-state sensors to be mounted directly on the tie-rod barrel for precise, non-contact position feedback. It operates on standard 40 µm filtered air and features PT1/4 ports. The body length A(SCT) is 249 mm, making it a compact solution for sequencing or sorting tasks that require more than the standard two end-of-stroke positions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 30 / 50 mm |
| Total travel | 80 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, 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 30 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 80 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 SCT63X30X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×30 | 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 SCT63X30X50S Is Used
Multi-Stop Diverter Gates
Actuates a diverter gate on a conveyor to four distinct positions, routing packages to separate lanes based on barcode data. The 0, 30, 50, and 80 mm stops align perfectly with multiple chute entries.
Two-Depth Pressing or Staking
Controls a press head to two different insertion depths in a single cycle. The first section extends 30 mm for an initial stake, and the second section adds 50 mm for a final seat, with sensor confirmation at each step via the built-in magnet.
Sequential Part Feeding
Pushes components through a multi-stage assembly fixture. The rod stops at 30 mm to present a fastener, advances to 50 mm for a washer placement, and reaches the full 80 mm extension to eject the completed sub-assembly.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X50S the Right Cylinder?
Choose the SCT tandem cylinder when a single actuator must index to multiple fixed locations without the complexity of two separate cylinders and external stops. This 63 mm bore unit is well-suited for medium-force multi-stop tasks; if your force requirement is lower, stepping down to the 50 mm bore provides 982 N of push per section at 0.5 MPa. For a direct replacement, match the 63 mm bore, both the 30 mm and 50 mm strokes, PT port thread, basic mounting, and the integrated magnet (-S) suffix. Always confirm that the total 80 mm travel is sufficient for all four discrete positions.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 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 SCT63X30X50S FAQ
This tandem cylinder provides four distinct rod positions: fully retracted (0 mm), first section extended (30 mm), second section extended (50 mm), and both sections extended for the total travel (80 mm). The unequal strokes create four unique mechanical stops.
Yes, the 'S' suffix indicates a built-in magnet, making it fully compatible with AirTAC's CMSG, DMSG, and EMSG series of reed and solid-state sensors. These sensors clamp directly to the tie-rod barrel to detect the piston's position at any of the four stops.
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