Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 5mm and 5mm give 3 controllable stop positions across a 10mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 15 mm
- Stroke 25 mm
- Total travel10 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S
The SCT63X5X5S is a tandem multi-position pneumatic cylinder that delivers three fixed rod positions: fully retracted (0 mm), extended to the first stop (5 mm), and fully extended to the total travel of 10 mm. Each of its two 63 mm bore sections generates a push force of 1559 N at 0.5 MPa, making it a compact solution for precise, short-throw positioning tasks.
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. The 20 mm diameter piston rod and 28 mm adjustable air cushion at each end ensure smooth deceleration, even in rapid cycling applications up to 800 mm/s.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 5 / 5 mm |
| Total travel | 10 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) | 5 mm |
| P2 (both extended) | 10 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 SCT63X5X5S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×5 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT63X5X5S Is Used
Two-Stage Precision Press
Ideal for a small assembly press requiring a low-force approach stroke at 5 mm followed by a final press at the 10 mm total travel position, using sensors on the magnet-equipped barrel to confirm each stage.
Miniature Part Sorting Gate
Controls a diverter gate with three positions: closed (0 mm), partial open for small parts (5 mm), and full open for larger components (10 mm). The built-in magnet provides reliable gate position confirmation.
Calibrated Stop for Dispensing
Positions a dual-nozzle dispenser at two precise heights above a workpiece. The 5 mm and 10 mm discrete stops ensure repeatable adhesive bead placement without the drift of a continuously variable system.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X5S the Right Cylinder?
Choose the SCT63X5X5S when a single cylinder must provide two distinct extended stop positions without the complexity of external hard stops or dual-cylinder setups. For applications requiring higher force, consider stepping up to the 80 mm bore SCT series, which provides 2513 N of push force per section at 0.5 MPa. A direct replacement must match the 63 mm bore, both 5 mm strokes, PT port thread, basic mounting, and the integrated magnet.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 5 + 5 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 SCT63X5X5S FAQ
This 3-position cylinder provides discrete mechanical stops at 0 mm (fully retracted), 5 mm (first section extended), and 10 mm (both sections extended for total travel). The positions are fixed by the two 5 mm stroke sections and are not infinitely adjustable.
No. Like all standard pneumatic cylinders, the SCT63X5X5S will not lock or hold its position if air pressure is removed or exhausted from a section. The piston can drift. If a load must be mechanically held at the 5 mm or 10 mm stop without live pressure, an external rod lock or pilot-operated check valve is required.
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