Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 10mm and 20mm give 4 controllable stop positions across a 30mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 110 mm
- Stroke 220 mm
- Total travel30 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S
The SCT32X10X20S is a tandem multi-position cylinder that delivers four fixed stop points from two independent piston sections on a common rod: 0 mm (fully retracted), 10 mm, 20 mm, and the total travel of 30 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, with a 12 mm diameter rod and M10x1.25 rod-end thread for compact mechanical connections.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for non-contact position feedback. The cylinder body length A is 233 mm, and the adjustable pneumatic cushion at each end (21 mm cushion length) helps manage end-of-stroke deceleration without external shock absorbers.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 10 / 20 mm |
| Total travel | 30 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 10 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 30 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 SCT32X10X20S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×10 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT32X10X20S Is Used
Miniature 4-Way Diverter Gate
The four discrete positions (0, 10, 20, 30 mm) let a single compact actuator direct small parts into four separate chutes or lanes, replacing two short-stroke cylinders and simplifying the control architecture.
Multi-Depth Pick-and-Place
A light-duty gripper can stop at three different insertion depths plus a retracted safe position. The 12 mm rod and 402 N per-section push force suit repetitive small-part assembly with sensor-confirmed stops.
Calibration or Gauging Stop
Use the fixed 10 mm, 20 mm, and 30 mm positions as a mechanical reference for a go/no-go gauge or a multi-step pressing tool, with the built-in magnet providing end-of-travel confirmation via CMSG sensors.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X10X20S the Right Cylinder?
Choose the SCT32X10X20S when your application needs four distinct mechanical stops in a very short stroke envelope—ideal for compact sorting gates or precision shuttles where a single cylinder with external hard stops would be bulkier. The 10 mm and 20 mm section strokes give you fine position resolution without the complexity of two separate actuators. If you need more force, step up to the 40 mm bore SCT40, which provides 628 N push per section at 0.5 MPa.
For a direct replacement, match the 32 mm bore, both strokes (10 mm and 20 mm), PT port thread, and the built-in magnet (-S). This cylinder mounts as a basic body without brackets; if you later need pivoting, the CA (single clevis) or CB (double clevis) rear mounts are available for the SCT series.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 10 + 20 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 SCT32X10X20S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 10 mm (first section extended), 20 mm (second section extended), and 30 mm (both sections extended, total travel). The positions are selected by pressurising section one, section two, or both simultaneously.
No. Like all standard pneumatic cylinders, the SCT32X10X20S does not lock or hold its position when air pressure is lost or a valve centre is closed—the piston will drift. If you need to hold a load at one of the four stops without live pressure, you must add an external rod brake, a mechanical lock, or pilot-operated check valves in the circuit.
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