Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 150mm give 3 controllable stop positions across a 300mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1150 mm
- Stroke 2150 mm
- Total travel300 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S
The SCT63X150X150S is a double-acting multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), extended by the first stroke (150 mm), and fully extended using both strokes (300 mm). Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, driven through a 20 mm diameter piston rod.
An integrated magnet (-S suffix) is built into the piston, allowing easy external mounting of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the tie-rod barrel for precise position feedback. The cylinder body measures 249 mm in its retracted state (A dimension) and features PT1/4 ports with an adjustable air cushion length of 28 mm for smooth end-of-stroke deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 150 / 150 mm |
| Total travel | 300 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) | 150 mm |
| P2 (both extended) | 300 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 SCT63X150X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT63X150X150S Is Used
3-Position Sorting Gate
Directs packages to three separate conveyor lanes by stopping the cylinder rod at 0, 150, and 300 mm, with magnetic sensors confirming each gate position.
Two-Depth Pressing
Provides a partial advance (150 mm) for a pre-compression step and a full advance (300 mm) for the final press, ensuring consistent part density in composite manufacturing.
Multi-Stop Clamping Fixture
Accommodates two different workpiece sizes on a single welding jig, retracting to 0 mm for load/unload, extending to 150 mm for small parts, and 300 mm for large parts.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X150S the Right Cylinder?
Choose this 3-position tandem cylinder when an application requires a part to stop reliably at a home, mid, and full-extend point without the complexity of two separate actuators and external hard stops. If the 1559 N push force per section at standard pressure is insufficient, stepping up to the SCT80 bore provides 2513 N per section; for a lighter, more compact solution, the SCT50 bore delivers 982 N per section.
For a direct replacement, match the 63 mm bore, both 150 mm strokes, PT port thread, and the -S magnet option. Since each stroke section is under 300 mm, rod bending under side load is typically not a primary concern, but external guides are still recommended if the payload is not constrained to linear motion.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 150 + 150 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 SCT63X150X150S FAQ
It provides 3 distinct mechanical stops: 0 mm (fully retracted), 150 mm (first section extended), and 300 mm (both sections extended). Because the two stroke lengths are equal, the 150 mm position is shared, resulting in three unique rod locations.
Yes, it is designed to do exactly that in a more compact footprint. A direct replacement requires matching the 63 mm bore, both 150 mm strokes, PT port threads, and the -S magnet option for sensor compatibility. Mounting style must also be verified, as this unit is a basic tie-rod body without flanges or feet.
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