Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 300mm give 4 controllable stop positions across a 450mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1150 mm
- Stroke 2300 mm
- Total travel450 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S
The SCT32X150X300S is a genuine AirTAC multi-position tandem cylinder that delivers four fixed rod positions from a single compact assembly. By pressurising its two 32 mm bore sections independently or together, the rod extends to 0 mm, 150 mm, 300 mm, or the full combined travel of 450 mm, giving designers a simple pneumatic solution for multi-stop linear motion.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing at each stop. Each piston section generates a push force of 402 N at 0.5 MPa and up to 724 N at the maximum operating pressure of 0.9 MPa, driven through a 12 mm diameter rod. The body length A is 233 mm, and the PT1/8 ports feature an adjustable air cushion of 21 mm for smooth deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 150 / 300 mm |
| Total travel | 450 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) | 150 mm |
| P2 (section 2) | 300 mm |
| P3 (both extended) | 450 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 SCT32X150X300S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT32X150X300S Is Used
Two-Way Diverter Gate
Uses the 150 mm stroke for a partial gate opening and the 450 mm total stroke for full diversion, routing products to two separate lanes from a single conveyor.
Two-Depth Pressing Station
Provides a 150 mm approach stroke for a light pre-form operation and a 300 mm power stroke for the final press depth, all from one cylinder with sensor feedback at each position.
Multi-Stop Part Transfer
Shifts a workpiece pallet to a 150 mm inspection stop, a 300 mm machining stop, or the full 450 mm unload position, simplifying the tooling layout.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X300S the Right Cylinder?
Choosing the SCT32X150X300S over two separate standard cylinders eliminates the need for complex bracketry and external hard stops, reducing assembly time and footprint. The four distinct positions (0, 150, 300, and 450 mm) are ideal for applications requiring a short intermediate stroke and a longer final stroke, such as a two-depth pressing or a diverting gate with a home position. If higher force is needed, stepping up to the 40 mm bore SCT provides 628 N of push per section at 0.5 MPa.
For a direct replacement, match the 32 mm bore, both stroke lengths (150 mm and 300 mm), the PT port thread, and the built-in magnet (-S). Since the second stroke is 300 mm, consider the rod's bending moment capacity; if the load is not guided, a linear guide or external support may be required to prevent side-loading and ensure long seal life.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 300 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 SCT32X150X300S FAQ
This model provides 4 discrete rod positions: 0 mm (fully retracted), 150 mm (section 1 extended), 300 mm (section 2 extended), and 450 mm (both sections extended for total travel). The stops are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder sections.
Yes, it is designed to replace two individual cylinders that were mechanically coupled to achieve two strokes. A direct replacement requires matching the 32 mm bore, the 150 mm and 300 mm strokes, the PT port thread, and the built-in magnet (-S). The tandem design reduces overall length and eliminates external alignment fixtures.
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