Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 80mm give 4 controllable stop positions across a 105mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 280 mm
- Total travel105 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S
The SCT32X25X80S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions—0 mm, 25 mm, 80 mm, and the combined 105 mm total travel—by pressurising its two piston sections independently or together. Each section provides a push force of 402 N at 0.5 MPa, scaling up to 724 N at the maximum operating pressure of 0.9 MPa, driven by a 12 mm diameter rod.
This model includes a factory-installed -S magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for contactless position sensing. The body length A(SCT) is 233 mm, and the integrated air cushion is 21 mm long per end, offering adjustable deceleration. PT1/8 ports and an M10x1.25 rod thread complete the standard pneumatic interface.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 80 mm |
| Total travel | 105 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) | 25 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 105 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 SCT32X25X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×80 | 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 SCT32X25X80S Is Used
Multi-Stop Diverter Gate
Positions a diverter gate at four distinct angles—fully retracted, partially extended to 25 mm, further extended to 80 mm, or fully deployed at 105 mm—to route packages on a conveyor line without needing multiple actuators.
Two-Depth Pressing Station
Executes a two-stage pressing operation: a rapid approach to 80 mm, followed by a final controlled press at the 105 mm total stroke, while the 25 mm position serves as a safe part-loading clearance.
Staggered Part Feeding
Controls a feed escapement with four distinct stop positions (0, 25, 80, 105 mm) to release components of varying thicknesses in a timed sequence, synchronised via the built-in magnetic sensors.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X80S the Right Cylinder?
Choose the SCT32X25X80S when your process requires a compact actuator to stop precisely at four distinct points without the complexity of two separate cylinders and external hard stops. The 25 mm and 80 mm stroke sections create a versatile pattern for pick-and-place or diverting tasks. If higher force is needed, stepping up to the SCT40 bore provides 628 N of push per section at 0.5 MPa. For direct replacement, match the 32 mm bore, both 25 mm and 80 mm strokes, PT port thread, basic mounting, and the integrated -S magnet to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 80 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 SCT32X25X80S FAQ
It provides 4 discrete mechanical stops at 0 mm (fully retracted), 25 mm (first section extended), 80 mm (second section extended), and 105 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it can replace a setup using two separate SC32 cylinders with external stops in many cases, provided the required strokes are 25 mm and 80 mm. The SCT32X25X80S achieves the multi-stop function in a single, compact body. Ensure the replacement matches the 32 mm bore, PT ports, and the -S magnet option for sensor mounting.
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