Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 25mm give 3 controllable stop positions across a 50mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 225 mm
- Total travel50 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S
The SCT32X25X25S is a tandem multi-position cylinder that delivers three precise, repeatable stop positions—0 mm, 25 mm, and 50 mm—by pressurising its two piston sections independently or together. Each section generates a push force of 402 N at 0.5 MPa, making it a compact solution for light-duty sorting or diverting tasks where a standard cylinder would need external hard stops.
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 end-of-stroke or mid-position confirmation. The 12 mm diameter piston rod and M10x1.25 rod thread are standard for the 32 mm bore, and the adjustable air cushion (21 mm length) provides smooth deceleration at each stop.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 25 mm |
| Total travel | 50 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 25 mm |
| P2 (both extended) | 50 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 SCT32X25X25S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×25 | 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 SCT32X25X25S Is Used
3-Way Part Sorting
Directs small components to three different chutes or lanes by stopping the rod at 0, 25, or 50 mm, controlled by two 5/2-way valves.
Multi-Level Pusher
Advances parts to two distinct depths on a conveyor, such as pushing items to a primary and secondary inspection station.
Two-Stage Clamping
Applies a light pre-clamp at 25 mm extension before applying full clamp force at the fully extended 50 mm position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25S the Right Cylinder?
Choose the SCT32X25X25S when you need three fixed axial positions from a single, self-contained actuator without the complexity of two separate cylinders and external brackets. If your application requires a higher force per section, step up to the 40 mm bore SCT40X25X25, which provides 628 N of push force at the same 0.5 MPa pressure. For replacement, match the 32 mm bore, both 25 mm strokes, the PT port thread, and the -S magnet option; the basic mounting configuration means no additional brackets are included.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 25 + 25 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 SCT32X25X25S FAQ
It provides 3 discrete mechanical stop positions: fully retracted (0 mm), the first stroke extended (25 mm), and both strokes extended (50 mm). Because the two stroke lengths are equal, the 25 mm position is shared, resulting in three unique stops.
Yes. The -S suffix in the model code SCT32X25X25S indicates a built-in magnet is installed on the piston, specifically for use with AirTAC CMSG, DMSG, or EMSG series sensors that clamp onto the cylinder's tie-rods.
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