Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25H
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25H 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 SCT32X25X25H
The SCT32X25X25H is a tandem multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), 25 mm, and the total travel of 50 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making it suitable for light-duty sorting or diverting tasks in high-temperature environments.
This variant is equipped with Viton (FKM) seals, extending the operating temperature range to 0–150 °C for use near ovens or in hot-air circuits. The 12 mm diameter rod and 21 mm adjustable air cushion at each end ensure smooth, controlled stops at all three positions. The body length A is 233 mm.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25H Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25H |
|---|---|
| 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 SCT32X25X25H
| 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 SCT32X25X25H Is Used
Hot Part Diverter
Directs small components exiting a curing oven into one of two lanes using the 25 mm and 50 mm extended positions, with seals rated for continuous 150°C exposure.
Two-Stage Ejector
Provides a partial eject at 25 mm for inspection and a full eject at 50 mm for part removal in automated assembly cells.
Thermal Forming Stop
Sets two precise insertion depths for a heated tool in a blister packaging machine, leveraging the fixed mechanical stops for repeatability.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25H the Right Cylinder?
Choose the SCT when a single compact unit must provide three discrete mechanical stops without the complexity of two separate cylinders and external hard stops. The 32 mm bore is ideal for light push forces; if you need more thrust, step up to the SCT40 (628 N push per section at 0.5 MPa). For direct replacement, match the 32 mm bore, both 25 mm strokes, PT port thread, basic mounting, and the high-temperature Viton seal code 'H'.
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 SCT32X25X25H FAQ
It provides three distinct mechanical stop positions: 0 mm (fully retracted), 25 mm (first section extended), and 50 mm (both sections extended, total travel).
No. Like all standard pneumatic cylinders, the SCT does not lock its position. If the load must be held without live pressure, an external rod brake or pilot-operated check valve is required.
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Related AirTAC SCT Multi-Position Cylinders
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