Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25SLB
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25SLB 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 SCT32X25X25SLB
The SCT32X25X25S is a 32 mm bore multi-position tandem cylinder that delivers three fixed rod positions: 0 mm (fully retracted), 25 mm, and 50 mm (total travel). Each piston section provides 402 N of push force at 0.5 MPa, making it a compact solution for light sorting or diverting tasks where two distinct extended stops are required from a single tie-rod assembly.
This specific model includes a built-in magnet for direct mounting of CMSG/DMSG sensors and is equipped with an LB foot mount for stable surface installation. The 12 mm diameter rod and PT1/8 ports keep the footprint small, while the 21 mm air cushion at each end helps manage end-of-stroke impact at speeds up to 800 mm/s.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25SLB Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25SLB |
|---|---|
| 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 SCT32X25X25SLB
| 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 SCT32X25X25SLB Is Used
Two-Way Diverter Gate
Actuate a diverter gate to three positions: closed (0 mm), divert to lane A (25 mm), or divert to lane B (50 mm) on a compact conveyor line.
Multi-Stop Label Applicator
Position a label tamp pad at a standby position (0 mm), a low-pressure pre-dab (25 mm), and a full application stroke (50 mm) for delicate products.
Three-Station Component Feed
Shift a small parts feeder between a home position and two separate pick-up points, using the sensor magnet to confirm arrival at each 25 mm increment.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X25SLB the Right Cylinder?
Choose the SCT32X25X25S when your application needs two positive extended stops without the complexity of two separate cylinders and external hard stops. The three-position design (0, 25, 50 mm) is ideal for compact mechanisms. If you require higher force, consider stepping up to the SCT40 bore, which provides 628 N of push per section at the same 0.5 MPa pressure.
For replacement, match the 32 mm bore, both 25 mm strokes, the PT port thread, the built-in magnet (-S suffix), and the LB foot mounting. This ensures the sensor brackets align with the magnet and the mounting footprint is identical. Note that the SCT is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profiles.
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 SCT32X25X25SLB FAQ
It provides three distinct mechanical stop positions because both strokes are equal (25 mm each). The rod positions are 0 mm (fully retracted), 25 mm (first section extended), and 50 mm (both sections extended, total travel).
Yes, if you need three fixed positions (0, 25, 50 mm) and the per-section force of 402 N at 0.5 MPa is sufficient. The SCT tandem design eliminates the need for external couplings and alignment of two separate cylinders, saving space and simplifying the pneumatic circuit.
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