Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 15mm give 4 controllable stop positions across a 40mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 215 mm
- Total travel40 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S
The SCT32X25X15S is a double-acting multi-position cylinder that delivers four distinct mechanical stop positions: fully retracted (0 mm), 25 mm, 15 mm, and the combined total travel of 40 mm. This is achieved by pressurizing either of the two 12 mm diameter rod sections independently or together, providing a compact solution for short-stroke, multi-stop tasks without needing complex servo controls.
Each piston section generates a push force of 402 N at 0.5 MPa (724 N at 0.9 MPa), while the built-in magnet (-S suffix) allows CMSG or DMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke sensing. The unit features a 21 mm adjustable air cushion on each section and uses PT1/8 ports with an M10x1.25 rod thread, making it a precise, sensor-ready actuator for compact machinery.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 15 mm |
| Total travel | 40 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) | 15 mm |
| P3 (both extended) | 40 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 SCT32X25X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT32X25X15S Is Used
Two-Stage Sorting Gate
Uses the 15 mm and 25 mm stops to divert small parts into three separate lanes from a single feed point, with the fourth position acting as a bypass.
Multi-Depth Insertion
Provides two distinct pressing depths (15 mm and 25 mm) for installing components into a housing, ensuring consistent, repeatable placement at each level.
Compact Part Staging
Positions a stop pin at 0, 15, 25, or 40 mm to stage and release small workpieces on a conveyor, controlled by simple pneumatic valving.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X15S the Right Cylinder?
Choose the SCT32X25X15S when your process needs four fixed positions in a very compact 40 mm total stroke envelope, eliminating the cost and complexity of two separate cylinders and external hard stops. If the per-section push force of 402 N at 0.5 MPa is insufficient, stepping up to the 40 mm bore SCT provides 628 N per section. For replacement, ensure the new unit matches the 32 mm bore, the exact 25 mm and 15 mm strokes, PT port thread, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 15 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 SCT32X25X15S FAQ
This tandem cylinder provides four discrete positions: 0 mm (fully retracted), 25 mm (section 1 extended), 15 mm (section 2 extended), and 40 mm (both sections extended). The positions are fixed by the stroke lengths and are not infinitely variable.
It integrates two strokes on a single common rod line, guaranteeing coaxial alignment and reducing installation space. This eliminates the need to synchronize two independent cylinders and external brackets, providing a simpler, more reliable multi-stop solution with a single mounting footprint.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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