Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 100mm give 4 controllable stop positions across a 125mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 2100 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S
The SCT32X25X100S is a tandem multi-position cylinder that delivers four fixed rod positions from two unequal strokes: 0 mm (fully retracted), 25 mm, 100 mm, and the total travel of 125 mm. By pressurising either of the two piston sections independently or both together, you get precise, repeatable mechanical stops without needing external hard stops or multiple single-stroke cylinders.
Each 32 mm bore section provides 402 N of push force at 0.5 MPa and 724 N at the maximum operating pressure of 0.9 MPa, driven by a 12 mm diameter rod. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for end-of-stroke or mid-position confirmation. The body length A is 233 mm with a 21 mm adjustable air cushion on each section, and the standard PT1/8 ports keep pneumatic connections compact.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 100 mm |
| Total travel | 125 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) | 100 mm |
| P3 (both extended) | 125 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 SCT32X25X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT32X25X100S Is Used
Four-Position Sorting Gate
Direct packages or components to four separate lanes by stopping the cylinder rod at 0, 25, 100, or 125 mm, each position aligning a diverter flap with a different conveyor spur.
Two-Depth Pressing Station
Achieve a shallow 25 mm pre-press and a deeper 100 mm final press stroke in one compact unit, with the 125 mm total travel used for part ejection or tool change clearance.
Multi-Stop Glue Dispensing
Position a dispensing nozzle at four fixed heights above a workpiece for applying adhesive beads at different Z-levels, using the magnet sensors to verify each discrete stop before dispensing.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100S the Right Cylinder?
Choose the SCT32X25X100S when your application needs four distinct linear positions in a compact 32 mm bore envelope, eliminating the complexity of two separate actuators and external stop collars. If the 402 N per-section push force at 0.5 MPa is insufficient, stepping up to the 40 mm bore SCT40 delivers 628 N per section at the same pressure. For direct replacement, match the 32 mm bore, the exact 25 mm and 100 mm section strokes, PT port thread, and the integrated magnet (-S); this model uses the basic mounting style, so no additional brackets are included. When the longer 100 mm section stroke is fully extended, consider external rod guiding if side loads are present to prevent bending of the 12 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 100 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 SCT32X25X100S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 25 mm (first section extended), 100 mm (second section extended), and 125 mm (both sections extended for total travel). The positions are fixed by the two unequal stroke lengths and are not infinitely adjustable.
Yes. The -S suffix indicates a built-in magnet along the barrel, making it compatible with AirTAC CMSG reed switches, DMSG solid-state switches, and EMSG explosion-proof sensors. These clamp directly onto the tie-rods for non-contact position sensing at any of the four stops.
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