Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 125mm give 4 controllable stop positions across a 175mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 150 mm
- Stroke 2125 mm
- Total travel175 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S
The SCT32X50X125S is a double-acting multi-position tandem cylinder that delivers four distinct rod positions from two strokes on a single axis. By pressurising the 50 mm or 125 mm piston sections independently or together, the rod stops precisely at 0 mm, 50 mm, 125 mm, and the full combined travel of 175 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, driven through a 12 mm diameter rod with PT1/8 ports.
A built-in magnet on the piston allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback at each stop. The cylinder body has an A-length of 233 mm and uses an adjustable air cushion with a 21 mm cushion sleeve to decelerate the load quietly. This model suits compact multi-stop sorting or diverting tasks where sensor confirmation of each discrete position is required.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 50 / 125 mm |
| Total travel | 175 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) | 50 mm |
| P2 (section 2) | 125 mm |
| P3 (both extended) | 175 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 SCT32X50X125S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×125 | 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 SCT32X50X125S Is Used
Four-Position Diverter Gate
Directs packages or parts to four separate conveyor lanes by stopping the rod at 0, 50, 125, or 175 mm. The integrated magnet provides sensor confirmation at each lane position.
Multi-Depth Pressing Station
Controls a press platen to two distinct pressing depths (50 mm and 125 mm) plus a full-depth stroke (175 mm) for different product families, all from one compact actuator.
Staged Component Insertion
Inserts a pin or fastener to a partial depth of 50 mm, a deeper 125 mm set, or a full 175 mm home position, with reed switch feedback at each stage to prevent incomplete cycles.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X125S the Right Cylinder?
Select the SCT32X50X125S when your process needs four fixed mechanical stops without the complexity of two separate cylinders and external bracketry. The tandem design guarantees the 175 mm total travel and the 50 mm and 125 mm intermediate positions are built into the cylinder geometry, eliminating drift-prone external hard stops. If you require higher thrust, step up to the 40 mm bore SCT40 series, which provides 628 N of push per section at the same 0.5 MPa operating pressure. For replacement, match the 32 mm bore, both the 50 mm and 125 mm strokes, the PT1/8 port thread, the basic mounting configuration, and the -S magnet option to retain sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 125 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 SCT32X50X125S FAQ
This tandem cylinder provides four discrete mechanical stops. The rod positions are 0 mm (fully retracted), 50 mm (first section extended), 125 mm (second section extended), and 175 mm (both sections extended). These are fixed by the two stroke lengths and cannot be adjusted without changing the cylinder.
Yes, in applications requiring two fixed intermediate positions on one axis, the SCT32X50X125S replaces two individually mounted cylinders and their mounting hardware. Ensure the replacement matches the 50 mm and 125 mm strokes, the PT1/8 port thread, and the -S magnet option if sensors are used. The tandem design reduces alignment complexity and overall footprint.
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