Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 50mm give 4 controllable stop positions across a 125mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 175 mm
- Stroke 250 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50
The SCT32X75X50 is a tandem multi-position cylinder that delivers four fixed rod positions from two independent piston sections on a single axis. With strokes of 75 mm and 50 mm, the reachable stops are 0 mm (fully retracted), 50 mm, 75 mm, and the combined total travel of 125 mm, selected by pressurising either section or both together.
Each 32 mm bore section produces 402 N of push force and 345 N of pull force at 0.5 MPa, rising to 724 N push at the maximum operating pressure of 0.9 MPa. The 12 mm diameter rod runs through a PT1/8 ported body with an M10x1.25 rod thread and 21 mm of adjustable end cushion, with a body length A of 233 mm. This genuine AirTAC tie-rod cylinder suits compact multi-stop feeding or diverting tasks where a single actuator must index to more than two positions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 75 / 50 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) | 75 mm |
| P2 (section 2) | 50 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 SCT32X75X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT32X75X50 Is Used
Multi-Stop Part Diverting
Directs parts to four distinct lanes or chutes by stopping the rod at 0, 50, 75, or 125 mm, eliminating the need for two separate diverting cylinders and simplifying the manifold.
Two-Depth Pressing
Provides two controlled pressing depths (50 mm and 75 mm) plus a full-extension position (125 mm) from one compact actuator, ideal for assembly stations that insert components to different set depths.
Indexed Conveyor Gate
Operates a four-position gate on a conveyor line, stopping product flow fully closed (0 mm), partially open at 50 mm or 75 mm for different package sizes, and fully open at 125 mm.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X50 the Right Cylinder?
Choose the SCT32X75X50 when a machine axis needs four discrete mechanical stops without the complexity of two separate cylinders and external hard stops. The 32 mm bore provides moderate force in a slim envelope; if the 402 N push per section at 0.5 MPa is marginal, stepping up to the 40 mm bore SCT40X75X50 raises the per-section push to 628 N at the same pressure. For replacement, match the 32 mm bore, both strokes (75 mm and 50 mm), PT port thread, and basic mounting. If the original unit carried a magnet, specify the -S suffix.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 50 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 SCT32X75X50 FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (second section extended), 75 mm (first section extended), and 125 mm (both sections extended, total travel). The stops are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder sections.
Yes, if the application requires the rod to stop at the same four positions. The SCT tandem design integrates both strokes on one common rod line, saving space and reducing mounting hardware compared to two individual cylinders with external stops. Ensure the replacement matches the 32 mm bore, 75 mm and 50 mm strokes, PT ports, and basic mounting.
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