Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 5mm give 4 controllable stop positions across a 80mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 175 mm
- Stroke 25 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5
The AirTAC SCT32X75X5 is a tie-rod multi-position cylinder that creates four distinct rod positions from two strokes on a common axis: 0 mm (fully retracted), 5 mm, 75 mm, and the combined total travel of 80 mm. By pressurising the short 5 mm section, the long 75 mm section, or both, a machine designer can achieve a compact two-depth actuation sequence without needing two separate cylinders and their associated bracketry.
Each piston section delivers 402 N of push force at 0.5 MPa (563 N at 0.7 MPa), transmitted through a 12 mm diameter rod. The body length A(SCT) is 233 mm, and the 21 mm adjustable air cushion at each end helps manage end-of-stroke impact. PT1/8 ports and an M10x1.25 rod thread are standard.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 75 / 5 mm |
| Total travel | 80 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) | 5 mm |
| P3 (both extended) | 80 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 SCT32X75X5
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT32X75X5 Is Used
Two-Depth Part Insertion
Uses the 5 mm stop for a light press-fit or locating step, then advances to the full 80 mm position for final seating, all from one actuator.
Compact Gate Diverter
The 5 mm position acts as a 'cracked-open' state for sampling, while the 75 mm and 80 mm positions route product to two different downstream lanes.
Staged Clamping Fixture
Applies a low-force 5 mm pre-clamp to align a part, then engages the full 75 mm stroke for high-force holding during machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X75X5 the Right Cylinder?
Choose the SCT32X75X5 when your application requires a short precision stop (5 mm) followed by a longer 75 mm stroke from a single compact unit. If the 402 N per-section push force is marginal, stepping up to the SCT40 bore provides 628 N at the same pressure. For replacement, match the 32 mm bore, both strokes (75 mm and 5 mm), PT port thread, and basic mounting. Because the 75 mm stroke is relatively short, rod bending is not a primary concern, but ensure the load is guided if side forces are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 5 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 SCT32X75X5 FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 5 mm (short stroke extended), 75 mm (long stroke extended), and 80 mm (both strokes extended). These are fixed positions, not infinitely variable.
Yes, it is designed to replace two individually mounted cylinders where a two-step sequence is needed on the same axis. Ensure the replacement matches the 32 mm bore, the specific 75 mm and 5 mm strokes, and the PT port thread.
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