Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 10mm give 4 controllable stop positions across a 50mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 140 mm
- Stroke 210 mm
- Total travel50 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10
The SCT63X40X10 tandem cylinder delivers four distinct rod positions—0 mm, 40 mm, 10 mm, and a combined 50 mm—by pressurising its two piston sections independently. This discrete multi-stop capability eliminates the complexity of multiple cylinders and external hard stops for short, sequenced linear moves. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, with a 20 mm diameter piston rod and PT1/4 port connections.
With a 28 mm adjustable air cushion at each end, the cylinder decelerates the load smoothly across all stop positions. The body length A(SCT) is 249 mm, making it a compact solution for machinery requiring two different short advance strokes from a single actuator. It operates on standard filtered air from 0.15 to 1.0 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 40 / 10 mm |
| Total travel | 50 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 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) | 40 mm |
| P2 (section 2) | 10 mm |
| P3 (both extended) | 50 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X40X10
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×10 | 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 SCT63X40X10 Is Used
Two-Depth Part Insertion
A 10 mm stroke seats a component, followed by a 40 mm over-travel for ejection, giving precise control over two insertion depths from one cylinder.
Diverter Gate Actuation
The 10 mm and 40 mm positions shift a conveyor diverter gate to two distinct angles, routing products to separate lanes without needing two actuators.
Sequential Clamping
Applies a 10 mm low-force pre-clamp to align a workpiece, then a full 40 mm stroke to engage the main holding force, all from a single SCT unit.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X40X10 the Right Cylinder?
Select the SCT63X40X10 when your process requires two distinct short travel distances without re-tooling. If you need higher force for the same strokes, stepping up to the 80 mm bore provides 2513 N of push per section. For a direct replacement, match the 63 mm bore, both the 40 mm and 10 mm section strokes, PT thread, and basic mounting configuration exactly. The SCT's tie-rod construction means it is not a drop-in for ISO 15552 profiles; always verify the 249 mm body length against your mounting envelope.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 10 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 SCT63X40X10 FAQ
The four discrete rod positions are 0 mm (fully retracted), 40 mm (section one extended), 10 mm (section two extended), and 50 mm (both sections extended). These are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your sequence uses 10 mm and 40 mm strokes. It consolidates the motion into one tie-rod body, reducing mounting hardware and eliminating the need to synchronise two separate actuators. Ensure the porting and 249 mm body length fit your machine.
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