Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 20mm give 4 controllable stop positions across a 50mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 130 mm
- Stroke 220 mm
- Total travel50 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20
The SCT32X30X20 is a tandem multi-position cylinder that delivers four distinct rod positions—0 mm, 30 mm, 20 mm, and the combined 50 mm total travel—by pressurising its two piston sections independently or together. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, rising to 724 N at the maximum operating pressure of 0.9 MPa, making it a compact solution for light-duty sequencing tasks.
Built on a tie-rod body with a 12 mm diameter rod and M10x1.25 rod thread, the cylinder uses PT1/8 ports and incorporates a 21 mm adjustable air cushion in each section for smooth end-of-stroke deceleration. The body length A(SCT) is 233 mm, providing a rigid foundation for multi-stop positioning in confined spaces.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 30 / 20 mm |
| Total travel | 50 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) | 30 mm |
| P2 (section 2) | 20 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 (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 SCT32X30X20
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT32X30X20 Is Used
Two-Way Part Diverting
Use the 30 mm and 20 mm stroke positions to direct small components into two separate chutes or conveyors from a single feed point, with the 50 mm total travel acting as a third divert position.
Multi-Depth Insertion
Achieve two controlled insertion depths (20 mm and 30 mm) for pressing pins or bushings into a workpiece, with the 50 mm full extension clearing the tooling for part changeover.
Sequential Gate Control
Operate a two-stage gate or flap where the 20 mm stroke partially opens a chute for small items and the 30 mm stroke fully opens it for larger pieces, preventing jams on a packaging line.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X20 the Right Cylinder?
Choose the SCT32X30X20 when your application needs four fixed mechanical stops without the complexity of servo control or multiple single-stroke cylinders. The 30 mm and 20 mm strokes give you two intermediate positions plus the fully retracted and fully extended points, ideal for diverting parts to two different lanes. If you require higher force, stepping up to the 40 mm bore SCT40 series provides 628 N of push per section at 0.5 MPa. For replacement, match the 32 mm bore, both strokes (30 mm and 20 mm), PT port thread, and basic mounting configuration exactly.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 20 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 SCT32X30X20 FAQ
This cylinder provides four distinct mechanical stop positions: 0 mm (fully retracted), 30 mm (section one extended), 20 mm (section two extended), and 50 mm (both sections extended, giving the total travel). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in many cases it can. The SCT32X30X20 combines two piston sections on a single rod line, saving space and eliminating the need to synchronise two separate cylinders. Ensure the replacement matches the 32 mm bore, the exact 30 mm and 20 mm strokes, PT ports, and basic mounting to maintain the same interface.
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