Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 20mm and 30mm give 4 controllable stop positions across a 50mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 120 mm
- Stroke 230 mm
- Total travel50 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S
The SCT32X20X30S is a multi-position tandem cylinder that provides four distinct rod-end positions: fully retracted (0 mm), 20 mm, 30 mm, and the combined total travel of 50 mm. Each of its two 32 mm bore sections generates 402 N of push force at 0.5 MPa, making it suitable for light sorting or diverting tasks where multiple fixed stops are needed from a single compact unit.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position confirmation. The 12 mm diameter piston rod and PT1/8 ports keep the assembly compact, while the 21 mm adjustable air cushion at each end ensures smooth deceleration across the 30-800 mm/s speed range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 20 / 30 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) | 20 mm |
| P2 (section 2) | 30 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 SCT32X20X30S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×20 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT32X20X30S Is Used
Two-Way Diverter Gate
Positions a diverter gate at 0, 20, 30, or 50 mm to route small parts into four separate lanes on a packaging line.
Multi-Stop Label Applicator
Extends to 20 mm for a pre-peel position, 30 mm for a fine-pitch label, and 50 mm for a wide label, all from one actuator.
Staged Part Ejection
Ejects lightweight components to two different depths in an assembly fixture, using the 20 mm and 50 mm stops for distinct placement zones.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X20X30S the Right Cylinder?
Choose the SCT32X20X30S when your application requires four fixed mechanical stops without the complexity of two separate cylinders and external hard stops. If the 402 N per-section push force is marginal, stepping up to the 40 mm bore SCT40 series provides 628 N per section at the same pressure. For replacement, match the 32 mm bore, the 20 mm and 30 mm strokes, PT port thread, basic mounting, and the -S magnet option to ensure identical form, fit, and function.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 20 + 30 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 SCT32X20X30S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 20 mm, 30 mm, and the total travel of 50 mm. The positions are achieved by pressurizing the two piston sections individually or together.
Yes, it can consolidate two fixed-stroke moves into one tandem body, saving space and simplifying plumbing. Ensure the replacement matches the 32 mm bore, both the 20 mm and 30 mm strokes, PT threads, and the -S magnet option for sensor compatibility.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC SCT Multi-Position Cylinders
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