Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 55mm and 55mm give 3 controllable stop positions across a 110mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 155 mm
- Stroke 255 mm
- Total travel110 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S
The SCT32X55X55S is a double-acting multi-position tandem cylinder that delivers three fixed rod positions: fully retracted (0 mm), 55 mm, and the combined total travel of 110 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty sorting or diverting tasks where two distinct extended stops are needed from one unit.
This model includes a built-in magnet (suffix -S), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The cylinder uses a 12 mm diameter rod with M10x1.25 threads, PT1/8 ports, and a 21 mm air cushion at each end. Its body length A(SCT) is 233 mm, providing a rigid, tie-rod construction that is not an ISO 15552 profile.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 55 / 55 mm |
| Total travel | 110 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 55 mm |
| P2 (both extended) | 110 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 SCT32X55X55S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×55 | Stroke 1 (section 1) in mm. |
| ×55 | 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 SCT32X55X55S Is Used
3-Position Diverter Gate
Actuates a gate to three fixed positions—closed, partial bypass, and full open—on a compact conveyor line, controlled by pressurizing either or both cylinder sections.
Two-Depth Light Pressing
Provides two distinct pressing depths (55 mm and 110 mm) in a small assembly fixture, using the tandem piston arrangement for a repeatable two-step operation from a single actuator.
Multi-Stop Part Staging
Positions a stop pin at retracted, mid, or full-extend locations to stage light components at two different points along a linear transfer track, with sensor confirmation via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X55X55S the Right Cylinder?
Choosing this SCT model replaces the need for two separate standard cylinders and external hard stops to achieve a three-position sequence. For applications requiring slightly higher force, stepping up to the 40 mm bore SCT40X55X55S provides 628 N of push per section at the same 0.5 MPa pressure. Ensure the load is guided if the 110 mm total stroke creates a moment arm on the 12 mm rod.
To match this unit for a replacement, confirm the bore (32), both strokes (55 mm and 55 mm), the PT port thread, the basic mounting style, and the integrated magnet (-S). An exact replacement must be another AirTAC SCT32X55X55S to guarantee the same three-position sequence and sensor compatibility.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 55 + 55 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 SCT32X55X55S FAQ
It provides three discrete mechanical stop positions: 0 mm (fully retracted), 55 mm (first section extended), and 110 mm (both sections extended). The two 55 mm strokes are equal, so the mid and full-extend positions are distinct.
Functionally, two separate cylinders with external stops could mimic the three positions, but the SCT32X55X55S achieves this in a single, aligned package with a common rod line. For a direct drop-in replacement, you must use the identical SCT32X55X55S model to maintain the exact 55 mm and 110 mm stop positions, port layout, and sensor magnet.
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