Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 140mm give 4 controllable stop positions across a 180mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 140 mm
- Stroke 2140 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S
The SCT32X40X140S is a tandem multi-position cylinder that delivers four distinct rod stops from two piston sections on a common axis. With strokes of 40 mm and 140 mm, the reachable positions are 0 mm (fully retracted), 40 mm, 140 mm, and the total travel of 180 mm—selected by pressurising the front section, rear section, or both simultaneously.
Each 32 mm bore section generates 402 N of push force at 0.5 MPa (724 N at 0.9 MPa), driven by a 12 mm diameter rod. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The body length A(SCT) is 233 mm, and the adjustable air cushion on each section is 21 mm long.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 40 / 140 mm |
| Total travel | 180 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) | 40 mm |
| P2 (section 2) | 140 mm |
| P3 (both extended) | 180 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 SCT32X40X140S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×140 | 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 SCT32X40X140S Is Used
Three-Way Part Sorting
Divert parts to three distinct conveyor lanes by stopping the rod at 40 mm, 140 mm, or 180 mm, directing a flipper gate to the correct path.
Multi-Depth Label Application
Apply labels at two different insertion depths on a product. The 40 mm and 140 mm stops position a tamp pad precisely for shallow and deep placement.
Staged Clamping Fixture
Clamp a workpiece with low force at the 40 mm position for alignment, then advance to the 180 mm total travel for full holding pressure during machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X140S the Right Cylinder?
This four-position actuator replaces complex setups that would otherwise require two separate cylinders with external hard stops. Choose the SCT32 when the per-section push force of 402 N at 0.5 MPa is sufficient; if the application demands more thrust, stepping up to the SCT40 provides 628 N per section at the same pressure. For direct replacement, match the 32 mm bore, both strokes (40 mm and 140 mm), the PT port thread, and the -S magnet option. The basic mounting configuration leaves the end caps ready for the accessory bracket you choose. Because the total travel reaches 180 mm, ensure the rod is guided if significant side loads are present during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 140 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 SCT32X40X140S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 40 mm, 140 mm, and the combined total travel of 180 mm. The positions are fixed by the two section strokes and are not infinitely adjustable.
Yes. The -S suffix in the model code indicates a built-in magnet is installed along the barrel. This allows you to mount CMSG reed switches or DMSG/EMSG solid-state sensors directly onto the cylinder body to detect the piston positions.
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