Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 90mm give 4 controllable stop positions across a 130mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 140 mm
- Stroke 290 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S
The SCT32X40X90S tandem cylinder delivers four fixed rod positions—0 mm, 40 mm, 90 mm, and 130 mm total travel—by pressurising its two piston sections independently. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making this unit a compact solution for light sorting or diverting tasks that need more than two end-of-stroke locations.
This model includes a built-in magnet (-S suffix), allowing CMSG or DMSG sensors to clamp directly onto the tie-rod barrel for non-contact position feedback. The 12 mm diameter piston rod, PT1/8 ports, and a 21 mm air cushion on each section provide reliable deceleration. The body length A measures 233 mm, keeping the assembly compact for machine builders.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 40 / 90 mm |
| Total travel | 130 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) | 90 mm |
| P3 (both extended) | 130 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 SCT32X40X90S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×90 | 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 SCT32X40X90S Is Used
Multi-Chute Sorting
Directs parts to four different conveyor lanes by stopping the rod at 0, 40, 90, and 130 mm, each aligning with a specific chute inlet.
Two-Step Part Feeding
Advances a pusher plate to a pre-stage position at 40 mm for inspection, then extends to the full 130 mm to load the component into a nest.
Selective Depth Stamping
Positions a marking head at two distinct depths (40 mm and 90 mm) plus a retracted safe position and a full-forward 130 mm cleaning station.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X90S the Right Cylinder?
Choose the SCT32X40X90S when your process requires four distinct mechanical stops without the complexity of servo controls or multiple separate actuators. The 40 mm and 90 mm strokes create an asymmetric position pattern ideal for two-step feeding or sorting. If higher force is needed, stepping up to the SCT40 bore provides 628 N of push per section at the same 0.5 MPa pressure. For replacement, match the 32 mm bore, both strokes (40 mm and 90 mm), PT port thread, and the -S magnet option exactly; the basic mounting style means no additional brackets are included.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 90 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 SCT32X40X90S FAQ
This tandem cylinder provides four discrete mechanical stops: fully retracted (0 mm), first section extended (40 mm), second section extended (90 mm), and both sections extended for the total travel of 130 mm.
Yes, the -S suffix denotes a built-in magnet, so you can mount AirTAC CMSG, DMSG, or EMSG reed and solid-state sensors directly on the barrel to detect each of the four positions.
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