Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 90mm give 4 controllable stop positions across a 170mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 180 mm
- Stroke 290 mm
- Total travel170 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S
The SCT63X80X90S is a double-acting multi-position cylinder that provides four distinct rod positions—0 mm, 80 mm, 90 mm, and a total travel of 170 mm—by pressurising its two tandem piston sections independently. Each section generates a push force of 1559 N at 0.5 MPa (2805 N at 0.9 MPa), making it a robust choice for sorting or diverting tasks that need more than a standard two-stop cylinder.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors for reliable end-of-stroke or mid-position detection. The 63 mm bore features a 20 mm diameter rod, M16x1.5 rod thread, and PT1/4 ports. Its tie-rod body has a base length A of 249 mm, with 28 mm of adjustable air cushion in each section to decelerate the piston smoothly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 80 / 90 mm |
| Total travel | 170 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 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) | 80 mm |
| P2 (section 2) | 90 mm |
| P3 (both extended) | 170 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X80X90S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×80 | 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 SCT63X80X90S Is Used
Four-Way Part Sorting
Direct packages or components to four distinct conveyor lanes by stopping the rod at 0, 80, 90, or 170 mm, each corresponding to a different diverter gate position.
Two-Depth Press Operation
Perform a shallow 80 mm press stroke for one product and a deeper 90 mm or full 170 mm stroke for another, all with a single actuator and simple pneumatic control.
Multi-Stop Material Stop
Act as an adjustable end-stop on a conveyor, halting workpieces at 80 mm for a quick inspection and at 170 mm for a secondary machining operation, with sensor confirmation at each point.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X90S the Right Cylinder?
Choose the SCT63X80X90S when your application requires four fixed stopping points without the complexity of servo drives or multiple separate cylinders. If the 1559 N per-section push force at 0.5 MPa is more than needed, stepping down to a 50 mm bore (982 N push at 0.5 MPa) can reduce air consumption and physical size. For a direct replacement, match the 63 mm bore, both the 80 mm and 90 mm strokes, PT port thread, basic mounting, and the -S magnet option; no other cylinder type will replicate this specific position set.
With a combined stroke of 170 mm, rod deflection is generally not a concern under axial loads, but ensure the load is guided if significant side forces are present. The built-in magnet simplifies adding position feedback without external brackets, saving assembly time.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 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 SCT63X80X90S FAQ
This tandem cylinder provides four discrete rod positions: fully retracted (0 mm), first section extended (80 mm), second section extended (90 mm), and both sections extended for the total travel of 170 mm. The stops are fixed by the two stroke lengths and are not infinitely adjustable.
The SCT integrates two piston sections on a single common rod, giving you four precise, repeatable stop positions in a more compact and mechanically simpler package than two individual cylinders with external stops or couplers. It reduces mounting hardware and alignment effort, though the per-section force remains the same as a standard SC63 cylinder (1559 N push at 0.5 MPa).
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