Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 45mm and 45mm give 3 controllable stop positions across a 90mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 145 mm
- Stroke 245 mm
- Total travel90 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S
The SCT63X45X45S is a double-acting multi-position cylinder that delivers three precise, repeatable stop positions along its stroke: fully retracted (0 mm), the first section extended (45 mm), and both sections extended for the total travel (90 mm). Each piston section generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, driven through a 20 mm diameter piston rod with PT1/4 ports.
This model includes a built-in magnet (denoted by the -S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for non-contact position sensing. The cylinder body has an A(SCT) length of 249 mm and features an adjustable air cushion of 28 mm on each section, providing reliable end-of-stroke deceleration for the 63 mm bore.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 45 / 45 mm |
| Total travel | 90 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 45 mm |
| P2 (both extended) | 90 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 SCT63X45X45S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×45 | Stroke 1 (section 1) in mm. |
| ×45 | 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 SCT63X45X45S Is Used
3-Position Sorting Gate
Direct packages or components to three separate conveyor lanes by actuating the rod to its 0 mm, 45 mm, and 90 mm positions, creating a reliable diverter with sensor-confirmed stops.
Two-Depth Pressing Station
Perform a two-stage pressing or insertion operation. The first 45 mm stroke provides a pre-load or partial insertion, and the full 90 mm travel completes the final press depth.
Multi-Stop Part Feeding
Advance a workpiece through three fixed positions on an assembly line, such as a pick point, an inspection station, and a final placement location, using the 0, 45, and 90 mm rod positions.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X45S the Right Cylinder?
Select the SCT63X45X45S when your application requires three defined mechanical stops without the complexity of two independent cylinders and external hard stops. The tandem design provides a compact, pre-aligned solution for sequenced movements. If higher force is needed at the same pressure, consider stepping up to the 80 mm bore SCT80X45X45, which provides 2513 N of push force per section at 0.5 MPa. For a lower force requirement, the 50 mm bore offers 982 N.
As a direct replacement, this unit matches any AirTAC SCT63 with 45 mm strokes for both sections, a basic mounting configuration, PT port threads, and an integrated magnet. Ensure the replacement code carries the -S suffix to maintain sensor compatibility.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 45 + 45 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 SCT63X45X45S FAQ
This cylinder provides three distinct rod positions: 0 mm (fully retracted), 45 mm (first section extended), and 90 mm (both sections extended, total travel). The positions are achieved by pressurizing the first section, the second section, or both simultaneously.
The SCT tandem cylinder integrates two piston sections on a single common rod, guaranteeing perfect axial alignment between the two strokes and simplifying mounting. It eliminates the need for external coupling hardware and reduces the overall footprint compared to a back-to-back setup of two independent cylinders.
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