Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 80mm give 4 controllable stop positions across a 230mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1150 mm
- Stroke 280 mm
- Total travel230 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S
The SCT63X150X80S is a tie-rod multi-position cylinder that delivers four fixed rod positions from two independent piston sections on a single axis. With strokes of 150 mm and 80 mm, the reachable stops are 0 mm (fully retracted), 80 mm, 150 mm, and the total travel of 230 mm when both sections are pressurized. Each actuated section provides 1559 N of push force at 0.5 MPa, scaling to 2805 N at the 0.9 MPa maximum operating pressure.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position confirmation at each stop. The 20 mm diameter rod and PT1/4 ports handle flow efficiently, while the 28 mm adjustable air cushion at each end section decelerates the load smoothly. The body length A(SCT) is 249 mm, making it a compact solution for multi-stop feeding or sorting where a servo axis would be over-engineered.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 150 / 80 mm |
| Total travel | 230 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) | 150 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 230 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 SCT63X150X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×80 | 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 SCT63X150X80S Is Used
Two-Depth Part Insertion
The 80 mm and 150 mm strokes drive a press tool to a partial-insert depth and a full-seat depth, eliminating the need for a servo-driven axis in repetitive assembly fixtures.
Three-Way Diverter Gate
Use the retracted, 80 mm, and 230 mm positions to guide packages to three separate conveyor lanes. The magnet confirms the gate is clear at each stop before the next cycle.
Multi-Stop Clamping Station
Clamp a family of parts with two distinct thicknesses. The 150 mm stroke handles the thick variant, the 80 mm stroke handles the thin one, and the 230 mm total travel provides a wide-open loading clearance.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X80S the Right Cylinder?
Choose the SCT63X150X80S when your process requires four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 150 mm and 80 mm stroke combination is ideal for a two-depth pressing operation or a diverter gate that needs a partial-open and full-open position. If your load requires slightly less force, stepping down to the 50 mm bore provides 982 N push per section; for heavier tooling, the 80 mm bore delivers 2513 N at the same 0.5 MPa.
To replace an existing unit, match the 63 mm bore, both the 150 mm and 80 mm section strokes, the PT port thread, and the integrated magnet. The basic mounting configuration uses the tie-rod extensions for direct machine frame attachment. With a combined stroke exceeding 200 mm, ensure the guided load is supported externally to prevent rod bending or side-load wear on the bearing.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 80 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 SCT63X150X80S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 80 mm (section two extended), 150 mm (section one extended), and 230 mm (both sections extended, total travel). The positions are fixed by the two stroke lengths and are selected by pressurizing the corresponding piston sections.
Yes, it is designed to replace two individually mounted cylinders that previously used external hard stops to achieve three or four positions. The SCT integrates both strokes on a single common rod, saving space and simplifying the pneumatic circuit. Ensure the replacement matches the 63 mm bore, the 150 mm and 80 mm strokes, PT ports, and the magnet-equipped barrel for sensor compatibility.
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