Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 160mm and 80mm give 4 controllable stop positions across a 240mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1160 mm
- Stroke 280 mm
- Total travel240 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S
The SCT50X160X80S is a tandem multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 80 mm, 160 mm, and the combined 240 mm total travel. Each of the two 50 mm bore sections generates 982 N of push force at 0.5 MPa, making it a practical choice for diverting or sorting tasks that need more than two end points without adding a second actuator.
This model includes a built-in magnet, so reed or solid-state sensors (CMSG, DMSG, EMSG) clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-position confirmation. The 20 mm diameter rod and 21 mm adjustable air cushion at each section help manage kinetic energy during high-cycle operation. Body length A(SCT) is 243 mm, with PT1/4 ports as standard.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 160 / 80 mm |
| Total travel | 240 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, 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) | 160 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 240 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X160X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×160 | 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 SCT50X160X80S Is Used
3-Way Part Diverting
Use the four discrete positions to route parts to three different conveyor lanes. Retract for lane 1, extend to 80 mm for lane 2, extend to 160 mm for lane 3, and full 240 mm extension can act as a reject or fourth lane.
Multi-Depth Pressing
Achieve two distinct pressing depths in one cycle. The first section extends to a 160 mm pre-press position, and the second section advances another 80 mm to a 240 mm final form depth, with sensor feedback at each step via the built-in magnet.
Staged Assembly Feeding
Feed components to two different assembly nests sequentially. The cylinder stops at 80 mm to deposit a part at the first station, then retracts to 0 mm, and later extends to 160 mm to load the second station, all from one actuator.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X160X80S the Right Cylinder?
Choose the SCT when your process requires three or four discrete mechanical stops from a single pneumatic circuit—this avoids the complexity and cost of two separate cylinders with external hard stops. For the 50 mm bore, the push force is 982 N per section at 0.5 MPa; if you need more thrust, stepping up to the 63 mm bore (SCT63) provides 1559 N per section at the same pressure. When replacing an existing SCT, match the bore, both strokes (160 mm and 80 mm), the built-in magnet, and the PT port thread to ensure identical mounting and sensor compatibility. With a combined stroke of 240 mm, ensure the rod is guided if significant side loads are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 160 + 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 SCT50X160X80S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 80 mm (stroke 2 only), 160 mm (stroke 1 only), and 240 mm (both strokes combined). The positions are fixed by the two section strokes and are not infinitely adjustable.
Yes, if your application needs three or four fixed positions. The SCT50X160X80S replaces two individual cylinders and their mounting hardware with a single tandem unit. Ensure the replacement matches the 50 mm bore, 160 mm and 80 mm strokes, the built-in magnet for sensors, and the PT1/4 port thread.
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