Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 80mm give 4 controllable stop positions across a 180mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1100 mm
- Stroke 280 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S
The SCT50X100X80S is a tie-rod multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 80 mm, 100 mm, and 180 mm (total travel). Each 50 mm bore section delivers 982 N of push force at 0.5 MPa, making it suitable for diverting or sorting tasks that require two distinct extended stops without complex servo controls.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to mount directly on the barrel for end-of-stroke or mid-position confirmation. The 20 mm diameter rod and 21 mm adjustable air cushion at both ends ensure smooth deceleration, while the body length A(SCT) is 243 mm plus the combined stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 100 / 80 mm |
| Total travel | 180 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) | 100 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 180 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 SCT50X100X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT50X100X80S Is Used
Two-Stage Part Diverting
Actuate the 80 mm stroke to divert parts to a primary lane and the 100 mm stroke for a secondary lane, achieving four distinct gate positions from one cylinder.
Multi-Depth Pressing
Use the 80 mm and 100 mm stops for two different insertion or pressing depths in an assembly fixture, with the full 180 mm travel for part ejection.
Staggered Product Stops
Create a two-stage end stop on a conveyor line. The 80 mm position stops tall products, the 100 mm position stops short products, and retraction allows all to pass.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X100X80S the Right Cylinder?
Choose the SCT50X100X80S when your application needs four fixed mechanical stops from a single compact unit, avoiding the cost and complexity of two separate cylinders with external hard stops. If higher force is required, consider stepping up to the 63 mm bore SCT, which provides 1559 N of push per section at 0.5 MPa. For a direct replacement, match the 50 mm bore, both strokes (100 mm and 80 mm), PT port thread, and the built-in magnet (-S). Since the total travel is 180 mm, rod guiding or external support is generally not required for purely axial loads, but side loads should be avoided.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT50X100X80S FAQ
This model provides four discrete mechanical stops: 0 mm (fully retracted), 80 mm (section 2 extended), 100 mm (section 1 extended), and 180 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
No, the SCT cylinder does not lock or hold its position when air pressure is removed or a valve centers. The piston will drift under load. If you need to hold a position without live pressure, you must add an external rod lock, brake, or pilot-operated check valve.
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