Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 80mm give 3 controllable stop positions across a 160mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 180 mm
- Stroke 280 mm
- Total travel160 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80
The SCT50X80X80 is a tandem multi-position cylinder that provides three fixed rod positions: fully retracted (0 mm), the first stroke extension (80 mm), and the combined total travel (160 mm). Each of its two 50 mm bore piston sections generates 982 N of push force at 0.5 MPa, giving predictable, repeatable stopping power for two-stage linear moves.
Built on a robust tie-rod design with a 20 mm diameter rod and M16x1.5 rod-end thread, this cylinder includes a 21 mm adjustable air cushion in each section for smooth deceleration. The body length A is 243 mm, and it operates on standard PT1/4 ports, making it a compact solution for sequenced pneumatic circuits.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 80 / 80 mm |
| Total travel | 160 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, 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 80 mm |
| P2 (both extended) | 160 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 SCT50X80X80
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×80 | 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 SCT50X80X80 Is Used
Two-Stage Sorting Gate
Diverts parts to two different conveyor lanes using the intermediate 80 mm and full 160 mm stop positions, simplifying pneumatic sorting systems.
Sequential Clamping
Applies a low-force initial clamp at 80 mm stroke before engaging the full 160 mm travel for a secondary high-force hold in assembly fixtures.
Dual-Position Feeding
Advances material stock to two precise depths in a step-feeding mechanism, eliminating the need for a secondary actuator in packaging lines.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X80 the Right Cylinder?
Select the SCT50X80X80 when your application requires two distinct extended positions without the complexity of multiple cylinders and external stops. It simplifies plumbing and control compared to using two separate SC50X80 units. If higher thrust is needed, consider stepping up to the 63 mm bore SCT63X80X80, which provides 1559 N of push per section at the same pressure. For a direct replacement, ensure the alternative matches the 50 mm bore, both 80 mm strokes, PT port thread, and basic mounting configuration.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 80 + 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 SCT50X80X80 FAQ
This tandem cylinder provides three distinct stop positions: 0 mm (retracted), 80 mm (first section extended), and 160 mm (both sections extended). Because both strokes are equal, the mid-position is exactly halfway through the total travel.
Yes, if your sequence requires the rod to stop at 80 mm and 160 mm. The SCT integrates both strokes on a single common rod, saving space and reducing the number of valves needed. Ensure the replacement matches the 50 mm bore, PT ports, and basic mount.
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Related AirTAC SCT Multi-Position Cylinders
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