Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 220mm give 4 controllable stop positions across a 300mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 180 mm
- Stroke 2220 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220
The SCT50X80X220 is a double-acting tandem multi-position cylinder that delivers four fixed rod positions from a single compact unit: 0 mm (fully retracted), 80 mm, 220 mm, and the full combined travel of 300 mm. Each 50 mm bore section provides a push force of 982 N at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa, driven through a rigid 20 mm diameter piston rod.
Built on a proven tie-rod design with a 243 mm body length A(SCT), this cylinder uses adjustable pneumatic cushioning at both ends to manage deceleration across all stop positions. The standard PT1/4 ports and M16x1.5 rod thread ensure straightforward integration, while the TPU seals maintain reliable operation in ambient temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 80 / 220 mm |
| Total travel | 300 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) | 80 mm |
| P2 (section 2) | 220 mm |
| P3 (both extended) | 300 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 SCT50X80X220
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×220 | 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 SCT50X80X220 Is Used
Three-Way Part Sorting
Actuate a diverter gate to three distinct positions—retracted, mid-stroke at 80 mm, and fully extended at 300 mm—to sort packages by size or destination on a single conveyor line.
Multi-Depth Pressing
Use the 80 mm and 220 mm stroke positions to press components to two different controlled depths in a single cycle, ideal for staged assembly or insertion processes.
Sequential Product Stops
Deploy the rod at 80 mm to stop a leading product and at 300 mm to stop a trailing product, creating precise gating and spacing on a packaging line without multiple actuators.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220 the Right Cylinder?
Choose the SCT50X80X220 when your application requires a 50 mm bore with two distinct mid-stroke stopping points at 80 mm and 220 mm, eliminating the complexity of mounting two separate cylinders with external hard stops. If your force requirement is lower, stepping down to a 40 mm bore reduces the per-section push force to 628 N at 0.5 MPa; for higher thrust, the 63 mm bore delivers 1559 N per section. This model is a direct replacement for any existing AirTAC SCT50X80X220 with basic mounting and PT threads. For strokes over 300 mm, ensure the rod is externally guided to prevent side-loading and bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 220 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 SCT50X80X220 FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 80 mm (first section extended), 220 mm (second section extended), and 300 mm (both sections extended, total stroke). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it is designed to replace a setup with two individual cylinders and external stops. To be a direct drop-in replacement, the alternative cylinders must match the 50 mm bore, PT1/4 ports, and provide the same 80 mm and 220 mm stroke actions. The SCT achieves this in a single, pre-aligned body.
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