Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220S 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 SCT50X80X220S
The AirTAC SCT50X80X220 is a tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 80 mm, 220 mm, and the total travel of 300 mm. Each of the two 50 mm bore sections delivers 982 N of push force at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa, making it suitable for diverting or sorting tasks requiring three distinct extended stops.
This model features a 20 mm diameter piston rod and PT1/4 ports with an adjustable pneumatic cushion length of 21 mm per end. A built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors for reliable position feedback. The cylinder body length A(SCT) is 243 mm, and it operates on filtered air within a standard temperature range of -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220S |
|---|---|
| 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 SCT50X80X220S
| 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 SCT50X80X220S Is Used
Multi-Stop Diverter Gates
Actuates a conveyor gate to three distinct positions: closed (0 mm), divert to lane A (80 mm), and divert to lane B (220 mm), using the 300 mm total stroke for a maintenance bypass.
Two-Depth Clamping Fixture
Provides a retracted home position, a partial clamp at 80 mm for delicate parts, and a full-pressure clamp at 220 mm for rigid workpieces, all from a single compact cylinder.
Sequential Part Staging
Advances a part through three precise stations on an assembly line: pick (0 mm), first process (80 mm), and second process (220 mm), with the 300 mm position used for ejection.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X220S the Right Cylinder?
Selecting the SCT50X80X220 eliminates the complexity of linking two separate cylinders to achieve three extended stopping points. It is ideal when a machine sequence requires a part to be presented at two different working heights or when a diverter gate needs three distinct angular positions. For applications needing higher force, stepping up to the 63 mm bore SCT63 provides 1559 N of push per section at 0.5 MPa, while a step down to the 40 mm bore offers 628 N for lighter, faster-cycling loads.
As a direct replacement, match the 50 mm bore, both strokes (80 mm and 220 mm), PT port thread, and the built-in magnet. This cylinder uses a basic mount, so verify that your machine's existing mounting holes align with the tie-rod body. Since the total extended length reaches 300 mm, ensure the rod is guided if significant side loads are present to prevent 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 SCT50X80X220S FAQ
This tandem cylinder has four discrete mechanical stops: 0 mm (fully retracted), 80 mm (first section extended), 220 mm (second section extended), and 300 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your application currently uses two separate 50 mm bore cylinders to achieve three extended positions, the SCT50X80X220 can replace them in a single, aligned package. Ensure the replacement matches the 80 mm and 220 mm strokes, PT ports, and that your mounting arrangement is compatible with the basic tie-rod body style.
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