Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 430mm and 20mm give 4 controllable stop positions across a 450mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1430 mm
- Stroke 220 mm
- Total travel450 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S
The SCT50X430X20S tandem cylinder provides four fixed rod positions—0, 20, 430, and 450 mm—from two independent piston sections on a single 20 mm rod. Each section delivers 982 N of push force at 0.5 MPa, making it a compact alternative to complex servo systems for discrete multi-stop tasks. The body length A(SCT) is 243 mm, and the integrated adjustable air cushion at each end helps manage end-of-stroke impact.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. It uses the standard PT port thread and TPU seals, rated for an operating temperature range of -20 to +70 °C. The 430 mm section stroke is a standard length, keeping lead times short for this genuine AirTAC assembly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 430 / 20 mm |
| Total travel | 450 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) | 430 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 450 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 SCT50X430X20S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×430 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT50X430X20S Is Used
Two-Stage Sorting Gate
Uses the 20 mm stroke for a quick divert and the 430 mm stroke for a full bypass, giving four distinct routing paths on a conveyor line.
Dual-Depth Pressing
Provides a light touch at 20 mm for locating and a full 430 mm stroke for the main pressing operation, all from one compact cylinder.
Multi-Stop Feeding
Delivers a part to a 20 mm staging position, then advances it 430 mm to the next station, eliminating the need for a second actuator.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X430X20S the Right Cylinder?
Choose the SCT50X430X20S when your process needs two widely separated stop points—one very short at 20 mm and one long at 430 mm—plus the fully retracted and fully extended positions. This four-position capability replaces two separate cylinders and external hard stops, reducing plumbing and mounting complexity. If you need higher force per section, step up to the 63 mm bore model, which provides 1559 N of push at the same pressure. For a direct replacement, match the 50 mm bore, both the 430 mm and 20 mm strokes, the PT port thread, and the integrated magnet sensor option. The long 430 mm stroke section may require external guide rods or a linear rail if the load has a significant side component, to protect the piston rod from bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 430 + 20 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 SCT50X430X20S FAQ
It provides four discrete stop positions: 0 mm (fully retracted), 20 mm (first section extended), 430 mm (second section extended), and 450 mm (both sections extended).
Each of the two piston sections generates 982 N of push force and 825 N of pull force when operated at 0.5 MPa air pressure. The force does not add together for multi-position moves.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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