Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 50mm give 3 controllable stop positions across a 100mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 150 mm
- Stroke 250 mm
- Total travel100 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50
The AirTAC SCT50X50X50 is a double-acting multi-position tie-rod cylinder that delivers three fixed rod positions—0 mm, 50 mm, and 100 mm—by pressurising its two 50 mm stroke sections independently or together. Each piston section provides 982 N of push force at 0.5 MPa, rising to 1767 N at 0.9 MPa, and the 20 mm diameter rod resists bending during short-stroke indexing.
With a body length A of 243 mm and 21 mm of adjustable air cushion at each end, this 50 mm bore tandem unit decelerates loads smoothly without external shocks. The PT1/4 ports and M16x1.5 rod thread keep connections compact, and the TPU seals suit standard -20 to +70 °C environments.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 50 / 50 mm |
| Total travel | 100 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) | 50 mm |
| P2 (both extended) | 100 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 SCT50X50X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT50X50X50 Is Used
3-Position Diverter Gate
Retract to 0 mm for lane A, extend the first section to 50 mm for lane B, or pressurise both sections to reach 100 mm for lane C—ideal for sorting conveyors.
Two-Depth Pressing Station
Use the 50 mm stop for a pre-compression step and the full 100 mm stroke for final forming, eliminating the need for a second press cylinder.
Multi-Stop Part Feeding
Index a workpiece through three precise positions (0, 50, 100 mm) for drilling, tapping, and ejection in a single fixture cycle.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X50X50 the Right Cylinder?
Choose the SCT50X50X50 when a single cylinder must reach three distinct mechanical stops without external hard stops or two separate actuators. The 50 mm bore balances force and envelope—if you need more thrust per section, step up to the SCT63 series (1559 N push at 0.5 MPa); for a lighter, faster assembly, the SCT40 delivers 628 N.
To replace an existing unit, match the 50 mm bore, both 50 mm strokes, PT port thread, and basic mounting. If your application requires sensor feedback, specify the -S magnet option so CMSG or DMSG switches can clamp directly onto the tie-rod barrel.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 50 + 50 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 SCT50X50X50 FAQ
This model provides three distinct mechanical stops because both piston sections share the same 50 mm stroke. The rod positions are 0 mm (fully retracted), 50 mm (section 1 extended), and 100 mm (both sections extended).
Yes, if your sequence requires only the three discrete stops at 0, 50, and 100 mm. The SCT tandem design eliminates the need for two individual cylinders, mounting brackets, and flow controls, but it does not double the force—each section still delivers 982 N push at 0.5 MPa.
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