Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 65mm and 65mm give 3 controllable stop positions across a 130mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 165 mm
- Stroke 265 mm
- Total travel130 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65
The SCT50X65X65 is a double-acting multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), 65 mm, and the full 130 mm total travel. Each of its two 50 mm bore sections generates 982 N of push force at 0.5 MPa, making it a compact alternative to two separate cylinders for sequenced two-stop motion.
Built on a robust tie-rod design with a 20 mm diameter piston rod and PT1/4 ports, this cylinder features a 21 mm adjustable air cushion on each section for smooth end-of-stroke deceleration. The body length A(SCT) is 243 mm, providing a rigid platform for repetitive positioning tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 65 / 65 mm |
| Total travel | 130 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) | 65 mm |
| P2 (both extended) | 130 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 SCT50X65X65
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×65 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT50X65X65 Is Used
Two-Position Diverter Gate
Uses the 65 mm and 130 mm extended positions to route product flow to two separate lanes from a single infeed, with a common retracted home position for maintenance access.
Dual-Depth Pressing
Operates a press tool to two controlled depths (65 mm and 130 mm) for a two-stage forming or insertion process, ensuring repeatable part quality without manual adjustment.
Staged Part Transfer
Advances a workpiece in two 65 mm increments along a linear fixture, allowing a pick-and-place head to interact with the part at three distinct stations from a single actuator.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X65X65 the Right Cylinder?
Choose the SCT50X65X65 when a machine axis needs to reliably reach two extended positions plus home without the complexity of servo control or multiple actuators. Since both strokes are equal, the three distinct stops are ideal for two-speed feeding or a diverter gate with a shared retract position. If higher force is needed, stepping up to the 63 mm bore provides 1559 N push per section at 0.5 MPa.
For drop-in replacement, match the 50 mm bore, both 65 mm strokes, PT port thread, and basic mounting configuration. The SCT uses standard tie-rod mounting accessories (FA, FB, CA, CB, LB) if a bracketed installation is required later.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 65 + 65 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 SCT50X65X65 FAQ
It provides three distinct mechanical stops: 0 mm (fully retracted), 65 mm (first section extended), and 130 mm (both sections extended). Because both stroke sections are equal at 65 mm, the 65 mm position is shared, resulting in three unique rod locations.
Yes, in many cases. The SCT50X65X65 integrates two 65 mm strokes on a single rod line, saving mounting space and simplifying plumbing. Ensure the per-section force of 982 N at 0.5 MPa meets your load requirements, and match the PT ports and basic mounting. An external guide is recommended if the combined 130 mm stroke creates a side-load risk.
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