Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 53mm and 105mm give 4 controllable stop positions across a 158mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 153 mm
- Stroke 2105 mm
- Total travel158 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105
The SCT50X53X105 is a 50 mm bore multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 53 mm, 105 mm, and 158 mm (total travel). Each of its two tandem piston sections generates 982 N of push force at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa, driven through a 20 mm diameter piston rod.
This tie-rod cylinder uses PT1/4 ports and adjustable pneumatic cushioning with a cushion length of 21 mm to manage end-of-stroke deceleration. The body length A(SCT) is 243 mm. With a standard TPU seal, it operates reliably in ambient temperatures from -20 to +70 °C, making it a robust choice for multi-stop material handling tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 53 / 105 mm |
| Total travel | 158 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) | 53 mm |
| P2 (section 2) | 105 mm |
| P3 (both extended) | 158 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 SCT50X53X105
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×53 | Stroke 1 (section 1) in mm. |
| ×105 | 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 SCT50X53X105 Is Used
Two-Station Diverter Gate
Actuates a gate to three distinct open positions (53, 105, and 158 mm) for routing packages down separate conveyor lanes from a single infeed point.
Multi-Depth Pressing
Provides two controlled pressing depths (53 mm and 105 mm) for inserting components at different levels within an assembly, with full retraction at 0 mm.
Progressive Part Feeding
Advances a workpiece through a four-step sequence, stopping precisely at 53 mm, 105 mm, and the full 158 mm extension for sequential drilling or inspection operations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X53X105 the Right Cylinder?
This four-position tandem unit replaces complex setups that would otherwise require two separate cylinders and external hard stops. The discrete 53 mm and 105 mm strokes are ideal for sorting or diverting applications where components must be delivered to two distinct intermediate stations. If higher force is needed, consider stepping up to the 63 mm bore SCT, which provides 1559 N of push per section at 0.5 MPa.
When replacing an existing SCT50X53X105, match the bore, both stroke lengths (53 mm and 105 mm), and the PT port thread. This basic configuration has no magnet or mounting brackets, so ensure your fixture accepts the standard tie-rod body. For strokes exceeding 300 mm in a future application, evaluate the need for external guides to protect the 20 mm rod from side-load bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 53 + 105 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 SCT50X53X105 FAQ
It has four discrete mechanical stop positions. The rod can be positioned at 0 mm (fully retracted), 53 mm, 105 mm, and the total combined travel of 158 mm by pressurizing the two piston sections individually or together.
Yes, this is a direct design intent. The SCT50X53X105 replaces a setup with two SC50 cylinders of 53 mm and 105 mm stroke. It ensures the intermediate positions are fixed by the cylinder's internal stops, simplifying the circuit and eliminating the need for external alignment of two separate actuators.
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