Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 45mm and 110mm give 4 controllable stop positions across a 155mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 145 mm
- Stroke 2110 mm
- Total travel155 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110
The SCT63X45X110 is a double-acting multi-position tandem cylinder that provides four fixed rod positions without external hard stops. By pressurising its two 63 mm bore sections independently or together, the rod locates at 0 mm (fully retracted), 45 mm, 110 mm, or the total travel of 155 mm. Each actuated piston section delivers 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa.
This 63 mm bore model uses a 20 mm diameter piston rod with M16x1.5 threads and PT1/4 pneumatic ports. The integrated air cushion in each section provides a 28 mm adjustable deceleration zone, and the tie-rod body has an overall length A(SCT) of 249 mm. The standard TPU seals and PT port threads suit general industrial environments from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 45 / 110 mm |
| Total travel | 155 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, 28 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) | 45 mm |
| P2 (section 2) | 110 mm |
| P3 (both extended) | 155 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X45X110
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×45 | Stroke 1 (section 1) in mm. |
| ×110 | 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 SCT63X45X110 Is Used
Two-Stage Diverter Gate
Uses the 45 mm and 155 mm positions to route packages to two separate conveyor lanes, with the 110 mm position acting as a neutral bypass. The discrete stops ensure repeatable alignment without sensor calibration.
Dual-Depth Pressing Station
The 45 mm and 110 mm strokes set two distinct pressing depths in a single cycle. The tandem design eliminates the need for two separate cylinders and mechanical linkages, simplifying the tooling setup.
Multi-Stop Part Feeding
Advances components in three incremental steps (45, 110, 155 mm) for a progressive assembly operation. The air cushion on each section decelerates the load smoothly at every stop, reducing impact and noise.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X45X110 the Right Cylinder?
Choose the SCT63X45X110 when your process needs four precise, repeatable stop points without the complexity of servo control or multiple single-stroke cylinders. The 45 mm and 110 mm section strokes create asymmetric positions ideal for two-stage feeding or sorting where the intermediate stops are not equally spaced. If your thrust requirement is lower, stepping down to a 50 mm bore reduces the per-section push force to 982 N at 0.5 MPa; for heavier payloads, the 80 mm bore provides 2513 N per section. A direct replacement must match the 63 mm bore, both 45 mm and 110 mm strokes, PT1/4 ports, and basic mounting configuration. For strokes exceeding 300 mm total, consider external guide rods to prevent rod bending under side loads.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 45 + 110 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 SCT63X45X110 FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 45 mm (section 1 extended), 110 mm (section 2 extended), and 155 mm (both sections extended). The positions are fixed by the two stroke lengths and cannot be adjusted without changing the cylinder.
No, the SCT cylinder does not have a mechanical locking or holding brake. If air pressure is lost or the directional valve is centered, the piston can drift or drop under load. To hold a position without live pressure, you must add an external rod lock, a pilot-operated check valve, or a separate mechanical brake.
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