Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 10mm give 4 controllable stop positions across a 60mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 150 mm
- Stroke 210 mm
- Total travel60 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10
The SCT40X50X10 is a tandem multi-position cylinder that delivers four fixed rod positions from two independent piston strokes: 0 mm (fully retracted), 50 mm, 10 mm, and the combined 60 mm total travel. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, making it suitable for light sorting or diverting tasks where two distinct extended stops are needed.
Built on a durable tie-rod body with a 235 mm base length A(SCT), the cylinder uses a 16 mm diameter rod with M12x1.25 threads and PT1/4 ports. Adjustable pneumatic cushioning decelerates the piston at both ends of the 21 mm cushion stroke, protecting the end caps during high-speed cycles.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 50 / 10 mm |
| Total travel | 60 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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) | 50 mm |
| P2 (section 2) | 10 mm |
| P3 (both extended) | 60 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT40X50X10
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×10 | 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 SCT40X50X10 Is Used
Two-Way Part Diverting
Uses the 10 mm and 50 mm extended positions to guide parts into two separate chutes from a single conveyor lane, simplifying the sorting station.
Dual-Depth Label Press
Applies labels at two different insertion depths (10 mm and 50 mm) on a single product line, eliminating the need for a secondary press station.
Staggered Stop Gate
Acts as a sequencing gate that stops a pallet at a 10 mm pre-stop position before moving it to the final 50 mm hold location for precise assembly operations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X10 the Right Cylinder?
Choose the SCT when a single actuator must index to two different extended positions without the complexity of two separate cylinders and external hard stops. For higher thrust, step up to the 50 mm bore, which provides 982 N of push per section at 0.5 MPa. For a lighter load, the 32 mm bore delivers 402 N.
When replacing an existing SCT, match the 40 mm bore, both strokes (50 mm and 10 mm), PT port thread, and basic mounting. If the rod must hold a load at any of the four positions without live air pressure, an external rod lock or pilot-operated check valve is necessary, as the cylinder does not provide mechanical locking.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 10 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 SCT40X50X10 FAQ
This model provides four discrete positions: 0 mm (fully retracted), 50 mm (first section extended), 10 mm (second section extended), and 60 mm (both sections extended for total travel).
The SCT integrates two piston sections on a single common rod, guaranteeing a fixed spatial relationship between the two strokes. This eliminates the alignment drift and complex sequencing logic required when synchronizing two independent cylinders to achieve the same set of stop positions.
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