Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50 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 Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 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 SCT40X50X50
The SCT40X50X50 is a double-acting multi-position cylinder that provides three fixed rod positions: fully retracted (0 mm), the first stroke extended (50 mm), and both strokes extended for a total travel of 100 mm. Each piston section delivers 628 N of push force at 0.5 MPa, rising to 1130 N at 0.9 MPa, making it suitable for light sorting or diverting tasks.
This 40 mm bore tandem unit uses a 16 mm diameter piston rod and features adjustable air cushioning at both ends with a cushion length of 21 mm. The tie-rod construction has a body length A of 235 mm, and the standard PT1/4 ports ensure straightforward pneumatic connection.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 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 | 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 (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 (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 SCT40X50X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | 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 SCT40X50X50 Is Used
Two-Way Part Diverting
Direct parts to separate conveyor lanes by extending the rod to 50 mm for one path and 100 mm for another, simplifying small-part sorting stations.
Dual-Stroke Clamping
Apply a light pre-clamp at the 50 mm position before engaging full clamping force at the 100 mm total travel, protecting delicate assemblies.
Two-Depth Pressing
Perform a shallow 50 mm insertion followed by a full 100 mm press in sequence, ideal for multi-step assembly operations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50 the Right Cylinder?
Choose the SCT40X50X50 when your application needs two distinct extended positions without the complexity of two separate cylinders and external stops. If you require higher force, stepping up to the 50 mm bore SCT50X50X50 provides 982 N of push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both 50 mm strokes, PT port thread, and basic mounting style. If your process requires magnetic piston sensing, order the SCT40X50X50S variant with a built-in magnet.
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 SCT40X50X50 FAQ
This model provides 3 discrete mechanical stops: 0 mm (fully retracted), 50 mm (first section extended), and 100 mm (both sections extended). The equal 50 mm strokes create three distinct rod positions.
Yes, the SCT40X50X50 consolidates two 50 mm stroke actions into a single tandem body, saving mounting space and eliminating the need to synchronize two separate cylinders. Ensure the port thread (PT) and mounting style match your existing setup.
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