Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50SLB
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50SLB 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 SCT40X50X50SLB
This SCT40X50X50S tandem cylinder provides three discrete rod positions: 0 mm (fully retracted), 50 mm, and 100 mm (total travel). Each of the two piston sections generates 628 N of push force at 0.5 MPa, scaling up to 1130 N at 0.9 MPa, making it a compact power source for light sorting or diverting tasks.
Equipped with a built-in magnet (-S suffix) for direct mounting of CMSG/DMSG sensors and an LB foot bracket for stable surface installation, the unit uses a 16 mm diameter rod and PT1/4 ports. The tie-rod body has a length of 235 mm and a 21 mm air cushion, ensuring smooth deceleration at both ends of the 100 mm total stroke.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50SLB Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50SLB |
|---|---|
| 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 SCT40X50X50SLB
| 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 SCT40X50X50SLB Is Used
3-Position Diverter Gate
Use the three discrete stops (0, 50, 100 mm) to guide packages onto left, center, or right conveyor lanes with a single pneumatic circuit.
Two-Stage Part Ejection
Retract to 0 mm for standby, extend to 50 mm for a partial eject, or fully extend to 100 mm to clear taller components from a nest.
Multi-Depth Pressing
Achieve two distinct pressing depths in a light assembly fixture by pressurizing one section for a 50 mm advance or both for the full 100 mm stroke.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X50SLB the Right Cylinder?
Select the SCT when a single actuator must stop at three fixed locations without the complexity of two separate cylinders and external hard stops. For this 40 mm bore, the push force is 628 N per section at 0.5 MPa. If your application requires more thrust, stepping up to the 50 mm bore delivers 982 N per section at the same pressure. A direct replacement must match the 40 mm bore, both 50 mm strokes, PT thread, LB foot mount, and the integrated magnet to preserve sensor feedback.
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 SCT40X50X50SLB FAQ
It provides 3 distinct mechanical stops. Since both stroke sections are 50 mm, the rod can be positioned at 0 mm (retracted), 50 mm (first section extended), and 100 mm (both sections extended).
Yes, a single SCT40X50X50S can replace two SC40X50 cylinders in applications requiring three fixed positions, reducing mounting hardware and eliminating the need to synchronize two separate actuators. The replacement must match the 40 mm bore, 50 mm strokes, PT ports, LB mount, and integrated magnet.
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