Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50
The SCT40X100X50 tandem cylinder delivers four fixed rod positions—0 mm, 50 mm, 100 mm, and the full 150 mm extension—by pressurising two piston sections independently. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, scaling to 1130 N at the maximum operating pressure of 0.9 MPa, making it a compact alternative to complex servo setups for discrete stopping tasks.
Built on a durable tie-rod construction with a 16 mm diameter rod and M12x1.25 rod thread, this cylinder includes PT1/4 ports and an adjustable air cushion of 21 mm at each end for smooth deceleration. The body length A(SCT) is 235 mm, providing a rigid platform for multi-stop feeding or sorting applications.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 100 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 150 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 SCT40X100X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT40X100X50 Is Used
Two-Stage Sorting Gate
Use the 50 mm and 100 mm stops to divert packages to three separate conveyor lanes from a single actuator, simplifying your gate logic.
Multi-Depth Pressing
Achieve two distinct pressing depths (50 mm and 150 mm total travel) in a compact assembly station without changing tooling or using multiple cylinders.
Staged Part Feeding
Advance components to a 100 mm pre-stop for inspection, then extend fully to 150 mm for placement, all with one tandem cylinder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50 the Right Cylinder?
Choose the SCT when your process needs three or four hard stops without the cost of linear encoders. This 40 mm bore unit is ideal for moderate loads; if you need higher thrust, stepping up to the 50 mm bore (SCT50) raises per-section push to 982 N at 0.5 MPa. A direct replacement must match the 40 mm bore, both strokes (100 mm and 50 mm), PT port thread, and basic mounting style. For stroke sections over 300 mm, evaluate external guides to protect the 16 mm rod from side-load bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT40X100X50 FAQ
This model provides four distinct mechanical stop positions: fully retracted (0 mm), the first section extended (100 mm), the second section extended (50 mm), and both sections extended for the total travel of 150 mm.
Yes, if your sequence requires two fixed intermediate positions. The SCT tandem design combines two strokes on one common rod line, saving space and eliminating the need to synchronise two separate actuators. Ensure the replacement matches the 40 mm bore, 100 mm and 50 mm strokes, and PT ports.
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