Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 150mm give 4 controllable stop positions across a 200mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 150 mm
- Stroke 2150 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S
The SCT40X50X150S is a double-acting multi-position cylinder that delivers four fixed rod positions—0 mm, 50 mm, 150 mm, and the combined total travel of 200 mm—by pressurizing its two piston sections independently or together. Each section provides a push force of 628 N at 0.5 MPa, rising to 1130 N at 0.9 MPa, driven through a 16 mm diameter rod with PT1/4 ports.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The adjustable air cushion at each end (21 mm length) decelerates the load smoothly, and the 235 mm body length A(SCT) makes it compact enough for multi-stop feeding or sorting stations where space is limited.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 50 / 150 mm |
| Total travel | 200 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) | 150 mm |
| P3 (both extended) | 200 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 SCT40X50X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT40X50X150S Is Used
Two-Stage Diverter Gate
Use the 50 mm stroke to partially open a gate for small items and the 150 mm stroke for full clearance, giving two distinct flow paths from one actuator.
Multi-Depth Pressing
Achieve a light touch-down at 50 mm extension and a full-force press at 200 mm total travel, controlling two pressing depths with a single tandem cylinder.
Selective Part Feeding
Stop a feed slide at 0 mm (closed), 50 mm (first part), 150 mm (second part), or 200 mm (full open) to meter components of different sizes onto a conveyor.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X150S the Right Cylinder?
Choose the SCT40X50X150S when your application needs four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 50 mm and 150 mm strokes give you a short advance and a longer secondary position, ideal for two-stage pressing or diverting. If you need more force per section, step up to the 50 mm bore SCT50, which provides 982 N push at 0.5 MPa; for a lighter, faster-moving load, the 32 mm bore offers 402 N push.
For a drop-in replacement, match the 40 mm bore, both strokes (50 mm and 150 mm), PT port thread, basic mounting, and the -S magnet option. Because the combined stroke reaches 200 mm, ensure the rod is guided externally if significant side loads are present to prevent bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 150 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 SCT40X50X150S FAQ
It provides four discrete rod positions: fully retracted (0 mm), first section extended (50 mm), second section extended (150 mm), and both sections extended for the total travel (200 mm). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if you currently use two individual cylinders to achieve two different stop positions, the SCT40X50X150S consolidates them into a single tandem unit with a common rod line. Ensure the replacement matches the 40 mm bore, 50 mm and 150 mm strokes, PT ports, and the -S magnet option if sensors are used.
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