Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 15mm give 4 controllable stop positions across a 65mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 150 mm
- Stroke 215 mm
- Total travel65 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15
The SCT40X50X15 is a tandem multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 50 mm, 15 mm, and the total travel of 65 mm. Each piston section generates 628 N of push force at 0.5 MPa, making it a compact solution for short-stroke, multi-stop tasks where two distinct extension lengths are needed from a single tie-rod body.
Built on a 40 mm bore with a 16 mm diameter piston rod and M12x1.25 rod-end thread, this double-acting cylinder uses PT1/4 ports and features a 21 mm adjustable air cushion at each end. The body length A is 235 mm, and the unit operates reliably on filtered air from 0.15 to 1.0 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 50 / 15 mm |
| Total travel | 65 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) | 15 mm |
| P3 (both extended) | 65 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 SCT40X50X15
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT40X50X15 Is Used
Two-Way Part Diverting
Use the 50 mm and 65 mm positions to guide parts into two separate chutes on a conveyor line, eliminating the need for dual actuators.
Staggered Pusher Station
Push products to a primary stop at 50 mm, then extend fully to 65 mm for a secondary eject stroke, all from one compact tandem cylinder.
Dual-Depth Pressing
Achieve a light pre-press at the 15 mm stop and a full-depth press at 65 mm, controlling two stages of an assembly operation with discrete, repeatable positions.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X15 the Right Cylinder?
Choose the SCT40X50X15 when your process requires two different extension stops without the complexity of two separate cylinders and external hard stops. If you need higher force per section, stepping up to the 50 mm bore provides 982 N push at 0.5 MPa, while the 32 mm bore offers 402 N if a smaller footprint is preferred. For direct replacement, match the 40 mm bore, both strokes (50 mm and 15 mm), PT port thread, and basic mounting configuration.
With the longer 50 mm section stroke, ensure the rod is adequately guided if significant side loads are present, as the tandem layout extends the rod further from the front bearing.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 15 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 SCT40X50X15 FAQ
It provides four distinct rod positions: 0 mm (fully retracted), 50 mm, 15 mm, and the combined total of 65 mm. These are achieved by pressurizing the first section, the second section, or both simultaneously.
Yes, it is designed for that purpose. The SCT40X50X15 integrates two strokes into one tie-rod body, saving space and simplifying plumbing. Ensure the replacement matches the 40 mm bore, 50 mm and 15 mm strokes, PT ports, and basic mount.
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