Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50S 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 SCT40X100X50S
The SCT40X100X50S is a tandem multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 50 mm, 100 mm, and the total travel of 150 mm. Each 40 mm bore section delivers 628 N of push force at 0.5 MPa, making it suitable for light sorting or diverting tasks where multiple end-of-stroke locations are needed from a single compact unit.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The 16 mm diameter rod and 21 mm adjustable air cushion at each end ensure smooth deceleration, while the body length A(SCT) of 235 mm keeps the assembly compact.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50S |
|---|---|
| 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 SCT40X100X50S
| 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 SCT40X100X50S Is Used
3-Way Diverter Gate
Uses the 0, 50, and 150 mm positions to direct parts from a single infeed conveyor to three separate outfeed lanes, controlled by two solenoid valves.
Two-Depth Pressing
Achieves a partial press at the 100 mm stroke and a full-depth press at the 150 mm total travel, eliminating the need for a secondary actuator or manual depth stop.
Multi-Stop Feeding
Advances material in precise 50 mm, 100 mm, or 150 mm increments for a cut-to-length operation, with sensor confirmation at each stop via the integrated magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X50S the Right Cylinder?
Choose the SCT when your application requires up to four fixed stop positions without the complexity of two separate cylinders and external hard stops. If the 628 N push force per section at 0.5 MPa is insufficient, stepping up to the 50 mm bore provides 982 N per section. For replacement, match the 40 mm bore, both the 100 mm and 50 mm strokes, PT port thread, basic mounting, and the -S magnet option exactly.
With a total stroke of 150 mm, rod bending is not a primary concern under axial loads, but ensure the load is guided if significant side forces are present.
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 SCT40X100X50S FAQ
It provides four distinct mechanical stop positions because the two strokes are different. The rod stops at 0 mm (fully retracted), 50 mm, 100 mm, and the full combined travel of 150 mm.
Yes, if your sequence requires only the discrete stops 0, 50, 100, and 150 mm. The SCT achieves this with one rod line and two piston sections, simplifying mounting and reducing the number of valves compared to two separate cylinders with external stops.
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