Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 65mm and 65mm give 3 controllable stop positions across a 130mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 165 mm
- Stroke 265 mm
- Total travel130 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65
The AirTAC SCT40X65X65 multi-position cylinder provides three fixed rod positions: fully retracted (0 mm), mid-stop at 65 mm, and fully extended at 130 mm. Each of its two piston sections delivers 628 N of push force at 0.5 MPa, making it a compact solution for two-throw sorting or diverting tasks without needing complex controls.
Built on a tie-rod body with a 16 mm diameter rod and PT1/4 ports, this tandem cylinder features a 21 mm air cushion at each end for smooth deceleration. The body length A(SCT) is 235 mm plus the combined stroke, and at the maximum operating pressure of 0.9 MPa, each section generates 1130 N of thrust.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 65 / 65 mm |
| Total travel | 130 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) | 65 mm |
| P2 (both extended) | 130 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 SCT40X65X65
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×65 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT40X65X65 Is Used
Two-Way Diverter Gate
Directs parts to one of two downstream conveyors by stopping the rod at the mid or full extension position, simplifying pneumatic sorting circuits.
Dual-Depth Pressing
Provides a light-contact pre-press at 65 mm and a full-force seating press at 130 mm for assembly operations requiring staged insertion.
Multi-Stop Feeding
Advances components in two fixed increments on a packaging line, reliably stopping at a registration point and a final push position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X65X65 the Right Cylinder?
Selecting the SCT40X65X65 gives you three distinct mechanical stops from a single actuator, eliminating the need to mount two separate cylinders or external hard stops for a two-position sequence. If your application requires higher force, stepping up to the 50 mm bore provides 982 N of push per section at the same pressure. For a direct replacement, ensure the alternative matches the 40 mm bore, both 65 mm strokes, PT thread, and basic mounting configuration.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 65 + 65 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 SCT40X65X65 FAQ
It provides three discrete mechanical stops: 0 mm (retracted), 65 mm (mid-stop), and 130 mm (full extension). The two equal strokes create these fixed positions by pressurizing one or both cylinder sections.
Yes, if you need two fixed stroke lengths on the same rod axis. The SCT tandem design integrates both strokes into one tie-rod body, reducing mounting space and eliminating the need to synchronize two separate cylinders.
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Related AirTAC SCT Multi-Position Cylinders
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