Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 350mm and 650mm give 4 controllable stop positions across a 1000mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1350 mm
- Stroke 2650 mm
- Total travel1000 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650
The SCT32X350X650 is a double-acting multi-position cylinder that provides four fixed rod positions by combining two piston sections on a single 12 mm rod. The reachable stops are at 0 mm (fully retracted), 350 mm, 650 mm, and the total travel of 1000 mm, selected by pressurising one or both sections.
With a per-section push force of 402 N at 0.5 MPa and 724 N at the maximum 0.9 MPa operating pressure, this 32 mm bore tandem drive suits light-duty sorting and diverting tasks. The cylinder body has an A(SCT) length of 233 mm, and the second stroke of 650 mm exceeds the standard 500 mm limit, making this a made-to-order configuration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 350 / 650 mm |
| Total travel | 1000 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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). This configuration exceeds the 500 mm standard section stroke, so it is a non-standard / made-to-order build. 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) | 350 mm |
| P2 (section 2) | 650 mm |
| P3 (both extended) | 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X350X650
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×350 | Stroke 1 (section 1) in mm. |
| ×650 | 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 SCT32X350X650 Is Used
Four-Position Sorting Gate
Directs parts to four separate conveyor lanes by stopping the rod at 0, 350, 650, or the full 1000 mm extension, controlled by two pneumatic valves.
Multi-Depth Pallet Stop
Positions a pallet at two intermediate depths (350 mm and 650 mm) for operator loading, then fully extends to 1000 mm to release the pallet to the next station.
Staged Component Transfer
Picks a part at 0 mm, presents it for inspection at 350 mm, moves it to an assembly nest at 650 mm, and finally pushes it into a press at the full 1000 mm stroke.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X350X650 the Right Cylinder?
Choose the SCT tandem cylinder when your application needs up to four hard stops without the complexity of two separate cylinders and external brackets. The 350 mm and 650 mm strokes create a 1000 mm total reach, ideal for multi-bin diverters. If your load requires more thrust, stepping up to the 40 mm bore provides 628 N of push per section at 0.5 MPa.
For replacement, match the 32 mm bore, both strokes (350 mm and 650 mm), the PT1/8 port thread, and the basic mounting style. Because the second stroke extends to 650 mm, ensure the rod is externally guided to prevent side-loading and bending, especially when the rod is fully extended to the 1000 mm position.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 350 + 650 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 SCT32X350X650 FAQ
This tandem cylinder provides four distinct mechanical stops: 0 mm (fully retracted), 350 mm (first section extended), 650 mm (second section extended), and 1000 mm (both sections extended). The positions are fixed by the internal piston strokes and are not infinitely adjustable.
No. Like all standard pneumatic cylinders, the SCT32X350X650 will drift or drop if air pressure is exhausted or lost. To securely hold a load at any of the four positions without live pressure, you must add an external rod lock or a pilot-operated check valve to the port circuits.
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