Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 150mm give 4 controllable stop positions across a 250mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1100 mm
- Stroke 2150 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150
The SCT63X100X150 tandem cylinder delivers four fixed rod positions—0 mm, 100 mm, 150 mm, and the full 250 mm total travel—by pressurising its two piston sections independently or together. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum 0.9 MPa operating pressure, making it a robust actuator for multi-step material handling.
Built on a tie-rod construction with a 20 mm diameter piston rod and M16x1.5 rod-end thread, this model includes a 28 mm adjustable air cushion on each section to decelerate the load smoothly. The body length A(SCT) is 249 mm plus the combined stroke, and the PT1/4 ports accept standard pneumatic fittings. The default TPU seals suit ambient temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 100 / 150 mm |
| Total travel | 250 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 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) | 150 mm |
| P3 (both extended) | 250 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X100X150
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT63X100X150 Is Used
3-Way Diverter Gate
Use the four positions to direct product flow to three separate conveyor lanes. Retract for lane one, extend to 100 mm for lane two, 150 mm for lane three, and full 250 mm stroke for a maintenance bypass.
Two-Depth Pressing Station
Achieve a partial press depth at 100 mm extension and a full-depth form at 250 mm. The 150 mm intermediate stop provides a third tooling clearance position for part ejection.
Multi-Stop Pallet Indexer
Index a pallet through four precise locations along a gravity roller track. The 1559 N push force at standard line pressure easily moves loaded pallets, while the air cushion prevents hard stops.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X150 the Right Cylinder?
Choose the SCT63X100X150 when your process needs four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. If your load requires more force, stepping up to the 80 mm bore provides 2513 N of push per section at 0.5 MPa; for a lighter, more compact solution, the 50 mm bore offers 982 N. This unit is a direct replacement only for another AirTAC SCT63X100X150 with matching PT ports and basic mounting.
With a combined stroke of 250 mm, the rod is fully supported by the front guide bush, but for applications with significant side loads or long off-centre tooling, adding an external linear guide or rod alignment coupler is recommended to prevent bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT63X100X150 FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 100 mm (section one extended), 150 mm (section two extended), and 250 mm (both sections extended). The positions are fixed by the two stroke lengths and cannot be infinitely adjusted.
No, like all standard pneumatic cylinders, the SCT63X100X150 will drift or drop if pressure is lost or the valve centre is closed. The air cushion only decelerates the piston at end-of-stroke; it does not lock the rod. To hold a load at any intermediate position without live pressure, you must add an external rod lock or a pilot-operated check valve.
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