Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 300mm give 4 controllable stop positions across a 400mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1100 mm
- Stroke 2300 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S
The SCT63X100X300S tandem cylinder delivers four fixed rod positions—0 mm, 100 mm, 300 mm, and the combined 400 mm total travel—from a single tie-rod body. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, driven through a rigid 20 mm diameter piston rod.
A built-in magnet is integrated into the piston, allowing CMSG, DMSG, or EMSG solid-state and reed sensors to clamp directly onto the barrel for non-contact position feedback. The adjustable air cushion on each section, with a 28 mm cushion length, decelerates the load smoothly at both ends of the stroke, protecting the end caps during high-cycle multi-stop operations.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 100 / 300 mm |
| Total travel | 400 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) | 300 mm |
| P3 (both extended) | 400 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 SCT63X100X300S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT63X100X300S Is Used
3-Way Diverter Gate
Actuates a chute or gate to three distinct positions—retracted (0 mm), mid-stroke (100 mm), and full extension (400 mm)—for sorting packages or bulk materials onto separate conveyors.
Two-Depth Pressing
Provides a shallow 100 mm pre-press position and a deep 400 mm final forming stroke, enabling a single cylinder to handle parts requiring two different insertion depths.
Multi-Stop Pallet Stop
Controls pallet flow on a gravity conveyor with a retracted (0 mm), partial (300 mm), and full (400 mm) stop blade, allowing precise staging of heavy loads without multiple actuators.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X300S the Right Cylinder?
This four-position unit replaces setups that would otherwise require two separate 63 mm bore cylinders and external hard stops to achieve 100 mm and 300 mm discrete positions. If your application needs higher thrust at each stop, consider stepping up to the 80 mm bore SCT80 series, which provides 2513 N of push force per section at 0.5 MPa. For a direct replacement, match the 63 mm bore, both the 100 mm and 300 mm section strokes, PT port thread, basic mounting, and the -S magnet option.
Because the second stroke extends to 300 mm, ensure the rod is adequately guided if side loads are present; a front flange (FA) or external linear guide may be needed to prevent rod deflection and premature bearing wear when the rod is fully extended to 400 mm.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 300 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 SCT63X100X300S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 100 mm (first section extended), 300 mm (second section extended), and 400 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if you need fixed stops at 100 mm and 300 mm from a single mounting envelope. The SCT63X100X300S achieves this with one tie-rod body and a common rod line, reducing alignment complexity compared to two separate SC63 cylinders. Ensure the replacement matches the 63 mm bore, PT ports, and the -S magnet option.
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