Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 30mm give 4 controllable stop positions across a 130mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 230 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S
The AirTAC SCT40X100X30S is a double-acting multi-position tandem cylinder that provides four distinct rod positions: 0 mm (fully retracted), 30 mm, 100 mm, and 130 mm (total travel). By pressurising the two piston sections independently or together, this 40 mm bore unit achieves fixed intermediate stops without external hard stops or complex controls. Each section delivers a push force of 628 N at 0.5 MPa, rising to 1130 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be mounted directly on the tie-rod barrel for reliable position feedback at each stop. The 16 mm diameter piston rod and 21 mm adjustable air cushion at each end ensure smooth deceleration. With a body length A of 235 mm and PT1/4 ports, it integrates neatly into compact multi-stop feeding or sorting stations where sensor confirmation of position is required.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 30 mm |
| Total travel | 130 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) | 30 mm |
| P3 (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 SCT40X100X30S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT40X100X30S Is Used
Two-Way Sorting Gate
Uses the four discrete positions (0, 30, 100, 130 mm) to direct parts into three separate lanes on a conveyor. The built-in magnet provides sensor confirmation at each diverter position.
Multi-Depth Pressing
Achieves two distinct pressing depths (30 mm and 100 mm) plus a full 130 mm retract from a single compact cylinder. Ideal for light assembly where a two-step insertion is needed.
Staged Part Feeding
Controls an escapement mechanism with a short 30 mm singulation stroke and a longer 100 mm transfer stroke. The total 130 mm travel provides a full reset position for the feeder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X30S the Right Cylinder?
Select the SCT40X100X30S when your application requires four fixed stopping points along a single linear axis, eliminating the need for two separate cylinders and a mounting bracket. The 40 mm bore provides 628 N of push force per section at 0.5 MPa. If higher force is needed, consider stepping up to the 50 mm bore SCT50X100X30, which offers 982 N per section. For a direct replacement, match the 40 mm bore, both strokes (100 mm and 30 mm), PT1/4 port thread, and the -S magnet option. This is a basic mount model; if panel mounting is required, choose an FA or FB flange variant.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 30 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 SCT40X100X30S FAQ
This tandem cylinder provides four discrete stop positions: 0 mm (fully retracted), 30 mm (section 2 extended), 100 mm (section 1 extended), and 130 mm (both sections extended for full travel). The positions are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder ports.
No. Like all standard pneumatic cylinders, the SCT40X100X30S will drift or drop if holding pressure is removed or a directional valve is centered. If a load must be mechanically locked at one of the four positions without live air pressure, an external rod brake or pilot-operated check valve must be added to the circuit.
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