Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 75mm give 4 controllable stop positions across a 175mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 275 mm
- Total travel175 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75
The SCT40X100X75 is a tandem multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 100 mm, 75 mm, and the total travel of 175 mm. Each 40 mm bore section provides a push force of 628 N at 0.5 MPa, making it a compact solution for sequencing two distinct extend-and-retract operations on one machine axis.
Built on a robust tie-rod design with a 16 mm diameter piston rod and PT1/4 ports, this cylinder uses adjustable air cushioning over a 21 mm length to decelerate the load smoothly at each stop. Its body length A(SCT) is 235 mm, and the per-section thrust rises to 1130 N at the maximum operating pressure of 0.9 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 75 mm |
| Total travel | 175 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) | 75 mm |
| P3 (both extended) | 175 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 SCT40X100X75
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×75 | 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 SCT40X100X75 Is Used
Two-Way Sorting Gate
Uses the 100 mm and 175 mm positions to divert packages onto two separate conveyor lanes, with the 75 mm stop serving as an intermediate staging point.
Two-Depth Pressing
Provides a 100 mm primary press stroke and a 75 mm secondary stroke for a total 175 mm insertion depth, ideal for assembling components with stepped features.
Multi-Stop Feeding
Advances parts in three controlled increments (75, 100, 175 mm) to align with different tooling stations on a linear transfer line.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X75 the Right Cylinder?
Choose the SCT40X100X75 when you need to replace two separate 40 mm bore cylinders or an SC unit with external hard stops, saving space and simplifying the pneumatic circuit. If higher force is required, stepping up to the 50 mm bore provides 982 N of push per section at 0.5 MPa. For a direct replacement, match the 40 mm bore, both strokes of 100 mm and 75 mm, PT thread, and basic mounting. A genuine AirTAC SCT of this exact configuration ensures the port layout and cushion performance are identical.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 75 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 SCT40X100X75 FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 100 mm (section 1 extended), 75 mm (section 2 extended), and 175 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely variable.
Each 40 mm bore section delivers 628 N of push force and 528 N of pull force at 0.5 MPa. At the maximum operating pressure of 0.9 MPa, the push force per section is 1130 N. The two sections do not combine their force for a single push.
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Standard models usually ship in 3-4 days.
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