Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 110mm and 90mm give 4 controllable stop positions across a 200mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1110 mm
- Stroke 290 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S
The SCT40X110X90S is a double-acting multi-position pneumatic cylinder that delivers four fixed rod positions: fully retracted (0 mm), extended to the first stop at 90 mm, the second stop at 110 mm, and fully extended at a total travel of 200 mm. Each piston section generates a push force of 628 N at 0.5 MPa, driven through a 16 mm diameter rod, making it a compact solution for tasks requiring two distinct intermediate stopping points without complex servo controls.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable end-of-stroke and intermediate position sensing. The cylinder body has a base length of 235 mm and features an adjustable air cushion of 21 mm on each section to manage deceleration. With PT1/4 ports and a standard TPU seal, it operates reliably in standard industrial temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 110 / 90 mm |
| Total travel | 200 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) | 110 mm |
| P2 (section 2) | 90 mm |
| P3 (both extended) | 200 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 SCT40X110X90S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×110 | Stroke 1 (section 1) in mm. |
| ×90 | 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 SCT40X110X90S Is Used
Two-Stage Sorting Gate
Uses the 90 mm and 110 mm positions to divert packages onto three separate conveyor lanes, with the 200 mm position acting as a reject chute, all controlled by a single actuator.
Multi-Depth Pressing
Provides two distinct pressing depths (90 mm and 110 mm) in a single cycle for assembly operations, such as installing seals at different heights within a bore, ensuring consistent insertion force.
Sequential Clamping Fixture
The four discrete positions allow a single SCT to clamp a part, retract partially for a machining operation to clear the tool, and then fully retract for part ejection, simplifying fixture control logic.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X110X90S the Right Cylinder?
Selecting an SCT40X110X90S is ideal when a machine design requires a four-position linear actuator but lacks space for two separate cylinders with external stops. This tandem unit integrates both strokes on a single common rod, simplifying plumbing and mounting. If the 628 N push force at 0.5 MPa is insufficient for the application, stepping up to a 50 mm bore SCT provides a significant force increase to 982 N per section, while a step down to a 32 mm bore offers 402 N for lighter, more dynamic loads.
For direct replacement, match the 40 mm bore, the specific stroke combination of 110 mm and 90 mm, the PT port thread, and the integrated magnet sensor option. Since the total extended length reaches 200 mm, ensure the rod is adequately guided if the payload applies a significant side load, as long tandem assemblies are more susceptible to rod deflection and bearing wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 110 + 90 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 SCT40X110X90S FAQ
This tandem cylinder provides four discrete mechanical stops. The rod positions are at 0 mm (fully retracted), 90 mm (first section extended), 110 mm (second section extended), and 200 mm (both sections extended, total travel). It does not offer infinitely variable positioning.
Yes, the SCT40X110X90S is designed to replace a setup of two standard SC cylinders with 90 mm and 110 mm strokes. It provides the same four fixed positions in a single, more compact body. Ensure the replacement matches the 40 mm bore, PT ports, and the -S magnet option for sensor compatibility.
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