Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 10mm and 120mm give 4 controllable stop positions across a 130mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 110 mm
- Stroke 2120 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S
This SCT40X10X120S multi-position cylinder provides four fixed rod positions—0 mm, 10 mm, 120 mm, and the combined 130 mm total travel—by pressurising its two tandem piston sections independently. Each 40 mm bore section delivers 628 N of push force at 0.5 MPa, driven through a 16 mm diameter rod, making it suitable for light diverting or two-stage positioning tasks.
Equipped with a built-in magnet (the -S suffix), the cylinder allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The body has a base length of 235 mm and features PT1/4 ports with adjustable pneumatic cushioning over a 21 mm stroke to manage end-of-travel impacts quietly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 10 / 120 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) | 10 mm |
| P2 (section 2) | 120 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 SCT40X10X120S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×10 | Stroke 1 (section 1) in mm. |
| ×120 | 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 SCT40X10X120S Is Used
Two-Stage Sorting Gate
Uses the 10 mm stroke to partially open a diverter for small items and the full 130 mm stroke for large packages, controlling two lanes from one actuator.
Depth-Selective Pressing
Provides a light touch at 10 mm extension for a locating function and a full 130 mm press for insertion, with sensor confirmation at each discrete stop via the built-in magnet.
Multi-Stop Part Feeding
Advances parts to a 10 mm staging position, then moves them a further 120 mm into a machine nest, using the four distinct positions for precise, repeatable material handling.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X10X120S the Right Cylinder?
Choose this SCT model when your application needs four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The short 10 mm first stage combined with a 120 mm second stage is ideal for a precise initial advance followed by a longer feed stroke. If your force requirement is lower, the 32 mm bore SCT offers 402 N push per section; for higher demands, the 50 mm bore provides 982 N.
For a direct replacement, match the 40 mm bore, both strokes (10 mm and 120 mm), PT port thread, and the integrated magnet (-S). This model uses a basic mount, so ensure your existing fixture aligns with the standard tie-rod end caps. Given the 120 mm second stage, ensure the rod is guided if significant side loads are present to prevent bending of the 16 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 10 + 120 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 SCT40X10X120S FAQ
This cylinder provides four discrete mechanical stops: fully retracted (0 mm), the first section extended (10 mm), the second section extended (120 mm), and both sections extended for the total travel (130 mm). It is not a continuously variable positioner.
Yes. The 'S' in the model code SCT40X10X120S signifies a built-in magnet. This allows you to clamp AirTAC CMSG, DMSG, or EMSG reed or solid-state sensors directly onto the cylinder's tie-rod barrel to detect piston position at any of the four stops.
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