Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 150mm give 3 controllable stop positions across a 300mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1150 mm
- Stroke 2150 mm
- Total travel300 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S
The SCT40X150X150S is a double-acting tandem cylinder that delivers three fixed rod positions—fully retracted (0 mm), 150 mm, and full extension at 300 mm—by pressurising its two 40 mm bore sections independently or together. Each piston section generates 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa), driven through a 16 mm diameter rod with M12x1.25 male threads.
A built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback at each stop. The body length A(SCT) is 235 mm, with PT1/4 ports and a 21 mm air cushion at each end for controlled deceleration. This genuine AirTAC unit suits sorting gates and multi-depth pressing where three precise mechanical stops are needed.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 150 / 150 mm |
| Total travel | 300 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 150 mm |
| P2 (both extended) | 300 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 SCT40X150X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT40X150X150S Is Used
3-Position Diverter Gate
Use the three discrete stops (0, 150, 300 mm) to route packages or parts to left, centre, and right chutes on a conveyor line, with sensor confirmation at each position via the built-in magnet.
Two-Depth Press or Stake
Achieve a partial-engagement depth at 150 mm for pre-forming and a full-depth press at 300 mm in one cycle, eliminating the need for a secondary press station.
Multi-Stop Material Feed
Index strip material or trays forward in two fixed increments (150 mm and 300 mm) for punching, labelling, or filling operations that require consistent, repeatable advance distances.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X150S the Right Cylinder?
Choose this SCT when your sequence needs three repeatable hard stops without the complexity of two separate cylinders and external brackets. The 40 mm bore provides 628 N push per section at 0.5 MPa; if your load is lighter, the 32 mm bore (402 N) may reduce air consumption, while stepping up to a 50 mm bore (982 N) handles heavier tooling. The built-in magnet (S suffix) is factory-installed, so you can add CMSG/DMSG sensors without aftermarket bands.
For direct replacement, match the 40 mm bore, both 150 mm strokes, PT port thread, and the magnet option. The basic mounting configuration accepts the full SCT accessory set—FA/FB flanges, CA/CB devises, or LB feet—but no bracket is included as standard. With a 150 mm stroke per section, rod bending is rarely a concern under axial loads; for off-axis forces, consider an external guide or rod-alignment coupler.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 150 + 150 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 SCT40X150X150S FAQ
It provides three distinct mechanical stop positions because both stroke sections are equal at 150 mm. The rod positions are 0 mm (fully retracted), 150 mm (one section extended), and 300 mm (both sections extended, total travel). You select the position by pressurising section one, section two, or both simultaneously.
No, the magnet is a factory-built option integrated into the piston during assembly. The S suffix in the model code SCT40X150X150S confirms it is present. For a direct replacement, you must order the identical code with the -S suffix to retain compatibility with CMSG, DMSG, or EMSG sensors.
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