Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 450mm give 4 controllable stop positions across a 600mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1150 mm
- Stroke 2450 mm
- Total travel600 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S
The SCT40X150X450S tandem cylinder provides four fixed stop positions along a 600 mm total stroke by combining a 150 mm front section and a 450 mm rear section. With a 16 mm diameter piston rod and PT1/4 ports, each section delivers 628 N of push force at 0.5 MPa, making it suitable for sequencing tasks that require two distinct intermediate locations.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing at any of the four stops. The cylinder body has an A(SCT) dimension of 235 mm and features an adjustable air cushion of 21 mm on each end cap to manage end-of-stroke deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 150 / 450 mm |
| Total travel | 600 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) | 150 mm |
| P2 (section 2) | 450 mm |
| P3 (both extended) | 600 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 SCT40X150X450S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×450 | 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 SCT40X150X450S Is Used
Two-Stage Sorting Gate
Use the 150 mm and 450 mm stops to divert parts to three separate conveyor lanes from a single feed point, with the 600 mm full-extension position serving as a reject or fourth lane.
Multi-Depth Pressing
Set the 150 mm stop for a shallow pre-form operation and the 450 mm stop for a deeper main press stroke, eliminating the need for two separate press stations.
Sequential Clamping
Advance the rod to 150 mm to clamp a thin workpiece, extend to 450 mm for a thicker variant, or use the full 600 mm stroke for an open safety position, all with sensor confirmation via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X150X450S the Right Cylinder?
Choose the SCT when an application needs up to four mechanical stops without the complexity of two separate cylinders and external hard stops. For this 40 mm bore, each section pushes with 628 N at 0.5 MPa; if higher force is needed, stepping up to the 50 mm bore provides 982 N per section. The 450 mm rear stroke is long enough that rod bending should be considered—use external guides if the load is not supported axially.
To replace an existing SCT40X150X450S, match the 40 mm bore, both the 150 mm and 450 mm section strokes, the PT port thread, the basic mounting configuration, and the -S magnet option for sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 450 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 SCT40X150X450S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 150 mm (front section extended), 450 mm (rear section extended), and 600 mm (both sections extended, total travel).
Each of the two piston sections independently produces 628 N of push force and 528 N of pull force when operated at 0.5 MPa. The sections do not combine their force; they act sequentially to reach the different stop positions.
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