Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 175mm give 4 controllable stop positions across a 325mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1150 mm
- Stroke 2175 mm
- Total travel325 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S
The SCT32X150X175S is a double-acting multi-position tandem cylinder that delivers four distinct rod positions from two strokes on a single piston rod line. By pressurising section one, section two, or both, the rod stops precisely at 0 mm, 150 mm, 175 mm, or the full combined travel of 325 mm. This model includes a built-in magnet, allowing standard CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing.
Each 32 mm bore section generates 402 N of push force and 345 N of pull force at 0.5 MPa, with a maximum push thrust of 724 N at the 0.9 MPa operating limit. The 12 mm diameter piston rod and M10x1.25 rod thread are standard for this bore, and the adjustable air cushion at each end is 21 mm long to absorb energy smoothly. The body length A(SCT) for this tandem configuration is 233 mm, making it a compact solution for multi-stop feeding or sorting tasks where a single cylinder must replace two separate actuators.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 150 / 175 mm |
| Total travel | 325 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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) | 175 mm |
| P3 (both extended) | 325 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X150X175S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×175 | 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 SCT32X150X175S Is Used
Four-Position Diverter Gate
Controls a product diverter on a conveyor line with four distinct gate angles, routing items to four separate lanes based on the pressurised cylinder sections.
Multi-Depth Part Insertion
Pushes components to three different insertion depths (150, 175, and 325 mm) in an assembly fixture, with the fully retracted position used for part loading.
Staged Clamping Fixture
Operates a clamp with three discrete clamping heights for different workpiece thicknesses, using the four rod positions to accommodate a family of parts on one machine.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X150X175S the Right Cylinder?
Select the SCT32X150X175S when a machine axis requires four fixed, repeatable stop positions without the complexity and plumbing of two independent cylinders. The 32 mm bore suits light to medium multi-position tasks; if higher per-section thrust is needed, step up to the 40 mm bore which provides 628 N of push force at 0.5 MPa. This cylinder is a direct replacement only for another AirTAC SCT with a 32 mm bore, 150 mm first stroke, 175 mm second stroke, PT port thread, basic mounting, and the -S magnet option. Since the total travel is 325 mm, ensure the rod is guided externally if significant side loads are present to prevent rod bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 175 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 SCT32X150X175S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 150 mm (section one extended), 175 mm (section two extended), and 325 mm (both sections extended, total travel). The positions are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder sections.
Yes, the SCT32X150X175S is designed to replace two individual cylinders or an SC cylinder with external hard stops when you need three or four fixed positions on one rod line. It reduces mounting hardware, saves space, and simplifies pneumatic plumbing. For a direct replacement, match the 32 mm bore, both stroke lengths (150 mm and 175 mm), PT ports, and the -S magnet option.
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