Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 75mm give 4 controllable stop positions across a 105mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 130 mm
- Stroke 275 mm
- Total travel105 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S
The SCT32X30X75S is a tandem multi-position cylinder that delivers four fixed rod positions—0 mm, 30 mm, 75 mm, and the combined 105 mm—from its two piston sections. With a 12 mm diameter rod and PT1/8 ports, each actuated section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty sorting or diverting tasks.
A built-in magnet is fitted as standard on this -S variant, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke or mid-position sensing. The cylinder body has an A-length of 233 mm and features an adjustable air cushion of 21 mm on each section to manage end-of-travel deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 30 / 75 mm |
| Total travel | 105 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) | 30 mm |
| P2 (section 2) | 75 mm |
| P3 (both extended) | 105 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 SCT32X30X75S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×75 | 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 SCT32X30X75S Is Used
Two-Way Part Diverting
Uses the 30 mm and 75 mm extended positions to guide parts into two separate lanes on a conveyor, with the 105 mm position acting as a third diverting gate.
Multi-Stop Pusher
Pushes a product to a 30 mm inspection point, then advances to the full 105 mm travel to reject it into a bin, using the 75 mm stop for a secondary quality check station.
Staged Clamping Fixture
Provides a 30 mm pre-clamp position to hold a delicate part before applying full 105 mm clamping pressure, preventing damage during automated assembly.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X30X75S the Right Cylinder?
This 4-position model is ideal when a single actuator must index between two different extended stops without the complexity of two separate cylinders and external hard stops. The 30 mm and 75 mm strokes provide a short advance and a longer secondary position, useful for two-stage feeding mechanisms. If higher force is needed, stepping up to the 40 mm bore provides 628 N of push per section at the same pressure. For replacement, match the 32 mm bore, both the 30 mm and 75 mm section strokes, the PT port thread, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 75 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 SCT32X30X75S FAQ
This cylinder provides four discrete rod positions: 0 mm (fully retracted), 30 mm (section 1 extended), 75 mm (section 2 extended), and 105 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it can often replace two individual cylinders and external hard stops for two-position indexing tasks, simplifying plumbing and mounting. Ensure the replacement matches the 32 mm bore, the exact 30 mm and 75 mm strokes, the PT port thread, and the -S magnet option for sensor compatibility.
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