Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 125mm and 75mm give 4 controllable stop positions across a 200mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1125 mm
- Stroke 275 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S
The SCT32X125X75S tandem cylinder provides four fixed rod positions—0 mm, 75 mm, 125 mm, and the full 200 mm extension—by combining two piston sections on a single 12 mm rod. Each section delivers 402 N of push force at 0.5 MPa, making it a compact solution for light-duty multi-stop tasks.
This model includes a built-in magnet, allowing CMSG or DMSG sensors to clamp directly onto the tie-rod barrel for position feedback. With a 21 mm air cushion at each end and PT1/8 ports, it handles speeds up to 800 mm/s while keeping the 233 mm body length manageable in tight spaces.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 125 / 75 mm |
| Total travel | 200 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) | 125 mm |
| P2 (section 2) | 75 mm |
| P3 (both extended) | 200 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 SCT32X125X75S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×125 | 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 SCT32X125X75S Is Used
Two-Lane Diverter Gate
Diverting parts on a conveyor to two separate lanes using the 75 mm and 125 mm intermediate stops for sorting by height.
Multi-Depth Insertion
Stopping a light-duty pusher at three distinct depths—75 mm, 125 mm, and 200 mm—for inserting components into different-sized housings.
Dual-Position Bonding
Positioning a glue nozzle at two precise offset distances from a retracted home, enabling a single head to bond parts on two parallel assembly tracks.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X75S the Right Cylinder?
Choosing the SCT32X125X75S over two separate cylinders eliminates the need for complex bracketry and sequencing valves to achieve four positions. The integrated magnet simplifies sensor setup for end-of-stroke or mid-stroke detection. 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 125 mm and 75 mm strokes, PT thread, and the -S magnet suffix to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 125 + 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 SCT32X125X75S FAQ
It provides four distinct mechanical stops: fully retracted (0 mm), 75 mm, 125 mm, and the total travel of 200 mm. These are achieved by pressurizing the two piston sections independently or together.
Yes, the -S suffix means a magnet is built into the piston. You can mount AirTAC CMSG, DMSG, or EMSG series reed or solid-state sensors directly onto the tie-rod barrel to detect each position.
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