Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 125mm and 350mm give 4 controllable stop positions across a 475mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1125 mm
- Stroke 2350 mm
- Total travel475 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S
The SCT32X125X350S tandem cylinder provides four fixed rod positions—0 mm, 125 mm, 350 mm, and 475 mm total travel—by combining two piston sections on a common 12 mm rod. Each section delivers 402 N of push force at 0.5 MPa (724 N at 0.9 MPa), making it a compact solution for light-duty multi-stop feeding or sorting tasks.
A built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for end-of-stroke or mid-position confirmation. The body length A is 233 mm with a 21 mm adjustable air cushion in each section, and PT1/8 ports supply the double-acting sections.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 125 / 350 mm |
| Total travel | 475 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) | 350 mm |
| P3 (both extended) | 475 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 SCT32X125X350S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×125 | Stroke 1 (section 1) in mm. |
| ×350 | 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 SCT32X125X350S Is Used
Two-Stage Diverter Gate
Use the 125 mm stroke to shift a gate to a first lane and the 350 mm stroke to reach a second lane, with full retraction for a third path.
Multi-Depth Insertion
Press a component to a shallow 125 mm depth, a deeper 350 mm depth, or the full 475 mm depth in a single assembly station.
Staggered Part Feeding
Advance parts in three distinct steps along a conveyor, using sensor feedback at each of the four discrete rod positions.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X125X350S the Right Cylinder?
This 4-position cylinder replaces complex setups that would otherwise require two separate actuators with external hard stops. The 125 mm and 350 mm stroke sections give you a short advance, a longer second step, and a combined 475 mm full extension—ideal for two-depth insertion or diverter gates. If you need more force, the SCT40 series offers 628 N push per section at 0.5 MPa.
For a drop-in replacement, match the 32 mm bore, both strokes (125 mm and 350 mm), PT ports, and the -S magnet option. When the 350 mm section extends, guide the rod externally if side loads are present to prevent bending on the 12 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 125 + 350 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 SCT32X125X350S FAQ
It provides 4 discrete mechanical stops: 0 mm (fully retracted), 125 mm (section 1 extended), 350 mm (section 2 extended), and 475 mm (both sections extended).
No. A single SC cylinder cannot replicate the four fixed stops. You must replace it with another SCT tandem cylinder matching the 32 mm bore, both 125 mm and 350 mm strokes, PT ports, and the -S magnet option.
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