Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 70mm give 4 controllable stop positions across a 120mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 150 mm
- Stroke 270 mm
- Total travel120 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S
The SCT32X50X70S is a double-acting multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 50 mm, 70 mm, and the total extended travel of 120 mm. Each of its two piston sections generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty sorting or diverting tasks where multiple stop points are needed without complex controls.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable position feedback. The 12 mm diameter rod and M10x1.25 mounting thread are standard for the 32 mm bore, and the adjustable air cushion at each end (21 mm length) ensures smooth deceleration across its 30-800 mm/s speed range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 50 / 70 mm |
| Total travel | 120 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) | 50 mm |
| P2 (section 2) | 70 mm |
| P3 (both extended) | 120 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 SCT32X50X70S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×70 | 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 SCT32X50X70S Is Used
Multi-Stop Diverter Gates
Actuates a diverter gate to four distinct positions for routing small packages or components onto different conveyor lanes, using the 0, 50, 70, and 120 mm stops.
Two-Depth Pressing Station
Provides two controlled pressing depths (50 mm and 120 mm) plus a retracted home position for a light assembly fixture, with the 70 mm stop used for a part-present check.
Sequential Part Feeding
Controls a feed mechanism to advance parts in three precise steps (50, 70, and 120 mm) from a magazine, with sensor confirmation at each stage via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X50X70S the Right Cylinder?
Choose the SCT tandem cylinder when your application requires three or more discrete mechanical stops from a single pneumatic unit, eliminating the need to mount two separate cylinders back-to-back. For this 32 mm bore, the 50 mm and 70 mm stroke combination gives four distinct positions. If a higher force is needed, stepping up to the 40 mm bore provides 628 N of push force per section at the same 0.5 MPa pressure.
For a direct replacement, match the 32 mm bore, both the 50 mm and 70 mm strokes, PT port thread, and the built-in magnet (-S). This basic mounting version can be fixed using the standard tie-rod nuts; optional FA or FB flanges are available for panel mounting if required.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 70 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 SCT32X50X70S FAQ
It provides four distinct mechanical stop positions: 0 mm (fully retracted), 50 mm (first section extended), 70 mm (second section extended), and 120 mm (both sections extended). The positions are selected by pressurizing the appropriate cylinder ports.
Yes, it is designed to replace a back-to-back pair of cylinders in applications needing three or more fixed stops. A direct replacement requires matching the 32 mm bore, the exact 50 mm and 70 mm strokes, the PT port thread, and the built-in magnet (-S) for sensor compatibility.
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