Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 140mm and 140mm give 3 controllable stop positions across a 280mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1140 mm
- Stroke 2140 mm
- Total travel280 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S
The SCT32X140X140S tandem cylinder delivers three fixed rod positions—fully retracted (0 mm), mid-stroke (140 mm), and full extension (280 mm)—from two 140 mm piston sections on a single rod line. Each section generates 402 N of push force at 0.5 MPa (724 N at 0.9 MPa), making it a compact alternative to complex servo systems for repetitive three-stop tasks.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position feedback. The 12 mm diameter rod and 21 mm adjustable air cushion at each end ensure smooth deceleration, while the PT1/8 ports and a body length of 233 mm simplify integration into compact pneumatic circuits.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 140 / 140 mm |
| Total travel | 280 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 140 mm |
| P2 (both extended) | 280 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 SCT32X140X140S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×140 | Stroke 1 (section 1) in mm. |
| ×140 | 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 SCT32X140X140S Is Used
3-Way Part Sorting
Divert parts to three separate conveyor lanes by stopping the rod at 0, 140, or 280 mm, using the built-in magnet for sensor confirmation at each position.
Two-Depth Pressing
Perform a shallow 140 mm press operation followed by a full 280 mm deep-draw stroke in one cycle, controlled by pressurizing the first or both piston sections.
Multi-Stop Feeding
Advance material strips in two fixed increments (140 mm and 280 mm) for stamping or cutting operations, ensuring consistent feed length without a stepper motor.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X140X140S the Right Cylinder?
Choose the SCT32X140X140S when your application needs three precise, repeatable stop positions without the cost of a servo drive. Compared to using two separate cylinders with external stops, the tandem design eliminates alignment headaches and reduces overall footprint. If you need more force per section, step up to the SCT40 bore, which provides 628 N of push at 0.5 MPa.
For a direct replacement, match the 32 mm bore, both 140 mm strokes, PT port thread, and the -S magnet option. Since both section strokes are under 500 mm, this is a standard-stroke model. For strokes over 300 mm, consider external guides to protect the 12 mm rod from side loads.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 140 + 140 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 SCT32X140X140S FAQ
It provides 3 distinct mechanical stop positions because both piston sections have an equal 140 mm stroke. The rod positions are fully retracted (0 mm), mid-stroke (140 mm), and fully extended (280 mm). You select the position by pressurizing the first section, the second section, or both simultaneously.
Yes, it is a direct replacement in many cases, provided the two original cylinders had 140 mm strokes and were used to achieve three discrete positions. The SCT32X140X140S combines them into one unit, saving space and eliminating the need to synchronize two separate piston rods. Ensure the replacement matches the PT1/8 port thread and the -S magnet if sensors were used.
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