Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 350mm and 200mm give 4 controllable stop positions across a 550mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1350 mm
- Stroke 2200 mm
- Total travel550 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S
The AirTAC SCT63X350X200S tandem cylinder delivers four fixed rod positions—0, 200, 350, and 550 mm—by combining two piston sections on a single 20 mm rod. Each section generates 1559 N of push force at 0.5 MPa, making it a compact alternative to two separate actuators for sequenced linear moves.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke or mid-position confirmation. The 63 mm bore body has a 249 mm base length (A dimension) and an adjustable air cushion of 28 mm, providing smooth deceleration across all stop points.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 350 / 200 mm |
| Total travel | 550 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 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) | 350 mm |
| P2 (section 2) | 200 mm |
| P3 (both extended) | 550 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X350X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×350 | Stroke 1 (section 1) in mm. |
| ×200 | 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 SCT63X350X200S Is Used
Two-Way Diverter Gate
The 200 mm and 350 mm strokes position a chute or flap to direct parts into three separate lanes, with the fully retracted position serving as a bypass.
Multi-Depth Pressing
A pressing tool stops at 200 mm for pre-compression and 350 mm for final form, while the 550 mm total travel clears the tooling for part ejection.
Staged Part Feeding
An escapement mechanism uses the 0, 200, and 350 mm positions to release one, two, or three components per cycle onto an indexing conveyor.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X350X200S the Right Cylinder?
Choose the SCT63 series when a single 63 mm bore SC cylinder cannot deliver the required number of fixed stops. The 350 mm front stroke and 200 mm rear stroke create four distinct tooling positions without external hard stops. If the 1559 N per-section push is marginal, stepping up to the 80 mm bore provides 2513 N per section at the same 0.5 MPa pressure. For replacement, match the SCT63 bore, both strokes (350X200), PT ports, basic mounting, and the -S magnet suffix to retain sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 350 + 200 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 SCT63X350X200S FAQ
It provides four discrete rod positions: 0 mm (fully retracted), 200 mm (rear section extended), 350 mm (front section extended), and 550 mm (both sections extended).
While possible, an SCT integrates both strokes into one tie-rod body, eliminating the alignment and mounting complexity of two separate cylinders or external hard stops. The built-in magnet also simplifies sensor mounting for all four positions.
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