Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 25mm give 4 controllable stop positions across a 225mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1200 mm
- Stroke 225 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S
The SCT63X200X25S is a double-acting tandem cylinder that delivers four fixed rod positions: fully retracted (0 mm), 25 mm, 200 mm, and the combined total travel of 225 mm. Actuation is achieved by independently pressurizing the two piston sections, each generating a push force of 1559 N at 0.5 MPa, making it a compact alternative to complex multi-actuator setups for discrete stopping tasks.
This model features a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise end-of-stroke or intermediate position feedback. The 20 mm diameter rod and 28 mm adjustable air cushion at each section end ensure reliable deceleration, while the PT1/4 ports and M16x1.5 rod thread maintain standard AirTAC connectivity.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 200 / 25 mm |
| Total travel | 225 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) | 200 mm |
| P2 (section 2) | 25 mm |
| P3 (both extended) | 225 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 SCT63X200X25S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×25 | 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 SCT63X200X25S Is Used
Two-Depth Press Insertion
The 25 mm stroke positions a press tool for a shallow pre-set, while the 200 mm stroke completes the full-depth insertion, all from one compact cylinder body.
3-Way Part Diverting
Using the 0, 25, and 225 mm positions, a single SCT63X200X25S can direct parts to three distinct conveyor lanes, simplifying the actuator count and control logic.
Staged Clamping Fixture
The 25 mm stroke applies a light initial clamp to position a delicate workpiece, followed by the full 200 mm stroke for high-force holding, with the magnet providing clamp-state confirmation.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X25S the Right Cylinder?
Selecting this SCT configuration is ideal when an application requires a long primary stroke of 200 mm with a precise, short secondary stop at 25 mm, such as a two-depth insertion or a diverter gate with a partial-open position. If higher thrust is needed, stepping up to the 80 mm bore provides 2513 N of push force per section at the same 0.5 MPa pressure. For a direct replacement, ensure the new unit matches the 63 mm bore, both the 200 mm and 25 mm strokes, PT port thread, basic mounting, and the -S magnet option for sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 25 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 SCT63X200X25S FAQ
This tandem cylinder provides four discrete mechanical stop positions: 0 mm (fully retracted), 25 mm (section two extended), 200 mm (section one extended), and 225 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your process requires the specific 0, 25, 200, and 225 mm stop points. This tandem cylinder eliminates the need for two separate cylinders, mounting hardware, and complex sequencing, but it does not double the force output. Each section provides 1559 N of push force at 0.5 MPa.
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