Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 250mm give 4 controllable stop positions across a 275mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 2250 mm
- Total travel275 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S
The SCT32X25X250S tandem cylinder delivers four fixed rod positions—0, 25, 250, and 275 mm—by combining two piston sections on a single 12 mm rod. Each section generates 402 N of push force at 0.5 MPa, making it suitable for light sorting or diverting tasks where distinct intermediate stops are required without complex controls.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, enabling position feedback at every stop. The tie-rod body has a 233 mm base length A(SCT) and PT1/8 ports, with an adjustable air cushion of 21 mm to manage end-of-stroke impact. Operating pressure spans 0.15–1.0 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 250 mm |
| Total travel | 275 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) | 25 mm |
| P2 (section 2) | 250 mm |
| P3 (both extended) | 275 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 SCT32X25X250S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×250 | 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 SCT32X25X250S Is Used
Two-Way Diverter Gate
Uses the 25 mm and 275 mm positions to direct small packages or components down two different conveyor lanes from a single feed point.
Multi-Stop Part Feeding
Advances parts in three distinct steps (25, 250, 275 mm) for a progressive assembly or stamping process, with sensor confirmation at each stage via the built-in magnet.
Dual-Depth Pressing
Provides a shallow 25 mm pre-press position and a full 275 mm final pressing depth, ensuring consistent two-stage forming in a compact fixture.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X250S the Right Cylinder?
Choose the SCT32 when you need up to four discrete mechanical stops from a single compact unit, avoiding the cost and complexity of two separate cylinders with external hard stops. If higher force is needed, step up to the SCT40, which provides 628 N of push per section at the same 0.5 MPa. For replacement, match the 32 mm bore, both strokes (25 mm and 250 mm), the PT port thread, and the -S magnet option. With a 250 mm section stroke, ensure the rod is adequately guided if significant side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 250 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 SCT32X25X250S FAQ
It provides four distinct mechanical stop positions: 0 mm (fully retracted), 25 mm, 250 mm, and the total travel of 275 mm. These are achieved by pressurizing the two piston sections independently or together.
Yes, if your application requires fixed stops at 25 mm and 275 mm. It replaces two individually mounted cylinders and their stop hardware with one tandem unit. Ensure the replacement matches the 32 mm bore, PT ports, and the magnet option if sensor feedback is needed.
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