Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 60mm give 4 controllable stop positions across a 90mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 130 mm
- Stroke 260 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S
The SCT63X30X60S is a double-acting multi-position cylinder that delivers four fixed rod positions—0 mm, 30 mm, 60 mm, and the combined 90 mm stroke—by pressurizing its two tandem piston sections independently or together. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, driven through a 20 mm diameter piston rod with M16x1.5 threads and PT1/4 ports.
This model includes a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The cylinder body has a 249 mm base length and uses an adjustable air cushion with a 28 mm cushion length to manage end-of-stroke deceleration, making it a reliable choice for sorting gates or multi-depth pressing operations.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 30 / 60 mm |
| Total travel | 90 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) | 30 mm |
| P2 (section 2) | 60 mm |
| P3 (both extended) | 90 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 SCT63X30X60S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×60 | 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 SCT63X30X60S Is Used
Two-Way Part Diverting
Use the four discrete positions (0, 30, 60, 90 mm) to direct parts from a single conveyor lane into two separate downstream chutes, with the 30 mm and 60 mm stops acting as intermediate sorting gates.
Multi-Depth Pressing
Achieve two distinct pressing depths in one cycle. The 30 mm stroke provides a shallow pre-form, while the 60 mm section extends further for the final form, all controlled by simple pneumatic valving.
Staged Assembly Stop
Position a stop pin at 30 mm for component placement and at 90 mm for a full ejection stroke. The built-in magnet provides sensor confirmation at each critical position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X30X60S the Right Cylinder?
The SCT63X30X60S replaces two separate cylinders or an SC unit with external hard stops when a sequence of discrete positions is required. The 30 mm and 60 mm strokes create four distinct stopping points, which is useful for diverting parts to different chutes or operating a two-stage clamp. For applications needing higher force, stepping up to the 80 mm bore provides 2513 N of push per section at 0.5 MPa; for a lighter, more compact solution, the 50 mm bore delivers 982 N.
When replacing an existing SCT, ensure the new unit matches the 63 mm bore, both the 30 mm and 60 mm stroke lengths, the PT port thread, the basic mounting configuration, and the -S magnet option for sensor compatibility. The cylinder is a genuine AirTAC tie-rod design and is not interchangeable with ISO 15552 profiles.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 60 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 SCT63X30X60S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 30 mm (section one extended), 60 mm (section two extended), and 90 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder ports.
No. Like all standard pneumatic cylinders, the SCT63X30X60S will drift or drop if air pressure is lost or the control valve is centered. To securely hold a load at the 30 mm or 60 mm position without live pressure, you must add an external rod lock or a pilot-operated check valve in the circuit.
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