Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 15mm and 10mm give 4 controllable stop positions across a 25mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 115 mm
- Stroke 210 mm
- Total travel25 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10
The SCT63X15X10 is a tandem multi-position cylinder that delivers four fixed rod positions from two independently controlled piston sections. With strokes of 15 mm and 10 mm, the reachable stops are exactly 0 mm (fully retracted), 15 mm, 10 mm, and the total travel of 25 mm, giving your machine four distinct mechanical datums without external hard stops.
Each 63 mm bore section generates 1559 N of push force at 0.5 MPa and up to 2805 N at the maximum operating pressure of 0.9 MPa, while the pull force is 1402 N at 0.5 MPa. The cylinder uses a 20 mm diameter piston rod with an M16x1.5 male thread, PT1/4 ports, and a 28 mm adjustable air cushion at each end to decelerate the load smoothly. The tie-rod body measures 249 mm in length.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 15 / 10 mm |
| Total travel | 25 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) | 15 mm |
| P2 (section 2) | 10 mm |
| P3 (both extended) | 25 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 SCT63X15X10
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×15 | Stroke 1 (section 1) in mm. |
| ×10 | 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 SCT63X15X10 Is Used
Two-Depth Press Insertion
Use the 10 mm and 15 mm stops to insert two different components to controlled depths in a single station, eliminating a secondary press or manual depth adjustment.
Diverter Gate with Dwell
The 10 mm and 25 mm positions can direct parts to two separate lanes, while the 15 mm stop provides a mid-stroke dwell for a sensor to verify part orientation before the final divert.
Multi-Stop Stamping Feed
Advance a strip by a precise 10 mm for a pilot hole, then a further 15 mm for the final blanking punch, achieving two feed pitches from one compact tandem cylinder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X15X10 the Right Cylinder?
This compact four-position actuator replaces setups that would otherwise require two separate cylinders and a mounting bracket, saving space and simplifying the pneumatic circuit. For applications needing higher force in a similar envelope, the SCT80 series offers 2513 N of push per section at 0.5 MPa. If a lighter, more nimble unit is preferred, the SCT50 bore provides 982 N per section.
When specifying a direct replacement, the match must be an AirTAC SCT63 with both a 15 mm first stroke and a 10 mm second stroke, PT port threads, and a basic mounting configuration. Since both strokes are short, rod bending is not a concern, but always align the load axially to prevent side-loading the rod bearing.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 15 + 10 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 SCT63X15X10 FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 15 mm (section 1 extended), 10 mm (section 2 extended), and 25 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder section.
No, like all standard pneumatic cylinders, the SCT does not lock or hold its position when air pressure is exhausted or lost. The piston will drift if an external force is applied. To securely hold a load at the 15 mm or any intermediate stop without live pressure, you must add an external rod lock, a mechanical brake, or a pilot-operated check valve in the circuit.
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