Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 40mm give 4 controllable stop positions across a 100mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 160 mm
- Stroke 240 mm
- Total travel100 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40
The SCT63X60X40 is a double-acting multi-position tandem cylinder providing four distinct rod positions: fully retracted (0 mm), 40 mm, 60 mm, and fully extended at 100 mm total travel. By pressurising the two piston sections independently or together, you gain fixed intermediate stops without external hardware. Each 63 mm bore section delivers 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa.
This tie-rod cylinder uses a 20 mm diameter piston rod with an M16x1.5 male thread and PT1/4 ports. Its adjustable pneumatic cushioning at both ends, with a 28 mm cushion length, decelerates the load smoothly. The body length A(SCT) is 249 mm, providing a compact envelope for a multi-stop actuator.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 60 / 40 mm |
| Total travel | 100 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) | 60 mm |
| P2 (section 2) | 40 mm |
| P3 (both extended) | 100 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 SCT63X60X40
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT63X60X40 Is Used
Two-Stage Part Diverting
Actuate to 40 mm to divert small components to a first chute, then extend to 60 mm for a second lane, keeping the 100 mm full-extension position for a reject path.
Multi-Depth Pressing
Use the 40 mm stop for a pre-compression step and the 60 mm position for final insertion depth, ensuring consistent assembly force at two distinct levels.
Sequential Clamping
Apply a light clamp at 40 mm for positioning, followed by full clamping force at 60 mm, using the retracted and 100 mm positions for part loading and unloading.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X40 the Right Cylinder?
Choose the SCT63X60X40 when your application requires two fixed intermediate positions between retracted and extended, avoiding the complexity and cost of two separate cylinders with external stops. If the 1559 N push force per section is insufficient, stepping up to an 80 mm bore SCT provides 2513 N per section at the same 0.5 MPa. For a direct replacement, match the 63 mm bore, both strokes (60 mm and 40 mm), PT thread, and basic mounting. Always ensure the load is externally guided if side forces are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 40 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 SCT63X60X40 FAQ
This model has four discrete mechanical stop positions: 0 mm (fully retracted), 40 mm, 60 mm, and 100 mm (fully extended). The positions are achieved by pressurising the first section, the second section, or both sections simultaneously.
Yes, if your sequence requires two fixed intermediate strokes of 40 mm and 60 mm from a common retracted position. The SCT63X60X40 integrates both strokes into one tie-rod body, simplifying mounting and eliminating the need to synchronise two separate actuators. Ensure the port thread (PT) and mounting style match your machine.
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