Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 120mm give 4 controllable stop positions across a 200mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 180 mm
- Stroke 2120 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S
The SCT63X80X120S is a double-acting multi-position cylinder that delivers four fixed rod positions—0 mm, 80 mm, 120 mm, and the total travel of 200 mm—by pressurising its two tandem piston sections independently or together. Each section generates a push force of 1559 N at 0.5 MPa, scaling to 2805 N at 0.9 MPa, driven through a 20 mm diameter piston rod.
Equipped with a built-in magnet, this model accepts CMSG, DMSG, or EMSG sensors directly on the tie-rod barrel for non-contact position sensing. The 63 mm bore body has an A(SCT) length of 249 mm and a 28 mm adjustable air cushion, making it a robust choice for multi-stop diverting or sorting stations that require sensor feedback.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 80 / 120 mm |
| Total travel | 200 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) | 80 mm |
| P2 (section 2) | 120 mm |
| P3 (both extended) | 200 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 SCT63X80X120S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×120 | 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 SCT63X80X120S Is Used
Multi-Stop Diverting Gate
Uses the four positions (0, 80, 120, 200 mm) to route packages to three separate conveyor lanes from a single infeed, with the magnet sensor confirming each stop.
Two-Depth Pressing Station
Provides two distinct pressing depths at 80 mm and 200 mm for assembling components with different insertion forces, using the 120 mm stop as an intermediate safe position.
Staged Clamping Fixture
Clamps a workpiece at 80 mm for light machining and advances to 200 mm for a secondary heavy-cut operation, with sensor verification at each stage to prevent cycle-start errors.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X120S the Right Cylinder?
Choose the SCT63X80X120S when your process needs four distinct mechanical stops without the complexity of servo controls or two separate cylinders and external hard stops. If the 1559 N per-section push force at 0.5 MPa is more than required, stepping down to a 50 mm bore reduces it to 982 N, while moving up to an 80 mm bore increases it to 2513 N. For replacement, match the 63 mm bore, both the 80 mm and 120 mm section strokes, PT port thread, and the built-in magnet; this is a basic mount model, so confirm your existing bracket setup.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 120 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 SCT63X80X120S FAQ
This tandem cylinder provides four discrete mechanical stops: fully retracted (0 mm), the first section extended (80 mm), the second section extended (120 mm), and both sections extended for the total travel of 200 mm. It does not offer infinitely variable positioning.
Yes, if the task requires fixed stops at 80 mm and 200 mm. The SCT63X80X120S achieves this with one compact tie-rod body and a single rod line, eliminating the need to synchronise two separate cylinders. Ensure the replacement matches the 63 mm bore, both strokes, PT ports, and the magnet sensor option.
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