Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 5mm and 120mm give 4 controllable stop positions across a 125mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 15 mm
- Stroke 2120 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120
The SCT63X5X120 tandem cylinder delivers four fixed rod positions—fully retracted, 5 mm, 120 mm, and the combined 125 mm travel—from a single tie-rod body. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum 0.9 MPa operating pressure, making it suitable for two-stage clamping or precise short-throw positioning tasks.
Built with a 20 mm diameter piston rod and M16x1.5 rod-end thread, this double-acting unit uses PT1/4 ports and includes a 28 mm adjustable air cushion on each section. The body length (A dimension) is 249 mm, and the standard TPU seals suit ambient temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 5 / 120 mm |
| Total travel | 125 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) | 5 mm |
| P2 (section 2) | 120 mm |
| P3 (both extended) | 125 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 SCT63X5X120
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×5 | 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 SCT63X5X120 Is Used
Two-Depth Press Insertion
The 5 mm stroke sets a component flush, while the 120 mm stroke completes a deep press-fit in a single automated cycle without tooling changes.
Dual-Position Gate Diverter
Use the four stops (0, 5, 120, 125 mm) to route parts to three separate conveyor lanes by pressurising section one, section two, or both.
Staged Clamping Fixture
The initial 5 mm advance provides a light pre-clamp for alignment, and the full 125 mm travel locks the workpiece with 2805 N of force for machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120 the Right Cylinder?
Choose the SCT63X5X120 when a process needs a very short initial advance followed by a longer secondary stroke, eliminating the complexity of two separate cylinders and external hard stops. If the 1559 N push at 0.5 MPa is insufficient, stepping up to an 80 mm bore SCT provides 2513 N per section at the same pressure. For replacement, match the 63 mm bore, both the 5 mm and 120 mm strokes, PT port thread, and basic mounting style exactly.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 5 + 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 SCT63X5X120 FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 5 mm (section one extended), 120 mm (section two extended), and 125 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
No. Like all standard pneumatic cylinders, the SCT loses position when air pressure is exhausted or a valve centres. If the load must be mechanically locked at the 5 mm or any intermediate stop without live pressure, an external rod brake or pilot-operated check valve is required.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCT Multi-Position Cylinders
Request a Quote for Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X5X120
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.