Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 10mm give 4 controllable stop positions across a 60mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 210 mm
- Total travel60 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10
The SCT63X50X10 is a tandem multi-position cylinder that delivers four fixed rod positions—fully retracted (0 mm), 50 mm, 10 mm, and the combined 60 mm total travel. By pressurising one or both of its two 63 mm bore sections independently, you get repeatable mechanical stops without external hard stops or complex controls. Each actuated section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the 0.9 MPa maximum operating pressure.
The unit uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. Its tie-rod body has an A(SCT) dimension of 249 mm and an adjustable air cushion length of 28 mm on each end, helping to decelerate loads smoothly. Standard TPU seals suit operating temperatures from -20 to +70 °C, and the cylinder runs on 40 µm filtered air at speeds between 30 and 800 mm/s.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 10 mm |
| Total travel | 60 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) | 50 mm |
| P2 (section 2) | 10 mm |
| P3 (both extended) | 60 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 SCT63X50X10
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT63X50X10 Is Used
Two-Depth Press Insertion
The 50 mm stroke advances a press tool to a partial depth, and the additional 10 mm stroke completes the full insertion. This gives a consistent two-step pressing sequence from a single compact cylinder.
Dual-Position Gate Diverter
Use the 10 mm and 50 mm stops to shift a diverter gate between two distinct product paths on a conveyor. The discrete stops ensure the gate aligns perfectly every cycle without drifting.
Staged Clamping Fixture
The cylinder first extends 10 mm to bring a clamp near the workpiece, then applies full clamping force over the final 50 mm. This two-stage motion prevents impact damage on delicate parts.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X10 the Right Cylinder?
Choose the SCT63X50X10 when your application needs four distinct linear positions without the cost and footprint of two separate cylinders and a mounting bracket. The 50 mm and 10 mm strokes give you a long primary advance and a short secondary positioning step, ideal for two-stage feeding or depth selection. If you need more force, stepping up to the 80 mm bore provides 2513 N push per section at 0.5 MPa; for a lighter, more compact solution the 50 mm bore delivers 982 N.
For a drop-in replacement, match the 63 mm bore, both strokes (50 mm and 10 mm), PT thread, and basic mounting. If your model includes a magnet suffix (-S) or a specific mounting style like FA flange or CB rear clevis, those must also align. With a combined stroke of 60 mm, rod bending is not a concern, but always centre the load on the rod axis.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 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 SCT63X50X10 FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (section one extended), 10 mm (section two extended), and 60 mm (both sections extended). You select the position by pressurising the corresponding piston section or both simultaneously.
Yes, if your sequence requires two fixed stroke lengths (50 mm and 10 mm) from a common rod axis. The SCT eliminates the need for a coupling bracket and aligns both strokes on a single piston rod. Ensure your replacement matches the 63 mm bore, PT1/4 ports, and basic mounting, or add the specific suffix for magnet or flange options your current setup uses.
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