Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 50mm give 4 controllable stop positions across a 200mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1150 mm
- Stroke 250 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50
The SCT63X150X50 is a tandem multi-position cylinder that delivers four fixed rod positions from two strokes on a single piston rod line. By pressurising the 150 mm section, the 50 mm section, or both, the rod locates precisely at 0 mm (retracted), 50 mm, 150 mm, or the full 200 mm total travel. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the 0.9 MPa maximum operating pressure.
This tie-rod cylinder uses a 20 mm diameter rod with M16x1.5 threads and PT1/4 ports. The adjustable air cushion at each end cap provides a 28 mm deceleration zone, and the body length A(SCT) is 249 mm. Standard TPU seals suit ambient temperatures from -20 to +70 °C, making the unit ready for general industrial multi-stop tasks right out of the box.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 150 / 50 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) | 150 mm |
| P2 (section 2) | 50 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 SCT63X150X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT63X150X50 Is Used
Two-Stage Diverter Gate
Operates a conveyor diverter with a retracted home position, a 50 mm partial-open for low-profile packages, a 150 mm mid-divert for standard cartons, and a full 200 mm stroke for tall items.
Multi-Depth Pressing
Provides four controlled insertion depths in a light assembly press. The 50 mm and 150 mm stops set shallow and intermediate press depths, while the combined 200 mm stroke delivers the full insertion.
Sequential Clamping Station
Clamps a workpiece in three distinct pressure stages. The 50 mm stop applies a light locating touch, the 150 mm stop gives a firm hold, and the 200 mm position engages a final high-force lock for machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X150X50 the Right Cylinder?
Choose the SCT63X150X50 when a single actuator must deliver four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 63 mm bore provides a useful mid-range force step: if you need more thrust, the 80 mm bore SCT80 series offers 2513 N push per section at 0.5 MPa; for a lighter, more compact solution, the 50 mm bore SCT50 delivers 982 N push at the same pressure. Always match the replacement to the exact bore, both stroke lengths (150 mm and 50 mm), PT port thread, and basic mounting configuration.
Because the 150 mm section stroke is moderate, side-loading is generally manageable, but always guide the rod externally if the payload applies a significant radial force or if the total travel approaches the rod bearing limits.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 50 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 SCT63X150X50 FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 50 mm (second section extended), 150 mm (first section extended), and 200 mm (both sections extended, total travel).
Yes, if your sequence requires fixed 50 mm and 150 mm strokes plus a combined 200 mm stroke. The SCT63X150X50 eliminates the need for two cylinders, separate mounting brackets, and external hard stops, but it does not double the force—each section still delivers the standard 1559 N push at 0.5 MPa.
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