Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 100mm give 4 controllable stop positions across a 150mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 2100 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S
The AirTAC SCT63X50X100S is a tandem multi-position cylinder delivering four discrete rod stops: fully retracted (0 mm), 50 mm, 100 mm, and the full 150 mm extension. Each 63 mm bore section provides 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum 0.9 MPa operating pressure, making it a robust solution for sequenced pneumatic workflows.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position feedback. The 20 mm diameter rod, PT1/4 ports, and 28 mm air cushion on each section ensure smooth, controlled stops at every preset position without external shock absorbers.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 100 mm |
| Total travel | 150 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) | 100 mm |
| P3 (both extended) | 150 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 SCT63X50X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT63X50X100S Is Used
Two-Stage Sorting Gate
Actuates a diverter to three distinct positions—retracted for lane 1, 50 mm for lane 2, and 150 mm for lane 3—using simple pneumatic valves to sequence the two piston sections.
Multi-Depth Pressing
Provides precise mechanical stops at 50 mm and 100 mm for a two-stage pressing or staking operation, ensuring consistent part insertion depths without electronic controls.
Sequential Part Feeding
Controls a multi-stop escapement mechanism, advancing parts in 50 mm increments before a final 100 mm push, ideal for indexing conveyors or automated assembly stations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X100S the Right Cylinder?
Choose the SCT63X50X100S when your application requires four distinct mechanical stops without the complexity of servo control. For lighter loads, stepping down to a 50 mm bore reduces per-section push force to 982 N at 0.5 MPa, while moving up to an 80 mm bore increases it to 2513 N. This cylinder is a direct replacement for another AirTAC SCT of identical bore, 50 mm and 100 mm strokes, PT ports, basic mounting, and integrated magnet.
With a combined stroke of 150 mm, rod bending is generally not a concern under axial loads, but ensure the load is guided if significant side forces are present to protect the rod bearings and seals.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 100 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 SCT63X50X100S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 50 mm (first section extended), 100 mm (second section extended), and 150 mm (both sections extended). These are achieved by pressurizing the two piston sections independently or together.
Yes, it is a more compact and cost-effective alternative to using two standard cylinders with external stops. It provides the same 50 mm and 100 mm strokes on a single common rod. For a direct replacement, match the bore (63), both strokes (50, 100), PT port thread, and the built-in magnet option.
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