Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 175mm give 4 controllable stop positions across a 225mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 2175 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175
The SCT63X50X175 is a tandem multi-position cylinder that provides four distinct rod positions from two piston sections: 0 mm (fully retracted), 50 mm, 175 mm, and the combined total travel of 225 mm. Each section delivers 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, making it suitable for sorting or diverting tasks that need three intermediate stops. The 20 mm diameter rod and 28 mm air cushion at each end ensure reliable deceleration.
Built on a rugged tie-rod design with a 249 mm body length, this double-acting unit operates on filtered air from 0.15 to 1.0 MPa. Its TPU seals and PT ports suit standard factory environments from -20 to +70 °C. The four fixed positions eliminate the need for two separate cylinders and external hard stops, simplifying pneumatic circuits for multi-step feeding or gate selection.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 175 mm |
| Total travel | 225 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) | 175 mm |
| P3 (both extended) | 225 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 SCT63X50X175
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×175 | 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 SCT63X50X175 Is Used
Multi-Stop Sorting Gate
Uses the 50 mm and 175 mm positions to divert packages onto two separate conveyor lanes, with the 225 mm position for a third reject lane.
Two-Depth Pressing Station
Provides a shallow 50 mm press depth and a deeper 175 mm stroke for parts requiring a two-stage forming or insertion process.
Staged Component Feed
Advances a fixture to a 50 mm pre-load stop, then a 175 mm work position, and finally a 225 mm eject position in a lean assembly cell.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X175 the Right Cylinder?
Choose the SCT63X50X175 when your process requires four defined stopping points without the complexity of dual-cylinder setups. If you need higher force per section, step up to the 80 mm bore, which provides 2513 N push at 0.5 MPa. For a lower force profile, the 50 mm bore delivers 982 N. This model is a direct replacement for an existing AirTAC SCT63X50X175 with PT threads and basic mounting. When either stroke exceeds 300 mm, consider external guides to protect the rod from side loads.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 175 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 SCT63X50X175 FAQ
It provides four discrete mechanical stops: 0 mm, 50 mm, 175 mm, and 225 mm (the sum of both strokes). These are fixed positions selected by pressurizing the two piston sections independently or together.
Yes, it can replace a setup using two SC63 cylinders and external stops to achieve the same 50 mm and 175 mm strokes. Ensure the replacement matches the 63 mm bore, both strokes, PT port thread, and basic mounting configuration.
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