Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 90mm and 210mm give 4 controllable stop positions across a 300mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 190 mm
- Stroke 2210 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210
The SCT63X90X210 is a tandem multi-position pneumatic cylinder that delivers four distinct rod positions from two strokes on a single axis. By pressurising either the 90 mm section, the 210 mm section, or both simultaneously, the rod stops precisely at 0 mm (fully retracted), 90 mm, 210 mm, and the total travel of 300 mm. Each piston section produces 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, driven by a 20 mm diameter rod.
This 63 mm bore tie-rod cylinder uses PT1/4 ports and an M16x1.5 rod thread, with a 28 mm adjustable air cushion at each end to decelerate the load. The body length A(SCT) is 249 mm. Operating on filtered air from 0.15 to 1.0 MPa, the standard TPU seals suit ambient temperatures of -20 to +70 °C. The four fixed stops make it ideal for diverting parts to multiple lanes or selecting between two extended tooling depths without needing two separate actuators.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 90 / 210 mm |
| Total travel | 300 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) | 90 mm |
| P2 (section 2) | 210 mm |
| P3 (both extended) | 300 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 SCT63X90X210
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×90 | Stroke 1 (section 1) in mm. |
| ×210 | 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 SCT63X90X210 Is Used
Four-lane part diverting
Use the four discrete stops (0, 90, 210, 300 mm) to sort products into four separate conveyor lanes or chutes from a single infeed point, simplifying line design.
Two-depth pressing or insertion
Achieve a shallow 90 mm press depth and a deeper 210 mm insertion depth with the same cylinder, plus a combined 300 mm stroke for part ejection, all with repeatable hard stops.
Multi-step assembly station
Advance a tooling plate to a 90 mm adhesive-dispense position, a 210 mm component-pick position, and a 300 mm full-advance placement position in one compact tandem unit.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X90X210 the Right Cylinder?
Choose the SCT63X90X210 when your process needs four fixed stopping points along a 300 mm stroke, eliminating the complexity and plumbing of two independent cylinders with external hard stops. If the 1559 N per-section push at 0.5 MPa is more than required, stepping down to a 50 mm bore SCT50X90X210 reduces the per-section force to 982 N at the same pressure. For a direct replacement, match the 63 mm bore, both the 90 mm and 210 mm strokes, PT port thread, and basic mounting configuration. Since the 210 mm section stroke is under 300 mm, rod buckling is not a primary concern for axial loads, but always align the load to prevent side-loading the 20 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 90 + 210 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 SCT63X90X210 FAQ
It provides four distinct mechanical stop positions. The rod can be located at 0 mm (fully retracted), 90 mm (first section extended), 210 mm (second section extended), and 300 mm (both sections extended). The stops are discrete and fixed by the two stroke lengths.
Yes, it is designed to replace two independently mounted cylinders where you need three or four fixed axial positions. To be a drop-in replacement, the alternative setup must match the 63 mm bore, PT1/4 ports, M16x1.5 rod thread, and the specific 90 mm and 210 mm stroke requirements. The SCT achieves the same positioning in a single, aligned package.
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