Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 110mm give 4 controllable stop positions across a 160mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 150 mm
- Stroke 2110 mm
- Total travel160 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110
The SCT40X50X110 tandem cylinder delivers four distinct rod positions—0 mm (fully retracted), 50 mm, 110 mm, and 160 mm total travel—by pressurising its two piston sections independently or together. Each 40 mm bore section generates 628 N of push force at 0.5 MPa, rising to 1130 N at the 0.9 MPa maximum operating pressure, driven through a rigid 16 mm diameter piston rod.
Built with a 235 mm tie-rod body length and 21 mm of adjustable air cushion at each end, this genuine AirTAC unit decelerates loads smoothly across its 30-800 mm/s speed range. The standard PT1/4 ports and TPU seals suit filtered-air systems operating between -20 and +70 °C, making it a compact alternative to two separate cylinders for sequenced stopping tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 50 / 110 mm |
| Total travel | 160 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 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) | 110 mm |
| P3 (both extended) | 160 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT40X50X110
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×110 | 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 SCT40X50X110 Is Used
Two-Stage Diverter Gate
Operates a conveyor diverter with a partial-open position at 50 mm for sorting small items and a full-open position at 160 mm for large packages, with zero and 110 mm as intermediate holding points.
Multi-Depth Clamping Fixture
Provides three clamping depths on a machining fixture: 50 mm for thin workpieces, 110 mm for medium sections, and 160 mm for the thickest parts, all from one compact tandem cylinder.
Sequential Part Ejection
Ejects parts from a die in two stages—a 50 mm primary push to break the part free, followed by a 110 mm secondary stroke to clear the tooling area, using the 0 mm and 160 mm positions for home and full-extend.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X50X110 the Right Cylinder?
Choose the SCT40X50X110 when your process needs four fixed mechanical stops without the complexity of external hard stops or dual-cylinder sequencing. If the 628 N per-section push force is marginal, stepping up to the 50 mm bore SCT50X50X110 provides 982 N per section at the same 0.5 MPa pressure. For a direct replacement, match the 40 mm bore, both 50 mm and 110 mm section strokes, PT port thread, and basic mounting style exactly.
The 110 mm second stroke is relatively short, so rod bending under side load is unlikely in most guided applications. If the load is not externally supported, adding a guide rod or linear bearing is recommended to protect the 16 mm rod and internal bushings from off-axis forces.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 110 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 SCT40X50X110 FAQ
The four discrete rod positions are 0 mm (fully retracted), 50 mm (section one extended), 110 mm (section two extended), and 160 mm (both sections extended, total travel). You select the position by pressurising the appropriate cylinder section or both simultaneously.
Yes, it is designed as a direct tandem replacement for two individually mounted cylinders that were sequenced for multi-stop positioning. Ensure the replacement matches both the 50 mm and 110 mm strokes, the 40 mm bore, PT1/4 ports, and the basic (no bracket) mounting configuration to maintain identical stop points and mounting envelope.
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