Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 70mm and 290mm give 4 controllable stop positions across a 360mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 170 mm
- Stroke 2290 mm
- Total travel360 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S
The AirTAC SCT50X70X290S multi-position cylinder provides four fixed, repeatable rod positions—0 mm, 70 mm, 290 mm, and the full 360 mm combined travel—by pressurizing its two 50 mm bore piston sections independently or together. Each section generates 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa), driven through a rigid 20 mm diameter rod with PT1/4 ports and a 21 mm adjustable air cushion for end-of-stroke deceleration.
This tandem unit integrates a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise position feedback without external brackets. The body length A(SCT) is 243 mm, and the standard TPU seals suit operating temperatures from -20 to +70 °C. It is a genuine AirTAC SCT, purpose-built for applications where mechanical stops are impractical and you need more than two discrete tooling locations from a single pneumatic axis.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 70 / 290 mm |
| Total travel | 360 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, 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) | 70 mm |
| P2 (section 2) | 290 mm |
| P3 (both extended) | 360 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X70X290S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×70 | Stroke 1 (section 1) in mm. |
| ×290 | 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 SCT50X70X290S Is Used
Four-Position Diverter Gate
Direct packages or parts to four separate lanes by stopping the cylinder rod at 0, 70, 290, and 360 mm, using the built-in magnet for sensor confirmation at each position.
Multi-Depth Pressing & Staking
Perform a two-stage pressing operation with a controlled intermediate dwell at 70 mm before final insertion at the full 360 mm stroke, ensuring consistent assembly depth.
Staged Part Feeding & Lift
Lift a pallet or workpiece to three distinct working heights (70, 290, 360 mm) on an inline conveyor, using the tandem cylinder's discrete stops for ergonomic or process-specific stations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X70X290S the Right Cylinder?
Choose this SCT50X70X290S when your process requires four distinct stopping points along a single rod line—such as a diverter gate with a home, two intermediate positions, and a fully extended state—without the complexity of two separate cylinders and a coupling. If the 982 N push force per section at 0.5 MPa is insufficient, stepping up to the 63 mm bore SCT63 series provides 1559 N per section; for lighter, faster actuation, the 40 mm bore offers 628 N. The 290 mm section stroke is within standard limits, but ensure the load is guided or supported to prevent rod bending and side-load wear on the bearings. For a direct replacement, match the 50 mm bore, both 70 mm and 290 mm strokes, the PT port thread, the basic mounting style, and the integrated magnet (-S suffix).
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 70 + 290 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 SCT50X70X290S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 70 mm (section one extended), 290 mm (section two extended), and 360 mm (both sections extended, total travel). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder sections.
The SCT integrates two piston sections on a single common rod, guaranteeing coaxial alignment and reducing the overall footprint compared to coupling two individual cylinders back-to-back. It also simplifies plumbing and sensor wiring, as the built-in magnet (-S) allows a single set of barrel-mounted sensors to detect all four positions, rather than requiring sensors on two separate bodies.
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