Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 70mm and 5mm give 4 controllable stop positions across a 75mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 170 mm
- Stroke 25 mm
- Total travel75 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5
The SCT32X70X5 tandem cylinder delivers four fixed rod positions—0 mm, 5 mm, 70 mm, and the combined 75 mm total travel—from two independently controlled piston sections on a single 12 mm rod. Each section provides 402 N of push force at 0.5 MPa, rising to 724 N at the 0.9 MPa maximum operating pressure, making it a compact solution for light-duty multi-stop tasks.
Built on a tie-rod body with an A(SCT) length of 233 mm and PT1/8 ports, this model uses a 21 mm adjustable air cushion in each section to decelerate the load smoothly at every stop. The TPU seals suit standard factory air in a -20 to +70 °C range, and the basic configuration gives you a clean cylinder ready for custom bracketry.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 70 / 5 mm |
| Total travel | 75 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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) | 70 mm |
| P2 (section 2) | 5 mm |
| P3 (both extended) | 75 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X70X5
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×70 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT32X70X5 Is Used
Two-Depth Press-Fit Insertion
The 5 mm stroke sets a shallow locating depth while the 70 mm stroke completes the full press, giving a controlled two-step insertion sequence for delicate assemblies.
Dual-Position Gate Diverter
Use the 5 mm and 70 mm stops to shift a small chute gate between two distinct flow paths on a conveyor, with the 75 mm total travel providing a third bypass position.
Staged Glue Dispensing
Position a dispensing nozzle at a 5 mm pre-dispense height, then advance to the 70 mm contact position for application, improving bead consistency on uneven parts.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X70X5 the Right Cylinder?
Choose the SCT32X70X5 when your sequence needs a short precise advance (5 mm) and a longer secondary stroke (70 mm) from one compact actuator, avoiding the complexity of two separate cylinders and external hard stops. If the 402 N push force per section at 0.5 MPa is marginal, stepping up to a 40 mm bore provides 628 N per section for heavier guided loads.
For a direct dimensional and functional replacement, match the 32 mm bore, both strokes (70 mm and 5 mm), PT1/8 port thread, and the basic mounting style. Adding an -S magnet option later enables CMSG/DMSG sensor feedback for end-of-stroke confirmation at each of the four positions.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 70 + 5 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 SCT32X70X5 FAQ
This 4-position tandem cylinder stops at 0 mm (fully retracted), 5 mm (section two extended), 70 mm (section one extended), and 75 mm (both sections extended, total travel). You select the position by pressurising the corresponding cylinder section.
The SCT integrates two strokes on a single common rod line, guaranteeing coaxial alignment and reducing mounting footprint versus two individual cylinders with a coupler. It provides the same 402 N push force per actuated section at 0.5 MPa but in a simpler, pre-aligned package.
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