Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 5mm and 85mm give 4 controllable stop positions across a 90mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 15 mm
- Stroke 285 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85
The SCT32X5X85 is a tandem multi-position pneumatic cylinder that delivers four fixed rod positions—0 mm, 5 mm, 85 mm, and the full combined travel of 90 mm—by pressurising its two piston sections independently. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty applications that need a short precision stop and a longer working stroke from a single tie-rod assembly.
Built with a 12 mm diameter piston rod and PT1/8 ports, the unit integrates a 21 mm air cushion in each section to decelerate the load quietly. The body length A(SCT) is 233 mm. It operates on filtered air from 0.15 to 1.0 MPa, with a maximum push thrust of 724 N per section at 0.9 MPa, suiting it for small-part sorting or two-depth insertion tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 5 / 85 mm |
| Total travel | 90 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) | 5 mm |
| P2 (section 2) | 85 mm |
| P3 (both extended) | 90 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 SCT32X5X85
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×5 | Stroke 1 (section 1) in mm. |
| ×85 | 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 SCT32X5X85 Is Used
Two-Depth Press Insertion
The 5 mm stroke positions a pilot pin for alignment, while the 85 mm stroke completes the full insertion, giving a two-stage press sequence from one compact actuator.
Dual-Stop Part Diverting
Uses the 5 mm, 85 mm, and 90 mm extended positions to guide a small chute gate, sorting lightweight components into three separate lanes on a packaging line.
Staged Clamping Fixture
The rod extends 5 mm to lightly pre-clamp a delicate workpiece, then advances the full 90 mm to apply final holding force, preventing part distortion during machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X5X85 the Right Cylinder?
This four-position tandem cylinder replaces setups that would otherwise require two separate 32 mm bore cylinders and external stop hardware, reducing mounting complexity and alignment time. If the 402 N push force per section at 0.5 MPa is marginal for the application, stepping up to the 40 mm bore SCT40 delivers 628 N per section. For a direct replacement, match the 32 mm bore, the exact two strokes (5 mm and 85 mm), PT port thread, and basic mounting configuration. If the 5 mm stroke section is used for a precise locating stop, ensure the supply valve to that section has high repeatability.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 5 + 85 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 SCT32X5X85 FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 5 mm (section one extended), 85 mm (section two extended), and 90 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder sections.
Yes, if the two strokes required are exactly 5 mm and 85 mm. The SCT32X5X85 integrates both strokes into a single tie-rod body, eliminating the need for a second cylinder and its mounting brackets. Ensure your porting matches the PT1/8 thread and that the per-section force of 402 N at 0.5 MPa meets your load requirements.
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