Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 8mm give 4 controllable stop positions across a 88mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 180 mm
- Stroke 28 mm
- Total travel88 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8
The SCT63X80X8 tandem cylinder delivers four fixed rod positions—0, 8, 80, and 88 mm—by combining an 80 mm primary stroke with a compact 8 mm secondary stroke on a single piston rod. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa (2805 N at 0.9 MPa), making it suitable for tasks that need a long travel with a precise short-step offset, such as two-depth pressing or gate selection.
Built on a tie-rod design with a 20 mm diameter rod and PT1/4 ports, this double-acting unit includes a 28 mm adjustable air cushion in each section to manage end-of-stroke impact. The body length A(SCT) is 249 mm, and the standard TPU seals support an operating temperature range of -20 to +70 °C. The four positions are selected by pressurising section one, section two, or both simultaneously.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 80 / 8 mm |
| Total travel | 88 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) | 80 mm |
| P2 (section 2) | 8 mm |
| P3 (both extended) | 88 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 SCT63X80X8
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×8 | 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 SCT63X80X8 Is Used
Two-Depth Pressing
Uses the 80 mm stroke for a rapid approach and the 8 mm stroke for a controlled final press depth, achieving two distinct pressing positions with one compact actuator.
Diverter Gate Positioning
Shifts a diverter gate between a home position (0 mm), a bypass lane (8 mm), and a main lane (80 mm), with a fourth combined position (88 mm) for a secondary bypass.
Multi-Stop Part Staging
Positions a workpiece at four discrete stations along an 88 mm path for sequential assembly or inspection operations, eliminating the need for multiple single-stroke cylinders.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8 the Right Cylinder?
Choose the SCT63X80X8 when a single actuator must reach two distinct extended positions without the complexity of two separate cylinders and external hard stops. The 8 mm secondary stroke provides a fine offset ideal for shuttling between two closely spaced stations after a longer 80 mm advance. If higher force is needed, stepping up to the 80 mm bore delivers 2513 N of push per section at 0.5 MPa.
For direct replacement, match an AirTAC SCT with a 63 mm bore, 80 mm and 8 mm strokes, PT port thread, and basic mounting. If a section stroke exceeds 300 mm, consider external guides to protect the 20 mm rod from side loads. Note that the cylinder does not hold its position if air pressure is lost; an external rod lock is required for load holding without live pressure.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 8 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 SCT63X80X8 FAQ
This 4-position tandem cylinder stops at 0 mm (fully retracted), 8 mm (secondary stroke only), 80 mm (primary stroke only), and 88 mm (both strokes extended). The positions are discrete and fixed by the two section strokes.
Yes, if your application requires a 63 mm bore with stops at 0, 8, 80, and 88 mm. The SCT integrates both strokes on a single rod line, reducing mounting space and plumbing. Ensure the replacement matches the bore, both strokes, PT1/4 ports, and basic mounting configuration.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCT Multi-Position Cylinders
Request a Quote for Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X80X8
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.