Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 20mm give 4 controllable stop positions across a 120mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1100 mm
- Stroke 220 mm
- Total travel120 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S
The SCT63X100X20S is a tandem multi-position cylinder that delivers four distinct rod stopping points—0 mm, 100 mm, 20 mm, and a total travel of 120 mm—by pressurising its two piston sections independently or together. Each 63 mm bore section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at 0.9 MPa, making it suitable for tasks requiring two different short extension lengths from a single compact unit.
This model features a built-in magnet, allowing CMSG, DMSG, or EMSG solid-state sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke or intermediate position sensing. The rod diameter is 20 mm with an M16x1.5 male thread, and the body length A(SCT) measures 249 mm. It operates on filtered air with an adjustable pneumatic cushion of 28 mm at each end to manage deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 100 / 20 mm |
| Total travel | 120 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) | 100 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 120 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 SCT63X100X20S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT63X100X20S Is Used
Two-Stop Diverter Gate
Positions a diverter gate at a main 100 mm open position and a secondary 20 mm bypass position, with the magnet confirming arrival at each stop for the control system.
Dual-Depth Pressing
Executes a primary 100 mm press stroke followed by a precise 20 mm secondary forming or coining stroke, using sensor feedback to sequence the two pressure stages.
Multi-Level Part Staging
Stages parts at two different heights (100 mm and 20 mm) on a conveyor line, with the integrated magnet enabling non-contact position verification at each level.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X20S the Right Cylinder?
Choose the SCT63X100X20S when your process needs two separate, fixed extension lengths—such as a 100 mm primary advance and a 20 mm secondary positioning move—without the complexity of two individual cylinders and their mounting hardware. If the 1559 N push force per section at 0.5 MPa is insufficient, stepping up to the SCT80 bore provides 2513 N per section; if it exceeds your requirement, the SCT50 bore offers 982 N.
For a direct replacement, match the 63 mm bore, both the 100 mm and 20 mm strokes, the PT port thread, and the built-in magnet (-S suffix). This basic mounting model requires the cylinder body to be supported by the application structure. Note that the 100 mm stroke section is within standard limits, but for any application involving a side load on the extended 20 mm rod, ensure external guides are used to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 20 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 SCT63X100X20S FAQ
This tandem cylinder provides four discrete mechanical stops: fully retracted (0 mm), the first section extended (100 mm), the second section extended (20 mm), and both sections extended for the total travel of 120 mm. The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, the SCT63X100X20S can replace two individual SC cylinders in applications that require only these specific, fixed extension lengths. It simplifies mounting, reduces air plumbing, and ensures the two strokes are always on the same axial centreline. The replacement must match the 63 mm bore, both strokes, PT ports, and the -S magnet option.
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 SCT63X100X20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.