Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 35mm and 65mm give 4 controllable stop positions across a 100mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 135 mm
- Stroke 265 mm
- Total travel100 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S
The SCT63X35X65S is a double-acting multi-position tandem cylinder that delivers four distinct, repeatable rod positions: 0 mm (fully retracted), 35 mm, 65 mm, and 100 mm total travel. By pressurising the two piston sections independently or together, you achieve fixed mechanical stops without the cost of a servo system. Each 63 mm bore section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for reliable end-of-stroke or mid-position sensing. It uses a 20 mm diameter piston rod with an M16x1.5 thread, PT1/4 ports, and a 28 mm adjustable air cushion for smooth deceleration. The body length A(SCT) is 249 mm, making it a compact solution for multi-stop sorting or diverting tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 35 / 65 mm |
| Total travel | 100 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) | 35 mm |
| P2 (section 2) | 65 mm |
| P3 (both extended) | 100 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 SCT63X35X65S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×35 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT63X35X65S Is Used
Two-Way Diverter Gate
Use the four positions to direct product flow to two separate lanes, with a neutral retracted home position. The 35 mm and 65 mm strokes precisely align the gate with each chute.
Multi-Depth Pressing
Achieve two distinct pressing depths (35 mm and 100 mm) in an assembly or forming station. The discrete stops ensure consistent part dimensions without manual adjustment.
Staged Part Ejection
Eject parts to a first reject bin at 35 mm travel and a second bin at 100 mm total travel, based on an in-line quality check signal. The magnet confirms the cylinder reached the correct stage.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X65S the Right Cylinder?
Choose the SCT when your application requires two or more fixed stopping points along a single linear axis, replacing complex setups with two separate cylinders and external hard stops. This 63 mm bore provides a balanced force profile; if you need higher thrust, stepping up to the SCT80 series offers 2513 N of push force per section at 0.5 MPa. For a lower force envelope, the 50 mm bore delivers 982 N. As a direct replacement, match the 63 mm bore, both strokes (35 mm and 65 mm), PT port thread, and the built-in magnet (-S suffix) to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 35 + 65 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 SCT63X35X65S FAQ
This tandem cylinder provides 4 discrete rod positions: 0 mm (retracted), 35 mm (section one extended), 65 mm (section two extended), and 100 mm (both sections extended). The positions are fixed by the two different stroke lengths.
No, an SCT cylinder does not lock or hold its position if air pressure is exhausted. The piston will drift. If a load must be mechanically held at the 35 mm or 65 mm stop without live pressure, you must add an external rod brake or a pilot-operated check valve.
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 SCT63X35X65S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.