Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 35mm and 35mm give 3 controllable stop positions across a 70mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 135 mm
- Stroke 235 mm
- Total travel70 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S
The SCT63X35X35S is a double-acting multi-position cylinder that delivers three precise mechanical stops—0 mm, 35 mm, and 70 mm total travel—by pressurising two tandem piston sections on a common 20 mm rod. Each section generates approximately 1559 N of push force at 0.5 MPa (2182 N at 0.7 MPa), giving you repeatable positioning without complex servo controls.
This model includes a built-in -S magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The PT1/4 ports and 28 mm adjustable air cushion at each end help manage end-of-stroke impact. Its body length A(SCT) is 249 mm, making it a compact choice for sorting gates or diverters where three fixed positions are needed.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 35 / 35 mm |
| Total travel | 70 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 35 mm |
| P2 (both extended) | 70 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 SCT63X35X35S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×35 | Stroke 1 (section 1) in mm. |
| ×35 | 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 SCT63X35X35S Is Used
3-Position Diverter Gate
Use the three distinct stops (0, 35, 70 mm) to route packages or parts to two different lanes from a central conveyor, with the fully retracted position acting as a third bypass lane.
Two-Depth Pressing Station
Actuate one section for a 35 mm pre-compression step, then both sections for the full 70 mm final press stroke. The discrete stops ensure consistent part dimensions batch after batch.
Multi-Stop Assembly Fixture
Integrate the SCT into a fixture to present a component at a 35 mm loading height and a 70 mm joining height. The built-in magnet provides sensor confirmation at each position for error-proofing.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35S the Right Cylinder?
Choose the SCT63X35X35S when your application needs three fixed, repeatable stops without the cost and complexity of two separate cylinders and external hard stops. The 63 mm bore provides a balanced force class for medium-duty tasks; if you need more thrust, stepping up to the 80 mm bore delivers 2513 N per section at 0.5 MPa, while the 50 mm bore offers 982 N for lighter loads. For replacement, match the bore (63), both strokes (35/35), PT port thread, and the -S magnet option. Since the strokes are short, rod bending under side load is unlikely, but always align the load axially with the rod to maximise seal life.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 35 + 35 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 SCT63X35X35S FAQ
This model provides three discrete mechanical stop positions: 0 mm (fully retracted), 35 mm (section one extended), and 70 mm (both sections extended). Because the two 35 mm strokes are equal, the intermediate 35 mm position is shared, resulting in three distinct stops.
Yes, if your sequence requires only the fixed 0, 35, and 70 mm positions. The SCT replaces two separate cylinders and their mounting hardware with a single tandem unit, simplifying air plumbing and eliminating the need to synchronise two independent actuators. Ensure the per-section force of 1559 N at 0.5 MPa meets your load requirements.
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 SCT63X35X35S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.