Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35 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 SCT63X35X35
The SCT63X35X35 is a double-acting tandem cylinder that delivers three fixed rod positions: fully retracted (0 mm), 35 mm, and the combined 70 mm total travel. Each piston section generates a push force of 1559 N at 0.5 MPa, scaling to 2805 N at the maximum operating pressure of 0.9 MPa, giving precise, repeatable stopping power for short-throw indexing tasks.
Built on a rigid tie-rod design with a 20 mm diameter rod and M16x1.5 thread, this 63 mm bore unit includes an adjustable air cushion (28 mm length) at each end to decelerate the load smoothly. The body length A(SCT) is 249 mm, and the standard PT1/4 ports keep it compatible with common pneumatic circuitry.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35 |
|---|---|
| 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 SCT63X35X35
| 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 SCT63X35X35 Is Used
Two-Way Diverter Gate
Use the 35 mm and 70 mm positions to align a chute or deflector with two separate conveyor lanes, routing parts by type or destination with a single compact cylinder.
Multi-Level Part Staging
Stop a pusher arm at 35 mm for a partial advance and 70 mm for full insertion, allowing one SCT unit to load components into a fixture at two different depths.
Dual-Pressure Clamping
Actuate a clamp to a 35 mm pre-clamp position for alignment, then drive to the full 70 mm stroke for final holding force, sequencing both actions from one cylinder body.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X35X35 the Right Cylinder?
Choose the SCT63X35X35 when a single actuator must hit two distinct extended positions without the complexity of dual cylinders and external hard stops. If the 1559 N push per section at 0.5 MPa is more force than your application requires, stepping down to the 50 mm bore SCT50X35X35 reduces per-section push to 982 N at the same pressure, saving air and space. For a heavier load, the 80 mm bore SCT80X35X35 provides 2513 N per section.
When replacing an existing unit, match the 63 mm bore, both 35 mm strokes, PT1/4 ports, and the basic mounting configuration. Since both strokes are under 300 mm, rod bending under side load is typically not a concern, but always align the load axially with the rod to maximize 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 SCT63X35X35 FAQ
It provides three discrete mechanical stops because both piston sections have an identical 35 mm stroke. The rod positions are 0 mm (fully retracted), 35 mm (first section extended), and 70 mm (both sections extended, total travel).
Yes, if your sequence requires stopping at 35 mm and 70 mm. The SCT integrates both strokes on a single common rod, eliminating the need to synchronize two separate cylinders and their mountings. Ensure the replacement matches the 63 mm bore, PT1/4 ports, and basic mount.
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 SCT63X35X35
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.