Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 35mm give 4 controllable stop positions across a 85mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 235 mm
- Total travel85 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S
The AirTAC SCT63X50X35S is a double-acting, multi-position tandem cylinder that delivers four distinct, repeatable stop positions along its stroke: 0 mm (fully retracted), 50 mm, 35 mm, and the total travel of 85 mm. This is achieved by pressurizing either of its two piston sections independently or simultaneously, making it a compact solution for applications requiring multiple fixed end-points without complex controls.
Each actuated section provides a push force of 1559 N at 0.5 MPa, with a 20 mm diameter rod and an M16x1.5 rod thread for robust connection. The cylinder features a 28 mm adjustable air cushion for smooth end-of-stroke deceleration, and the built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable position feedback.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 35 mm |
| Total travel | 85 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) | 50 mm |
| P2 (section 2) | 35 mm |
| P3 (both extended) | 85 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 SCT63X50X35S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT63X50X35S Is Used
Two-Stage Sorting Gate
Diverts parts to three different conveyor lanes using the 0, 35, and 85 mm positions, with the 50 mm position serving as a mid-point staging area for inspection.
Multi-Depth Pressing
Performs a light pre-press at the 35 mm stroke, a full-depth press at 85 mm, and uses the 50 mm position for a secondary forming operation with a different tool.
Sequential Clamping
Clamps a workpiece at 35 mm for a drilling operation, then advances to 85 mm total travel for a tapping cycle, with the 50 mm stop acting as a safe retract position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X35S the Right Cylinder?
Select the SCT63X50X35S when your process needs four specific mechanical stops from a single actuator, eliminating the cost and complexity of two separate cylinders and their valving. For higher force requirements in the same bore class, stepping up to an SCT80 model provides 2513 N of push per section at 0.5 MPa. As a direct replacement, match the 63 mm bore, both 50 mm and 35 mm strokes, PT port thread, basic mounting, and the -S magnet option. For strokes over 300 mm, consider external guides to manage side loads and prevent rod bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 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 SCT63X50X35S FAQ
This cylinder provides four discrete mechanical stops: 0 mm (home), 50 mm (section 1 extended), 35 mm (section 2 extended), and 85 mm (both sections extended). The position is selected by pressurizing the corresponding cylinder section.
Yes, it is designed for that purpose. The SCT63X50X35S integrates two strokes into one tie-rod body. To be a direct replacement, the substitute must match the 63 mm bore, the 50 mm and 35 mm strokes, PT ports, and include the magnet option (-S) for sensor compatibility.
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 SCT63X50X35S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.