Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 40mm give 4 controllable stop positions across a 90mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 240 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S
The SCT63X50X40S is a double-acting multi-position tandem cylinder that delivers four distinct, repeatable rod stops without the complexity of servo controls. By pressurising the two piston sections independently or together, the rod extends to exactly 0 mm (retracted), 50 mm, 40 mm, or the full combined travel of 90 mm. 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 (-S suffix), allowing standard CMSG, DMSG, or EMSG solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The cylinder features a 20 mm diameter piston rod, M16x1.5 rod thread, and PT1/4 ports. The integrated air cushion is 28 mm long, providing adjustable end-of-stroke deceleration for smooth cycling at speeds between 30 and 800 mm/s.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 40 mm |
| Total travel | 90 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) | 40 mm |
| P3 (both extended) | 90 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 SCT63X50X40S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT63X50X40S Is Used
Two-Stage Diverter Gate
Uses the 50 mm and 90 mm extended positions to route packages to two separate conveyor lanes, with the 40 mm position serving as a third sorting path, all from one compact actuator.
Multi-Depth Pressing
Provides three distinct pressing depths (40 mm, 50 mm, 90 mm) for assembly operations like bearing insertion or riveting, where different components require unique insertion forces and depths.
Sequential Part Staging
Advances a workpiece through three precise positions for a multi-step machining or inspection process, using the 0, 40, and 90 mm stops to align features under different tool heads.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X40S the Right Cylinder?
Select the SCT63X50X40S when your application requires a compact, purely pneumatic method to achieve four fixed stop positions, eliminating the need for two separate cylinders and external hard stops. This tandem design simplifies plumbing and reduces the footprint compared to a dual-cylinder setup with brackets. If the 1559 N push force per section (at 0.5 MPa) is insufficient, consider stepping up to the 80 mm bore SCT80 series, which provides 2513 N per section. For a direct replacement, match the 63 mm bore, both strokes (50 mm and 40 mm), PT port thread, and the integrated magnet (-S).
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 40 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 SCT63X50X40S FAQ
This model provides four distinct, repeatable stop positions because the two strokes are different (50 mm and 40 mm). The reachable rod-end positions are: fully retracted (0 mm), section one extended (50 mm), section two extended (40 mm), and both sections extended for the total travel (90 mm).
Yes, in many cases it can. The SCT63X50X40S combines two strokes on a single rod line, giving you four fixed stops from one compact unit. This eliminates the complex mounting, alignment, and sequential valving required for two independent cylinders. Ensure the per-section force (1559 N push at 0.5 MPa) meets your load requirements, as the force is not doubled.
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 SCT63X50X40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.