Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 50mm give 4 controllable stop positions across a 125mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 175 mm
- Stroke 250 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S
The SCT63X75X50S creates four fixed rod positions—0 mm, 75 mm, 50 mm, and 125 mm total travel—by sequencing pressure to its two 63 mm bore sections. Each actuated piston delivers 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, driven through a rigid 20 mm diameter rod.
A built-in magnet on the barrel lets you clip on CMSG or DMSG sensors for contactless end-of-stroke or mid-position confirmation without extra brackets. The tie-rod body measures 249 mm in base length, with 28 mm of adjustable air cushion in each section to soften stops at all four positions.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 75 / 50 mm |
| Total travel | 125 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) | 75 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 125 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 SCT63X75X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT63X75X50S Is Used
Two-Stage Diverter Gate
Use the four positions (0, 50, 75, 125 mm) to route packages to three separate conveyor lanes from one infeed, with a safe home position.
Multi-Depth Pressing
Achieve two different insertion depths in assembly—a partial press at 50 mm and a full seat at 125 mm—controlled purely by pneumatic valve sequencing.
Sequential Clamping Station
Clamp a part at 75 mm for drilling, retract to 50 mm for chip clearing, then fully retract to 0 mm for part ejection, all with sensor feedback via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X75X50S the Right Cylinder?
Choose the SCT63X75X50S when your process needs four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 75 mm and 50 mm strokes give you an asymmetrical position set ideal for two-step feeding or sorting. If you need more force, stepping up to the 80 mm bore provides 2513 N of push per section at 0.5 MPa; for a lighter, faster load, the 50 mm bore delivers 982 N.
For a direct replacement, match the 63 mm bore, both 75 mm and 50 mm section strokes, PT port thread, basic mounting, and the -S magnet option. When either stroke exceeds 300 mm, add external guides or a rod support to prevent side-load deflection on the 20 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 75 + 50 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 SCT63X75X50S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 75 mm (section one extended), 50 mm (section two extended), and 125 mm (both sections extended). These are fixed by the two stroke lengths and cannot be infinitely varied.
Yes, in applications requiring two fixed intermediate stops. The SCT63X75X50S uses one rod line and two piston sections, saving space and eliminating the need to synchronize two separate cylinders. Ensure the replacement matches the 63 mm bore, 75 mm and 50 mm strokes, PT ports, and the -S magnet option.
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 SCT63X75X50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.