Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 25mm give 4 controllable stop positions across a 65mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 140 mm
- Stroke 225 mm
- Total travel65 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25
The SCT50X40X25 is a double-acting tandem cylinder that delivers four fixed rod positions—0 mm, 40 mm, 25 mm, and 65 mm total travel—from two independently controlled piston sections on a single 20 mm rod. Each section generates 982 N of push force at 0.5 MPa, rising to 1767 N at the 0.9 MPa maximum operating pressure, making it a compact alternative to mounting two separate actuators for short, sequenced stops.
With a 21 mm adjustable air cushion at each end and a rigid tie-rod body measuring 243 mm in length A(SCT), the unit handles frequent cycling in sorting and diverting tasks. The PT1/4 ports and M16x1.5 rod thread match standard AirTAC SC-series tooling, and the TPU seals cover a -20 to +70 °C working range.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 40 / 25 mm |
| Total travel | 65 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, 21 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) | 40 mm |
| P2 (section 2) | 25 mm |
| P3 (both extended) | 65 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X40X25
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×25 | 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 SCT50X40X25 Is Used
Two-Stage Diverter Gate
The 40 mm and 25 mm strokes extend a flipper gate to two different conveyor lanes, routing packages by size without needing two separate cylinders and brackets.
Sequential Part Ejection
Use the 25 mm stroke to push a small part clear of a nest, then the 40 mm stroke to eject a larger component in the next cycle, all from one compact tandem unit.
Dual-Depth Pressing
The four positions (0, 25, 40, 65 mm) let a press tool stop at a shallow pre-form depth and a full-depth bottom, improving cycle consistency in light forming operations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X40X25 the Right Cylinder?
Choose the SCT50X40X25 when your process needs two distinct intermediate positions without the alignment hassle of external hard stops. For lighter loads, stepping down to a 40 mm bore drops the per-section push to 628 N at 0.5 MPa; for heavier work, the 63 mm bore provides 1559 N per section. This model is a direct replacement only for an identical AirTAC SCT50X40X25 with PT threads and basic mounting—verify both stroke sections match, as a single-stroke SC cylinder cannot replicate the four-stop sequence.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 40 + 25 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 SCT50X40X25 FAQ
The rod reaches four discrete stops: fully retracted (0 mm), first section extended (40 mm), second section extended (25 mm), and both sections extended for the total travel of 65 mm. These are fixed mechanical positions, not infinitely adjustable.
Yes, if your application requires only the 40 mm and 25 mm strokes in sequence. The SCT provides the same 982 N push per section at 0.5 MPa as a standard SC50, but you must ensure the porting and mounting match—this basic model uses PT1/4 threads and has no built-in magnet or flange brackets.
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 SCT50X40X25
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.