Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 150mm give 4 controllable stop positions across a 175mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 125 mm
- Stroke 2150 mm
- Total travel175 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S
The SCT50X25X150S is a double-acting, multi-position tandem cylinder that delivers four discrete rod stops: 0 mm (fully retracted), 25 mm, 150 mm, and the combined total travel of 175 mm. By pressurising either piston section individually or both together, you can reliably index between these fixed positions without external hard stops. Each 50 mm bore section generates a push force of 982 N at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), allowing easy attachment of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the tie-rod barrel for end-of-stroke or mid-position confirmation. The 20 mm diameter piston rod and PT1/4 ports are standard for the 50 mm bore, and the adjustable air cushion (21 mm length) decelerates the load smoothly at each end of the 175 mm total stroke. The body length A(SCT) is 243 mm, providing a compact tandem package.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 25 / 150 mm |
| Total travel | 175 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) | 25 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 175 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 SCT50X25X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×25 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT50X25X150S Is Used
Two-Depth Part Stamping
Use the 25 mm stroke for a light pre-form contact and the 150 mm stroke for the full forming depth. The four positions (0, 25, 150, 175 mm) provide a safe retract, a setup position, and two working depths.
3-Way Diverter Gate
Control a chute or conveyor gate with three distinct flow paths. Retract to 0 mm for path A, extend to 25 mm for path B, and extend fully to 175 mm for path C, with sensor feedback at each stop via the built-in magnet.
Multi-Stop Part Staging
Stage components on a linear transfer line. The cylinder advances a stop pin to 25 mm to hold the first part, then to 150 mm for the second, and fully retracts to 0 mm to release both, creating a sequenced material flow.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X25X150S the Right Cylinder?
Choose the SCT50X25X150S when your application needs four fixed positions with a short initial advance and a longer secondary stroke, such as a two-depth pressing or a diverting gate. The tandem design is more compact and cost-effective than mounting two separate cylinders back-to-back with external couplings. If the 982 N per-section force at 0.5 MPa is marginal, stepping up to a 63 mm bore provides 1559 N per section at the same pressure. For replacement, match the 50 mm bore, both the 25 mm and 150 mm strokes, PT port thread, and the -S magnet option; this cylinder is a direct form-fit replacement only for an identical AirTAC SCT50X25X150S.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 150 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 SCT50X25X150S FAQ
This tandem cylinder provides four distinct rod positions: 0 mm (fully retracted), 25 mm (first section extended), 150 mm (second section extended), and 175 mm (both sections extended, which is the total of the two strokes). The positions are fixed by the stroke lengths and are not infinitely adjustable.
The SCT tandem cylinder integrates two piston sections on a single common rod and body, making it more compact and eliminating the need for external alignment brackets and couplings. It provides four discrete stops from just two air circuits, simplifying valving and control compared to two independent cylinders. The built-in magnet also centralises sensor mounting on one barrel.
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 SCT50X25X150S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.