Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 50mm give 4 controllable stop positions across a 130mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 180 mm
- Stroke 250 mm
- Total travel130 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S
The AirTAC SCT50X80X50S is a tandem multi-position cylinder that delivers four distinct, repeatable rod positions from a single compact unit. By pressurising its two 50 mm bore sections independently or together, the rod stops precisely at 0 mm (fully retracted), 80 mm (section one extended), 50 mm (section two extended), and 130 mm (both sections extended). Each actuated section provides 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, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position sensing. The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end ensure smooth deceleration across the full 30-800 mm/s speed range. With a body length of 243 mm, it integrates easily where space is limited, offering a genuine AirTAC solution for multi-stop linear tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 80 / 50 mm |
| Total travel | 130 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) | 80 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 130 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 SCT50X80X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×80 | 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 SCT50X80X50S Is Used
Two-Stage Sorting Gate
Operate a diverter gate with a retracted home position, a partial-open position at 50 mm for one lane, a mid-open position at 80 mm for a second lane, and a fully-open position at 130 mm for a third lane, all from one cylinder.
Multi-Depth Pressing
Control a pressing tool to three distinct depths. The 50 mm and 80 mm strokes provide two working depths, while the combined 130 mm stroke offers a third, deeper press, with the 0 mm position serving as the safe retracted state.
Sequential Part Feeding
Advance a part feeder through a four-step sequence: retract to 0 mm to receive a part, extend to 50 mm for a pre-stage, move to 80 mm for an inspection stop, and fully extend to 130 mm to load the part into the next machine station.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X50S the Right Cylinder?
Select the SCT50X80X50S when your application requires three or four fixed linear positions without the complexity of two separate cylinders and external hard stops. This tandem configuration is mechanically simpler and more compact than linking two standard SC cylinders. If your force requirement is lower, consider stepping down to the SCT40 series, which provides 628 N of push per section at 0.5 MPa. For a direct replacement, match the 50 mm bore, both 80 mm and 50 mm strokes, PT port thread, basic mounting, and the -S magnet option to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 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 SCT50X80X50S FAQ
The four discrete rod positions are 0 mm (fully retracted), 80 mm (first section extended), 50 mm (second section extended), and 130 mm (both sections extended for total travel). These are fixed mechanical stops, not programmable positions.
It is a direct replacement for another AirTAC SCT50X80X50S with the same bore, 80 mm and 50 mm strokes, PT ports, basic mounting, and built-in magnet. It is not dimensionally interchangeable with ISO 15552 cylinders or two separate standard cylinders.
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