Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 150mm give 4 controllable stop positions across a 230mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 180 mm
- Stroke 2150 mm
- Total travel230 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S
The SCT50X80X150S is a double-acting multi-position cylinder that provides four distinct mechanical stops along its 230 mm total travel. By pressurising the first section, the second, or both, the rod extends to exactly 0 mm, 80 mm, 150 mm, or 230 mm, making it a compact alternative to complex servo systems for fixed-position tasks.
Each of the two 50 mm bore sections delivers 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa), driven through a 20 mm diameter hard-chrome rod. The built-in magnet, designated by the -S suffix, allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position feedback. The PT1/4 ports and 21 mm air cushion ensure smooth deceleration at each end of the 80 mm and 150 mm strokes.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 80 / 150 mm |
| Total travel | 230 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) | 150 mm |
| P3 (both extended) | 230 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 SCT50X80X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×80 | 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 SCT50X80X150S Is Used
Four-Position Sorting Gate
Direct packages or parts to four separate conveyor lanes by commanding the rod to 0, 80, 150, or 230 mm. The discrete stops eliminate the need for a servo-driven diverter.
Two-Depth Pressing Station
Perform a shallow 80 mm pre-form stroke and a full 150 mm final press in one cycle, or combine both for a 230 mm total forming depth on a single machine.
Multi-Stop Part Feeding
Advance components to three distinct workstations along a linear slide. The 80 mm and 150 mm stops position parts for drilling, tapping, and inspection without re-fixturing.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X80X150S the Right Cylinder?
Choose the SCT50X80X150S when your application needs four fixed, repeatable stop positions without the cost and programming of a servo drive. It replaces two separate cylinders or an SC unit with external hard stops, reducing part count and alignment complexity. If your force requirement is lower, stepping down to a 40 mm bore provides 628 N of push per section; for higher loads, the 63 mm bore offers 1559 N.
For direct replacement, match the 50 mm bore, both the 80 mm and 150 mm section strokes, PT port thread, and the -S magnet option. The basic mounting style means it ships without brackets, ready to accept any accessory from the SCT set. With the 150 mm stroke section extended, ensure the 20 mm rod is adequately supported if significant side loads are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 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 SCT50X80X150S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 80 mm (first section extended), 150 mm (second section extended), and 230 mm (both sections extended, total travel). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
No. Like all standard pneumatic cylinders, the SCT50X80X150S will drift or drop if pressure is removed from a section. If the load must be mechanically locked at an intermediate stop without live air, you must add an external rod brake or a pilot-operated check valve.
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