Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 150mm give 4 controllable stop positions across a 250mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 2150 mm
- Total travel250 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S
The SCT80X100X150S is an 80 mm bore, double-acting multi-position cylinder that delivers four distinct rod positions from its tandem piston layout. By pressurising one or both sections, the rod stops precisely at 0 mm (fully retracted), 100 mm, 150 mm, or the total travel of 250 mm, making it ideal for tasks needing three or four fixed mechanical stops without complex servo controls.
Each piston section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at 0.9 MPa, driven through a rigid 25 mm diameter rod. The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors for reliable end-of-stroke or intermediate position sensing. This model uses PT ports and has a body length of 296 mm.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 150 mm |
| Total travel | 250 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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) | 100 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 250 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S Is Used
Multi-Stop Diverting Gate
Controls a diverter gate on a conveyor to four distinct positions for sorting packages to different lanes, using the 0, 100, 150, and 250 mm rod stops.
Two-Depth Pressing Station
Provides two different pressing depths (100 mm and 250 mm) in a single compact assembly, with a retracted and an intermediate 150 mm position for part loading and ejection.
Staged Part Feeding
Advances components in a fixture through a 100 mm primary feed and a 150 mm secondary feed, with sensor confirmation at each stop via the integrated magnet and barrel-mounted switches.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S the Right Cylinder?
Choose the SCT80 tandem cylinder when a single unit must provide multiple fixed stopping points, eliminating the need for two separate cylinders and external hard stops. If your force requirement is lower, the 63 mm bore SCT63 series provides 1559 N of push per section at 0.5 MPa; for higher force, the 100 mm bore offers 3927 N per section. The built-in magnet on this SCT80X100X150S simplifies adding position feedback sensors directly to the tie-rod barrel.
For a direct replacement, match the 80 mm bore, both strokes of 100 mm and 150 mm, PT port thread, and the -S magnet option. With a 100 mm stroke on the first section and 150 mm on the second, ensure the rod is adequately guided if significant side loads are present, especially near the full 250 mm extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 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 SCT80~100 Multi-Position Tandem Cylinder SCT80X100X150S FAQ
This model provides four discrete rod positions: 0 mm (fully retracted), 100 mm (first section extended), 150 mm (second section extended), and 250 mm (both sections extended for total travel).
Yes, it is a direct replacement for a two-cylinder setup that previously achieved 100 mm and 150 mm strokes with a common rod. Ensure the replacement matches the 80 mm bore, PT ports, and requires the -S magnet for sensor mounting.
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