Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 150mm give 3 controllable stop positions across a 300mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1150 mm
- Stroke 2150 mm
- Total travel300 mm
- Positions3 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S
The SCT80X150X150S is an 80 mm bore multi-position tandem cylinder that delivers three discrete rod positions: 0 mm (fully retracted), 150 mm (first section extended), and 300 mm (both sections extended for total travel). Each piston section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa, driven through a rigid 25 mm diameter rod.
Built with a 28 mm adjustable air cushion at each end and a tie-rod construction with a body length A of 296 mm, this unit is designed for repeatable stopping accuracy in sorting or diverting tasks. The integrated magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for reliable end-of-stroke and mid-position sensing without external brackets.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 150 / 150 mm |
| Total travel | 300 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 150 mm |
| P2 (both extended) | 300 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 SCT80X150X150S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×150 | 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 SCT80X150X150S Is Used
3-Position Diverter Gate
Stops at 0, 150, and 300 mm to route packages or parts to three separate conveyor lanes. The built-in magnet confirms each position, ensuring the gate is clear before the next item arrives.
Two-Stage Part Feeding
Extends to 150 mm for a pre-feed stop, then to 300 mm for final placement. The 2513 N push force at 0.5 MPa handles heavy pallets or steel components without stalling.
Multi-Depth Pressing or Stamping
Provides two distinct pressing depths (150 mm and 300 mm) from one compact cylinder. The rigid 25 mm rod and tie-rod construction maintain alignment under the 4523 N peak thrust at 0.9 MPa.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150S the Right Cylinder?
Choose the SCT tandem cylinder when a single actuator must stop at three fixed locations without the complexity of two separate cylinders and external hard stops. The three-position design (0, 150, 300 mm) simplifies plumbing and mounting for two-stage feeding or lane diverting. If your force requirement is lower, consider stepping down to the 63 mm bore, which provides 1559 N of push per section at 0.5 MPa; for higher thrust, the 100 mm bore delivers 3927 N per section at the same pressure.
For direct replacement, match the 80 mm bore, both 150 mm section strokes, PT port thread, basic mounting, and the -S magnet option. Note that with a combined stroke of 300 mm, side-loading on the 25 mm rod becomes a design factor—always guide the load externally or keep the connection concentric to prevent rod bending and premature seal wear.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 150 + 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 SCT80X150X150S FAQ
It provides three distinct mechanical stops: 0 mm (fully retracted), 150 mm (first section extended), and 300 mm (both sections extended, which is the total of the two 150 mm strokes). Because both section strokes are equal, the 150 mm position serves as the single mid-stop.
Yes, in applications where you need a fixed mid-position at 150 mm and full extension at 300 mm. A single SCT80X150X150S eliminates the need to synchronize two cylinders and reduces mounting hardware. Ensure the replacement matches the 80 mm bore, both 150 mm strokes, PT ports, and the -S magnet option for sensor compatibility.
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