Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 100mm give 4 controllable stop positions across a 400mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1300 mm
- Stroke 2100 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100
The SCT80X300X100 is a tandem multi-position pneumatic cylinder that delivers four fixed rod positions from a single tie-rod body: 0 mm (fully retracted), 100 mm, 300 mm, and the combined total travel of 400 mm. Each of the two piston sections generates a push force of 2513 N at 0.5 MPa, with the 25 mm diameter rod providing robust guidance for the 300 mm primary stroke section.
Built with a 28 mm adjustable air cushion at each end and a body length A(SCT) of 296 mm, this double-acting cylinder handles operating pressures from 0.15 to 1.0 MPa. The standard PT3/8 ports and M20x1.5 rod thread suit general industrial air prep, and the TPU seals offer reliable service from -20 to +70 °C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 300 / 100 mm |
| Total travel | 400 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) | 300 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 400 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 SCT80X300X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×300 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT80X300X100 Is Used
Two-Stop Part Feeding
Advances a part 300 mm to a primary workstation, then extends the final 100 mm to a secondary eject position, all from one compact cylinder with fixed mechanical stops.
Dual-Depth Pressing
Provides a 100 mm low-force pre-press stroke followed by a 300 mm deep-forming stroke, with the four discrete positions ensuring consistent, repeatable tooling depths.
Multi-Lane Diverting
Positions a diverter gate at 0 mm (lane 1), 100 mm (lane 2), 300 mm (lane 3), or 400 mm (lane 4) using simple 5/3 valve logic, eliminating servo complexity.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X100 the Right Cylinder?
Choose the SCT80X300X100 when an application needs a long 300 mm advance, a shorter 100 mm intermediate position, and a full 400 mm extension—all without the complexity of two separate cylinders and external hard stops. For higher force, stepping up to the 100 mm bore SCT100 provides 3927 N of push per section at 0.5 MPa; for a lighter, more compact solution, the 63 mm bore SCT63 delivers 1559 N.
A direct replacement must match the 80 mm bore, both the 300 mm and 100 mm strokes, PT3/8 ports, and the basic mounting configuration. Because the 300 mm section stroke is significant, ensure the rod is guided externally if the load applies a side force or the mounting is not perfectly aligned, to prevent rod bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 300 + 100 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 SCT80X300X100 FAQ
This cylinder provides four discrete, repeatable rod positions: 0 mm (fully retracted), 100 mm (second section only), 300 mm (first section only), and 400 mm (both sections extended). The stops are fixed by the two section strokes and are not infinitely adjustable.
Yes, if your sequence requires a 100 mm and a 300 mm stroke from the same rod line. The SCT tandem design eliminates the need to align and synchronize two individual cylinders. Ensure the replacement matches the 80 mm bore, 300/100 mm strokes, PT3/8 ports, and your required mounting style.
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