Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 100mm give 4 controllable stop positions across a 180mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 180 mm
- Stroke 2100 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S
The SCT80X80X100S is a tie-rod, multi-position tandem cylinder that provides four fixed rod positions: fully retracted (0 mm), 80 mm, 100 mm, and the combined total travel of 180 mm. Each of the two piston sections generates 2513 N of push force at 0.5 MPa, scaling up to a robust 4523 N at the maximum operating pressure of 0.9 MPa, driven through a 25 mm diameter piston rod.
This model includes a built-in magnet (-S suffix), allowing for direct mounting of CMSG, DMSG, or EMSG sensors on the barrel for non-contact position feedback. The cylinder body has a total length of 296 mm (A dimension) and features an adjustable pneumatic cushion of 28 mm on each end to manage deceleration. Its PT3/8 ports and standard TPU seals are rated for an operating temperature range of -20 to +70°C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 80 / 100 mm |
| Total travel | 180 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) | 80 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 180 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 SCT80X80X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×80 | 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 SCT80X80X100S Is Used
Multi-Stop Sorting Gate
Actuates a diverter gate on a conveyor to four distinct positions, routing packages to 0 mm (lane 1), 80 mm (lane 2), 100 mm (lane 3), or 180 mm (lane 4) based on barcode data.
Two-Depth Pressing Station
Provides a primary pressing depth at the 80 mm stroke and a secondary, deeper forming depth at the 180 mm total travel, with a precise intermediate retract position at 100 mm for part ejection.
Sequential Clamping Fixture
Clamps a workpiece with the first 80 mm stroke, then extends an additional 100 mm to engage a secondary locking pin, using the 100 mm intermediate position for a safe, unclamped state.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X80X100S the Right Cylinder?
Selecting a multi-position cylinder like the SCT80X80X100S replaces the complexity and cost of mounting two separate standard cylinders with external stops. This integrated tandem design simplifies plumbing and guarantees the precise 80 mm, 100 mm, and 180 mm stop locations are fixed by the cylinder's internal mechanics. If a higher per-section force is required, stepping up to the 100 mm bore SCT100 series provides 3927 N of push at 0.5 MPa. For a direct replacement, ensure the new unit matches the 80 mm bore, both the 80 mm and 100 mm strokes, PT port thread, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 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 SCT80X80X100S FAQ
This tandem cylinder has four discrete, fixed stop positions: 0 mm (fully retracted), 80 mm (section 1 extended), 100 mm (section 2 extended), and 180 mm (both sections extended). The 80 mm and 100 mm positions are achieved by pressurizing only one section at a time.
No, like all standard pneumatic cylinders, the SCT80X80X100S will not hold its position if air pressure is lost or exhausted. The piston can drift or drop under load. If a load must be mechanically locked at any of the four positions without live pressure, an external rod brake or a pilot-operated check valve must be integrated into the circuit.
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