Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H
The SCT80X100X50H is a tandem multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 50 mm, 100 mm, and the total extended travel of 150 mm. Each 80 mm bore section delivers 2513 N of push force at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa, making it a robust actuator for sequenced, mid-stroke stopping tasks.
Equipped with the 'H' suffix Viton (FKM) seals, this model is rated for high-temperature operation from 0 to +150 °C, well beyond the standard -20 to +70 °C range. The cylinder features a 25 mm diameter piston rod, PT3/8 ports, and an integrated 28 mm air cushion in each section for smooth deceleration at every stop position.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 50 mm |
| P3 (both extended) | 150 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 SCT80X100X50H
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT80X100X50H Is Used
Two-Stage Part Diverting
Uses the 50 mm and 100 mm stops to direct parts to three separate conveyor lanes from a single infeed point, sequenced purely by pneumatic valves.
High-Temp Glue Dispensing
The Viton seals allow this cylinder to operate reliably in a hot-melt adhesive station, moving a dispensing head to a 50 mm pre-dispense position and a 100 mm application point.
Sequential Clamping & Stamping
Provides a 50 mm low-force clamp stroke followed by a 100 mm high-force stamping stroke, all from one compact tandem body, simplifying the machine's pneumatic circuit.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X50H the Right Cylinder?
Select this 4-position SCT when a process requires a compact, purely pneumatic solution for three distinct extended positions without the complexity of two separate cylinders and external stops. The 100 mm and 50 mm stroke combination is ideal for a two-step feed-and-clamp or a diverting gate with unequal travel. If higher force is needed, stepping up to the SCT100 bore provides 3927 N of push per section at 0.5 MPa.
For a direct replacement, match the 80 mm bore, the exact 100 mm and 50 mm strokes, PT port thread, and the Viton seal specification. Note that with the longer 100 mm stroke section, ensure the guided load is supported to prevent side-loading and rod bending, especially when the rod is fully extended to the combined 150 mm position.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 50 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 SCT80X100X50H FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (section 2 extended), 100 mm (section 1 extended), and 150 mm (both sections extended). It does not offer infinitely variable positioning.
You must match the 80 mm bore, both the 100 mm and 50 mm strokes, the PT port thread, and the 'H' Viton seal designation. The replacement must be an AirTAC SCT tandem cylinder; a standard single-rod SC cylinder cannot replicate the four discrete positions.
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