Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 20mm give 4 controllable stop positions across a 80mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 160 mm
- Stroke 220 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20
The SCT80X60X20 tandem cylinder delivers four fixed rod positions—0 mm, 60 mm, 20 mm, and the full 80 mm extension—by pressurising its two piston sections independently. Each section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at the 0.9 MPa maximum operating pressure, driven through a rigid 25 mm diameter rod.
Designed with a 28 mm adjustable air cushion at each end, this double-acting unit decelerates loads smoothly without external shock absorbers. The tie-rod construction and PT3/8 ports make it a robust choice for multi-stop material handling where two distinct intermediate positions are required from a single compact actuator.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 60 / 20 mm |
| Total travel | 80 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) | 60 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 80 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 SCT80X60X20
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT80X60X20 Is Used
Two-Way Part Diverting
Use the 20 mm and 60 mm stops to position a diverter gate for routing parts to two separate conveyor lanes from a single feed point.
Sequential Clamping
Apply a light clamp at the 20 mm position for alignment, then advance to the full 80 mm stroke for final high-force clamping on an assembly fixture.
Dual-Depth Insertion
Drive a tool to a 60 mm pre-insertion depth, pause for a secondary process, then complete the insertion at the 80 mm total travel position.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X20 the Right Cylinder?
Select the SCT80X60X20 when a process needs two intermediate stop points without the complexity of dual cylinders and external hard stops. The 60 mm and 20 mm strokes create four distinct positions, ideal for sorting or diverting. If lower force is acceptable, stepping down to a 63 mm bore reduces push force to 1559 N per section at 0.5 MPa. For replacement, match the 80 mm bore, both 60 mm and 20 mm strokes, PT port thread, and basic mounting configuration. With a combined stroke of 80 mm, rod deflection is minimal, but always align the load axially to prevent side-load induced seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 20 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 SCT80X60X20 FAQ
This model provides four discrete positions: fully retracted (0 mm), first section extended (60 mm), second section extended (20 mm), and both sections extended for the total travel (80 mm).
Yes, in applications requiring two fixed intermediate stops. It replaces two cylinders and their mounting hardware with a single tandem body, provided the strokes match 60 mm and 20 mm and the port thread is PT. The force per actuated section remains 2513 N at 0.5 MPa, not a combined force.
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