Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 40mm give 4 controllable stop positions across a 100mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 160 mm
- Stroke 240 mm
- Total travel100 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40
The SCT80X60X40 is an 80 mm bore tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 60 mm, 40 mm, and 100 mm (total travel). By pressurising the two piston sections independently or together, you get three intermediate stopping points without external hard stops. Each section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at 0.9 MPa.
This tie-rod cylinder uses a 25 mm diameter rod with PT3/8 ports and an M20x1.5 rod thread. The integrated air cushion is 28 mm long on each end, and the body length A(SCT) is 296 mm. It is a double-acting unit built for filtered air at 0.15–1.0 MPa, operating from -20 to +70 °C with standard TPU seals.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 60 / 40 mm |
| Total travel | 100 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) | 40 mm |
| P3 (both extended) | 100 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 SCT80X60X40
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT80X60X40 Is Used
Two-Way Diverter Gate
The 60 mm and 40 mm strokes position a chute or flap to three distinct angles for routing packages to different conveyor lanes.
Staggered Part Ejection
Use the 40 mm stop for a partial push and the 100 mm full travel for a complete ejection stroke in an assembly cell.
Two-Depth Clamping Fixture
The rod advances to 40 mm for a light clamp and 100 mm for a secondary deep-set clamp on a variable-thickness workpiece.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X40 the Right Cylinder?
Choose the SCT when a single actuator must hit multiple fixed locations, eliminating the cost and complexity of two separate cylinders and a bracket. This 80 mm bore suits medium-heavy push tasks; if you need less force, the 63 mm bore delivers 1559 N push per section at 0.5 MPa. For a direct replacement, match an SCT80 with both strokes (60 mm and 40 mm), PT thread, basic mounting, and no magnet. Since the shortest stroke is under 300 mm, standard guiding is usually sufficient for centred loads.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 40 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 SCT80X60X40 FAQ
It has four discrete positions: 0 mm (home), 60 mm (section 1 extended), 40 mm (section 2 extended), and 100 mm (both sections extended). The strokes are unequal, giving four distinct stopping points.
Yes, a single SCT80X60X40 can often replace two individual SC80 cylinders with 60 mm and 40 mm strokes. You must match the port thread (PT), mounting style, and confirm the force per section (2513 N at 0.5 MPa) meets your load requirement at each stop.
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