Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 120mm and 60mm give 4 controllable stop positions across a 180mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1120 mm
- Stroke 260 mm
- Total travel180 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60
The SCT80X120X60 tandem cylinder delivers four fixed rod positions—0 mm, 60 mm, 120 mm, and the full 180 mm total travel—by combining two piston sections on a common 25 mm rod. Each section generates 2513 N of push force at 0.5 MPa, making this 80 mm bore unit suitable for diverting or sorting tasks that need three intermediate stops without external hard stops.
With a PT3/8 port and a 28 mm adjustable air cushion on each end, the cylinder decelerates the load smoothly even at speeds up to 800 mm/s. The body length A(SCT) is 296 mm, and the maximum push per section rises to 4523 N at the 0.9 MPa operating limit, giving you substantial thrust in a compact tandem package.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 120 / 60 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) | 120 mm |
| P2 (section 2) | 60 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 SCT80X120X60
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×120 | Stroke 1 (section 1) in mm. |
| ×60 | 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 SCT80X120X60 Is Used
Two-Way Diverter Gate
Use the four positions to route packages to two separate conveyor lanes with a single actuator, stopping at a retracted home, an intermediate divert, and a full-extend position.
Multi-Depth Pressing
Control a press platen to two different working depths—60 mm and 120 mm—plus a fully retracted safe position for loading and unloading parts.
Staged Assembly Stop
Index a fixture through four precise locations along an assembly line, using the discrete 60 mm and 120 mm stops to present components for sequential operations.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X120X60 the Right Cylinder?
Choose the SCT80X120X60 when your application requires four distinct stop positions from a single tie-rod assembly, avoiding the complexity and plumbing of two separate cylinders with external brackets. If your force requirement is lower, stepping down to the 63 mm bore SCT reduces per-section push to 1559 N at 0.5 MPa; for higher thrust, the 100 mm bore version provides 3927 N per section. This cylinder replaces any AirTAC SCT80 with 120 mm and 60 mm strokes, matching PT thread and basic mounting. For strokes over 300 mm, consider adding an external guide to manage side loads on the rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 120 + 60 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 SCT80X120X60 FAQ
It provides four discrete rod positions: fully retracted (0 mm), first section extended (60 mm), second section extended (120 mm), and both sections extended for the total travel of 180 mm. The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, if your process needs the specific 60 mm and 120 mm stops. The SCT80X120X60 consolidates two strokes into one tie-rod body, saving space and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the PT3/8 port and basic mounting configuration.
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