Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 30mm give 4 controllable stop positions across a 90mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 160 mm
- Stroke 230 mm
- Total travel90 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30
The SCT80X60X30 is an 80 mm bore multi-position tandem cylinder that provides four fixed rod positions: 0 mm (fully retracted), 30 mm, 60 mm, and 90 mm (total travel). Each piston section generates 2513 N of push force at 0.5 MPa, making it suitable for diverting or sorting tasks where two different mid-stroke stopping points are required.
This genuine AirTAC unit uses a 25 mm diameter rod with an M20x1.5 thread and PT3/8 ports. The tie-rod construction includes a 28 mm adjustable air cushion on each end, and the body length A(SCT) is 296 mm. At the maximum operating pressure of 0.9 MPa, the per-section thrust reaches 4523 N.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 60 / 30 mm |
| Total travel | 90 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) | 30 mm |
| P3 (both extended) | 90 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 SCT80X60X30
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT80X60X30 Is Used
Two-Stage Diverter Gate
Actuates a packaging line diverter to three distinct lane positions: home at 0 mm, lane one at 30 mm, and lane two at 60 mm, with full extension at 90 mm clearing a reject path.
Multi-Depth Pressing
Provides two controlled pressing depths in a single cycle. The 30 mm stroke sets a light pre-compression, while the 60 mm stroke delivers the final forming depth, improving cycle time.
Sequential Part Feeding
Pushes components from a magazine in two steps: a 30 mm stroke separates the first part, and a further 60 mm stroke advances it to the pick point, with the 90 mm position used for clearing jams.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X60X30 the Right Cylinder?
Choose the SCT80X60X30 when an application needs four discrete stopping positions without the complexity of servo controls or two separate cylinders with external hard stops. If a higher force per section is required, stepping up to the 100 mm bore provides 3927 N of push at 0.5 MPa. For a lighter, more compact solution, the 63 mm bore offers 1559 N.
For direct replacement, match the 80 mm bore, the exact 60 mm and 30 mm section strokes, PT port thread, and basic mounting. If a sensor is needed, select the -S magnet option to clamp CMSG or DMSG switches directly onto the tie-rod barrel.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 30 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 SCT80X60X30 FAQ
It has four discrete mechanical stops: 0 mm (retracted), 30 mm, 60 mm, and 90 mm (full extension). The positions are achieved by pressurizing the first section, the second section, or both simultaneously. It is not a freely programmable servo axis.
No, this is a standard double-acting pneumatic cylinder. If supply pressure is exhausted or a directional valve centers, the piston can drift under load. To lock a position safely, you must add an external rod brake or a pilot-operated check valve.
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