Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 285mm and 285mm give 3 controllable stop positions across a 570mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1285 mm
- Stroke 2285 mm
- Total travel570 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285
The SCT100X285X285 is a 100 mm bore tandem cylinder delivering three fixed rod positions: fully retracted (0 mm), mid-stroke at 285 mm, and fully extended at 570 mm. Each piston section generates 3927 N of push force at 0.5 MPa, scaling up to 7068 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy-duty sorting or two-depth clamping.
Built on a robust tie-rod design with a 25 mm diameter rod and M20x1.5 rod thread, this cylinder uses PT 1/2 ports and features a 29 mm adjustable air cushion at each end. The body length A(SCT) is 308 mm, providing a compact footprint for the combined 570 mm total travel.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 285 / 285 mm |
| Total travel | 570 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/2 |
| 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, 29 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 285 mm |
| P2 (both extended) | 570 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCT100X285X285
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×285 | Stroke 1 (section 1) in mm. |
| ×285 | 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 SCT100X285X285 Is Used
Two-Depth Pressing
Achieves a partial press at 285 mm and a full-depth press at 570 mm in a single compact unit, ideal for assembly fixtures.
Heavy Part Diverting
Directs heavy workpieces to one of three conveyor lanes using the 0, 285, and 570 mm stop positions for high-throughput sorting.
Multi-Stop Gate
Operates a safety gate with a closed, partially open, and fully open position, providing 3927 N of holding force per section at standard line pressure.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X285X285 the Right Cylinder?
Choose the SCT100X285X285 when a single actuator must reliably stop at 0, 285, and 570 mm without the complexity of two separate cylinders and external hard stops. If a higher force per section is not required, stepping down to the 80 mm bore reduces push force to 2513 N at 0.5 MPa. For replacement, match the 100 mm bore, both 285 mm strokes, PT 1/2 ports, and basic mounting configuration. With a section stroke nearing 300 mm, ensure the external load is guided to prevent excessive rod bending and side-load wear.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 285 + 285 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 SCT100X285X285 FAQ
This tandem cylinder provides three discrete rod positions: fully retracted at 0 mm, an intermediate stop at 285 mm, and full extension at 570 mm total travel.
Each of the two piston sections delivers 3927 N of push force when supplied with 0.5 MPa air pressure, reaching 7068 N at the maximum operating pressure of 0.9 MPa.
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