Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 500mm give 4 controllable stop positions across a 600mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 2500 mm
- Total travel600 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S
The SCT80X100X500S is an 80 mm bore tandem multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 100 mm, 500 mm, and the combined total travel of 600 mm. Each piston 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.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position feedback at each stop. The cylinder body has an A(SCT) length of 296 mm and uses a 28 mm adjustable air cushion on each section to decelerate the load smoothly at both ends of the stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 500 mm |
| Total travel | 600 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) | 100 mm |
| P2 (section 2) | 500 mm |
| P3 (both extended) | 600 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 SCT80X100X500S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×500 | 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 SCT80X100X500S Is Used
Two-Stage Part Feeding
Extend to 100 mm for a pre-stop inspection gate, then to 500 mm to push the part fully onto the main conveyor, using the 600 mm total travel for a secondary clearing stroke.
Multi-Depth Pressing
Perform a shallow 100 mm press for an initial forming operation, then advance to the full 500 mm depth for final compaction, with the 600 mm position acting as an ejection stroke.
4-Way Diverter Gate
Use the four discrete rod positions (0, 100, 500, 600 mm) to align a diverter chute with four separate lanes, with sensor confirmation at each stop via the built-in magnet.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X500S the Right Cylinder?
Select the SCT80X100X500S when your application needs four defined stopping points without the complexity of servo control. The tandem design is mechanically simpler and more cost-effective than installing two separate 80 mm bore cylinders with external hard stops to achieve the same 100 mm and 500 mm intermediate positions. If your force requirement is lower, stepping down to a 63 mm bore reduces the per-section push force to 1559 N at 0.5 MPa.
For a direct replacement, match the 80 mm bore, both the 100 mm and 500 mm section strokes, the PT port thread, and the built-in magnet (-S). With a 500 mm second stroke, ensure the rod is adequately guided and supported to prevent side-loading and buckling, particularly when the rod is fully extended to the 600 mm total travel position.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 500 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 SCT80X100X500S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 100 mm (first section extended), 500 mm (second section extended), and 600 mm (both sections extended for total travel).
No. A single SC80 cylinder only provides two positions (fully retracted and fully extended). To replicate the four-position functionality, you must use an SCT80 tandem cylinder with the same 100 mm and 500 mm strokes, or a complex setup of two separate cylinders with external stops.
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