Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 100mm give 4 controllable stop positions across a 150mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 150 mm
- Stroke 2100 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S
The AirTAC SCT80X50X100S is a tie-rod multi-position cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 50 mm, 100 mm, and 150 mm (total travel). Each of its two 80 mm bore sections generates 2513 N of push force at 0.5 MPa, making it a robust actuator for sequencing tasks. The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors to confirm each stop position.
This model uses a 25 mm diameter piston rod with an M20x1.5 rod thread and PT3/8 ports. The adjustable pneumatic cushion at each end is 28 mm long, helping to manage end-of-stroke impact. The body length A(SCT) is 296 mm. With an operating pressure range of 0.15 to 1.0 MPa, the push force per section can reach 4523 N at 0.9 MPa.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 50 / 100 mm |
| Total travel | 150 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) | 50 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 150 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 SCT80X50X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT80X50X100S Is Used
Four-Position Sorting Gate
Divert packages or parts to four distinct lanes by pressurizing section one, section two, or both, achieving precise stops at 50, 100, and 150 mm for multi-chute sortation systems.
Multi-Step Clamping Fixture
Apply two distinct clamping pressures or depths in one automated cycle. The 50 mm stroke section handles initial contact, while the 100 mm section applies full clamping force, with sensors confirming each stage.
Staged Part Transfer
Move a workpiece through a three-step process—pick, intermediate inspection, and final placement—using the 0, 50, 100, and 150 mm rod positions, all verified by the cylinder's magnetic sensors.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X100S the Right Cylinder?
Select the SCT80X50X100S when your application requires a four-position sequence with sensor feedback on an 80 mm bore platform. The integrated magnet saves the cost and complexity of adding external sensor brackets. This tandem cylinder is a more compact and reliable alternative to using two separate 80 mm bore cylinders with external hard stops to achieve the same 50 mm and 100 mm step positions.
If a higher force per section is needed, stepping up to the 100 mm bore SCT series provides 3927 N of push at 0.5 MPa. For a direct replacement, match the 80 mm bore, both the 50 mm and 100 mm strokes, the PT port thread, and ensure the replacement also includes the -S magnet option for sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 100 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 SCT80X50X100S FAQ
This four-position cylinder provides discrete stops at 0 mm (fully retracted), 50 mm (section 1 extended), 100 mm (section 2 extended), and 150 mm (both sections extended for full travel). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in many cases. The SCT80X50X100S consolidates two 50 mm and 100 mm stroke movements into one tandem body, saving space and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the 80 mm bore, PT3/8 ports, and has the -S magnet option for your sensors.
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