Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 75mm give 4 controllable stop positions across a 225mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1150 mm
- Stroke 275 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S
The SCT100X150X75S is a 100 mm bore multi-position tandem cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 75 mm, 150 mm, and the total travel of 225 mm. Each piston section generates a push force of 3927 N at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, making it a robust solution for heavy-duty material handling tasks.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to be mounted directly on the tie-rod barrel for non-contact position sensing. The 25 mm diameter rod and 29 mm adjustable air cushion at each end ensure reliable deceleration, while the PT1/2 port threads provide ample flow for the 100 mm bore.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 150 / 75 mm |
| Total travel | 225 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 150 mm |
| P2 (section 2) | 75 mm |
| P3 (both extended) | 225 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 SCT100X150X75S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×75 | 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 SCT100X150X75S Is Used
Four-Position Sorting Gate
Direct packages or components to four distinct conveyor lanes by pressurizing the cylinder sections to reach the 0, 75, 150, or 225 mm rod positions, simplifying complex diverter mechanisms.
Two-Depth Pressing Station
Perform a primary press stroke to 150 mm and a secondary, shallower pressing operation at the 75 mm stop, all with a single actuator and consistent 3927 N force per section.
Multi-Step Clamping Fixture
Accommodate two different workpiece heights in a welding or assembly jig by moving the clamp arm to a 75 mm pre-clamp position or the full 225 mm clamping stroke.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X150X75S the Right Cylinder?
Choosing this SCT100X150X75S provides a compact alternative to using two separate 100 mm bore cylinders with external hard stops to achieve a four-position sequence. If the application requires a shorter total stroke, the 80 mm bore SCT series offers a push force of 2513 N per section at 0.5 MPa. For replacement, ensure the new unit matches the 100 mm bore, both stroke lengths of 150 mm and 75 mm, the PT port thread, and the built-in magnet. Given the 225 mm total extension, ensure the guided load is supported to prevent excessive side-loading on the 25 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 75 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 SCT100X150X75S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 75 mm (section 2 extended), 150 mm (section 1 extended), and the combined total travel of 225 mm (both sections extended).
The force is generated per single piston section and is not doubled. Each section provides a push force of 3927 N at 0.5 MPa and a pull force of 3681 N. The force remains consistent regardless of which combination of sections is pressurized to reach a position.
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