Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 90mm give 4 controllable stop positions across a 120mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 130 mm
- Stroke 290 mm
- Total travel120 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S
The SCT100X30X90S is a 100 mm bore multi-position pneumatic cylinder that delivers four distinct rod positions from a single tandem body: 0 mm (fully retracted), 30 mm, 90 mm, and the combined total travel of 120 mm. Each piston section generates a powerful 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty sorting or diverting tasks where two intermediate stops are needed without the complexity of dual cylinders.
This model includes a built-in magnet (-S suffix), allowing standard CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. It features a 25 mm diameter piston rod, M20x1.5 rod thread, and PT1/2 ports. The adjustable air cushion at each end is 29 mm long, and the total body length A(SCT) is 308 mm, providing a compact envelope for a multi-stop actuator.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 30 / 90 mm |
| Total travel | 120 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) | 30 mm |
| P2 (section 2) | 90 mm |
| P3 (both extended) | 120 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 SCT100X30X90S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×90 | 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 SCT100X30X90S Is Used
Four-Position Diverter Gate
Uses the four discrete stops (0, 30, 90, 120 mm) to route packages or materials to four separate conveyor lanes from a single infeed point, simplifying line design.
Multi-Depth Pressing Station
Provides two distinct pressing depths (30 mm and 90 mm) plus a full-depth stroke (120 mm) for assembling components with different insertion requirements in one fixture.
Staged Part Feeding
Advances parts in precise 30 mm and 90 mm increments for a two-step machining or inspection process, ensuring accurate positioning with the built-in magnet for sensor feedback.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X90S the Right Cylinder?
Choose the SCT100X30X90S when your application requires four fixed stop points in a linear stroke up to 120 mm, eliminating the need to mount and synchronize two separate cylinders. If the 3927 N per-section push force at 0.5 MPa is more than required, stepping down to an 80 mm bore (SCT80) reduces the per-section force to 2513 N while keeping the same multi-position functionality. For a direct replacement, match the 100 mm bore, both strokes (30 mm and 90 mm), PT port thread, basic mounting, and the -S magnet option.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 90 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 SCT100X30X90S FAQ
This tandem cylinder provides 4 distinct mechanical stop positions because the two strokes are different: 0 mm (fully retracted), 30 mm (first section extended), 90 mm (second section extended), and 120 mm (both sections extended for total travel).
Yes, in many cases. It replaces a setup with two separate SC100 cylinders of 30 mm and 90 mm stroke, providing the same four stop points in a single, pre-aligned body. Ensure the replacement matches the 100 mm bore, both strokes, PT1/2 ports, and the -S magnet option for sensor compatibility.
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