Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 200mm give 4 controllable stop positions across a 500mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1300 mm
- Stroke 2200 mm
- Total travel500 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S
The SCT100X300X200S is a 100 mm bore tandem multi-position cylinder offering four distinct rod positions: fully retracted (0 mm), 200 mm, 300 mm, and a total extended travel of 500 mm. Each piston section delivers a powerful 3927 N of push force at 0.5 MPa, scaling up to 7068 N at the maximum operating pressure of 0.9 MPa. The built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback.
With a 25 mm diameter piston rod and M20x1.5 rod-end thread, this cylinder is built for robust, high-force multi-stop applications. The PT1/2 port threads and 29 mm adjustable air cushion on each section provide smooth deceleration at every stop. The body length A(SCT) is 308 mm, making it a compact solution for sequencing two distinct extend positions without needing a second actuator.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 300 / 200 mm |
| Total travel | 500 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) | 300 mm |
| P2 (section 2) | 200 mm |
| P3 (both extended) | 500 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 SCT100X300X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×300 | Stroke 1 (section 1) in mm. |
| ×200 | 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 SCT100X300X200S Is Used
Two-Stage Part Diverting
Use the 200 mm and 500 mm total travel positions to divert heavy packages to two separate conveyor lanes from a single infeed point, controlled by pressurizing the appropriate cylinder sections.
Sequential Clamping
Perform a two-depth clamping operation where the first clamp engages at 200 mm with lower force, and the final high-force clamp is applied at the full 500 mm extension, driven by the combined piston area.
Multi-Depth Pressing
Actuate a press tool to two distinct depths. The 300 mm stop positions a forming tool for a pre-forming operation, while the 500 mm stop completes the final press stroke, all with one compact tandem cylinder.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200S the Right Cylinder?
Select the SCT100X300X200S when your process needs a single actuator to reliably reach two different extended positions under high load, eliminating the complexity of aligning two separate cylinders. With a push force of 3927 N per section at 0.5 MPa, it handles heavy tooling. If your load is lighter, stepping down to an 80 mm bore reduces the per-section push force to 2513 N at the same pressure, which may lower air consumption. For replacement, match the 100 mm bore, both 300 mm and 200 mm strokes, PT port thread, and the -S magnet option. Since the 300 mm section stroke is significant, ensure the load is guided or supported externally to prevent side-loading and rod bending at full extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 300 + 200 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 SCT100X300X200S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 200 mm (section 2 extended), 300 mm (section 1 extended), and 500 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate air ports.
The SCT tandem cylinder replaces two individual actuators and their mounting hardware with a single, pre-aligned unit on one rod line. This saves space, simplifies pneumatic plumbing, and guarantees the relative positioning between the two strokes, which is difficult to achieve reliably with two separate, coupled cylinders.
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