Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 200mm give 3 controllable stop positions across a 400mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1200 mm
- Stroke 2200 mm
- Total travel400 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S
The SCT100X200X200S is a double-acting multi-position tandem cylinder that delivers three discrete rod positions: 0 mm (fully retracted), 200 mm (first section extended), and 400 mm (both sections extended). Each 100 mm bore section produces 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 suitable for heavy-duty stop-and-locate tasks.
This model is equipped with a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The 25 mm diameter piston rod, PT1/2 port connections, and a 29 mm air cushion at each end ensure robust, decelerated end-of-stroke performance. The body length A(SCT) is 308 mm.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 200 / 200 mm |
| Total travel | 400 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 200 mm |
| P2 (both extended) | 400 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 SCT100X200X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×200 | 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 SCT100X200X200S Is Used
3-Position Diverter Gate
Actuates a conveyor diverter to three fixed positions—home, sort lane A, and sort lane B—using the 0, 200, and 400 mm stroke positions for reliable material routing.
Two-Stage Clamping Fixture
Provides a low-force pre-clamp at the 200 mm position and full clamping force at 400 mm, using the tandem piston design to sequence hydraulic or pneumatic work-holding.
Multi-Stop Assembly Press
Powers a press tool to a safe approach position at 200 mm and a final pressing depth at 400 mm, with the 3927 N per-section force handling substantial insertion loads.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X200X200S the Right Cylinder?
Selecting the SCT100X200X200S provides a compact alternative to coupling two separate 100 mm bore cylinders for a two-stop application, simplifying mounting and air plumbing. If your force requirement is lower, consider stepping down to the 80 mm bore (SCT80 series), which provides 2513 N of push per section at 0.5 MPa. For a direct replacement, match the 100 mm bore, both 200 mm strokes, PT port thread, basic mounting, and the -S magnet option exactly.
With a total travel of 400 mm, this cylinder operates well within standard stroke limits. Ensure the guided load is aligned to prevent excessive side-loading on the 25 mm rod, particularly when stopping at the intermediate 200 mm position under high momentum.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 200 + 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 SCT100X200X200S FAQ
It provides three distinct mechanical stop positions because the two stroke lengths are equal. The rod can be positioned at 0 mm (fully retracted), 200 mm (first section extended), and 400 mm total travel (both sections extended).
No, the SCT is a purely pneumatic actuator and will not hold its position if pressure is lost or a directional valve is centered. To securely hold a load at the 200 mm stop without live pressure, you must add an external mechanical rod lock or a pilot-operated check valve in the circuit.
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