Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 90mm and 60mm give 4 controllable stop positions across a 150mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 190 mm
- Stroke 260 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S
The SCT100X90X60S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions from two independent piston sections on a common rod line. With stroke1 set at 90 mm and stroke2 at 60 mm, the reachable stops are 0 mm (fully retracted), 90 mm, 60 mm, and the combined total travel of 150 mm, giving machine builders a compact way to handle three distinct extended positions without complex servo controls.
Each 100 mm bore section generates 3927 N of push force at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa. The cylinder uses a 25 mm diameter rod with an M20x1.5 thread, PT1/2 ports, and a 29 mm adjustable air cushion at each end. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing at any of the four stops.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 90 / 60 mm |
| Total travel | 150 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) | 90 mm |
| P2 (section 2) | 60 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 (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 SCT100X90X60S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×90 | Stroke 1 (section 1) in mm. |
| ×60 | 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 SCT100X90X60S Is Used
Three-Stop Diverter Gate
Uses the 0, 60, and 150 mm positions to direct product flow to three separate conveyor lanes, with the 90 mm stop serving as a mid-point staging position for inspection.
Multi-Depth Press Insertion
Controls a pressing tool to three distinct depths in one cycle—partial insertion at 60 mm, full seat at 90 mm, and a final coining stroke at the full 150 mm travel.
Staged Clamping Fixture
Operates a welding fixture with a 60 mm pre-clamp, a 90 mm alignment position, and full 150 mm closure, all sensed by CMSG switches mounted on the SCT100X90X60S barrel.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X90X60S the Right Cylinder?
Select the SCT100X90X60S when your application needs three extended stopping points with substantial force in a single tie-rod assembly, avoiding the cost and alignment complexity of two separate 100 mm bore cylinders with external hard stops. If the 3927 N push per section at 0.5 MPa exceeds your requirement, stepping down to an 80 mm bore SCT80X90X60S reduces the per-section push to 2513 N at the same pressure while keeping the same four-position logic. For direct replacement, match the 100 mm bore, both strokes (90 mm and 60 mm), PT port thread, and the -S magnet option; the basic mounting configuration accepts the full SCT accessory range including FA/FB flanges, CA/CB devises, or LB foot mounts.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 90 + 60 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 SCT100X90X60S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 90 mm (section 1 extended), 60 mm (section 2 extended), and 150 mm (both sections extended, total travel). The unequal strokes create four unique rod-end locations.
No. Like all SCT tandem cylinders, it does not have a mechanical locking or brake feature. If the directional valve centers or supply pressure drops, the piston can drift. To hold a load at any intermediate stop without live pressure, you must add an external rod brake, a pilot-operated check valve, or a mechanical lock.
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