Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 260mm and 40mm give 4 controllable stop positions across a 300mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1260 mm
- Stroke 240 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S
The SCT100X260X40S is a double-acting tandem cylinder that provides four fixed rod positions: fully retracted (0 mm), 260 mm, 40 mm, and the total travel of 300 mm. Each 100 mm bore piston section generates 3927 N of push force at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, driven through a rigid 25 mm diameter rod.
A built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. The body length A(SCT) is 308 mm, and the integrated air cushion is 29 mm long, providing adjustable end-of-stroke deceleration for both sections.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 260 / 40 mm |
| Total travel | 300 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) | 260 mm |
| P2 (section 2) | 40 mm |
| P3 (both extended) | 300 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 SCT100X260X40S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×260 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT100X260X40S Is Used
Two-Stage Diverter Gate
Actuate a diverter chute to three positions: home (0 mm), a partial bypass at 40 mm, and a full divert at the combined 300 mm stroke for routing bulk materials to separate lanes.
Dual-Depth Clamping Fixture
Clamp a workpiece at a low-force standoff distance of 260 mm, then advance the second section by 40 mm to apply full clamping pressure, ensuring precise, repeatable engagement without tooling adjustment.
Sequential Label Application
Position a tamp pad at a standby height of 260 mm, extend to a 40 mm pre-dispense position for label pickup, and finally drive to the full 300 mm reach for application onto varying product heights.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X260X40S the Right Cylinder?
Choose the SCT100X260X40S when your process needs two independent, repeatable stop points beyond the home position without the complexity of two separate cylinders and external stops. If 3927 N per section is more thrust than required, stepping down to an 80 mm bore reduces the push force to 2513 N at 0.5 MPa while keeping the same multi-position functionality. For a direct replacement, match the 100 mm bore, both strokes (260 mm and 40 mm), the PT port thread, basic mounting, and the integrated magnet (-S). Given the 260 mm stroke on the primary section, ensure the load is guided or supported to prevent excessive side-loading and rod deflection during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 260 + 40 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 SCT100X260X40S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 260 mm (section one extended), 40 mm (section two extended), and 300 mm (both sections extended simultaneously). The positions are fixed by the two stroke lengths and are not infinitely adjustable.
The SCT integrates both strokes on a single common rod, guaranteeing coaxial alignment and reducing mounting footprint. It eliminates the need for external brackets, couplers, and complex sequencing valves required to synchronize two independent cylinders, while providing the same per-section force (3927 N push at 0.5 MPa) as a standard SC100.
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