Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 15mm give 4 controllable stop positions across a 115mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1100 mm
- Stroke 215 mm
- Total travel115 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S
The SCT100X100X15S is a double-acting multi-position cylinder that delivers four fixed rod positions from its tandem piston design: 0 mm (fully retracted), 15 mm, 100 mm, and a total extended travel of 115 mm. Each actuated piston section provides a substantial 3927 N of push force at 0.5 MPa, scaling up to 7068 N at the maximum operating pressure of 0.9 MPa, driven by a robust 25 mm diameter rod.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for reliable, non-contact position feedback. With a body length of 308 mm and a 29 mm adjustable air cushion, it is engineered for heavy-duty applications requiring distinct stop points without the complexity of servo controls.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 100 / 15 mm |
| Total travel | 115 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) | 100 mm |
| P2 (section 2) | 15 mm |
| P3 (both extended) | 115 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 SCT100X100X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×15 | 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 SCT100X100X15S Is Used
Two-Stage Clamping
Uses the 15 mm stroke for a low-force pre-clamp or part location, then engages the 100 mm stroke for full-power clamping, preventing damage to delicate components.
Diverter Gate Actuation
Positions a gate at 0 mm (closed), 15 mm (partial bypass), or 115 mm (full open) on a conveyor line, with the magnet confirming each discrete position to the PLC.
Multi-Depth Pressing
Executes a shallow 15 mm pressing operation and a deep 115 mm forming stroke in one cycle, using the 7068 N max force for high-torque metal forming tasks.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X15S the Right Cylinder?
Selecting the SCT100X100X15S is ideal when a process demands two different extension lengths from a single actuator, eliminating the cost and space of two separate cylinders. The 100 mm bore provides high force density; if your load requires less thrust, consider stepping down to the 80 mm bore (SCT80 series), which offers 2513 N of push per section at 0.5 MPa. For a direct replacement, match the 100 mm bore, both strokes (100 mm and 15 mm), PT port thread, and the integrated magnet (-S). This cylinder is a basic mount configuration, so ensure your machine frame provides a rigid, direct mounting surface for the end caps.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 15 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 SCT100X100X15S FAQ
This tandem cylinder provides four distinct mechanical stops: 0 mm (fully retracted), 15 mm (first section extended), 100 mm (second section extended), and 115 mm (both sections extended for total travel). The built-in magnet allows you to verify each position with a sensor.
No, like all standard pneumatic cylinders, it will drift or drop if pressure is exhausted. The air cushion only decelerates the piston at end-of-stroke. To safely hold a load at any discrete position without live pressure, you must add an external rod lock or a pilot-operated check valve.
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