Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 15mm give 4 controllable stop positions across a 45mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 130 mm
- Stroke 215 mm
- Total travel45 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S
The SCT100X30X15S is a 100 mm bore tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 15 mm, 30 mm, and the total extended travel of 45 mm. Each piston section generates a push force of 3927 N at 0.5 MPa, making it a powerful yet compact solution for short-throw, multi-stop indexing tasks.
A built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for reliable end-of-stroke and mid-position sensing. The unit uses a 25 mm diameter rod with M20x1.5 threads, PT1/2 ports, and a 29 mm adjustable air cushion to decelerate the load smoothly at each stop.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 30 / 15 mm |
| Total travel | 45 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) | 30 mm |
| P2 (section 2) | 15 mm |
| P3 (both extended) | 45 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 SCT100X30X15S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×30 | 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 SCT100X30X15S Is Used
Two-Depth Press Insertion
Actuate the 15 mm stroke for a pre-set depth, then the 30 mm stroke for a secondary, deeper insertion, achieving two precise press depths from one compact tandem unit.
3-Way Diverter Gate
Use the 0, 15, and 45 mm positions to align a chute with three separate conveyor lanes, directing parts flow without needing multiple actuators.
Multi-Stop Clamping Fixture
Clamp workpieces of two different thicknesses by stopping the rod at 15 mm or 30 mm extension, ensuring consistent holding force from the 100 mm bore.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X15S the Right Cylinder?
This 4-position tandem cylinder replaces complex setups that would otherwise require two separate cylinders and external hard stops to achieve three working positions. When the application demands higher thrust, consider stepping up within the SCT range; the 100 mm bore is already the largest available, providing 3927 N of push force per section at 0.5 MPa. For a direct replacement, match the 100 mm bore, the 30 mm and 15 mm section strokes, PT port thread, and the integrated magnet sensor option. If a section stroke exceeds 300 mm, evaluate the need for external guide rods to prevent rod bending under side loads.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 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 SCT100X30X15S FAQ
It provides 4 discrete positions: 0 mm (fully retracted), 15 mm (stroke 2 only), 30 mm (stroke 1 only), and 45 mm (both strokes extended). The stops are fixed by the two section strokes and are not infinitely adjustable.
Yes, in applications requiring up to three working positions. The tandem design saves space and simplifies plumbing compared to using two individual cylinders with external stops, provided the 30 mm and 15 mm stroke lengths match your process needs.
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