Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 200mm give 4 controllable stop positions across a 500mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1300 mm
- Stroke 2200 mm
- Total travel500 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB
The SCT100X300X200LB is a tie-rod multi-position cylinder that delivers four fixed rod positions—0 mm, 200 mm, 300 mm, and the full 500 mm total travel—by pressurising two independent piston sections on a common rod line. Each section generates 3927 N of push force at 0.5 MPa, scaling to 7068 N at the maximum operating pressure of 0.9 MPa, while the 25 mm diameter rod and 29 mm adjustable air cushion provide stable end-of-stroke deceleration.
This model comes configured with an LB foot mounting bracket for secure surface installation, standard PT ports, and TPU seals rated for -20 to +70 °C. With a body length A(SCT) of 308 mm, it integrates into machine frames where a single cylinder must index a load to multiple distinct stops without the complexity of two separate actuators and external hard stops.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 300 / 200 mm |
| Total travel | 500 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) | 300 mm |
| P2 (section 2) | 200 mm |
| P3 (both extended) | 500 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 SCT100X300X200LB
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×300 | 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 SCT100X300X200LB Is Used
Multi-Stop Diverter Gate
Positions a heavy conveyor diverter to four distinct lanes (retracted, intermediate one, intermediate two, fully extended) using simple pneumatic control, eliminating the need for servo positioning on a fixed-index application.
Two-Depth Heavy Press Feed
Advances a pallet or workpiece into a press with a 200 mm partial stroke for a shallow form, then a 300 mm full stroke for a deep draw, using the 3927 N per-section force to overcome friction.
Sequential Clamping Station
Operates a two-stage clamp where the first 200 mm of travel closes the jaws to a pre-set gap and the subsequent 300 mm applies full clamping force, all from a single compact cylinder body.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X300X200LB the Right Cylinder?
Choose this 100 mm bore SCT when you need four-position indexing with substantial force, such as moving a heavy sorting gate between two intermediate positions and a final stop. If your load requires less thrust, stepping down to an 80 mm bore reduces the per-section push force to 2513 N at 0.5 MPa. For replacement, match the 100 mm bore, both the 300 mm and 200 mm strokes, the LB foot mount, and the PT port thread exactly to ensure the mounting footprint and pneumatic interface align without modification. Because the 300 mm section stroke is extended, confirm that the application provides external linear guidance or that the rod is not subjected to excessive side loads that could cause bending or premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 300 + 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 SCT100X300X200LB FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 200 mm (section two extended), 300 mm (section one extended), and 500 mm (both sections extended simultaneously). The positions are fixed by the 300 mm and 200 mm stroke lengths and are not infinitely adjustable.
Yes, it can replace two individually mounted 100 mm bore cylinders with 300 mm and 200 mm strokes where the goal is to achieve four fixed positions on a single guided carriage. The replacement must match the bore, both strokes, the LB foot mounting, and PT port threads to ensure the same physical envelope and pneumatic flow characteristics.
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