Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 5mm give 4 controllable stop positions across a 35mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 130 mm
- Stroke 25 mm
- Total travel35 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S
The SCT100X30X5S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions from two independent piston sections on a common 25 mm rod. With strokes of 30 mm and 5 mm, the reachable stops are 0 mm (fully retracted), 30 mm, 5 mm, and the total travel of 35 mm, giving precise discrete positioning for short-throw sequencing tasks.
Each 100 mm bore section generates 3927 N of push force at 0.5 MPa and up to 7068 N at the maximum operating pressure of 0.9 MPa. The built-in magnet (suffix -S) allows direct mounting of CMSG/DMSG/EMSG sensors for position feedback, while the 29 mm adjustable air cushion at each end decelerates the 25 mm rod smoothly. The tie-rod body has an A-length of 308 mm and uses PT1/2 ports.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 30 / 5 mm |
| Total travel | 35 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) | 5 mm |
| P3 (both extended) | 35 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 SCT100X30X5S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT100X30X5S Is Used
Two-Level Part Staging
Advances a stop pin or gate to a 5 mm pre-stage position and then a 30 mm final lock position, controlling part flow with sensor-confirmed discrete stops.
Short-Stroke Press Sequencing
Provides a 5 mm contact touch and a 30 mm pressing stroke in one unit, ideal for delicate assembly where a light initial contact is followed by a controlled press.
Compact Diverter Gate
Uses the 5 mm and 30 mm positions to shift a small diverter blade between two close-spaced conveyor lanes, with the 35 mm total travel acting as a third bypass position.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X30X5S the Right Cylinder?
Choose the SCT100X30X5S when you need a compact tandem unit that provides two short, distinct advance positions plus a combined stroke without installing multiple cylinders and external hard stops. If your force requirement is lower, stepping down to the 80 mm bore reduces per-section push to 2513 N at 0.5 MPa, saving space and air consumption. For a direct replacement, match the 100 mm bore, both strokes (30 mm and 5 mm), PT port thread, basic mounting, and the -S magnet option; the SCT is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profiles.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 5 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 SCT100X30X5S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 30 mm (section one extended), 5 mm (section two extended), and 35 mm (both sections extended). Because the two strokes are different, all four positions are unique.
It can replace two single-rod cylinders in applications that only need the four fixed stop positions defined by the 30 mm and 5 mm strokes. However, the force output is per-section (3927 N push at 0.5 MPa), not a combined force, and the cylinder does not hold position if air pressure is lost—an external pilot-operated check valve or rod lock is required for load holding.
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