Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 300mm give 4 controllable stop positions across a 400mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1100 mm
- Stroke 2300 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S
The SCT100X100X300S delivers four discrete rod positions—0 mm, 100 mm, 300 mm, and 400 mm—from a single tandem body. Each 100 mm bore section generates 3927 N of push force at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, making it a powerful choice for multi-stop material handling.
This model includes a built-in magnet, so CMSG, DMSG, or EMSG sensors can be clamped directly onto the tie-rod barrel for non-contact position sensing. The 25 mm diameter rod and 29 mm air cushion at each end provide robust guidance and controlled deceleration across the full 400 mm total stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 100 / 300 mm |
| Total travel | 400 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) | 300 mm |
| P3 (both extended) | 400 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 SCT100X100X300S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT100X100X300S Is Used
Two-Stage Diverter Gate
Actuates a chute or gate to three distinct positions—closed, partial divert at 100 mm, and full divert at 400 mm—routing product flows in packaging or bulk handling lines.
Multi-Depth Pressing
Provides a 100 mm pre-press position and a 400 mm full-depth forming stroke, allowing a single press station to handle two different part geometries or compaction steps.
Staggered Part Feeding
Pushes components to a 300 mm staging point, then advances them a further 100 mm into a nest, creating a reliable two-step feed sequence from one compact cylinder package.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300S the Right Cylinder?
Choose the SCT100X100X300S when a single actuator must stop at two intermediate points without the complexity of two separate cylinders and external hard stops. The 100 mm and 300 mm section strokes create a 400 mm total reach, ideal for a two-step extend-and-retract sequence. If the force requirement is lower, stepping down to an 80 mm bore reduces per-section push to 2513 N at 0.5 MPa while keeping the same position logic.
For a drop-in replacement, match the 100 mm bore, both strokes (100 mm and 300 mm), PT port thread, basic mounting, and the -S magnet option. With a 300 mm stroke on the second section, ensure the rod is externally guided if significant side loads are present to prevent bending of the 25 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 300 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 SCT100X100X300S FAQ
It provides four distinct mechanical stop positions: fully retracted (0 mm), first section extended (100 mm), second section extended (300 mm), and both sections extended for the total travel (400 mm). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
No, the SCT100X100X300S does not have a mechanical locking or brake feature. If air pressure is exhausted or lost, the piston can drift from its position. To hold a load at an intermediate stop without live pressure, you must add an external rod lock, brake, or pilot-operated check valve.
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