Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 50mm give 4 controllable stop positions across a 150mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1100 mm
- Stroke 250 mm
- Total travel150 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S
The SCT100X100X50S tandem cylinder provides four fixed rod positions—0 mm, 100 mm, 50 mm, and the full 150 mm extension—by combining two piston sections on a common 25 mm rod. Each section delivers 3927 N of push force at 0.5 MPa, rising to 7068 N at the 0.9 MPa maximum operating pressure, making it a powerful solution for multi-stop material handling.
A built-in magnet allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position confirmation. The cylinder body length A(SCT) is 308 mm, with a 29 mm adjustable air cushion at each end to decelerate the load smoothly. PT1/2 ports and an M20x1.5 rod thread are standard.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 100 / 50 mm |
| Total travel | 150 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) | 50 mm |
| P3 (both extended) | 150 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 SCT100X100X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT100X100X50S Is Used
Two-Stage Diverter Gate
Actuates a chute or gate to three precise positions—fully open (150 mm), partially open (100 mm), and a third bypass position (50 mm)—to sort packages by size on a conveyor line.
Multi-Depth Pressing
Provides two distinct pressing depths (100 mm and 150 mm) plus a retracted home position for a forming or clamping operation, eliminating the need for manual depth adjustments.
Sequential Part Transfer
Moves a workpiece through three stations on an assembly fixture: pick (0 mm), first process position (100 mm), and second process position (150 mm), using the 50 mm stop for a safe intermediate point.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X50S the Right Cylinder?
Choose the SCT when a single actuator must reach multiple discrete stops without the complexity of two separate cylinders and external hard stops. This 100 mm bore model suits heavy push tasks; if your load is lighter, stepping down to an 80 mm bore reduces the per-section push force to 2513 N at 0.5 MPa. For a direct replacement, match the 100 mm bore, both strokes (100 mm and 50 mm), PT port thread, basic mounting, and the -S magnet suffix.
With a 150 mm total travel, rod bending is not a primary concern under axial loads, but ensure the load is guided if significant side forces are present.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 50 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 SCT100X100X50S FAQ
It provides four discrete rod positions: 0 mm (fully retracted), 100 mm (first section extended), 50 mm (second section extended), and 150 mm (both sections extended). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder sections.
Yes, in applications requiring two fixed extension points. A single SCT100X100X50S with the -S magnet replaces the need for two SC100 cylinders with external stops, simplifying plumbing and mounting. Ensure the replacement matches the 100 mm bore, 100 mm and 50 mm strokes, PT ports, and basic mounting.
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