Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 100mm give 3 controllable stop positions across a 200mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 2100 mm
- Total travel200 mm
- Positions3 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S
The SCT80X100X100S is a double-acting multi-position cylinder that provides three fixed rod positions: fully retracted (0 mm), extended by the first stroke (100 mm), and fully extended using both sections (200 mm total travel). Each 80 mm bore section delivers 2513 N of push force at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa, making it suitable for medium-duty sorting and diverting tasks.
This model includes a built-in magnet, allowing standard CMSG, DMSG, or EMSG sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The cylinder uses a 25 mm diameter piston rod, PT 3/8 ports, and has a 28 mm adjustable air cushion at each end to decelerate the load smoothly. The body length A(SCT) is 296 mm, providing a compact tandem package for its stroke.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 100 mm |
| Total travel | 200 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| 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, 28 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 100 mm |
| P2 (both extended) | 200 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80X100X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT80X100X100S Is Used
3-Position Diverter Gate
Actuates a gate on a conveyor to three fixed positions—closed, divert left, and divert right—using the 0, 100, and 200 mm stops for reliable package routing.
Two-Depth Pressing Station
Provides a partial advance (100 mm) for a pre-compression step and a full advance (200 mm) for final pressing, eliminating the need for a secondary actuator.
Multi-Stop Material Feed
Indexes a material strip or component tray to two precise feed lengths in one cycle, using the discrete 100 mm and 200 mm positions for a two-stage linear transfer.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X100S the Right Cylinder?
Choose the SCT80X100X100S when your application requires three distinct mechanical stops without the complexity of two separate cylinders and external valves. If your load demands higher force, stepping up to the 100 mm bore SCT series provides 3927 N of push per section at 0.5 MPa. For a direct replacement, ensure the new unit matches the 80 mm bore, both 100 mm strokes, PT port thread, basic mounting, and the -S magnet option for sensor compatibility.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 100 + 100 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 SCT80X100X100S FAQ
It provides three distinct mechanical stop positions: 0 mm (fully retracted), 100 mm (first section extended), and 200 mm (both sections extended). Because both strokes are equal, the 100 mm position is shared, resulting in three unique stops.
Yes, the -S suffix designates a built-in magnet along the barrel, making it fully compatible with AirTAC CMSG, DMSG, and EMSG reed or solid-state sensors for detecting the piston's position at each stop.
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