Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 180mm and 180mm give 3 controllable stop positions across a 360mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1180 mm
- Stroke 2180 mm
- Total travel360 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S
The AirTAC SCT100X180X180S is a double-acting, multi-position tandem cylinder that provides three distinct, repeatable rod positions: 0 mm (fully retracted), 180 mm, and 360 mm (total travel). By pressurizing either or both of its two piston sections, you achieve fixed mechanical stops without the complexity of a servo system. Each section delivers a substantial 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty diverting or two-stage pressing operations.
This model features a built-in magnet, allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position confirmation. The 100 mm bore cylinder uses a 25 mm diameter piston rod with an M20x1.5 thread and PT 1/2 ports. It incorporates an adjustable air cushion (29 mm length) for end-of-stroke deceleration, and the body length A(SCT) is 308 mm. Operating pressure ranges from 0.15 to 1.0 MPa.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 180 / 180 mm |
| Total travel | 360 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 180 mm |
| P2 (both extended) | 360 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 SCT100X180X180S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×180 | Stroke 1 (section 1) in mm. |
| ×180 | 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 SCT100X180X180S Is Used
3-Position Diverter Gate
Controls a gate on a conveyor line to three precise locations: home (0 mm), divert to lane one (180 mm), and divert to lane two (360 mm), using simple pneumatic controls.
Two-Stage Clamping Fixture
Applies a low-force pre-clamp at the 180 mm position, then advances to the full 360 mm stroke for final high-force clamping, all with one compact actuator.
Multi-Stop Material Stop
Acts as a retractable hard stop for pallets or workpieces, offering two different stop depths (180 mm and 360 mm) to handle mixed product sizes on the same line.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X180X180S the Right Cylinder?
Select the SCT100X180X180S when your application requires three fixed mechanical positions for a heavy load, eliminating the need for two separate cylinders and their mounting hardware. This tandem unit is more compact and ensures inherent synchronization of the two strokes. If your force requirement is lower, consider stepping down to the 80 mm bore SCT, which provides 2513 N of push force per section at 0.5 MPa.
For a direct replacement, match the 100 mm bore, both 180 mm section strokes, PT port thread, and the built-in magnet (-S suffix). This is a basic mounting model, so ensure your fixture can support the cylinder body directly. Given the 360 mm total extension, evaluate the application for potential side loading; external guides or a rod support may be necessary to prevent bending.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 180 + 180 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 SCT100X180X180S FAQ
It provides 3 distinct mechanical stop positions because both stroke sections are equal (180 mm). The rod positions are: fully retracted (0 mm), mid-extension (180 mm), and fully extended (360 mm).
No, a standard single-rod SC cylinder cannot replicate the three discrete stop positions. You must replace it with an SCT tandem cylinder with the same 100 mm bore, both 180 mm strokes, PT port thread, and the -S magnet option for full functional compatibility.
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