Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 500mm give 4 controllable stop positions across a 650mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1150 mm
- Stroke 2500 mm
- Total travel650 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500
The AirTAC SCT80X150X500 is a tie-rod tandem cylinder that delivers four fixed rod positions from two independent piston sections on a common rod line. By pressurising the 150 mm section, the 500 mm section, or both simultaneously, the rod reaches exactly 0 mm, 150 mm, 500 mm, or the full 650 mm total travel. Each 80 mm bore section generates 2513 N of push force at 0.5 MPa, rising to 4523 N at 0.9 MPa, making it a powerful multi-stop actuator for sequenced material handling.
Built with a 25 mm diameter rod and PT3/8 ports, this genuine AirTAC cylinder features an adjustable air cushion at both ends of each section with a 28 mm cushion length. The body length A(SCT) is 296 mm plus the combined strokes. With a speed range of 30-800 mm/s and an operating pressure from 0.15 to 1.0 MPa, it suits applications needing three or four distinct mechanical stops without complex servo controls.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 150 / 500 mm |
| Total travel | 650 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 150 mm |
| P2 (section 2) | 500 mm |
| P3 (both extended) | 650 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 SCT80X150X500
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×500 | 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 SCT80X150X500 Is Used
Two-Stage Sorting Gate
Divert packages to three lanes using the 150 mm and 500 mm stops. Retract to 0 mm for lane one, extend to 150 mm for lane two, and fully extend to 650 mm to reach lane three.
Multi-Depth Pressing
Control a press platen to two distinct depths. Use the 150 mm stop for a shallow pre-form operation and the 500 mm stop for a deep draw, with full retraction at 0 mm for part loading.
Sequential Part Feeding
Advance a workpiece through a multi-station process. The 150 mm stroke indexes the part to a drilling station, and the 500 mm stroke moves it to a tapping station, all with one compact actuator.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X500 the Right Cylinder?
Choose the SCT80 tandem cylinder when your process requires two or more fixed stop positions that would otherwise need two separate cylinders and external hard stops. The 80 mm bore provides a mid-range force option: stepping down to a 63 mm bore reduces per-section push to 1559 N at 0.5 MPa, while moving up to a 100 mm bore increases it to 3927 N. For replacement, match the 80 mm bore, both the 150 mm and 500 mm strokes, PT thread, and basic mounting. If your application involves a long 500 mm section stroke, consider external guiding or a rod support to manage side loads and prevent rod bending during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 150 + 500 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 SCT80X150X500 FAQ
This tandem cylinder provides four discrete mechanical stop positions: 0 mm (fully retracted), 150 mm (first section extended), 500 mm (second section extended), and 650 mm (both sections extended). It does not offer infinitely variable positioning.
The force is generated per single piston section. Each 80 mm bore section delivers 2513 N push and 2268 N pull at 0.5 MPa. The two sections do not combine their force; they act independently to achieve the different stop positions.
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