Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 150mm give 3 controllable stop positions across a 300mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1150 mm
- Stroke 2150 mm
- Total travel300 mm
- Positions3 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150
The SCT80X150X150 is an 80 mm bore, double-acting tandem cylinder that delivers three fixed rod positions: fully retracted (0 mm), mid-stop (150 mm), and full extension (300 mm). Each piston section generates 2513 N of push force at 0.5 MPa, scaling up to 4523 N at the maximum operating pressure of 0.9 MPa, driven through a rigid 25 mm diameter rod.
With a 28 mm adjustable air cushion at each end and a body length of 296 mm, this tie-rod cylinder decelerates loads smoothly without external shock absorbers. The PT3/8 ports and standard TPU seals suit general industrial environments from -20 to +70 °C, making it a robust solution for three-position sorting or clamping tasks.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 150 / 150 mm |
| Total travel | 300 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) | 150 mm |
| P2 (both extended) | 300 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 SCT80X150X150
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×150 | 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 SCT80X150X150 Is Used
3-Position Diverter Gate
Controls a flap or gate on a conveyor line to three precise angles—closed, mid-divert, and full bypass—using the 0, 150, and 300 mm stroke positions for package routing.
Two-Depth Pressing Station
Provides a partial advance (150 mm) for a pre-compression step and a full 300 mm stroke for final pressing, eliminating the need for a complex servo-driven axis.
Multi-Stop Clamping Fixture
Clamps workpieces of two different thicknesses in a single fixture. The 150 mm position handles thin parts, while the 300 mm position secures larger assemblies with consistent force.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X150 the Right Cylinder?
Choose the SCT80X150X150 when a single actuator must reliably stop at three distinct points without the complexity of two separate cylinders and external hard stops. If your force requirement is lower, stepping down to the 63 mm bore provides 1559 N of push per section at 0.5 MPa; for heavier loads, the 100 mm bore delivers 3927 N. Ensure the compressed air supply is filtered to 40 µm to protect the internal seals.
For replacement, match an AirTAC SCT with an 80 mm bore, both strokes set to 150 mm, PT thread, and basic mounting. Since the total travel reaches 300 mm, verify that the rod is adequately guided if significant side loads are present to prevent bending or premature seal wear.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 150 + 150 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 SCT80X150X150 FAQ
It provides three distinct mechanical stop positions: 0 mm (fully retracted), 150 mm (first section extended), and 300 mm (both sections extended). These are fixed by the cylinder's internal construction, not infinitely variable.
Yes, in many cases it can replace a setup with two separate 80 mm bore cylinders and external stops. The tandem design simplifies plumbing and mounting, but ensure the replacement matches the 150 mm per-section stroke, PT3/8 ports, and tie-rod construction.
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