Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 500mm give 4 controllable stop positions across a 550mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 150 mm
- Stroke 2500 mm
- Total travel550 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S
The SCT100X50X500S is a double-acting multi-position tandem cylinder that provides four fixed rod positions: 0 mm (fully retracted), 50 mm, 500 mm, and the combined 550 mm total travel. Each piston section generates 3927 N of push force at 0.5 MPa, giving predictable power for sequenced two-depth operations.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors along the tie-rod barrel for non-contact position feedback. With a 25 mm diameter rod, M20x1.5 rod-end thread, and PT1/2 ports, it uses a 29 mm adjustable air cushion to manage end-of-stroke deceleration. The body length A(SCT) is 308 mm plus strokes.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 50 / 500 mm |
| Total travel | 550 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) | 50 mm |
| P2 (section 2) | 500 mm |
| P3 (both extended) | 550 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 SCT100X50X500S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×50 | 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 SCT100X50X500S Is Used
Two-Stage Clamping
A short 50 mm stroke brings a clamp near the workpiece, then the 500 mm section applies full travel for loading, preventing cycle-time waste on long idle approaches.
Dual-Position Sorting Gate
Retract to 0 mm for one lane, extend to 50 mm for a second, and 500 mm or 550 mm for additional diverting paths on a wide conveyor.
Two-Depth Pressing
Achieve a shallow 50 mm pressing depth and a deep 500 mm forming depth in one cycle, with the 550 mm position for part ejection.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X500S the Right Cylinder?
Choose the SCT100X50X500S when an application needs two distinct extended stops from a single compact unit, avoiding the complexity of two separate cylinders. The 50 mm stroke handles a short initial advance, while the 500 mm section provides the main working travel. If a higher push force is needed at the same pressure, stepping up is not possible as 100 mm is the largest SCT bore; consider an SC series cylinder with external hard stops. For replacement, match the 100 mm bore, both 50 mm and 500 mm strokes, PT port thread, and the built-in magnet. Since the 500 mm stroke section is long, ensure the rod is externally guided if significant side loads are present to prevent bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 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 SCT100X50X500S FAQ
It provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (section one extended), 500 mm (section two extended), and 550 mm (both sections extended). It is not a servo cylinder and cannot stop at intermediate points.
Yes, if the two required strokes are 50 mm and 500 mm. This tandem cylinder integrates both into one rod line, reducing mounting hardware and simplifying pneumatic plumbing. Ensure the replacement matches the 100 mm bore, PT ports, and the -S magnet option for sensor compatibility.
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