Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 5mm give 4 controllable stop positions across a 55mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 150 mm
- Stroke 25 mm
- Total travel55 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5
The SCT100X50X5 is a 100 mm bore multi-position cylinder engineered for applications requiring four distinct linear stops. By combining a 50 mm primary stroke with a 5 mm secondary stroke, the rod achieves precise positions at 0, 5, 50, and the total travel of 55 mm. Each of the two piston sections delivers a push force of 3927 N at 0.5 MPa, scaling up to a robust 7068 N at the maximum operating pressure of 0.9 MPa.
This tandem cylinder is built on a durable tie-rod platform with a 25 mm diameter rod and M20x1.5 rod thread. It features a PT1/2 port for straightforward pneumatic connection and an adjustable air cushion with a 29 mm cushion length for smooth end-of-stroke deceleration. The body length A(SCT) is 308 mm, providing a compact envelope for its force class.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 50 / 5 mm |
| Total travel | 55 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) | 5 mm |
| P3 (both extended) | 55 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 SCT100X50X5
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×5 | 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 SCT100X50X5 Is Used
Precision Shim Insertion
Uses the 5 mm secondary stroke to insert a thin shim or spacer after a 50 mm approach, providing two distinct depths from a single actuator.
Two-Stage Part Ejection
Ejects a part 50 mm from a nest, then uses the final 5 mm stroke to fully clear a lip or gate, separating the ejection sequence into two controlled motions.
Micro-Adjustable Hard Stop
Provides a coarse 50 mm travel to a work position and a fine 5 mm hard stop for a pressing or gauging operation, ensuring repeatable dual-depth accuracy.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X5 the Right Cylinder?
Select the SCT100X50X5 when your process needs four fixed mechanical stops without the complexity of servo control. This tandem unit is more compact and cost-effective than linking two separate 100 mm bore cylinders to achieve the same 0/5/50/55 mm position set. If your force requirement is lower, stepping down to the 80 mm bore reduces the per-section push force to 2513 N at 0.5 MPa, while still providing a 25 mm rod.
For a direct replacement, match the 100 mm bore, the exact 50 mm and 5 mm stroke combination, PT port thread, and basic mounting configuration. This model does not include a magnet, so if sensor-based position feedback is needed, select an SCT100X50X5-S variant or add external limit switches.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 5 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 SCT100X50X5 FAQ
This 4-position cylinder provides discrete mechanical stops at 0 mm (fully retracted), 5 mm, 50 mm, and 55 mm (fully extended). The positions are achieved by pressurizing the 5 mm section, the 50 mm section, or both simultaneously.
The SCT tandem design integrates two piston sections on a single common rod, guaranteeing fixed, repeatable intermediate positions without the need for external brackets, couplings, or aligning two separate cylinder bodies. This saves space and simplifies the pneumatic circuit.
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