Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 2mm give 4 controllable stop positions across a 52mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 150 mm
- Stroke 22 mm
- Total travel52 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2
The SCT100X50X2 tandem cylinder combines two piston sections on a single 25 mm rod to produce four fixed stop positions: 0 mm (fully retracted), 2 mm, 50 mm, and 52 mm (total travel). Each 100 mm bore section generates 3927 N of push force at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, making it suitable for heavy-duty applications that require a very short precision stroke alongside a standard 50 mm travel.
This tie-rod cylinder body measures 308 mm in length (A dimension) and features a 29 mm air cushion at each end for smooth deceleration. The PT1/2 ports and M20x1.5 rod thread provide robust connections for high-flow pneumatic circuits. It is a genuine AirTAC SCT unit built for reliable multi-stop actuation in industrial automation.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 50 / 2 mm |
| Total travel | 52 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) | 2 mm |
| P3 (both extended) | 52 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 SCT100X50X2
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×2 | 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 SCT100X50X2 Is Used
Two-Stage Precision Pressing
Uses the 2 mm stroke for a delicate initial contact or pre-load, followed by the 50 mm stroke for the main pressing operation, all from one compact tandem cylinder.
Dual-Position Part Stops
Provides two distinct stop heights (2 mm and 50 mm) on a conveyor line to sort or separate parts based on height, eliminating the need for two separate stop cylinders.
Micro-Adjust Clamping
The 2 mm stroke section allows for a precise, low-force clamping or locating movement before the 50 mm section engages for full-power holding, protecting delicate workpieces.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X50X2 the Right Cylinder?
Select the SCT100X50X2 when a single actuator must deliver two distinct, repeatable advance lengths without the complexity of two separate cylinders and external hard stops. The 2 mm stroke section provides a micro-advance, while the 50 mm section handles the main working stroke. If the 3927 N push force at 0.5 MPa is more than required, stepping down to an 80 mm bore (2513 N at 0.5 MPa) can reduce air consumption while still providing ample thrust. For replacement, match the 100 mm bore, both 50 mm and 2 mm strokes, PT port thread, and basic mounting configuration. Note that the 25 mm rod is robust, but for strokes exceeding 300 mm, external guides are recommended to manage side loads and prevent rod bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 2 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 SCT100X50X2 FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 2 mm (first section extended), 50 mm (second section extended), and 52 mm (both sections extended for total travel). The positions are selected by pressurizing the appropriate cylinder sections.
The SCT100X50X2 integrates two strokes into one compact, in-line body, saving space and simplifying mounting compared to two separate SC100 cylinders. It also ensures perfect axial alignment between the two strokes, which is difficult to achieve with separate units. Replacement must match the 100 mm bore, both 50 mm and 2 mm strokes, and PT port thread.
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