Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 2mm and 50mm give 4 controllable stop positions across a 52mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 12 mm
- Stroke 250 mm
- Total travel52 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S
The AirTAC SCT100X2X50S is a double-acting multi-position tandem cylinder providing four discrete rod stops: 0 mm (fully retracted), 2 mm, 50 mm, and 52 mm (total travel). Each piston section delivers a substantial 3927 N of push force at 0.5 MPa, making it suitable for heavy-duty applications requiring a short precision step and a longer secondary stroke. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for reliable end-of-stroke detection.
With a 100 mm bore, this tie-rod cylinder uses a 25 mm diameter rod and M20x1.5 rod thread, with PT1/2 ports. The adjustable pneumatic cushion at each end is 29 mm long, providing smooth deceleration. The body length A(SCT) is 308 mm. Operating on filtered air from 0.15 to 1.0 MPa, the thrust at the maximum operating pressure of 0.9 MPa reaches 7068 N per section.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 2 / 50 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) | 2 mm |
| P2 (section 2) | 50 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 SCT100X2X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×2 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT100X2X50S Is Used
Two-Stage Clamping & Feed
The 2 mm stroke performs a low-force sensing clamp or part locator pin engagement, followed by the 50 mm stroke to feed the clamped assembly into a press or machining station.
Heavy Part Sorting Gate
Uses the 2 mm position to nudge a part for alignment and the 50 mm position to fully divert it down a different conveyor lane, handling heavy loads with 3927 N of push force.
Dual-Depth Pressing Operation
Executes a primary 50 mm forming stroke, retracts to the 2 mm intermediate stop for a tool change or part rotation, and then advances again to the 52 mm total travel position for a final coining operation.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X2X50S the Right Cylinder?
Select the SCT100X2X50S when a single actuator must deliver two distinct, heavy-force strokes without the complexity of dual cylinders and external hard stops. The 2 mm stroke is ideal for a precise clamping or ejection function, while the 50 mm stroke handles the main transfer. If a higher force is needed, this is the largest standard SCT bore; for a lighter, more compact solution, consider stepping down to the SCT80 series, which provides 2513 N of push force per section at 0.5 MPa.
For a direct replacement, match the 100 mm bore, both the 2 mm and 50 mm strokes, PT port thread, and the -S magnet option. The basic mounting configuration allows direct integration into a custom fixture. As a long-stroke cylinder is not in play here, standard guiding is typically sufficient, but ensure the rod is not subjected to excessive side loads during the 50 mm extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 2 + 50 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 SCT100X2X50S FAQ
This 4-position cylinder provides discrete mechanical stops at 0 mm (fully retracted), 2 mm, 50 mm, and 52 mm (2 mm + 50 mm). The positions are achieved by pressurizing the first section, the second section, or both simultaneously.
Yes, it can replace a setup with two separate cylinders and external stops for a two-stroke sequence, saving space and simplifying plumbing. Ensure the replacement matches the 100 mm bore, the exact 2 mm and 50 mm strokes, PT port thread, and the -S magnet option for sensor compatibility.
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