Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 125mm give 4 controllable stop positions across a 225mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1100 mm
- Stroke 2125 mm
- Total travel225 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125
The SCT100X100X125 is a double-acting tandem cylinder providing four fixed rod positions: fully retracted (0 mm), 100 mm, 125 mm, and the total travel of 225 mm. Each piston section generates a push force of 3927 N at 0.5 MPa, with a 25 mm diameter rod and M20x1.5 rod thread for robust linear motion.
With a body length A(SCT) of 308 mm and a 29 mm adjustable air cushion, this 100 mm bore cylinder handles multi-stop tasks like two-depth pressing or three-gate diverting. The PT1/2 ports ensure ample flow, and the TPU seals operate reliably from -20 to +70 °C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 100 / 125 mm |
| Total travel | 225 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) | 100 mm |
| P2 (section 2) | 125 mm |
| P3 (both extended) | 225 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 SCT100X100X125
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×125 | 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 SCT100X100X125 Is Used
Two-Depth Pressing
Achieve a partial press at 100 mm for alignment and a full-depth press at 225 mm, with a neutral stop at 125 mm for part inspection between operations.
Multi-Gate Diverter
Control a three-position diverter gate on a conveyor, directing packages to lanes 1, 2, or 3 using the 0, 100, and 225 mm rod positions.
Staged Material Feed
Advance material in two unequal steps—first a 100 mm push, then a final 125 mm push—for precise indexing in a cut-to-length application.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X125 the Right Cylinder?
Select the SCT100X100X125 when a single actuator must deliver three distinct extension points without external hard stops. The 100 mm bore provides 3927 N of push per section at 0.5 MPa; if your force requirement is lower, consider stepping down to an 80 mm bore model, which offers 2513 N per section at the same pressure. This cylinder is a direct replacement only for another AirTAC SCT100X100X125 with matching PT ports and basic mounting. For strokes over 300 mm combined, evaluate the rod's column strength and consider an external guide to prevent side-load induced bending.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 125 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 SCT100X100X125 FAQ
This tandem cylinder provides 4 discrete stop positions: 0 mm (fully retracted), 100 mm, 125 mm, and the combined total of 225 mm. These are achieved by pressurizing either section individually or both together.
Each piston section delivers a push force of 3927 N at 0.5 MPa. The force does not double for a multi-position move; the 3927 N figure represents the thrust available from a single actuated section to move the load to the next stop.
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