Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 300mm give 4 controllable stop positions across a 400mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 1100 mm
- Stroke 2300 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300
The SCT100X100X300 is a double-acting tandem cylinder that delivers four fixed rod positions: fully retracted (0 mm), 100 mm, 300 mm, and the combined total travel of 400 mm. Each piston section in the 100 mm bore generates a push force of 3927 N at 0.5 MPa, rising to 7068 N at the maximum operating pressure of 0.9 MPa, driven through a rigid 25 mm diameter rod.
Built with a tie-rod construction and a body length of 308 mm, this cylinder uses PT1/2 ports and an M20x1.5 rod thread. The adjustable pneumatic cushioning at both ends, with a 29 mm cushion length, decelerates the mass smoothly at each stop, making it suitable for heavy-duty material handling where specific intermediate positions are required without complex servo systems.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 100 / 300 mm |
| Total travel | 400 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) | 300 mm |
| P3 (both extended) | 400 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 SCT100X100X300
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT100X100X300 Is Used
Two-Stage Clamping
A 100 mm low-force approach stroke positions a clamp near a workpiece, followed by a 300 mm high-force stroke to secure it, preventing collision damage during rapid advance.
Dual-Position Diverter Gate
Operates a chute gate on a conveyor line to three distinct positions: closed (0 mm), diverting to lane A (100 mm), and diverting to lane B (400 mm), routing heavy packages.
Pallet Stop and Lift
A 100 mm stroke raises a stop pin to halt a heavy pallet, and a subsequent 300 mm stroke lifts the entire pallet off the conveyor for a robotic pick-and-place station.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X100X300 the Right Cylinder?
Selecting this SCT model is ideal when an application requires a short 100 mm advance for one operation and a longer 300 mm stroke for a secondary function, eliminating the need for two separate cylinders and their mounting hardware. If higher force is needed, no larger bore SCT exists, so consider external guiding or a different actuation method. For a lower force requirement, the SCT80 series provides 2513 N of push per section at 0.5 MPa. A direct replacement must match the 100 mm bore, both the 100 mm and 300 mm strokes, PT port threads, and the basic mounting configuration. As the 300 mm section stroke is significant, ensure the load is guided to prevent side-loading and rod bending during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 300 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 SCT100X100X300 FAQ
This tandem cylinder provides four discrete mechanical stops. The rod positions are 0 mm (fully retracted), 100 mm (first section extended), 300 mm (second section extended), and 400 mm (both sections extended for total travel).
The force is generated per actuated piston section. For the 100 mm bore, a single section provides 3927 N of push and 3681 N of pull at 0.5 MPa. The force does not double when both sections are pressurized; it remains the single-section value acting on the load.
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