Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 45mm and 45mm give 3 controllable stop positions across a 90mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 145 mm
- Stroke 245 mm
- Total travel90 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45
The SCT100X45X45 is a double-acting multi-position pneumatic cylinder that provides three fixed rod positions—fully retracted (0 mm), 45 mm, and 90 mm total travel—by pressurising its two tandem piston sections independently or together. Each 100 mm bore section 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.
The cylinder body has a total length A(SCT) of 308 mm and features an adjustable pneumatic cushion of 29 mm at each end for smooth deceleration. Standard PT 1/2 ports and an M20x1.5 rod thread ensure straightforward pneumatic connections. This model is built with tie-rod construction and comes with TPU seals for a standard operating temperature range of -20 to +70 °C.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 45 / 45 mm |
| Total travel | 90 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 45 mm |
| P2 (both extended) | 90 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 SCT100X45X45
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×45 | Stroke 1 (section 1) in mm. |
| ×45 | 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 SCT100X45X45 Is Used
Dual-Position Sorting Gate
The three discrete positions (0, 45, 90 mm) allow a single actuator to divert packages to two separate conveyor lanes, retracting fully for a third bypass lane.
Two-Depth Insertion Press
Achieve a partial insertion at the 45 mm stop and a full-depth press at the 90 mm total stroke, all with the high 3927 N force capability of the 100 mm bore.
Multi-Stop Clamping Fixture
Use the three rod positions to clamp workpieces of two different thicknesses without manual adjustment, leveraging the rigid 25 mm rod for stable holding.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X45X45 the Right Cylinder?
Selecting the SCT100X45X45 gives you three distinct mechanical stops from a single compact unit, eliminating the complexity and air consumption of two separate cylinders with external hard stops. If your force requirement is lower, stepping down to the 80 mm bore SCT reduces the per-section push force to 2513 N at 0.5 MPa, while a step up is not possible as 100 mm is the largest SCT bore. For a direct replacement, match the 100 mm bore, both 45 mm section strokes, PT 1/2 ports, and basic mounting style.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 45 + 45 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 SCT100X45X45 FAQ
This model provides 3 distinct mechanical stop positions because both piston sections have an equal 45 mm stroke. The rod positions are 0 mm (fully retracted), 45 mm (first section extended), and 90 mm (both sections extended for total travel).
Yes, if your application requires fixed stops at 45 mm and 90 mm. The tandem SCT design replaces two individual cylinders and their mounting hardware with a single unit, simplifying plumbing and control logic. Ensure the port size (PT 1/2) and mounting style match your machine.
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