Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 65mm give 4 controllable stop positions across a 125mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 160 mm
- Stroke 265 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H
The SCT100X60X65H is a double-acting multi-position tandem cylinder engineered for applications requiring four fixed stop locations within a compact footprint. By pressurising its two piston sections independently or together, the rod extends to 0 mm (retracted), 60 mm, 65 mm, or 125 mm total travel. Each section delivers a robust 3927 N of push force at 0.5 MPa, supported by a rigid 25 mm diameter rod and a 29 mm adjustable air cushion for end-of-stroke deceleration.
This model is built with Viton (FKM) seals, designated by the 'H' suffix, which shifts the operating temperature range to 0 to +150 °C, making it suitable for hot or chemically aggressive environments where standard seals would degrade. The body length A(SCT) is 308 mm, and it uses PT1/2 port threads with an M20x1.5 rod thread. As a genuine AirTAC product, it provides reliable discrete positioning without the complexity of servo systems.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 60 / 65 mm |
| Total travel | 125 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) | 60 mm |
| P2 (section 2) | 65 mm |
| P3 (both extended) | 125 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 SCT100X60X65H
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×65 | 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 SCT100X60X65H Is Used
Two-Stage Part Diverting
Uses the 60 mm and 65 mm stroke positions to route parts to three different conveyor lanes from a single pick point, simplifying line design.
Multi-Depth Hot Press Insertion
With Viton seals for 150 °C tolerance, this cylinder sets two different insertion depths (60 mm and 125 mm) for installing components into a heated platen.
Sequential Gate Actuation
Controls a two-leaf gate by opening one leaf to 60 mm and the second to 65 mm, achieving a full 125 mm opening in two discrete, controlled steps.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X60X65H the Right Cylinder?
Choose the SCT tandem cylinder when your process needs two or more distinct, repeatable end-of-arm positions without electronic feedback. This 100 mm bore model is ideal for moving heavier tooling; if your load requires less force, stepping down to an 80 mm bore reduces per-section push to 2513 N at 0.5 MPa. For direct drop-in replacement, match the 100 mm bore, both the 60 mm and 65 mm strokes, PT port thread, and the basic mounting configuration. The Viton seal variant is critical to match if the original unit operates above 70 °C. With a combined stroke of 125 mm, rod bending is not a primary concern under axial loads, but always centre the load to avoid side-loading the 25 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 65 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 SCT100X60X65H FAQ
The rod achieves four fixed positions by pressurising different sections: 0 mm (both sections exhausted), 60 mm (section one pressurised), 65 mm (section two pressurised), and 125 mm (both sections pressurised for full travel).
Yes, it often can. The SCT100X60X65H provides two strokes from a single rod line, which saves mounting space and simplifies plumbing compared to two separate SC100 cylinders. Ensure the replacement matches the 100 mm bore, 60 mm and 65 mm strokes, PT ports, and the Viton seal material.
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