Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 65mm give 4 controllable stop positions across a 365mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1300 mm
- Stroke 265 mm
- Total travel365 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S
The SCT80X300X65S is an 80 mm bore multi-position pneumatic cylinder that delivers four fixed rod positions from its tandem piston layout: 0 mm (fully retracted), 65 mm, 300 mm, and the combined total travel of 365 mm. Each actuated piston section provides a robust push force of 2513 N at 0.5 MPa, scaling up to 4523 N at the maximum operating pressure of 0.9 MPa, making it a powerful solution for sequenced material handling.
This model features a built-in magnet, allowing easy attachment of CMSG, DMSG, or EMSG sensors directly to the tie-rod barrel for non-contact position sensing. The 25 mm diameter rod and PT3/8 ports handle high flow, while the 28 mm adjustable air cushion at each end section decelerates the load smoothly. The body length A(SCT) is 296 mm plus the strokes.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 300 / 65 mm |
| Total travel | 365 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| 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, 28 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) | 300 mm |
| P2 (section 2) | 65 mm |
| P3 (both extended) | 365 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SCT80X300X65S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×300 | 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 SCT80X300X65S Is Used
Two-Stage Sorting Gate
Divert packages to three separate lanes using the 65 mm and 300 mm stop positions for a compact sorting station.
Multi-Depth Clamping
Clamp workpieces of two different thicknesses in one fixture, using the 65 mm position for thin parts and 300 mm for larger ones.
Sequential Part Feeding
Feed components in a two-step sequence: a 65 mm push to separate a part from a stack, followed by a full 365 mm stroke to place it.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X300X65S the Right Cylinder?
Choosing this SCT configuration replaces the complexity of two separate 80 mm bore cylinders and external hard stops, giving you a single, compact assembly with four precise stopping points. If your application needs less force, the 63 mm bore SCT offers 1559 N of push per section at 0.5 MPa. For a direct replacement, match the 80 mm bore, the 300 mm and 65 mm stroke sections, the PT port thread, and the integrated magnet sensor option. With a 300 mm stroke on the first section, ensure the load is guided or supported to prevent excessive side-loading and rod deflection during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 300 + 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 SCT80X300X65S FAQ
This tandem cylinder provides four discrete mechanical stops at 0 mm, 65 mm, 300 mm, and the total extended length of 365 mm. These are fixed positions selected by pressurizing the two piston sections independently or together.
Yes, it is designed to replace a two-cylinder setup. Ensure the replacement matches the 80 mm bore, the specific 300 mm and 65 mm strokes, the PT3/8 ports, and the built-in magnet (S suffix). The tie-rod construction and basic mounting must also align with your machine layout.
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