Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 250mm give 4 controllable stop positions across a 300mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 150 mm
- Stroke 2250 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250
The SCT80X50X250 is an 80 mm bore tandem cylinder that delivers four fixed rod positions from its two independent piston sections: 0 mm (fully retracted), 50 mm, 250 mm, and the combined total travel of 300 mm. Each section generates a push force of 2513 N at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa, making it a robust solution for sequenced material handling. The unit uses a 25 mm diameter rod and PT3/8 ports, with a body length A of 296 mm.
This double-acting multi-position cylinder suits applications where a single actuator must reliably stop at two intermediate points without external hard stops. The 28 mm adjustable air cushion at each end helps manage end-of-stroke impact. As a genuine AirTAC SCT unit, it offers a compact alternative to mounting two separate cylinders for two-step positioning tasks, simplifying the machine's pneumatic circuit and reducing alignment complexity.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 50 / 250 mm |
| Total travel | 300 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) | 50 mm |
| P2 (section 2) | 250 mm |
| P3 (both extended) | 300 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 SCT80X50X250
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×250 | 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 SCT80X50X250 Is Used
Two-Stage Sorting Gate
Operates a diverter gate with a partial-open position at 50 mm for small items and a full-open position at 300 mm for large packages, using two valve signals.
Sequential Part Feeding
Advances a pusher plate 50 mm to separate a single blank from a stack, then extends the full 300 mm to transfer it onto a conveyor, all from one cylinder body.
Two-Depth Clamping Fixture
Provides a 50 mm pre-clamp position to locate a workpiece, followed by a 250 mm high-force clamping stroke, eliminating the need for two separate actuators on the fixture.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250 the Right Cylinder?
Select the SCT80X50X250 when your process requires a short 50 mm advance and a longer 250 mm secondary stroke from one tie-rod assembly. For lighter loads, stepping down to the 63 mm bore reduces per-section push to 1559 N at 0.5 MPa; for higher thrust, the 100 mm bore provides 3927 N. A direct replacement must match the 80 mm bore, both 50 mm and 250 mm strokes, PT port thread, and basic mounting. Since the combined stroke reaches 300 mm, ensure the rod is adequately guided if the load applies a significant side force to prevent bending during full extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 250 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 SCT80X50X250 FAQ
It provides four distinct rod positions: 0 mm (fully retracted), 50 mm, 250 mm, and the combined total of 300 mm. These are achieved by pressurizing the first section, the second section, or both simultaneously.
Each of the two piston sections delivers 2513 N of push force and 2268 N of pull force when operated at 0.5 MPa. The maximum push force per section at 0.9 MPa is 4523 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCT Multi-Position Cylinders
Request a Quote for Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X250
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.