
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X25 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 150mm and 25mm give 4 controllable stop positions across a 175mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
The SCT80X150X25 is a double-acting, multi-position pneumatic cylinder that provides four distinct, repeatable rod positions: 0 mm (fully retracted), 25 mm, 150 mm, and 175 mm (total travel). Each piston section independently generates 2513 N of push force at 0.5 MPa, making it ideal for applications requiring two different intermediate stops without complex controls.
Built on an 80 mm bore with a 25 mm diameter rod and PT3/8 ports, this tie-rod cylinder features a 28 mm adjustable air cushion for smooth end-of-stroke deceleration. The body length A(SCT) is 296 mm. At the maximum operating pressure of 0.9 MPa, a single section delivers 4523 N of thrust.
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X150X25 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 150 / 25 mm |
| Total travel | 175 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.
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 150 mm |
| P2 (section 2) | 25 mm |
| P3 (both extended) | 175 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.
| 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.
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×150 | Stroke 1 (section 1) in mm. |
| ×25 | 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.
Executes a low-force 25 mm pre-clamp followed by a full 150 mm power stroke, protecting delicate parts before final fixturing.
Positions a gate at 25 mm for one lane and 150 mm for another, reliably sorting packages on a conveyor line.
Drives a tool to a 25 mm marking depth or a 150 mm forming depth, enabling two operations from one pneumatic station.
Choose the SCT80X150X25 when a process requires two distinct forward positions—such as a shallow 25 mm engagement and a deeper 150 mm push—from a single, compact actuator. This tandem unit replaces the need for two separate cylinders with external stops, saving space and simplifying pneumatic circuitry. If a higher force per section is needed, the SCT100 series provides 3927 N of push at 0.5 MPa. For replacement, match the 80 mm bore, both the 150 mm and 25 mm strokes, PT thread, and basic mounting configuration.
Multi-position checklist
It has four discrete mechanical stops: 0 mm (retracted), 25 mm, 150 mm, and 175 mm (fully extended). These are achieved by pressurizing the first section, the second section, or both simultaneously.
Yes, if your application requires strokes of 25 mm and 150 mm from the same rod axis. The SCT80X150X25 consolidates both movements into one tie-rod body, eliminating the need for dual mounting brackets and flow controls.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.