Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 40mm give 4 controllable stop positions across a 140mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 1100 mm
- Stroke 240 mm
- Total travel140 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH
The SCT80X100X40SH is a tandem multi-position cylinder that provides four distinct rod stops: fully retracted (0 mm), 40 mm, 100 mm, and a total extended travel of 140 mm. Each 80 mm bore section delivers a push force of 2513 N at 0.5 MPa, making it suitable for high-temperature sorting or diverting tasks where three intermediate positions are required.
This variant is built with Viton (FKM) seals, shifting the operating temperature range to 0–150 °C for hot-environment compatibility. A built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for position feedback. The cylinder uses a 25 mm diameter rod, PT3/8 ports, and has a 28 mm air cushion for smooth end-of-stroke deceleration.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 100 / 40 mm |
| Total travel | 140 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) | 100 mm |
| P2 (section 2) | 40 mm |
| P3 (both extended) | 140 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 SCT80X100X40SH
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×40 | 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 SCT80X100X40SH Is Used
Multi-Stop Diverter Gate
Positions a chute or diverter plate at retracted (0 mm), a 40 mm partial-open bypass, a 100 mm main feed position, or the full 140 mm extension for a fourth routing path.
Two-Depth Hot Press
With Viton seals for 150 °C operation, the cylinder provides a 40 mm pre-press depth and a 100 mm full-press depth in a heated platen application.
Staged Part Transfer
Executes a 40 mm lift, a 100 mm horizontal shift, or a combined 140 mm diagonal move to transfer parts between three conveyor heights in a single sequence.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X100X40SH the Right Cylinder?
Choose the SCT80X100X40SH when your process needs a single actuator to reliably hit four fixed positions—such as a 40 mm pre-stop and a 100 mm main stroke—without the complexity of dual cylinders. If your force requirement is lower, stepping down to a 63 mm bore reduces single-section push to 1559 N at 0.5 MPa; for higher thrust, a 100 mm bore provides 3927 N. This model is a direct replacement for any AirTAC SCT80X100X40SH with PT ports, basic mounting, and a magnet.
Given the 100 mm stroke on the first section, rod deflection is minimal, but for applications with significant side loading, ensure the tooling is guided externally to protect the rod bearing and seals.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 40 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 SCT80X100X40SH FAQ
This tandem cylinder reaches four discrete positions: 0 mm (fully retracted), 40 mm (second section extended), 100 mm (first section extended), and 140 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it integrates two strokes into one tie-rod body, saving space and simplifying plumbing. It is a direct form-and-function replacement for another AirTAC SCT80X100X40SH with the same Viton seal, PT port, and magnet configuration.
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