Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 75mm and 75mm give 3 controllable stop positions across a 150mm total travel, with a Ø100mm bore, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Stroke 175 mm
- Stroke 275 mm
- Total travel150 mm
- Positions3 stops
- Port sizePT1/2
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S
The SCT100X75X75S provides three fixed rod positions—0 mm, 75 mm, and 150 mm—by pressurising its two 100 mm bore sections independently or together. Each section delivers a push force of 3927 N at 0.5 MPa, making this tandem unit a space-efficient alternative to two separate cylinders for sequenced stopping tasks.
A built-in magnet allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for end-of-stroke or intermediate position confirmation. The 25 mm diameter rod and 29 mm adjustable air cushion manage deceleration effectively across the full 150 mm combined travel.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø100 mm |
| Stroke 1 / Stroke 2 | 75 / 75 mm |
| Total travel | 150 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 75 mm |
| P2 (both extended) | 150 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 SCT100X75X75S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm (SCT range 32–100). |
| ×75 | Stroke 1 (section 1) in mm. |
| ×75 | 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 SCT100X75X75S Is Used
Two-Position Sorting Gate
Diverts packages to two separate lanes using the 75 mm and 150 mm stops, with sensor confirmation at each position to prevent jams.
Multi-Depth Pressing
Applies a 3927 N pre-press at 75 mm followed by a full-depth forming stroke at 150 mm, ideal for progressive die operations.
Staged Part Feeding
Advances components in two 75 mm increments onto an indexing conveyor, using the magnet to verify each advance step before the next cycle.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT100X75X75S the Right Cylinder?
Choose the SCT100X75X75S when your application needs three distinct mechanical stops without the complexity of multiple actuators and external hard stops. If 3927 N of push force per section is insufficient, stepping up is not possible within the SCT range, as 100 mm is the maximum bore. For a direct replacement, match the 100 mm bore, both 75 mm strokes, PT ports, basic mounting, and the -S magnet option.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 75 + 75 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 SCT100X75X75S FAQ
Three distinct positions: fully retracted (0 mm), first section extended (75 mm), and both sections extended (150 mm). Because the two strokes are equal, the 75 mm and 150 mm stops are the only extended positions.
Yes, if you need fixed stops at 75 mm and 150 mm. The SCT100X75X75S provides the same 3927 N push force per section as a standard SC100X75, but in a single tandem body. Ensure your mounting and magnet sensor requirements match.
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