Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 100mm give 3 controllable stop positions across a 200mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 2100 mm
- Total travel200 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100
The SCT40X100X100 is a double-acting multi-position tandem cylinder that delivers three distinct rod positions: fully retracted (0 mm), 100 mm, and the full 200 mm total travel. By pressurising either the first or second piston section individually, or both simultaneously, the cylinder stops precisely at these fixed mechanical points without needing external hard stops or complex servo control.
Each of the two 40 mm bore sections generates a push force of 628 N at 0.5 MPa (1130 N at 0.9 MPa), while the 16 mm diameter rod and 21 mm adjustable air cushion ensure smooth deceleration at every stop. The tie-rod body construction has an overall length A of 235 mm, making it a compact solution for multi-stop linear tasks where a single standard cylinder would fall short.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 100 mm |
| Total travel | 200 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 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) | 100 mm |
| P2 (both extended) | 200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 Is Used
Two-Position Diverter Gate
Use the 100 mm and 200 mm extended positions to route packages or parts down two different conveyor lanes from a single infeed point, simplifying line design.
Two-Depth Press or Clamp
Achieve a partial clamp at the 100 mm stroke for alignment and a full-power press at the 200 mm total stroke, all with one compact actuator.
Staged Part Ejection
Eject a component to an intermediate inspection station at 100 mm, then advance to the full 200 mm position to drop it into a reject or pass bin based on the inspection result.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 the Right Cylinder?
Choose the SCT tandem cylinder when your application needs two or three fixed stop positions along a single linear axis, eliminating the cost and complexity of mounting two separate cylinders back-to-back. This 40 mm bore model suits medium-force tasks; if you need more thrust, consider stepping up to the 50 mm bore SCT which provides 982 N of push per section at the same 0.5 MPa pressure. For lighter, faster cycles, the 32 mm bore version offers 402 N per section.
As a direct replacement, match the bore, both 100 mm strokes, and PT port thread. This basic configuration has no magnet or mounting brackets, so ensure your existing setup uses the same tie-rod body mount or order the required FA, FB, CA, CB, or LB accessory kit separately. Since each stroke is under 300 mm, rod side-loading is typically not a concern in a well-aligned installation.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 100 + 100 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 SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X100 FAQ
It provides three distinct mechanical stop positions because both piston sections have an identical 100 mm stroke. The rod positions are 0 mm (fully retracted), 100 mm (one section extended), and 200 mm (both sections extended for total travel).
Yes, if your goal is to achieve two fixed extension points along the same axis. The SCT tandem cylinder does this with a single rod and body, reducing mounting hardware and alignment effort. Ensure the per-section force of 628 N at 0.5 MPa meets your load requirements at each stop, as the force does not double when both sections are pressurised.
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