Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 80mm and 30mm give 4 controllable stop positions across a 110mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 180 mm
- Stroke 230 mm
- Total travel110 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30
The SCT40X80X30 is a tandem multi-position cylinder that delivers four fixed rod positions by combining two piston sections on a common rod line. The reachable stops are 0 mm (fully retracted), 30 mm, 80 mm, and the total extended travel of 110 mm, selected by pressurising either section individually or both simultaneously.
Built on a tie-rod body with a 40 mm bore, each actuated section generates 628 N of push force at 0.5 MPa, rising to 1130 N at 0.9 MPa. The 16 mm diameter rod and 21 mm adjustable air cushion at each end provide reliable deceleration. The body length A(SCT) is 235 mm, and the standard PT1/4 ports keep plumbing straightforward.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 80 / 30 mm |
| Total travel | 110 mm |
| Stop positions | 4 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 (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 80 mm |
| P2 (section 2) | 30 mm |
| P3 (both extended) | 110 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 SCT40X80X30
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×80 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT40X80X30 Is Used
Two-Stage Sorting Gate
The 30 mm stroke diverts light items to a primary chute, while the full 110 mm extension reaches a secondary lane, enabling compact three-lane sorting from one actuator.
Dual-Depth Clamping
Apply a partial 30 mm stroke for thin workpieces, or extend to 80 mm or 110 mm for thicker assemblies, giving a single clamping station three preset grip depths.
Multi-Step Feeder
Use the 80 mm position to advance a component into a machining zone, then the 110 mm total travel for a secondary pressing or ejection stroke in an automated cell.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X80X30 the Right Cylinder?
This four-position configuration suits sequences where two unequal strokes must be combined for a third extended reach, avoiding the cost and complexity of two separate cylinders with external stops. If the 628 N per-section push at 0.5 MPa is insufficient, stepping up to the 50 mm bore SCT50X80X30 provides 982 N per section under the same pressure. For a direct replacement, match the 40 mm bore, both strokes (80 mm and 30 mm), PT port thread, and basic mounting style. If a section stroke exceeds 300 mm, consider external guiding to manage side loads and protect the rod bearing.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 80 + 30 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 SCT40X80X30 FAQ
It provides four discrete mechanical stops: 0 mm (retracted), 30 mm (stroke2 only), 80 mm (stroke1 only), and 110 mm (both strokes extended). These are fixed by the two section strokes and are not infinitely variable.
Yes, if the application requires the three extended positions 30, 80, and 110 mm. A direct replacement must match the 40 mm bore, both stroke lengths, PT1/4 ports, and basic mounting. The SCT consolidates the function into a single, aligned actuator body.
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