Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 180mm and 180mm give 3 controllable stop positions across a 360mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1180 mm
- Stroke 2180 mm
- Total travel360 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180
The SCT40X180X180 is a tie-rod multi-position cylinder that delivers three fixed rod positions: fully retracted (0 mm), mid-stroke (180 mm), and full extension (360 mm). Each of its two 40 mm bore sections generates 628 N of push force at 0.5 MPa, making it suitable for sorting gates or two-stage clamping fixtures where intermediate and full-travel stops are needed.
With a 16 mm diameter piston rod and PT1/4 ports, this double-acting tandem unit uses an adjustable air cushion (21 mm length) to decelerate the load at both ends of the total stroke. The body length A is 235 mm, and the maximum per-section thrust reaches 1130 N at 0.9 MPa. It is not an ISO 15552 cylinder and does not lock its position when air pressure is removed.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 180 / 180 mm |
| Total travel | 360 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) | 180 mm |
| P2 (both extended) | 360 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 SCT40X180X180
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×180 | Stroke 1 (section 1) in mm. |
| ×180 | 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 SCT40X180X180 Is Used
3-Way Diverter Gate
The three positions (0, 180, 360 mm) allow a single chute to direct parts to a reject bin, a rework lane, or an accept conveyor in a compact inspection station.
Two-Stage Clamping
Extend to 180 mm for a low-force pre-clamp on a delicate assembly, then pressurize both sections to reach 360 mm for full clamping force on the next workpiece.
Dual-Depth Label Press
Apply a label at a shallow 180 mm stroke for a flat surface, then use the full 360 mm travel to wrap the label around a curved edge in a secondary pressing station.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X180X180 the Right Cylinder?
Choose the SCT40X180X180 when your application needs a compact, repeatable three-position actuator without the complexity of two separate cylinders and external hard stops. If you require higher force at the same stops, stepping up to a 50 mm bore provides 982 N of push per section at 0.5 MPa. For a drop-in replacement, match the 40 mm bore, both 180 mm strokes, PT port thread, and basic mounting.
With a section stroke of 180 mm, rod buckling is rarely a concern under axial loads, but if the rod is subjected to significant side forces, an external guide rail should be used to protect the rod bearing and seals.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 180 + 180 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 SCT40X180X180 FAQ
It provides three distinct mechanical stops: 0 mm (fully retracted), 180 mm (mid-stroke), and 360 mm (full extension). The two equal 180 mm strokes are combined to achieve the total travel.
Yes, if your sequence requires only the three fixed positions of 0, 180, and 360 mm. The SCT uses a common piston rod and body, saving space compared to mounting two separate cylinders with external brackets and alignment fixtures.
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