Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 20mm give 4 controllable stop positions across a 80mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 160 mm
- Stroke 220 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20
The AirTAC SCT40X60X20 tandem cylinder provides four fixed rod positions—0 mm, 60 mm, 20 mm, and the combined 80 mm total travel—by pressurising its two piston sections independently or together. This 40 mm bore unit uses a 16 mm diameter rod and delivers approximately 628 N of push force per section at 0.5 MPa, rising to 1130 N at the maximum operating pressure of 0.9 MPa.
With a body length A(SCT) of 235 mm and a 21 mm adjustable air cushion on each end, the cylinder decelerates the load smoothly at every stop. The standard PT1/4 ports and M12x1.25 rod thread make it a direct fit for common pneumatic circuits, while the TPU seals suit ambient temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 60 / 20 mm |
| Total travel | 80 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) | 60 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 80 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 SCT40X60X20
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT40X60X20 Is Used
Two-Lane Diverter Gate
A compact conveyor diverter uses the four discrete positions to guide packages into two separate lanes, with the 60 mm and 20 mm strokes defining the gate angles precisely.
Multi-Depth Label Press
The cylinder applies labels at two different insertion depths (60 mm and 20 mm) on a single part, then retracts fully, eliminating the need for a secondary press station.
Staged Component Feed
A pick-and-place shuttle advances a part first by 60 mm for an inspection step, then by an additional 20 mm for a reject blow-off, using all four stops for a clean sequence.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X60X20 the Right Cylinder?
Choose the SCT40X60X20 when your process needs a compact actuator to shuttle between four distinct positions without the complexity of two separate cylinders and external hard stops. If the 628 N push force per section at 0.5 MPa is marginal, stepping up to the 50 mm bore SCT50X60X20 provides 982 N per section for heavier tooling. For a direct replacement, match the 40 mm bore, both 60 mm and 20 mm strokes, PT port thread, and basic mounting style exactly.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 20 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 SCT40X60X20 FAQ
It provides four discrete rod positions: 0 mm (fully retracted), 60 mm (section 1 extended), 20 mm (section 2 extended), and 80 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in applications requiring two fixed intermediate stops. The SCT40X60X20 integrates both strokes into one tie-rod body, saving space and simplifying the pneumatic circuit. Ensure the replacement matches the 40 mm bore, 60 mm and 20 mm strokes, PT ports, and basic mounting.
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