Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 30mm and 50mm give 4 controllable stop positions across a 80mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 130 mm
- Stroke 250 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S
The SCT40X30X50S tandem cylinder delivers four discrete rod positions—0 mm, 30 mm, 50 mm, and 80 mm total travel—from a single compact unit with a built-in magnet for sensor mounting. Each 40 mm bore section provides 628 N of push force at 0.5 MPa, driven by a 16 mm diameter rod through PT1/4 ports.
With a body length A(SCT) of 235 mm and 21 mm of adjustable air cushion per end, this double-acting multi-position actuator simplifies sequencing tasks. The integrated magnet allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-position sensing without extra brackets.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 30 / 50 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) | 30 mm |
| P2 (section 2) | 50 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 SCT40X30X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×30 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT40X30X50S Is Used
Two-Stop Part Diverting
Direct packages to three separate lanes by extending the rod to 30 mm, 50 mm, or full 80 mm travel, each position triggering a different chute or conveyor path.
Multi-Depth Press Insertion
Insert bushings or pins at two controlled depths in one cycle. The 30 mm stroke sets the first depth, and pressurizing the second section advances to the 50 mm stop for a deeper set.
Staged Clamping Fixture
Apply a light 30 mm pre-clamp to align a delicate part, then engage the full 80 mm travel for high-force holding, using the magnet sensors to confirm each clamp stage before machining.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X30X50S the Right Cylinder?
This 4-position unit replaces complex setups using two separate cylinders and external stops, reducing mounting points and alignment work. For higher thrust, consider stepping up to the 50 mm bore SCT50 series, which delivers 982 N push per section at 0.5 MPa. A direct replacement must match the 40 mm bore, both the 30 mm and 50 mm section strokes, PT port thread, basic mounting, and the -S magnet option to retain sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 30 + 50 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 SCT40X30X50S FAQ
It provides four distinct mechanical stops: fully retracted (0 mm), first section extended (30 mm), second section extended (50 mm), and both sections extended for a total travel of 80 mm. The integrated magnet allows you to verify each position with a sensor.
Yes, in applications requiring two fixed intermediate stops. The SCT40X30X50S combines both strokes on one common rod line, eliminating the need to synchronize two separate cylinders and reducing overall envelope length. Ensure the replacement matches the 30 mm and 50 mm stroke combination.
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