Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 300mm give 4 controllable stop positions across a 400mm total travel, with a Ø40mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Stroke 1100 mm
- Stroke 2300 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S
The AirTAC SCT40X100X300S is a tandem multi-position cylinder that provides four fixed rod positions: 0 mm (fully retracted), 100 mm, 300 mm, and 400 mm (total travel). Each 40 mm bore piston section delivers 628 N of push force at 0.5 MPa, making it a compact solution for diverting or sorting tasks that need more than two end stops. The built-in magnet (S suffix) allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position feedback.
This double-acting cylinder uses a 16 mm diameter rod with M12x1.25 threads and PT1/4 ports. With a 21 mm adjustable air cushion at each end section, it decelerates the load smoothly even at speeds up to 800 mm/s. The body length A(SCT) is 235 mm plus the strokes, keeping the envelope predictable for machine layout. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke 1 / Stroke 2 | 100 / 300 mm |
| Total travel | 400 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) | 100 mm |
| P2 (section 2) | 300 mm |
| P3 (both extended) | 400 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 SCT40X100X300S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm (SCT range 32–100). |
| ×100 | Stroke 1 (section 1) in mm. |
| ×300 | 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 SCT40X100X300S Is Used
Multi-Stop Diverter Gate
Use the four positions (0, 100, 300, 400 mm) to route packages or parts to three different conveyor lanes. The magnet sensors confirm each stop position before the next belt section activates.
Two-Depth Pressing or Staking
Achieve a shallow press at the 100 mm stop and a deeper press at the 300 mm stop in one cycle. The 628 N per-section force at 0.5 MPa handles light assembly insertion or staking operations.
Sequential Part Feeding
Advance a workpiece through three distinct stations (100, 300, and 400 mm) on a linear slide. The tandem cylinder eliminates the need for two separate actuators and their mounting brackets.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT40X100X300S the Right Cylinder?
Choose the SCT when your application needs three or four discrete mechanical stops without the complexity of servo control or multiple single cylinders. This 40 mm bore model suits moderate thrust tasks; if you need more force, stepping up to the 50 mm bore SCT50 series provides 982 N of push per section at the same 0.5 MPa. For a lighter load, the 32 mm bore SCT32 offers 402 N push.
To replace this exact model, match the 40 mm bore, both strokes (100 mm and 300 mm), the PT port thread, and the built-in magnet (S suffix). Since the second stroke is 300 mm, consider external guiding or a rod support if the load applies significant side force, as the long combined extension can amplify rod deflection.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 100 + 300 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 SCT40X100X300S FAQ
It provides four discrete mechanical stop positions: 0 mm (fully retracted), 100 mm (first section extended), 300 mm (second section extended), and 400 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely variable.
Yes, in many cases. The SCT40X100X300S integrates two piston sections on one common rod, giving you three or four stops from a single compact unit. Ensure the replacement matches the 40 mm bore, both 100 mm and 300 mm strokes, the PT port thread, and the built-in magnet (S suffix) for sensor compatibility.
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