Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 400mm and 200mm give 4 controllable stop positions across a 600mm total travel, with a Ø50mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Stroke 1400 mm
- Stroke 2200 mm
- Total travel600 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S
The SCT50X400X200S is a double-acting multi-position tandem cylinder that delivers four discrete rod stops: 0 mm (fully retracted), 200 mm, 400 mm, and 600 mm (total travel). Each 50 mm bore piston section generates 982 N of push force at 0.5 MPa, rising to 1767 N at the maximum operating pressure of 0.9 MPa, making it suitable for sequenced material handling and sorting tasks.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for non-contact position feedback. The cylinder features a 20 mm diameter piston rod, M16x1.5 rod thread, PT1/4 ports, and a 21 mm adjustable air cushion at each end to decelerate the load smoothly. The body length A(SCT) is 243 mm plus the two strokes.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke 1 / Stroke 2 | 400 / 200 mm |
| Total travel | 600 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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) | 400 mm |
| P2 (section 2) | 200 mm |
| P3 (both extended) | 600 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCT50X400X200S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm (SCT range 32–100). |
| ×400 | Stroke 1 (section 1) in mm. |
| ×200 | 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 SCT50X400X200S Is Used
Two-Depth Part Insertion
Uses the 200 mm and 400 mm stops to insert components to two distinct depths in a single cycle, such as pressing a bushing then a seal into a housing.
Multi-Stop Diverter Gate
Positions a diverter gate at 0 mm, 200 mm, 400 mm, or 600 mm to sort packages or materials onto four different conveyor lanes from one feed point.
Sequential Clamping Station
Applies a light clamp at 400 mm, then a full-pressure clamp at 600 mm total travel, with sensor confirmation at each position via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT50X400X200S the Right Cylinder?
Choose the SCT50X400X200S when your application requires four fixed stopping points without the complexity of servo controls or multiple separate actuators. The 400 mm and 200 mm stroke sections provide an asymmetric position set ideal for two-depth pressing or multi-stage ejection. If higher force is needed, consider stepping up to the 63 mm bore SCT, which provides 1559 N of push per section at 0.5 MPa. For a direct replacement, match the 50 mm bore, both 400 mm and 200 mm strokes, PT port thread, basic mounting, and the -S magnet option.
With a 400 mm section stroke, ensure the rod is adequately guided if significant side loads are present, as long unsupported extensions can cause rod bending or premature seal wear. A linear guide or rod support may be required for stable operation at full extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 400 + 200 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 SCT50X400X200S FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 200 mm, 400 mm, and 600 mm (the sum of both strokes). The positions are achieved by pressurising the 200 mm section, the 400 mm section, or both sections together.
Yes, the SCT50X400X200S consolidates two fixed-stop motions into one compact tandem unit, reducing mounting hardware and alignment complexity. A direct replacement requires matching the 50 mm bore, both 400 mm and 200 mm strokes, PT ports, and the -S magnet option for sensor compatibility.
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