Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 30mm give 4 controllable stop positions across a 80mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 230 mm
- Total travel80 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S
The SCT63X50X30S delivers four discrete rod positions—0 mm, 50 mm, 30 mm, and 80 mm total travel—from a single tie-rod body. Each 63 mm bore section provides 1559 N of push force at 0.5 MPa, rising to 2805 N at 0.9 MPa, making it a compact alternative to two separate actuators for sequenced stops.
A built-in magnet allows CMSG or DMSG sensors to clamp directly onto the barrel for non-contact position sensing at every stop. The 20 mm diameter rod and 28 mm air cushion at each end help manage deceleration, while the 249 mm body length A(SCT) keeps the assembly rigid in multi-stop feeding or diverting stations.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 30 mm |
| Total travel | 80 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, 28 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) | 50 mm |
| P2 (section 2) | 30 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SCT63X50X30S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×30 | 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 SCT63X50X30S Is Used
Four-Position Diverter Gate
Directs packages to four separate conveyor lanes by stopping the rod at 0 mm, 30 mm, 50 mm, and 80 mm, eliminating the need for two cylinders and a mechanical interlock.
Two-Depth Pressing Station
Performs a shallow 30 mm pre-press and a deeper 50 mm final press in one cycle, with the 0 mm and 80 mm positions used for part loading and ejection.
Multi-Stop Glue Dispensing
Positions a dispensing nozzle at four fixed heights above a pallet, applying adhesive beads at different Z-levels without reprogramming a servo axis.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X30S the Right Cylinder?
Choose the SCT63X50X30S when a process needs four fixed positions without the complexity of servo control. If the 1559 N push per section is too light, stepping up to the 80 mm bore provides 2513 N at the same pressure; if it is more force than needed, the 50 mm bore delivers 982 N. Both section strokes are standard, so lead time is typical.
For replacement, match the 63 mm bore, both 50 mm and 30 mm strokes, PT port thread, and the -S magnet option. The basic mounting style means no brackets are included, so verify your existing FA, FB, CA, CB, or LB mounts are reused or ordered separately. Because the total travel is 80 mm, rod side-loading is minimal in a well-aligned setup.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 30 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 SCT63X50X30S FAQ
This tandem cylinder provides four distinct rod positions: fully retracted (0 mm), first section extended (50 mm), second section extended (30 mm), and both sections extended for the total travel of 80 mm. The positions are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it is designed to replace two individually mounted cylinders that were sequenced for three or four positions. You must match the 63 mm bore, both 50 mm and 30 mm strokes, PT port thread, and the -S magnet option. The tie-rod body mounts with the same SCT accessory brackets (FA, FB, CA, CB, LB), saving space and simplifying plumbing.
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