Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 60mm and 250mm give 4 controllable stop positions across a 310mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 160 mm
- Stroke 2250 mm
- Total travel310 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S
The SCT63X60X250S is a tandem multi-position cylinder that provides four fixed rod positions: fully retracted (0 mm), 60 mm, 250 mm, and the total extended travel of 310 mm. Each piston section generates a push force of 1559 N at 0.5 MPa, and the unit is equipped with a built-in magnet, allowing direct mounting of CMSG/DMSG/EMSG sensors for position feedback without external brackets.
This 63 mm bore cylinder uses a 20 mm diameter piston rod with an M16x1.5 thread and PT1/4 ports. The robust tie-rod construction incorporates a 28 mm adjustable air cushion in each section to decelerate the load reliably. The body length A(SCT) is 249 mm, providing a compact envelope for the combined stroke capability.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 60 / 250 mm |
| Total travel | 310 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) | 60 mm |
| P2 (section 2) | 250 mm |
| P3 (both extended) | 310 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 SCT63X60X250S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×60 | Stroke 1 (section 1) in mm. |
| ×250 | 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 SCT63X60X250S Is Used
Two-Stage Part Diverting
Uses the 60 mm stop for a partial gate opening and the 310 mm full travel to completely divert parts down a secondary chute, all controlled by two valve signals.
Multi-Depth Press Insertion
Achieves a precise 60 mm pre-insertion depth and a full 250 mm seating stroke for components, ensuring consistent assembly without servo control.
Sequential Pallet Stop
Acts as a two-position pallet stop on a conveyor, extending first to 60 mm to halt a pallet and then to 310 mm to release it after an operation is complete.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X60X250S the Right Cylinder?
Select this model when your application requires four distinct mechanical stops without the complexity of two separate cylinders and external hard stops. The 60 mm and 250 mm strokes are ideal for a two-stage feeding mechanism where a short precise move is followed by a longer transfer. If higher force is needed, consider stepping up to the SCT80 series, which provides 2513 N of push per section at 0.5 MPa.
For a direct replacement, match the 63 mm bore, the exact stroke combination of 60 mm and 250 mm, PT port thread, basic mounting, and the integrated magnet (-S suffix). Because the 250 mm section stroke is substantial, evaluate the rod bearing for side loads; external guides are recommended if the load is not perfectly axial to prevent rod bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 60 + 250 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 SCT63X60X250S FAQ
This tandem cylinder provides four distinct rod positions: 0 mm (fully retracted), 60 mm (first section extended), 250 mm (second section extended), and 310 mm (both sections extended, which is the sum of the two strokes).
Yes, if your sequence requires fixed 60 mm and 250 mm strokes. The SCT63X60X250S consolidates the motion into one tie-rod body, reducing mounting hardware and eliminating the need to align two separate cylinders. Ensure your replacement matches the PT ports, basic mount, and the -S magnet option if you use sensors.
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