Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 500mm give 4 controllable stop positions across a 550mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 150 mm
- Stroke 2500 mm
- Total travel550 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S
The SCT63X50X500S is a double-acting multi-position cylinder that delivers four fixed rod positions: 0 mm, 50 mm, 500 mm, and the total travel of 550 mm. Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, making it suitable for sequencing two distinct operations like a short clamp followed by a long feed in one compact unit. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for end-of-stroke or mid-position confirmation.
This tie-rod cylinder uses a 20 mm diameter rod with an M16x1.5 thread and PT1/4 ports. The adjustable air cushion on each section is 28 mm long, providing smooth deceleration at both intermediate and final stops. The body length A(SCT) is 249 mm plus the combined stroke, giving a total envelope that is far shorter than two separate cylinders with external stops.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 50 / 500 mm |
| Total travel | 550 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) | 500 mm |
| P3 (both extended) | 550 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 SCT63X50X500S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×500 | 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 SCT63X50X500S Is Used
Two-Stage Sorting Gate
Uses the 50 mm position for a partial gate opening to divert lightweight items and the full 550 mm stroke for heavy or oversized products, all controlled by a single valve manifold.
Dual-Depth Press Feed
Advances a stamping press feeder to a 50 mm pre-load position for thin stock, then extends to the full 550 mm for thick material, eliminating manual changeover between batches.
Multi-Stop Pallet Stop
Provides a 50 mm lift for pallet separation and a 500 mm lift for full pallet transfer on a conveyor line, with magnetic sensors confirming each discrete position.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500S the Right Cylinder?
Choose the SCT63X50X500S when you need a short initial position and a long second stroke without the complexity of mounting two individual actuators. If your force requirement is lower, stepping down to a 50 mm bore reduces per-section push to 982 N at 0.5 MPa; for heavier loads, the 80 mm bore provides 2513 N. The long 500 mm section stroke demands attention to side-loading—ensure the rod is guided externally if the load is not perfectly axial to prevent bending.
For direct replacement, match the 63 mm bore, both the 50 mm and 500 mm strokes, PT port thread, and the integrated magnet (-S suffix). This model uses a basic mount, so confirm your existing brackets or order FA/FB flanges or LB feet separately if panel or foot mounting is required.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 500 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 SCT63X50X500S FAQ
This tandem cylinder provides four discrete mechanical stops: fully retracted (0 mm), the first section extended (50 mm), the second section extended (500 mm), and both sections extended for the total travel of 550 mm. It does not offer infinitely variable positioning.
Yes, if your application requires a 50 mm and a 500 mm stroke in sequence. The SCT63X50X500S combines both actions on a single rod line, reducing mounting hardware and eliminating the need to synchronize two separate actuators. Ensure the replacement matches the PT port thread and the -S magnet option if sensors are used.
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