Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500 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 SCT63X50X500
The SCT63X50X500 is a tie-rod tandem cylinder that delivers four fixed rod positions by combining a 50 mm stroke in the first section with a 500 mm stroke in the second. The reachable stops are 0 mm (fully retracted), 50 mm, 500 mm, and the full 550 mm total travel. Each piston section generates 1559 N of push force at 0.5 MPa, driven through a 20 mm diameter hard-chrome rod.
With a 28 mm air cushion at each end and a body length A of 249 mm, the cylinder decelerates loads smoothly without external shock absorbers. The standard PT1/4 ports and M16x1.5 rod thread simplify pneumatic connections, while the TPU seals support a -20 to +70 °C operating range. This genuine AirTAC unit is ideal for sequencing two distinct work positions with a single compact actuator.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500 |
|---|---|
| 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 SCT63X50X500
| 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 SCT63X50X500 Is Used
Two-Depth Pressing
Operates a press tool to a light-contact 50 mm position for alignment, then extends fully to 550 mm for the high-force forming stroke, all controlled by two valve signals.
Dual-Stop Gate Actuation
Moves a material gate to a partial-open position at 500 mm for small parts and a full-open position at 550 mm for large components, eliminating the need for two separate actuators.
Long-Reach Sorting
Extends a diverter arm to a 500 mm mid-point for one lane and the full 550 mm for a second lane, using the 50 mm retract step to clear the product stream between cycles.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X50X500 the Right Cylinder?
Choose the SCT63X50X500 when your process needs two precise, repeatable forward positions—such as a shallow engage and a deep push—without the complexity of two separate cylinders and a manifold. The 50 mm section handles the initial advance, while the 500 mm section provides the long travel, all on one rod line. If you require higher thrust, stepping up to the SCT80 bore provides 2513 N per section at 0.5 MPa; for a lighter load, the SCT50 bore offers 982 N.
For direct replacement, match the 63 mm bore, both the 50 mm and 500 mm strokes, PT port thread, and basic mounting. Because the 500 mm stroke section is at the standard limit, ensure the rod is adequately guided if the load is offset; a rigid external guide or rod-alignment coupler prevents side-load binding on the long extension.
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 SCT63X50X500 FAQ
It provides four discrete rod positions: 0 mm (fully retracted), 50 mm (section 1 extended), 500 mm (section 2 extended), and 550 mm (both sections extended). The stops are fixed by the two stroke lengths and are selected by pressurising the appropriate cylinder ports.
Yes, if your application currently uses one SC63x50 and one SC63x500 mounted in series. The SCT63X50X500 integrates both strokes onto a single common rod, ensuring the 50 mm and 500 mm positions are always coaxial. Ensure the replacement matches your PT port thread and basic mounting style.
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