Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 210mm and 210mm give 3 controllable stop positions across a 420mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1210 mm
- Stroke 2210 mm
- Total travel420 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210
The AirTAC SCT63X210X210 is a double-acting multi-position tandem cylinder that delivers three precise, repeatable stop positions along its 420 mm total stroke: fully retracted (0 mm), mid-extension (210 mm), and fully extended (420 mm). Each 63 mm bore piston section generates a push force of 1559 N at 0.5 MPa, scaling to 2805 N at the maximum operating pressure of 0.9 MPa, making it suitable for diverting or sorting tasks requiring consistent intermediate positioning.
Built on a rugged tie-rod design with a 20 mm diameter piston rod and M16x1.5 rod thread, this cylinder incorporates a 28 mm adjustable air cushion in each section for smooth deceleration. The body length A is 249 mm, and the standard PT1/4 ports ensure straightforward pneumatic integration. The default TPU seals provide reliable operation in ambient temperatures from -20 to +70 °C.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 210 / 210 mm |
| Total travel | 420 mm |
| Stop positions | 3 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 (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 210 mm |
| P2 (both extended) | 420 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 SCT63X210X210
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×210 | Stroke 1 (section 1) in mm. |
| ×210 | 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 SCT63X210X210 Is Used
3-Way Diverter Gate
Uses the three fixed positions (0, 210, 420 mm) to direct product flow on a conveyor to a reject, rework, or accept lane with high repeatability.
Two-Depth Pressing
Provides a partial stroke to 210 mm for a pre-forming operation and a full 420 mm stroke for final compaction, ensuring consistent part density at both stages.
Multi-Stop Part Transfer
Shuttles a workpiece between three distinct stations—load, process, and unload—on a linear transfer line using a single compact cylinder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X210X210 the Right Cylinder?
Select the SCT63X210X210 when your application needs a fixed three-position movement with a total travel of 420 mm, eliminating the complexity and cost of mounting two separate cylinders or adding external hard stops. If the 1559 N push force per section at 0.5 MPa is insufficient, stepping up to the 80 mm bore SCT80 series provides 2513 N of push force per section at the same pressure. For a direct replacement, match the 63 mm bore, both 210 mm section strokes, PT1/4 port thread, and basic mounting style.
With a section stroke of 210 mm, the rod is well-supported within standard guiding limits. However, if the load is applied with a significant side force or the cylinder is mounted horizontally with a heavy end-effector, incorporating an external guide rail is recommended to prevent rod bending and ensure long seal life.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 210 + 210 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 SCT63X210X210 FAQ
This model provides three distinct mechanical stop positions because both section strokes are equal at 210 mm. The rod end can be reliably positioned at 0 mm (fully retracted), 210 mm (mid-stroke), and 420 mm (fully extended).
Yes, it is a direct functional replacement for two 63 mm bore cylinders with 210 mm strokes mounted in series to achieve a three-position movement. Ensure the replacement matches the PT1/4 port thread and basic mounting. The tandem design simplifies plumbing and alignment.
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