Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 300mm and 100mm give 4 controllable stop positions across a 400mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1300 mm
- Stroke 2100 mm
- Total travel400 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100
The SCT63X300X100 tandem cylinder delivers four fixed rod positions for sequenced pneumatic workflows without complex servo controls. By pressurising either or both of its two piston sections, the rod locates precisely at 0 mm (retracted), 100 mm, 300 mm, or the full 400 mm total travel, using a 20 mm rod guided through a 249 mm body length.
Each 63 mm bore section generates 1559 N of push force at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa, with a 28 mm air cushion at each end to decelerate payloads. The PT1/4 ports and M16x1.5 rod thread integrate into standard AirTAC mounting accessories, making this a robust, tie-rod design for multi-stop handling.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 300 / 100 mm |
| Total travel | 400 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) | 300 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 400 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 SCT63X300X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×300 | Stroke 1 (section 1) in mm. |
| ×100 | 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 SCT63X300X100 Is Used
Two-Depth Part Transfer
A pick-and-place unit uses the 100 mm stroke for a short lateral shift and the 300 mm stroke for a longer drop-off, giving four end-points from one compact actuator.
Multi-Stop Gate Control
Operates a diverter gate with three open positions (100, 300, 400 mm) and a closed position (0 mm), routing product to three separate lanes without multiple cylinders.
Staged Clamping or Pressing
Applies a 100 mm rapid-approach stroke followed by a 300 mm high-force pressing stroke, with the 2805 N at 0.9 MPa providing substantial thrust for forming or assembly.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X300X100 the Right Cylinder?
Choose the SCT63X300X100 when your process needs four distinct mechanical stops from a single rod axis, such as a 100 mm pick, a 300 mm place, and a 400 mm full-extend position. If the 1559 N per-section push force at 0.5 MPa is insufficient, stepping up to the 80 mm bore provides 2513 N per section; if it is oversized, the 50 mm bore offers 982 N per section. The 300 mm stroke section is long enough that side-load and rod bending should be evaluated—consider an external guide or rod-alignment coupler for offset loads.
For drop-in replacement, match an AirTAC SCT with a 63 mm bore, 300 mm first stroke, 100 mm second stroke, PT1/4 ports, and basic mounting. If your original unit has a magnet, flange, or clevis, specify the corresponding suffix (-S, FA/FB, CA/CB, or LB) to ensure full interchangeability.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 300 + 100 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 SCT63X300X100 FAQ
This tandem cylinder provides four discrete rod positions: 0 mm (fully retracted), 100 mm (second section extended), 300 mm (first section extended), and 400 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in applications requiring two fixed stroke lengths from a single rod line. It consolidates a 100 mm and a 300 mm stroke into one tie-rod body, saving space and eliminating the need to synchronise two separate actuators. Ensure the replacement matches the 63 mm bore, both strokes, PT1/4 ports, and any mounting or magnet suffix on your original unit.
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