Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 100mm and 100mm give 3 controllable stop positions across a 200mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1100 mm
- Stroke 2100 mm
- Total travel200 mm
- Positions3 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S
The SCT63X100X100S is a double-acting multi-position cylinder that delivers three fixed rod positions—fully retracted (0 mm), mid-stroke (100 mm), and fully extended (200 mm)—by controlling two 100 mm piston sections in a single tie-rod body. Each section generates 1559 N of push force at 0.5 MPa (2805 N at 0.9 MPa), driven through a 20 mm diameter rod with PT1/4 ports and a 28 mm adjustable air cushion for end-of-stroke deceleration.
The built-in magnet (denoted by the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors on the barrel for non-contact position feedback, making this unit ready for automated sequencing without external brackets. With a body length A(SCT) of 249 mm, it fits into compact multi-stop fixtures where two separate cylinders would consume more space and require complex valve logic.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 100 / 100 mm |
| Total travel | 200 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) | 100 mm |
| P2 (both extended) | 200 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 SCT63X100X100S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×100 | 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 SCT63X100X100S Is Used
Two-Way Diverter Gate
The three positions (0, 100, 200 mm) route product to a bypass lane at mid-stroke or to a reject bin at full extension, with sensors confirming each gate position via the integrated magnet.
Two-Depth Press or Stake
Actuate one section for a light 100 mm pre-press depth, then both sections for the full 200 mm final press stroke—each depth is mechanically fixed for consistent part quality.
Multi-Stop Part Transfer
In a pick-and-place slide, the rod stops at 100 mm for part pickup and 200 mm for placement, eliminating the need for two separate short-stroke cylinders and simplifying the pneumatic circuit.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X100X100S the Right Cylinder?
Choose this 3-position tandem cylinder when a load must index to a midpoint and a full-extend point with repeatable mechanical stops, such as in a two-stage pusher or diverter gate. If your application needs lower force, the 50 mm bore SCT50X100X100 provides 982 N push per section; for higher force, the 80 mm bore SCT80X100X100 delivers 2513 N per section at the same 0.5 MPa. For drop-in replacement, match the 63 mm bore, both 100 mm strokes, PT port thread, and the -S magnet option—the mounting style is basic, so verify your fixture uses the cylinder body directly. With a 100 mm stroke per section, rod bending is rarely a concern, but always align the load axially to prevent side-load wear on the rod bearing.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 100 + 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 SCT63X100X100S FAQ
Because both strokes are equal (100 mm), this model provides 3 discrete mechanical stop positions: 0 mm (fully retracted), 100 mm (one section extended), and 200 mm (both sections extended). Pressurising the rear section extends to 100 mm; pressurising both extends to 200 mm.
Yes, if your sequence requires a 100 mm and a 200 mm stop on the same rod axis. The SCT tandem cylinder mounts in a single footprint (body length 249 mm) and uses one rod, reducing alignment complexity compared to two separate cylinders. Ensure your replacement matches the 63 mm bore, both 100 mm strokes, PT1/4 ports, and the -S magnet if you need sensor feedback.
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