Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 63mm and 12mm give 4 controllable stop positions across a 75mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 163 mm
- Stroke 212 mm
- Total travel75 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S
The SCT63X63X12S is a double-acting, multi-position tandem cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 12 mm, 63 mm, and the combined total travel of 75 mm. By pressurizing its two 63 mm bore sections independently or together, you get simple, repeatable discrete stopping without complex servo controls. Each piston section generates a push force of 1559 N at 0.5 MPa, rising to 2805 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet, allowing easy mounting of CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel for end-of-stroke or intermediate position detection. It features a 20 mm diameter piston rod, M16x1.5 rod thread, PT1/4 ports, and a 28 mm adjustable air cushion in each section for smooth deceleration. The body length A(SCT) is 249 mm, making it a compact solution for multi-stop tasks with a 75 mm total envelope.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 63 / 12 mm |
| Total travel | 75 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) | 63 mm |
| P2 (section 2) | 12 mm |
| P3 (both extended) | 75 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 SCT63X63X12S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×63 | Stroke 1 (section 1) in mm. |
| ×12 | 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 SCT63X63X12S Is Used
Two-Stage Part Sorting
Use the 12 mm and 63 mm stops to divert parts into three separate lanes, with the 75 mm position acting as an extended reject or fourth sorting gate.
Multi-Depth Pressing
Achieve two distinct pressing depths (12 mm and 63 mm) in a single cycle, plus a full 75 mm retraction, for assembling components with different insertion requirements.
Staged Clamping Fixture
Control a clamp with a light-contact position at 12 mm for alignment, a full clamping force at 63 mm, and a safe retracted position, all verified by sensors on the magnet-equipped barrel.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X63X12S the Right Cylinder?
Choose the SCT tandem cylinder when an application needs up to four distinct, hard stops without the cost and programming of a servo axis. This 63 mm bore model, with its 1559 N push force per section at 0.5 MPa, is ideal for medium-duty sorting or diverting. If you require more force, stepping up to the 80 mm bore (2513 N push at 0.5 MPa) provides a significant thrust increase; for a lighter, more compact solution, the 50 mm bore (982 N push at 0.5 MPa) may suffice. For a direct replacement, match the 63 mm bore, both strokes of 63 mm and 12 mm, PT thread, basic mounting, and the -S magnet option to ensure sensor compatibility.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 63 + 12 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 SCT63X63X12S FAQ
This model provides four discrete positions: 0 mm (fully retracted), 12 mm (first section extended), 63 mm (second section extended), and 75 mm (both sections fully extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, it is designed to replace two separate cylinders with 63 mm and 12 mm strokes that previously operated in tandem. A direct replacement requires matching the 63 mm bore, both stroke lengths, PT1/4 ports, basic mounting, and the -S sensor magnet option to ensure full mechanical and control system compatibility.
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