Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 450mm and 80mm give 4 controllable stop positions across a 530mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1450 mm
- Stroke 280 mm
- Total travel530 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S
The AirTAC SCT63X450X80S is a tandem multi-position cylinder that delivers four discrete rod stops from two independent piston sections on a single axis. The reachable positions are precisely 0 mm (fully retracted), 450 mm (section one extended), 80 mm (section two extended), and 530 mm (both sections extended for total travel). Each 63 mm bore section generates a push force of 1559 N at 0.5 MPa, scaling up to 2805 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), allowing direct clamping of CMSG, DMSG, or EMSG sensors to the tie-rod barrel for non-contact position feedback. The 20 mm diameter piston rod, M16x1.5 rod-end thread, and 28 mm adjustable air cushion at each end cap provide robust deceleration for the long 450 mm primary stroke. The body length A(SCT) is 249 mm plus the strokes, and the PT1/4 ports make pneumatic plumbing straightforward.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 450 / 80 mm |
| Total travel | 530 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) | 450 mm |
| P2 (section 2) | 80 mm |
| P3 (both extended) | 530 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 SCT63X450X80S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×450 | Stroke 1 (section 1) in mm. |
| ×80 | 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 SCT63X450X80S Is Used
Two-Stage Part Transfer
A long 450 mm stroke moves a component from a pick point to an intermediate position, and a final 80 mm stroke places it precisely into a nest or fixture, using the four discrete stops for reliable positioning.
Multi-Lane Diverter Gate
Controls a diverter gate with four positions: home (0 mm), lane one (80 mm), lane two (450 mm), and a bypass lane (530 mm). The built-in magnet provides sensor confirmation at each stop.
Dual-Depth Pressing or Staking
Performs a rapid 80 mm approach stroke followed by a controlled 450 mm high-force pressing stroke. The cylinder provides fixed mechanical stops at both depths for consistent process control.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X450X80S the Right Cylinder?
Select the SCT63X450X80S when an application requires a long primary advance of 450 mm and a shorter secondary positioning stroke of 80 mm without the complexity of two separate actuators. This tandem unit is more compact and eliminates the need to synchronize two cylinders and their external stops. If a higher force per section is needed, step up to the 80 mm bore SCT80, which provides 2513 N of push at 0.5 MPa. For a lower force class, the 50 mm bore SCT50 delivers 982 N.
To replace this exact model, match the 63 mm bore, both strokes (450 mm and 80 mm), the PT port thread, the basic mounting configuration, and the integrated magnet (-S). Because the 450 mm stroke section is long, ensure the external load is guided to prevent side-loading and rod bending, especially when the rod is fully extended to the 530 mm total travel position.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 450 + 80 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 SCT63X450X80S FAQ
This 4-position cylinder provides stops at 0 mm (fully retracted), 450 mm (first section extended), 80 mm (second section extended), and 530 mm (both sections extended for full travel). The positions are fixed by the two stroke lengths and are selected by pressurizing the appropriate cylinder sections.
The force is generated per actuated piston section, not combined. Each 63 mm bore section provides 1559 N of push force at 0.5 MPa and 1402 N of pull force. The force does not double when both sections are pressurized; the cylinder simply moves to the 530 mm total travel position with the same single-section thrust.
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