Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 200mm and 20mm give 4 controllable stop positions across a 220mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1200 mm
- Stroke 220 mm
- Total travel220 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S
The AirTAC SCT63X200X20S is a double-acting multi-position tandem cylinder that delivers four fixed rod positions: 0 mm (fully retracted), 20 mm, 200 mm, and the combined total travel of 220 mm. Each 63 mm bore piston section generates 1559 N of push force at 0.5 MPa, offering robust thrust for mid-range pneumatic tasks. The cylinder body has an A(SCT) length of 249 mm plus strokes, and the 20 mm diameter rod with M16x1.5 thread ensures stable guidance across the 220 mm total extension.
A built-in magnet is integrated into the piston, designated by the -S suffix, allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the tie-rod barrel for precise, non-contact position feedback at any of the four stops. With PT1/4 ports and a 28 mm air cushion at each end, this unit provides reliable deceleration. It is a genuine AirTAC component built for sequencing tasks where two distinct extension lengths are required from a single compact assembly.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 200 / 20 mm |
| Total travel | 220 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) | 200 mm |
| P2 (section 2) | 20 mm |
| P3 (both extended) | 220 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 SCT63X200X20S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×200 | Stroke 1 (section 1) in mm. |
| ×20 | 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 SCT63X200X20S Is Used
Two-Step Gauging Station
Uses the 20 mm stop for a contact probe approach and the 200 mm stroke for retraction, providing a fast-advance and fine-measure sequence in quality control fixtures.
Dual-Position Diverter Gate
Positions a diverter chute at 20 mm for one product lane and 200 mm for a second lane, with the 0 mm home position acting as a third bypass route.
Selective Part Ejection
Extends a pusher to 20 mm to eject a rejected part into a first bin, or to the full 220 mm to place an accepted part onto a separate conveyor, controlled by sensor-confirmed stops.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X200X20S the Right Cylinder?
Select the SCT63X200X20S when your application needs a long primary stroke of 200 mm and a short secondary positioning step of 20 mm, eliminating the complexity of two separate cylinders and their mounting hardware. If the 1559 N push force at 0.5 MPa is more than needed, stepping down to a 50 mm bore SCT reduces per-section force to 982 N, saving space and air consumption. For higher thrust, the 80 mm bore version provides 2513 N per section. This cylinder is a direct replacement for an existing AirTAC SCT63X200X20S with a magnet; ensure the replacement matches the 200 mm and 20 mm strokes, PT ports, and basic mounting. Given the 200 mm stroke on the first section, ensure the load is guided or supported to prevent excessive side-loading and rod bending during extension.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 200 + 20 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 SCT63X200X20S FAQ
This tandem cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 20 mm (section 2 extended), 200 mm (section 1 extended), and 220 mm (both sections extended, which is the total travel). The stops are fixed by the cylinder's internal structure and are not infinitely adjustable.
Yes, it is designed to replace a two-cylinder setup for two-position sequencing, saving space and simplifying plumbing. A replacement must be an AirTAC SCT with a 63 mm bore, exactly 200 mm and 20 mm strokes, a built-in magnet (-S suffix), and PT ports. The mounting style must also match your current setup.
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