Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 22mm and 28mm give 4 controllable stop positions across a 50mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 122 mm
- Stroke 228 mm
- Total travel50 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28
The SCT32X22X28 is a tandem multi-position cylinder that delivers four fixed rod positions—0 mm, 22 mm, 28 mm, and the combined 50 mm total travel—by pressurizing two independent piston sections on a single rod line. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, making it a compact solution for light-duty diverting or sequencing where two separate cylinders would add bulk.
This tie-rod cylinder uses a 12 mm diameter rod with M10x1.25 threads and PT1/8 ports. Both strokes are non-standard lengths, built to order for applications that need exact, repeatable intermediate stops rather than continuous positioning. The body length A is 233 mm, and the adjustable air cushion at each end helps manage end-of-stroke impact.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 22 / 28 mm |
| Total travel | 50 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| 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, 21 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) | 22 mm |
| P2 (section 2) | 28 mm |
| P3 (both extended) | 50 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 SCT32X22X28
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×22 | Stroke 1 (section 1) in mm. |
| ×28 | 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 SCT32X22X28 Is Used
Two-Way Part Sorting
Use the four discrete positions to divert lightweight parts to two separate lanes on a conveyor, with a distinct retract, intermediate, and full-extend stop for each lane gate.
Sequential Clamping
Apply a low-force pre-clamp at the 22 mm stroke, then a full clamp at 50 mm. The 28 mm position can serve as a part-present check before final clamping pressure is applied.
Multi-Depth Staking
Drive a staking tool to two different controlled depths in one cycle. The 22 mm and 50 mm positions provide repeatable depth control for assemblies requiring a two-step forming process.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X22X28 the Right Cylinder?
Choose the SCT32X22X28 when your process requires four precise mechanical stops without the complexity of servo control. It replaces two individual 32 mm bore cylinders or an SC unit with external hard stops, saving space and simplifying pneumatic plumbing. For higher thrust, step up to the 40 mm bore SCT40 series, which provides 628 N of push per section at 0.5 MPa. Ensure the replacement matches the 32 mm bore, both 22 mm and 28 mm strokes, PT port thread, and basic mounting style. With a combined stroke of 50 mm, rod buckling is not a concern under normal axial loads, but always align the load to prevent side forces on the 12 mm rod.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 22 + 28 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 SCT32X22X28 FAQ
It provides 4 discrete mechanical stops: 0 mm (fully retracted), 22 mm, 28 mm, and 50 mm (fully extended). These are achieved by pressurizing the first section, the second section, or both sections simultaneously. It does not offer infinitely variable positioning.
Yes, in many cases it can replace two 32 mm bore cylinders with 22 mm and 28 mm strokes, provided the mounting style and port thread (PT) match. It simplifies the setup by using a common rod and piston line, but you must verify that the per-section force of 402 N at 0.5 MPa is sufficient for each stage of your application.
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