Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 25mm and 100mm give 4 controllable stop positions across a 125mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 125 mm
- Stroke 2100 mm
- Total travel125 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100
The SCT32X25X100 is a double-acting tandem cylinder that delivers four fixed rod positions from two independent piston strokes. By pressurising the 25 mm section, the 100 mm section, or both simultaneously, the rod stops precisely at 0 mm, 25 mm, 100 mm, and the combined 125 mm total travel.
Each piston section generates 402 N of push force at 0.5 MPa, rising to 724 N at the 0.9 MPa maximum operating pressure. The 32 mm bore uses a 12 mm diameter rod with an M10x1.25 thread and PT1/8 ports. Its tie-rod body has an A(SCT) length of 233 mm and features a 21 mm adjustable air cushion for smooth end-of-stroke deceleration.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 25 / 100 mm |
| Total travel | 125 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) | 25 mm |
| P2 (section 2) | 100 mm |
| P3 (both extended) | 125 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 SCT32X25X100
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×25 | 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 SCT32X25X100 Is Used
Two-Stage Sorting Gate
The 25 mm stroke diverts items to a primary lane, while the full 125 mm extension reaches a secondary lane, enabling three-lane sorting from one compact actuator.
Sequential Part Staging
Positions at 0, 25, 100, and 125 mm allow a feeder mechanism to stage components at two distinct depths before a final transfer, ideal for assembly nests.
Multi-Depth Pressing
Delivers two controlled pressing depths (25 mm and 100 mm) plus a full 125 mm retract, perfect for applications requiring a shallow pre-form and a deeper final form.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X25X100 the Right Cylinder?
This four-position tandem unit replaces complex setups that would otherwise require two separate cylinders and external stops to achieve the same 0/25/100/125 mm sequence. It simplifies plumbing and control logic for multi-stop linear tasks. If higher force is needed, stepping up to the 40 mm bore provides 628 N of push per section at 0.5 MPa.
For a direct replacement, match the 32 mm bore, both the 25 mm and 100 mm strokes, PT port thread, and basic mounting configuration. The SCT is a tie-rod design and does not interchange with ISO 15552 profiles. Always confirm the total envelope length and the M10x1.25 rod end thread before retrofitting.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 25 + 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 SCT32X25X100 FAQ
It provides four distinct mechanical stop positions: 0 mm (fully retracted), 25 mm (first section extended), 100 mm (second section extended), and 125 mm (both sections extended). These are fixed, discrete stops, not infinitely variable positions.
Each of the two piston sections independently produces 402 N of push force when supplied with 0.5 MPa air pressure. The force does not double when both sections are pressurised; the maximum thrust available to move a load is still 402 N per actuated section.
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