Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 250mm and 50mm give 4 controllable stop positions across a 300mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 1250 mm
- Stroke 250 mm
- Total travel300 mm
- Positions4 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50
The SCT32X250X50 is a tandem multi-position cylinder that creates four fixed rod positions from two independent piston sections. With strokes of 250 mm and 50 mm, the reachable stops are 0 mm (fully retracted), 50 mm, 250 mm, and the total travel of 300 mm. Each 32 mm bore section generates 402 N of push force at 0.5 MPa, rising to 724 N at the maximum operating pressure of 0.9 MPa.
This model uses a 12 mm diameter rod with an M10x1.25 thread and PT1/8 ports. The adjustable air cushion on each end provides 21 mm of deceleration, helping to manage kinetic energy at higher speeds. The body length A for this SCT configuration is 233 mm, making it a compact solution for multi-stop linear tasks where space is constrained.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 250 / 50 mm |
| Total travel | 300 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) | 250 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 300 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 SCT32X250X50
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×250 | Stroke 1 (section 1) in mm. |
| ×50 | 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 SCT32X250X50 Is Used
Two-Stage Diverter Gate
Positions a diverter flap at 0 mm (closed), 50 mm (partial bypass), 250 mm (main flow), or 300 mm (full open) in a chute or conveyor line, routing materials to four different destinations.
Multi-Depth Pressing
Drives a press tool to two distinct pressing depths (50 mm and 250 mm) plus a full-extension stop at 300 mm for part ejection, all from a single compact actuator.
Sequential Part Staging
Advances a workpiece through four precise stations on an assembly fixture, using the 0, 50, 250, and 300 mm positions to align with drilling, tapping, inspection, and unloading operations.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X250X50 the Right Cylinder?
Select the SCT32X250X50 when your process needs a compact actuator to index between four distinct positions without the complexity of two separate cylinders and external stops. The tandem design simplifies plumbing and mounting, reducing overall machine footprint. If your application requires more force, consider stepping up to the SCT40 bore, which provides 628 N of push per section at 0.5 MPa. For replacement, match the 32 mm bore, both strokes (250 mm and 50 mm), PT port thread, and basic mounting configuration. When extending the 250 mm section under side load, ensure the rod is externally guided to prevent bending and premature seal wear.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 250 + 50 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 SCT32X250X50 FAQ
It provides four discrete mechanical stops. The rod positions are 0 mm (retracted), 50 mm (section 2 extended), 250 mm (section 1 extended), and 300 mm (both sections extended). The stops are fixed by the two stroke lengths and are not infinitely adjustable.
Yes, in many cases. The SCT32X250X50 integrates two piston sections on a common rod, giving you four fixed positions from one compact body. This eliminates the need to synchronize two separate cylinders and their mountings. Ensure the replacement matches the 32 mm bore, 250 mm and 50 mm strokes, PT ports, and basic mounting.
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