Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 265mm and 50mm give 4 controllable stop positions across a 315mm total travel, with a Ø63mm bore, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Stroke 1265 mm
- Stroke 250 mm
- Total travel315 mm
- Positions4 stops
- Port sizePT1/4
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S
The SCT63X265X50S is a tie-rod multi-position cylinder that delivers four discrete rod stops—0 mm, 265 mm, 50 mm, and the full 315 mm extension—by pressurising its two tandem piston sections independently or together. Each 63 mm bore section provides 1559 N of push force at 0.5 MPa, rising to 2805 N at the 0.9 MPa maximum operating pressure, driven through a 20 mm diameter rod with M16x1.5 threads.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for non-contact position sensing at any of the four stops. The adjustable air cushion at each end (28 mm cushion length) decelerates the load smoothly, while the 249 mm baseline body length keeps the assembly compact for its 315 mm total travel. It is a genuine AirTAC multi-position actuator ready for discrete indexing tasks.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø63 mm |
| Stroke 1 / Stroke 2 | 265 / 50 mm |
| Total travel | 315 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) | 265 mm |
| P2 (section 2) | 50 mm |
| P3 (both extended) | 315 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 SCT63X265X50S
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 63 | Bore size in mm (SCT range 32–100). |
| ×265 | 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 SCT63X265X50S Is Used
Two-Depth Pressing
The 50 mm and 265 mm stops let a press tool approach a part at high speed to the 50 mm position, then complete a controlled 215 mm power stroke to the full 315 mm extension for two-stage forming.
3-Way Diverter Gate
Retracted (0 mm) directs flow to lane one, the 50 mm stop to lane two, and the 265 mm or full 315 mm extension to lane three, giving a single actuator three routing positions.
Multi-Stop Part Transfer
A pick-and-place beam stops at 50 mm for picking, 265 mm for an intermediate inspection camera, and 315 mm for placing, all with sensor confirmation via the built-in magnet.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT63X265X50S the Right Cylinder?
Choosing the SCT63X265X50S makes sense when an application needs two distinct extended positions plus retracted, avoiding the complexity and plumbing of two separate cylinders with external stops. The 265 mm primary stroke handles the long travel, while the 50 mm secondary stroke provides a precise short step—ideal for a two-depth pressing or a diverting gate that requires a partial-extension intermediate state. If the per-section force is too high, stepping down to a 50 mm bore drops push force to 982 N at 0.5 MPa; if more force is needed, the 80 mm bore delivers 2513 N.
For replacement, match the 63 mm bore, both the 265 mm and 50 mm strokes, PT port thread, basic mounting, and the -S magnet suffix exactly. Because the primary stroke exceeds 300 mm, ensure the rod is externally guided or the load is supported to prevent side-loading and rod bending when fully extended.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 265 + 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 SCT63X265X50S FAQ
It provides four discrete mechanical stops: fully retracted (0 mm), the first section extended (265 mm), the second section extended (50 mm), and both sections extended together for the total travel of 315 mm. The positions are fixed by the two stroke lengths, not infinitely adjustable.
Yes, if the application currently uses one cylinder for a 265 mm stroke and another for a 50 mm stroke in a tandem or sequenced setup. The SCT63X265X50S consolidates them into a single tie-rod body with shared ports. Ensure the replacement matches the PT thread, basic mounting, and the -S magnet option for sensor compatibility.
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