Overview
The PC4-M10 Pneumatic Fitting is a premium metal push-to-connect coupler widely used in 3D printers and industrial pneumatic systems. It features a convenient quick-release mechanism that firmly grips 4mm Outside Diameter (OD) PTFE tubing while providing a sturdy M10 (10mm) male thread connection on the other end. Made of high-quality brass and stainless steel teeth, this coupler prevents the Bowden tube from slipping out during fast retractions, reducing the chances of under-extrusion and filament jams.
Key Features
Quick-Release System: Simply press the black or blue plastic release ring down to instantly slide the PTFE tube in or out.
Aggressive Internal Grip: Stainless steel lock claws inside the coupler ensure the tube stays firmly in place under high pressure.
Thread Precision: M10 metric thread fits perfectly into standard aluminum extruder blocks, heatsinks, and custom feeder mechanisms.
3D Printer Essential: The standard replacement part for popular desktop 3D printers like the Creality Ender 3 series, CR-10, Anycubic, and Prusa clones.
Technical Specifications
| Feature | Specification |
| Model | PC4-M10 |
| Supported Tube Outer Diameter (OD) | 4.0 mm |
| Thread Type | M10 (Metric 10mm Male Thread) |
| Material | Brass (Body) + Stainless Steel (Claws) + Plastic (Release Ring) |
| Fluid Type | Air / Vacuum / Filament Guidance |
| Compatibility | Standard 1.75mm Filament PTFE Tubing |
Common Applications
Bowden Extruders: Connects the feeder motor assembly to the guide tube.
Hotend Assemblies: Guides filament smoothly into the cooling radiator/heatsink.
DIY Robotics: Custom filament delivery paths or micro-pneumatic air lines.
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