Winway specializes in the production and wholesale supply of PCD PCB Edge Milling Cutter for automated PCB edge-finishing applications. Featuring PCD polycrystalline diamond composite segments mounted on a high-strength alloy-steel substrate, this cutter is precision-ground into R-corner or chamfer profiles for secondary PCB edge processing. It removes burrs and flashes while forming smooth, rounded board edges, helping prevent sharp corners from scratching copper foil and dry film during subsequent production. Custom R-radius, angle, outer diameter and inner hole options are available to meet different machine and processing requirements.
The PCD PCB Edge Milling Cutter is a specialized post-processing tool for fully automatic inline PCB depaneling and edge-finishing lines. PCD polycrystalline diamond segments are brazed onto the cutter teeth and precision-ground into preset R-corner or chamfer profiles. Unlike panel-cutting tools, it does not separate PCB panels. Instead, it performs secondary grinding, deburring and corner rounding on pre-cut PCB edges to remove flashes, exposed glass fibers and lifted copper foil. It is compatible with CEM1, CEM3, FR2 and FR4 circuit boards.
Tool Function Distinction: A cutting-milling cutter combines panel cutting and edge trimming, while an edge-beveling cutter is designed specifically for post-processing operations such as edge grinding and chamfering.
Driven by the machine spindle at high speed, the profiled PCD cutting edges perform finishing operations through a combination of grinding and micro-milling on pre-cut PCB side edges. The PCD PCB Edge Milling Cutter is designed to remove small amounts of material while refining the board-edge profile.
● Edge Contact: The preset R-corner or chamfer profile contacts the board edge and removes residual burrs, glass-fiber protrusions and copper flashes with minimal material removal.
● Profile Formation: Diamond cutting particles process exposed glass fibers and reshape the board edge to form a uniform R-corner or chamfer profile in a single pass.
● Chip Removal: The chip flutes help evacuate glass-fiber dust and cutting debris, reducing residue accumulation and the risk of scratches on the board surface.
● Low-Stress Finishing: The tool performs edge trimming rather than panel separation. Its low material removal and cutting stress help reduce the risk of board delamination and copper-foil lifting while maintaining consistent edge dimensions for subsequent lamination and assembly.
The cutter combines high-grade PCD cutting segments with a high-strength alloy-steel substrate. The polycrystalline diamond composite provides high hardness and wear resistance, while the substrate supports tool strength and stable operation. This combination offers greater wear resistance than conventional tungsten-steel cutting tools.
● High Wear Resistance: Super-hard PCD cutting edges provide longer service life than conventional carbide edge-beveling cutters, helping reduce tool replacement frequency.
● Reduced Burr Formation: Precision-ground cutting profiles help minimize edge burrs and reduce the need for additional manual deburring.
● Stable Continuous Processing: Slow-wearing PCD cutting edges help maintain consistent edge quality during extended mass-production operations.
● Controlled Tool Runout: Strict runout control helps reduce vibration and lower the risk of board-edge chipping during processing.
● Customized Tool Profiles: Non-standard dimensions and cutting profiles can be customized to meet different PCB edge-finishing requirements.
| Parameter Item | Standard Specification | Customization |
| Outer Diameter | 73 mm / 83 mm / 87 mm | Custom OD available |
| Inner Hole | 12 mm, 13 mm (for Φ73); 25.4 mm (for Φ83, Φ87) | Custom bore size |
| Saw Body Thickness | 5 mm / 6.5 mm | Adjustable |
| Number of Teeth | Φ73: 6 / 8 / 12T; Φ83: 4 / 6 / 8 / 10 / 12 / 16T; Φ87: 4 / 6 / 8T | Custom tooth quantity |
| Angle | 90° | Custom angle available |
| Radius (R) | 0.125 / 0.3 / 0.5 / 0.8 mm | Custom R-radius available |
| Processable Materials | CEM1, CEM3, FR2, FR4 | Other materials subject to confirmation |
| Flatness Tolerance | ≤0.005 mm | Full inspection |
Parameter Note: R-radius, angle, outer diameter and inner hole can be customized according to customer drawing requirements.
● For Board Thickness ≤1.0 mm: Select a small-R profile to avoid excessive material removal from thin PCB edges.
● For Non-Standard Inline Depaneling Machines: Customize the outer diameter and inner hole according to spindle and fixture drawings.
● For Continuous Mass Production: A 6.5 mm thick saw body can be selected for improved running stability, subject to machine compatibility.
Used immediately after PCB cutting to remove edge burrs, glass-fiber protrusions and lifted copper foil, improving the finish of pre-cut boards.
Suitable for edge finishing of materials such as aluminum-base PCBs and CEM boards, where controlled cutting helps reduce burr formation.
Applied to edge deburring and R-corner chamfering of CEM1, CEM3, FR2 and FR4 circuit boards.
Removes sharp edge projections and copper-foil flashes to help prevent scratches on dry film and copper foil during subsequent pressing and assembly.
Supports continuous edge-finishing operations in automated PCB manufacturing, helping maintain consistent board-edge quality across production batches.
Each cutter is individually packed in an anti-collision plastic tube to protect the cutting edges during storage and transportation. Bulk orders are packed in carton boxes with foam cushioning. All products are inspected and labeled before packing.
A1: Yes. Winway provides professional regrinding services for worn PCD PCB Edge Milling Cutter. This service helps restore the cutting edges of eligible tools, extend their usable life and reduce tool replacement costs.
A2: Common causes include unsuitable feed speed, insufficient dust removal and worn cutting edges. Check the processing parameters and dust-removal system, and inspect the cutting edges for wear.
A3: Yes. Winway can customize the outer diameter, inner hole, tooth profile, R-radius and cutting angle according to customer drawings and machine requirements.
A4: Remove accumulated glass-fiber dust from between the teeth with an air gun after each production shift. Check the spindle clamping condition regularly and avoid impact loads during installation, operation and handling to help prevent tooth chipping.
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