1.PCB Diamond V Cut Blade Overview

PCB Diamond V Cut Blade (also known as a V-knife or V-groove cutting blade) is a core processing tool in PCB manufacturing. Designed specifically for V-groove cutting—critical for cutting PCB boards into individual units without damaging components—it utilizes a diamond-coated blade edge for exceptional hardness and wear resistance. Compatible with both manual V-cut machines (for low-volume production) and automatic CNC V-cut machines (for high-volume production lines), it is suitable for a wide range of PCB types: single-sided, double-sided, multi-layer, halogen-free, FR-4, high-TG, aluminum, and copper. As part of our comprehensive PCB production solution, it works seamlessly with a Nylon brush for blade cleaning, an anti-static PP sheet for storing finished PCBs, and a PVA Sponge Roller for wiping the PCB surface after cutting, providing end-to-end support for PCB factories.

Technical Specifications

Product Name: PCB Diamond V-Cutting Blade

Core Material: High-Speed Steel (HSS) Base + Diamond Coating teeth (Enhanced Hardness and Wear Resistance)

Hardness: HRC 62–65 (Base) + Diamond Coating Hardness ≥ HV 8000 (Ensures Long Service Life)

Compatible Machines: Manual V-Cut Machines, Automatic CNC V-Cut Machines

Applicable PCB Types: Single-Sided PCBs, Double-Sided PCBs, Multi-Layer PCBs, FR-4, High-TG PCBs, Aluminum PCBs, Copper PCBs, Halogen-Free PCBs

Standard Dimensions (Customizable):

Outer Diameter: 50mm–120mm

Inner Hole: 10mm–25mm

Number of Teeth: 12T–48T

V Angle: 30°–90° (Standard PCB separation is typically 45°)

Cutting Speed: Up to 30 m/min (Suitable for FR-4 PCBs, Burr-Free)

Service Life: Over 50,000 Cuts (For FR-4 PCBs, up to 3 times longer than non-diamond blades)

Packaging: Rust-proof oil coating + carton (1 piece/carton, 10 cartons/pallet)

Core Material and Hardness

Unlike standard Tungsten Carbide Blade or HSS blades, this product uses a dual-material approach:

Base Material: High-Speed Steel (HSS) base with a hardness of HRC 62–65, providing the necessary structural integrity for high-speed rotation.
Cutting Edge: A Diamond Coated Blade surface with a minimum hardness of HV 8000. This Diamond Coating drastically enhances Wear Resistance, extending the Tool Life up to 3 times longer than traditional blades.

Geometry and Precision

The blade is a Rotary Blade available in a customizable V-Cut Angle range (30°–90°, typically 45° for standard separation). Precision is maintained through strict tolerances ( $\pm 0.5^\circ$ for the V-angle), ensuring a clean, burr-free V-Grooving process.

V Cut Blade 1 — 2. Key Features and Performance Advantages

The Diamond V-cut blade offers quantifiable advantages in quality and operational cost, making it the preferred PCB V Cut Blade for high-volume production.

Feature	Description	Advantage for Purchasers
Diamond-Enhanced Durability	Achieves over 50,000 cuts on FR-4 (3x longer life).	Reduces blade replacement frequency and downtime on automated CNC V-Cut machines.
High Cutting Speed	Supports speeds up to $30 \text{ m/min}$ .	Improves Improved Productivity and reduces per-unit PCB processing costs by up to $20\%$ .
Wide Material Compatibility	Handles FR-4, High-TG, Aluminum PCBs, and Halogen-Free PCBs.	Eliminates the need to stock multiple types of V Cut Saw Blade for varying production requirements.
Customizable Specifications	Outer Diameter ( $50 \text{mm}$ – $120 \text{mm}$ ), V-Cut Angle, and teeth can be customized.	Allows the manufacturer to obtain a precise V-cutting blade for PCB that matches their specific machine and product design (e.g., 30° for thin Aluminum PCB Cutting).

3. Application Scenarios and Value

The V-scoring diamond blade is ideal for applications where quality, speed, and durability are paramount.

High-Volume Production: Used with automated CNC systems processing multilayer FR-4 panels for consumer electronics, where the long life ensures maximum uptime.
Specialized PCB Manufacturing: Essential for Aluminum PCB Cutting and handling the abrasive nature of Halogen-Free PCB materials. The diamond coating resists dulling better than any Tungsten Carbide Blade in these harsh conditions.
Prototyping: Flexible support with a small Minimum Order Quantity (MOQ) makes it accessible for R&D labs needing precise V-Groove Cutting Blade for prototype panels.

The use of this Diamond PCB cutting blade directly contributes to Improved Product Quality by providing burr-free cuts, reducing separation damage by $30\%$ , and lowering total operating costs.

4. Procurement and Compliance

Purchasers searching for a reliable Blade Supplier or looking for V-Cut Saw Blade options should note the compliance standards.

Compliance: The Welltronics blades are RoHS and REACH compliant, ensuring safe use globally.
Sourcing: The availability of FOB, EXW, and CIF Incoterms, combined with flexible shipping options, accommodates various business sizes looking to purchase this PCB V-groove blade globally.