6200mm CNC Precision Knife Sharpener for Plywood

Product Overview

With a grinding length of 6200mm, it accommodates the longest knives and blades in plywood production, from band saws to veneer slicers. By combining CNC precision with robust grinding technology, it restores edges to factory specifications, reducing tool replacement costs and ensuring consistent cut quality across production runs.

Product Specifications

Features

CNC-Aided Precision

At the heart of the sharpener is a 5-axis CNC control system that enables complex grinding patterns, including helical edges, convex profiles, and multi-angle bevels—critical for specialized plywood cutting tools. A laser measuring system scans the tool’s current edge geometry before grinding, creating a digital map of wear patterns. The CNC then generates a custom grinding path to restore the original edge profile, ensuring consistency across multiple tools of the same type.

Robust Construction

To handle the forces of heavy grinding, the sharpener features a cast iron base with internal ribbing that minimizes vibration—vibration is a primary cause of uneven edge finishes. Thermal stabilization technology maintains consistent operating temperatures, preventing thermal expansion that could affect precision. The automatic wheel dressing system trues the grinding wheel every 10 cycles, ensuring optimal grit exposure and extending wheel life by 30% compared to manual dressing.

Multi-Tool Compatibility

The system supports a wide range of cutting tools used in plywood production, including:

Band saw blades for log breakdown

Veneer slicing knives for thin sheet production

Planer blades for surface finishing

Scoring tools for preventing edge splintering

Quick-change tool holders with standardized mounting points reduce setup time between tool types, with most changes completed in under 15 minutes.

Safety & Compliance

Grinding operations generate debris and heat, so the sharpener includes an enclosed grinding chamber with explosion-proof glass viewing windows, containing sparks and particles. A high-efficiency mist collector removes 99.9% of coolant mist, improving air quality, while a chip conveyor automatically removes metal shavings, reducing manual cleanup. These features meet ATEX standards for explosive environments, common in woodworking facilities with dust accumulation.

Applications

Plywood Mills: Reconditions band saws and slicing knives, maintaining consistent cut quality for veneer and core layers.

Woodworking Factories: Sharpens planer and router blades, ensuring smooth surface finishes on plywood panels.

Paper & Packaging: Restores blades used in corrugated board production, where precision cuts prevent material waste.

Recycling Industries: Sharpens cutting tools for processing reclaimed plywood and composite materials.

FAQ

Q: How does CNC control improve sharpening results?

A: CNC eliminates human error in grinding path alignment, ensuring each tool is sharpened to exact manufacturer specifications, with repeatable results across batches.

Q: What types of grinding wheels are compatible?

A: The system supports aluminum oxide wheels (for HSS tools) and diamond wheels (for carbide-tipped tools), with automatic wheel speed adjustment based on wheel type.

Q: What is the typical sharpening cycle for a 6200mm knife?

A: A full reconditioning cycle, including measurement, grinding, and cooling, takes 45–60 minutes for a standard knife with moderate wear.

Q: Is remote support available for troubleshooting?

A: Yes. The sharpener’s IoT connectivity allows technicians to access real-time diagnostics, update software, and guide operators through troubleshooting remotely, reducing downtime.