5 Essential Regrinding Tips

1. Preparation

Before initiating the grinding process, it's imperative to ensure that the knife is thoroughly cleaned. Any debris or residue on the blade can interfere with the grinding process and result in uneven sharpening. By starting with a clean knife, you set the stage for a more effective regrinding process.

2. Selecting the Right Equipment

Utilizing the correct grinding machine equipped with the appropriate grinding wheel is fundamental to achieving optimal results. The grinding wheel should be compatible with the type of steel used in the knife, and its grit size should be suitable for the desired level of sharpness. Additionally, employing a cooling liquid during grinding helps dissipate heat, preventing damage to the blade and ensuring consistent sharpening.

3. Precision in Grinding

When regrinding a knife, it's crucial to adhere to the minimum dimensions specified by the machine manufacturer. Grinding beyond these dimensions can compromise the structural integrity of the blade and diminish its longevity. Aim to remove only the minimal amount of material necessary to restore the sharp edge.

4. Adjusting Grinding Parameters

The removal rate and grinding speed should be adjusted according to the knife’s’ type of steel and hardness. Different steels require varying degrees of abrasiveness and heat dissipation during the regrinding process. Fine-tuning these parameters ensures that the blade is sharpened efficiently without causing undue stress or damage.

5. De-Burring and Finishing

After regrinding, it's essential to remove any burrs or irregularities along the edge of the knife. As any residual material can affect the knife's performance and hygiene. This can be achieved through careful deburring using oilstones or other specialized tools. Before returning the knife to the machine, conduct a thorough inspection to ensure it is ready for use.

By adhering to these recommended regrinding procedures, you can prolong the life of your knives, maintain their sharpness, and ensure consistent cutting performance. Whether you’re cutting metal, plastic, or wood, investing time and effort in proper knife care pays off in precision, safety, and overall performance.

For additional information regarding sharpening your knives, contact our service department at +386 (0)2 870 62 61 or send us an e-mail at helena.potocnik@ravnesystems.com.