Sharpening machines from Wood-Mizer - the latest equipment for the maintenance of saw blades

Every saw blade needs proper maintenance to cut efficiently and accurately. In the cutting process, even the best blade will sooner or later melt, its cutting edges reducing its ability to cut efficiently and the teeth of the blade losing their correct shape. There is a way to avoid this, by sharpening blades using a specialised machine, a sanding disc and mineral sanding oil. After sharpening, you need to sharpen the teeth of the blade to prepare the saw blade for cutting.

One of the essential pieces of equipment for maintaining saw blades is the sharpening machine, which will restore the sharp edges of the blade and the correct tooth profile. Wood-Mizer offers several saw blade sharpening machines - the affordable BMS250 and the more advanced BMS500 and BMS600 models. Although they differ in design, they share some common features - all use profiled CBN sharpening wheels and have the sanding head locked at an angle, ensuring the best fit and consistency of the wheel to the blade profile.

CBN grinding technology

Wood-Mizer recommends using CBN grinding technology, which uses a super abrasive, cubic boron nitride material for the best grinding results. CBN particles are as hard as the earth's hardest material - diamond. They give a much better grind than traditional aluminium oxide or silicon carbide abrasive discs because they don't melt quickly or burn the material. A CBN disc has a profile that exactly matches the geometry of the blade tooth. Wood-Mizer offers saw blades with several different tooth profiles, and for each blade profile there is a dedicated CBN profile. If you choose the wrong CBN profile, it will damage the abrasive disc, distort the profile of the blade or even cause the sanding head on the saw to break.

CBN grinding technology requires mineral oil for cooling and cleaning. Wood-Mizer recommends the use of mineral oil with technical specifications ACP1 or ACP2 to effectively clean the abrasive structure of the disc and cool surfaces that heat up during the sanding process. This helps to use the CBN abrasive disc for a long time with the best performance in service.

Features of Wood-Mizer sharpening machines

Wood-Mizer's range of saw blade sharpening machines starts with the BMS250, a high quality automatic saw blade sharpener designed for regular and reliable blade maintenance in a professional sawmill operation. The BMS250, unlike its simpler version - the BMS200, has a sanding head cover that protects the inner mechanism and a control panel integrated into the electrical panel. The grinder is driven by a 0.18 kW (230V) electric motor, which drives the 127 mm grinding disc at a rotational speed of 2700 rpm. It sharpens 25-50 mm wide saw blades as efficiently as possible thanks to features such as automatic stop, variable feed speed, exhaust nozzle and oil wiper pads. Installing the blade on the machine and the procedure for adjusting the sanding depth and pusher movement is simple and effortless. Wood-Mizer recommends running the saw blades through the machine in 2-3 cycles for best sharpening results, which generally takes less than 4-5 minutes.

Two other sharpening machines in the Wood-Mizer offer are BMS500 and BMS600. Their design meets the requirements of high capacity saws that require continuous blade sharpening. Both models are compatible with a 203 mm grinding wheel and are driven by a 0.75 kW (400V) electric motor running at a speed of 4280 rpm. For improved sharpening efficiency, the BMS500 and BMS600 models feature an automatic deburring device, automatic tooth-count stop and an easy-to-access control panel. Sharpening a 25-75 mm wide saw blade with 13-29 mm tooth spacing generally requires a single cycle of 3-4 minutes. The BMS600 differs from the BMS500 by being equipped with a more efficient oil pump, a larger oil tank and improved oil application nozzles.