The two major power tool brands, Dewalt and Black & Decker, both belong to the Stanley Black & Decker Group, and their positioning and development strategies are different. In the early days of its establishment, Black & Decker produced DIY power tools for home use, while DEWALT mainly produced professional-grade power tools. After Black & Decker acquired DEWALT in 1960, it turned to the professional power tool business, but now Black & Decker's business focus has shifted to household appliances such as vacuum cleaners.
DEWALT's power tools are among the world's first-line power tool brands with durability, high temperature and drop resistance, and high-intensity operation, and are also the formulators of the American power tool industry standard. Before DWAT machines can be sold in the market, they must be tested, such as falling from a height, rolling the machine in a mixer, and working under severe conditions.
At present, the DW series has been upgraded to DW8, compared with the old model, the DW8 series has increased the power by about 20%, the weight is lighter, the body is slimmer, the carbon brush and commutator have been optimized, and the service life has been extended. The gearbox was upgraded from a split to a one-piece one, reducing the chance of failure and damage caused by oil leaks. The rear air inlet was changed to a louvered type, which is both ventilated and dustproof. DW8 series models are very selective, large and small power are available, 700-800W power models are priced at about 300 yuan, which is very suitable for home or DIY enthusiasts.
The second generation of wired angle grinder D28 series, greatly increased power, grinding wheels used 180mm or 230mm, the unit price ranges from 900 yuan to 1300 yuan, suitable for industrial use. The third generation of wired angle grinders is the DWE Iron Man series and Thor series, on the basis of the previous generations, the third generation pays more attention to the fuselage design, the Iron Man series features a slender fuselage, which is the thinnest model in the whole line of DWALT angle grinders. The Raytheon series has a unique automatic slag discharge system, most of the dust sucked into the machine can be discharged from the tail of the machine by itself, which greatly extends the service life of the machine.
In the rechargeable angle grinder, DEWALT does not have many layouts, and the basic performance of lithium battery angle grinders has little advantage compared with other brands, but DEWALT's Flexvolt series has a high battery control technology, and has been awarded the most innovative award for two consecutive years with "the world's first battery that can automatically change voltage". Flexvolt lithium battery technology is mainly a 60V high-voltage and high-power cordless system, which effectively improves the battery life of the charging tool, and the battery can also change the voltage according to the model used, and the three modes can be switched at will, which can be compatible with all 18V machines of Dewalt. In addition, DEWALT also independently produces brushless motors, and the temperature rise is significantly lower than that of brushed motors.
