Hitachi Koki broke away from Hitachi Group in 2017 and reached a strategic partnership with KKR Investment Company of the United States, and was fully upgraded to the HiKOKI brand in 2018. The original Hitachi Machinery did not have a high market share in the Japanese power tool industry, and its product line was not as wide as Makita's, and it mainly promoted high-end models.
At present, the production areas of Gaoyi Gongji angle grinders sold in China are mainly in Guangdong, China and Malaysia, and the production base in Malaysia mainly produces high-power angle grinders with a power of up to 1200W.
After the brand upgrade, all aspects of the products of Gao Yi Gongji have changed. In terms of appearance, the old version of Hitachi tool shell is green all over, and the plastic feeling is slightly heavier, while the shell of Gao Yi Gongji product is dark green and black, which is more luxurious. The angle grinder with a power of less than 1000W has three main core upgrades, namely anti-overload upgrade, power upgrade and heat dissipation upgrade, official data shows that the motor overload resistance is increased by 19%, the grinding capacity and efficiency are increased by 5%, and the fan blade is improved to a curved large fan blade, which has a better heat dissipation effect.
Similar to Makita, the angle grinder products with a power of less than 1000W are not safe enough to prevent jamming and rebound, soft start protection, and the price may not be lower than Makita's products, so it is not recommended to buy. On the contrary, the company has put all of its technology into the high-end model, the angle grinder that uses a brushless motor. High-end models are expensive because they are made of stacked materials, and have more comprehensive safety protection measures, as well as functions such as stepless speed regulation and adaptive speed.
The launch of the 36V lithium angle grinder is a highlight, and the mainstream lithium battery voltage on the market is 18V, while there are very few 36V and 60V lithium batteries. The 36V lithium battery of Gao Yi Gong Machinery can be compatible with all Gao Yi Gong Machinery 18V products, and the battery cell uses 21700 lithium battery cells, which has stronger discharge capacity than the 18560 lithium battery used by ordinary brands, and the machine has more power and higher work efficiency. Of course, the ultimate performance is also reflected in the price, the lithium battery of Gao Yi Gongji is more expensive than other brands, resulting in a standard lithium angle grinder price of more than 3000 yuan.
