Overtone is the world's first manufacturer of professional power tools and has a history of more than 150 years. Overtones invented the world's first power tool, and has been constantly developing new products, so it can be said that the history of overtones is the history of the power tool industry.
The materials are excellent and the durability is high
Overtone's power tools are known for their robustness and durability, with a product life of 10 years or more. The core part of the power tool is the motor, which affects the output performance and efficiency of the machine. According to the disassembly inspection of the overtone machine that has been used for 9 years, it was found that there was no deformation of the internal stator and rotor assembly, the dynamic balance of the rotor part was also preserved, and the commutator had carbon deposits left by carbon brush friction.
In addition to the motor, the overtone also achieves high durability in other accessories, the product is very finely made, every part of the machine is almost free of burrs, and the production date is printed on the open mold, and the rotor parts are stamped in steel, which is not possible with many brands.
Powerful power system
According to the different motor structures used, they are divided into brushed motors and brushless motors. There are carbon brushes at the steering gear of the brushed motor, and the carbon brushes need to be replaced when they are worn to a certain extent, and regular maintenance is indispensable. The brushless motor structure uses Hall elements as induction steering, eliminating the friction between the carbon brush and the steering gear, reducing power loss and higher output efficiency, and has been used in the CCG series of overtone household angle grinders.
In addition to the above characteristics, the brushless motor also has good speed regulation characteristics, such as the CCG series as the representative of the overtone brushless model supports the stepless electronic speed adjustment function, which can help users better adjust the speed according to the grinding material. In order to avoid dust and debris from entering the motor during the grinding process, the overtone adopts a fully enclosed motor box structure to ensure that the motor power does not deteriorate for a long time.
The power input power of the brushless motor is as high as 1100W, and such a powerful motor is bound to have a large heat generation during the working process. It is worth mentioning that the brushless CCG series is powered by lithium batteries, and the discharge performance of the lithium battery pack used in overtone is 75% higher than that of ordinary lithium batteries, and only 18V voltage can support the work of high-power motors, and has better battery life.
Of course, Overtone also has the WSG series that uses brush motors, which have more stator and rotor copper wire windings than general brands and are more closely arranged, with greater output power and stronger resistance to overload, and Overtone claims that its carbon brush structure has been improved and optimized, and the life is 30% higher than similar products, and it has a higher grinding capacity.
Solid security backing
The R&D technology of overtones has always been at the forefront of the world, and the safety design has not been left behind. The most dangerous situation when the angle grinder is working is that when the grinding wheel is stuck, the huge angular force reacts to the machine, causing the machine to be thrown off and an accident occurs. Overtones realized early on, so as early as 1987, the first safety angle grinder with a quick clamping system and a braking system was introduced. To this day, the angle grinders of the overtone WSB model still use the electronic braking system.
At present, the safety configuration of the electric angle grinder of overtone is more abundant, and it is basically equipped with multiple safety protection systems, including anti-recoil protection, soft start protection, restart protection, fast braking and motor overload protection and other functions.
User-friendly body design
The external body design of the angle grinder greatly affects the use experience of the machine, and many brands on the market claim that their machines are ergonomic, but in fact, in addition to the small circumference of the fuselage, it is relatively slender, and ergonomics do not match. The overtone independent innovation and development of a kind of ergonomic handle, the model with the letter R angle grinder has this kind of handle, this design adopts a similar D-shaped ring principle, more convenient to hold, is the overtone in order to achieve fatigue-free work and launched. In addition, the angle grinders of the R model are equipped with a carbon brush replacement window, which is more convenient.
The vibration of the angle grinder has a great impact on the operator's experience, and many brands are racking their brains on the shock absorption design of the angle grinder, but the results are not obvious. The overtone opens a breakthrough to decouple the motor from the chassis, and with 4 additional shock absorbers, it not only ensures the smooth operation of the motor, but also greatly reduces the vibration, which is very close to vibration-free operation. The vibration of the whole line of angle grinder products is much smaller than that of other brands.
At present, 80% of the products of overtones are still produced in Germany, because a factory has also been set up in China, some products are produced in China, although not all components are imported from Germany, but the quality is comparable to that produced in Germany, and the price has been reduced. At present, there is no official online sales channel in China, and it can only be purchased through offline dealers.
