blower / CNC router parts / engraving machine parts /water-cooled spindle /on-off

There are generally three modes of switching power supply: fixed frequency and pulse width mode, fixed frequency and variable pulse width mode, and variable frequency and pulse width mode. The former mode is mostly used in DC/AC inverters or DC/DC voltage conversion, while the latter two modes are mostly used in switching regulated power supply. In addition, the output voltage of switching power supply also has three working modes: direct output voltage mode, average output voltage mode and amplitude output voltage mode. Similarly, the former is mostly used in DC/AC inverters or DC/DC voltage converters; the latter two are mostly used in switching regulated power supply.

Hefei Huanrui Machinery Manufacture Co., Ltd., located in Jingkai industrial zone of Heifei, is an enterprise specialing in R&D and production of all kinds of machineries and industrial supporting and a large production base of processing and producing steel spinous paper roller series, knurling shaft series，cutting plotter series and CNC engraving machine series. With the first class hardware equipment of numerical control machine and professional high-end talents, we establish the most perfect after sale service system under the talent of “Sincere Cooperation, Collaborative Development”, the soul of “Superior Quality, Outstanding Contribution ” and the responsibility attitude of “Quality First, Pursue Excellence and Provide High-quality Products and Satisfactory Services to the Customers ”. through combining with the continuous research and test, we futher improve the product quality and the products are exported to more than 30 countries and win numerous reputations from clients.

“Huanrui” steel spinous paper roller, “Huanrui” knurling shaft and HH series carving machine is highly praised and supported by the clients for their high quality, the most ecnomical price and the most perfect after-sale service. We will continue to sincerely welcome more clients to cooperate with us by virtue of the attitude of sincere cooperation to promote prosperity of the market and development of market economy.