Ningxia Dongjing Machine Tool Co., Ltd. is a professional manufacturer of valve seat boring machines. The company is committed to the development and innovation of engine equipment, as well as professional maintenance of equipment. It is a member unit of China Automobile Maintenance Equipment Industry Association (CAMEIA)The company has designed and produced the“air float centering valveseat boring machine“since 2004. The technology obtained four national patents and in a leading positionin China. It research and development change the situation of importing and fill in a blank of vehicle repair industry in China. It create a precedent for rebuilding and repairing cylinder head equipment. To achievehigh precision repair technology, high efficiency and benefit, greatly liberating the productive forces. Theproducts are well received based on its high quality and cost effective by domestic and internationalcustomers.
TQZ85 series air float auto- centering valve seat boring machine is a kind of high precision andefficiency special machine with tool grinder and vacuum testing for workpiece. It' s suitable for rebuildingand repairing kinds of valve seat and valve rod hole of engine cylinder head. It has been sold to more than30 countries and areas and win high reputation at home and abroad.