Shandong Sheng Machinery Co., Ltd specializes in producing various types of brick, brick machine, brick machine, hollow brick, brick pavement and other equipment of the old brick factory.
      By type of pollutants, oil pollution can be divided into the following categories: solid particle pollution, water pollution, air pollution, and mixed quality pollution.
       A solid particle contamination: solid particles containing dust, welding slag, embroideries and metal powder. They mixed with hydraulic oil and oil with activities throughout the hydraulic system and, when the body through these dirt will fill the vacancy slippery slide valve spool constitute a continuous slow motion or movement. Second, hydraulic oil-rich solid particles similar to the use of abrasive grinding metal machining surface when it passes through the pump, cylinder and valve wear each pair will increase conflict, hair and make new pollution particles will greatly decrease the use of life components number, a serious threat to normal operation of the hydraulic system.
       2. Water pollution: after a certain amount of water entering the hydraulic oil, the oil will become white, so that the activities of oil deterioration, when the moisture content of zero percent over time, the oil does not have the normal activities of the. After the water and oil in the sulfur or chlorine contact, will attack sulfuric or hydrochloric acid value when the oil arrived in 0.3mgKOH / g, it will corrode metal parts and the onset of embroideries, constitute the solid particle contamination, so that the whole hydraulic system can not work properly, other chlorinated water itself can slow metal, then cut down by using several hydraulic components life.
      3. Air Pollution: After hydraulic oil into the air, because the volume and inversely proportional to the gas pressure, so follow the load changes, the implementation of the moving element will be affected; import filter after occlusion, the suction resistance of hydraulic oil greatly add , can cause cavitation, vibration and noise; air and also the element can be a hydraulic oil chlorination lost smooth function; especially under ambient conditions of high temperature and pressure, the air is very simple transformation oxide constituting the hydraulic oil, active resistance increases, constitution Implementation components work properly, other transformation of the hydraulic oil can also generate harmful substances will corrode metal parts.
      4. Grease: the hydraulic system during normal movement, so as not to exchange the kind of quality or trade mark, when the hydraulic oil is not the same as the type of mixing two or trademarks after because of its chemical composition is not the same, can change the chemical composition of the hydraulic oil, so that changes in the nature of attack.
      Shandong Sheng Machinery Co., Ltd has been committed to cement machinery products development, production and sales, with advanced equipment, professional and technical skills, and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of the user, the main block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, wire rod machine equipment. Currently has 19 branch offices and six foreign countries (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported to more than 100 countries and regions.