Profile: Shanghai JianYe Heavy Industry Co., Ltd. specializes in the manufacture, research and development of construction mining machinery. Our main products include jaw, impact, cone & vertical shaft impact crusher, grinding mill, Raymond mill, and other pertinent machines & equipment such as vibrating feeder, vibrating screen & sand washing machine. The grinding machine is suitable for grinding barite, limestone, ceramic and slag. 6R grinder mill is mainly used for grinding mineral products in industries such as metallurgical, building, chemical and mining. Our cone crusher is widely used in metallurgy, architecture, chemistry & silicate industries for crushing various mid-hard & hard ores & rocks. The spring release system of our cone crusher acts as an overload protection to allow the tramp iron to pass without damage to the crushing chamber. The sealing system uses double dry oil and water sealing to separate the lubricating oil from stone dust to provide its reliable operation.