About us:
Julong focuses on the research, designing and manufacturing of various water engineering ships and platforms. We are a professional manufacturer and reliable service provider of dredging machines, water cleaning harvesters, mining machinery and sand processing machinery. Julong started the manufacturing of dredgers and related machinery in 1993. With more than 20 years' experience, Julong can design and manufacture a variety of high-quality engineering machinery according to customers' requests. Our products are famous for simple operation, reliable performance, perfect environmental adaptability,low cost and long working life. At present Julong has been appointed as senior member of China Dredging Association(CHIDA), member of Qingzhou Dredging Machinery Association, one of Weifang Excellent Scientific and Technological Private Enterprises and Excellent Innovative Enterprises. Julong products have got the Quality Management System Certificate ISO 9001-2008 , MA Quality Inspection & Test Certificate. Julong brand is shown as promoted brand on CCTV (China Central Television).
Product description:
Diamond is an extremely rare mineral resource in nature. There are two kinds of diamonds. One is the primary ore, mining directly in the origin of the original stone. The other is sand ore, we can sieve the diamond which was washed by water like gold mining. Diamond mining process is generally divided into two steps. Rough mining process is mainly gravity concentration, As for concentration mining process, the methods and equipment can be chosen according to the selection of the specific nature and characteristics of the diamond. Diamond densityis 3.5- 3.52, bigger than normal gravel. So for both sand ore and primary ore, diamonds can be extracted from ore by gravity concentration method. Since jigger is easy to operate and with high efficiency and recovery rate which is 97%-100%. So it has become the ideal roughing device. Besides, jigger is an automated mechanical processing equipment. It can achieve large scale production of high efficiency,which is suitable for sand ore and primary ore with few diamond. the main role of jigger in the diamond mining process is rough concentrating to remove a large quantity of abandoned. waste rock and sand, then enter the selection process, which can ensure the diamond concentrating recovery, but also can greatly improve the efficiency of mineral processing. During the jigger running, the ore will form a dense layer on the sieve bed, and the up and down alternating water is supplied periodically from the bottom to the sieve board. When the water rises, the bed is raised and become looser. The heavy mineral particles move down. When the water goes down, the loose situation decreases. The movement of heavy materials is more difficult and the layer is tighter and tighter.Only the tiny material goes down through the interval. When the water stopsgoing down, so does the layer motion. Then the next period goes on. The process repeats and finally the dense materials go to the bottom layer, while the light to the upper layer. there are many ways to keep the water moving. The reciprocating motion of rubber diaphragm is driven by the eccentric rod, thusthe watermoves up and down in the jigger cabin. So this type of jigger is called diaphragm jigger. In Jigger separating tank, big density diamonds and small density waste rock are separated. The fine ore will go into concentrating selection process. Concentrating selection of diamonds can choose grease surface separator, X-ray sorting machines and other concentrating equipment. Mineral sand after washing and screening enters into the jig concentrating process during diamond mineral processing, the concentrating ore goes into the concentrating selection process to obtain the diamonds finally. In a word, the diamond mineral processing is not simple, it doesn't mean one jigger or grease surface separator can finish, in fact, jigger does the rough mining work in diamond mining period and it has a lot of requirements for roughly mining, such as the bed material, specific gravity, thickness, screen size, etc. One jigger is unable to finish rough concentrating, it must be accompanied by precisetechnology.
Our service:
1.Life-cycle support:Julong promises to offer special and full-scale service for all its life.It could furtherest increase the service life of the machine,reduce the total cost,and help clients to get the maximal investment returns.
2.Training:Julong supplies high-quality and advanced training service for the site operation people to ensure that crews operate the dredger in high efficient way to reach the best output.Julong life-cycle support also allows operators to maintain the durability and reliability of their systems through a range of specialist services.
3.Maintenance and After-Sales service:Julong are ready at all times to supply solutions and guarantee for any breakdown.It includes paying attention to the system stability and quick supply of spare parts and maintenance.Julong global service network consists of technicians,purchasing staff and local service offices,which could assure to offer best service in short time.
Certifications:
Features:
1.High efficiency,longer persistence.
2.Strong construction,higher security.
3.Good economic performance,lower operating cost.
4.Modular construction makes the dredger be produced,transported and assembled very quickly.
5.Spare parts are available. Completely tested before delivery.
6.The dredgers can be made according to customers' request.
Packing&delivery:
FAQ
Q1: Is Julong a reliable company?
Qingzhou Julong Environment Technology Co., Ltd. is located in Qingzhou City, Shandong Province, is a high-tech enterprise focusing on the investment, consultation, designing, manufacturing, assembly and operation management of environmental protection projects and machinery with more than 20 years' experience. Our factory covers 5800 m2 and has more than 100 employees.
Q2: What about the delivery?
We can offer our equipment by containers or bulk ship, just depend on your actual requests.
Julong always has various dredgers, aquatic weed harvesters etc. in stock. Spare parts are available too. Thus the delivery time can be shortened.
Q3: What's the payment method?
We can accept T/T, L/C, WESTERN UNION and so on.
Q4: What's the warranty?
We provide 1 year warranty and free repair if quality problems emerge within warranty peride.
Q5: Why choose Julong company?
We are factory, so we can design and manufacture the suitable dredger, water cleaning boat, mining machinery according to clients' requirements, and our equipment have good quality and competitive price.
Related products:Cutter Suction Dredger;Aquatic Cleaning Boat;Multi-function Work Boat;Mining;Bucket Chain Gold Dredger.
If you need further information about our products, please send your message to me in below card.
Audited Supplier 
){kind=link}