1. Weifang Jin Meng Dredger Co., Ltd.
Weifang Jin Meng Dredger Co.,Ltd. located in Qingzhou, Weifang City, is a manufacturer for sand dredger, work boat and gold dredging equipment,which is specialized in dredgeing equipment researching, designing, production and sales. We have professional R&D department, CAD drawing design center, quality control department and after sales service department. Our company has more than over 500 employees, including 5 professional senior engineers on river dredger building and researching, 16 designers on machinery construction, 8 engineers on quality inspecting and controlling as well as 10 after sales service engineers. |
2. River Dredger Models
River dredger different model with main specifications
| Model | Dia.Discharge pipe | Working capacity | Dredging depth | Discharge distance | Total power |
| (m3/h) | (m) | (m) | (kw) | ||
| JMD250 | 250 | 165 | 6 | 800 | 187 |
| JMD350 | 350 | 330 | 8 | 1000 | 375 |
| JMD450 | 450 | 600 | 12 | 1200 | 925 |
| JMD500 | 500 | 1050 | 15 | 1500 | 1223 |
| JMD600 | 600 | 1500 | 15 | 2000 | 2230 |
| JMD700 | 700 | 2100 | 17 | 2000 | 3250 |
| JMD500D | 500 | 1050 | 20 | 2000 | 1517 |
| JMD600D | 600 | 1500 | 20 | 2000 | 2710 |
3. JMD250 550m3 Small dredger
A. JMD250 550M3 small dredger with brief specifications as below:
| JMD250 Small dredger for river dredging | |||
Dredging Pump | Dia. Discharge pipe | 250mm | |
| Head | 35m | ||
| Max. Working capacity | 165m3/h | ||
| Discharge distance | 800m | ||
| Dredging depth | 6m | ||
Diesel Engine | 163KW | Cummins | |
| Generator | 24KW | Cummins | |
| Total power | 187KW | ||
| Oil Consumption | 28L/H | ||
| Hull Dismension | LOA*W*D | 17m×5.2m×1.5m | |
| Hydraulic system | Hydraulic pump | VICKERS America (Joint-venture) | |
| Hydraulic Motor | Italy SAI technology(Joint-venture) | ||
| Valves | REXROTH Germany (Joint-venture) | ||
| Operating system | SIEMENS PLC(Imported from Germany) | ||
| Ladder winch | Tension | 25KN | |
| Swing winch | Tension | 25KN | |
| Cutter Head | Crown-like | Φ900mm | |
| Power | 30KW | ||
B. Small dredger____ Cutter Head
Cutter head For one cutter head, there are 6 blade, 7 teeth equipped on one blade. There is material Cr. for easy-wearing proof. Cutter head is driven by hydraulic motor; cutter bearing has lubrication seal-in units. |
C. Small dredger_____Hydraulic sysyetm
Hydraulic system: The most important parts of sand mining dredge and wheel bucket dredger. The hydraulic system requirements are very high and strict; it’s the main artery of the entire sand mining dredge. Lateral traction winches, lifting winch and cutter head of the dredgers are driven by hydraulic motors. |
D. Small dredger___ Diesel engine____CUMMINS
Cummins engine Testing equipped on the discharge pipeline on the small dredger. The small dredger has Cummins engine and hydraulic system for easily operation. |
E. Small dredger______ KINDA Pump
Warman Pump Flow passage components use High wear resistant alloy Cr27 to prolonged the pump service life, pump shaft seal use packing seal which is easy to maintain , and antifriction bearings are from Janpanese brand NSK. |
F. Small dredger____ PLC control system SIEMENZ
4. FAQ for Small dredger
1). Small dredger test before-ex-factory
Do your small dredger have a test before ex-factory?
Answer: Yes, it must be. Each sand dredger must be tested very well before ex-factory so that can guarantee sand dredger performance at customers' working sites and save the time and cost for customers. Before test we will send invitation letters to the clients to invite them come and do the performance inspectation by themselves, after get the clients permition and the sand dredger will be transported to the port for loading. |
2). Small dredger ransportation in Containers
How is the small dredger transported?
Answer: There are two ways for sand dredger being transported, if the sand dredger size smaller than JMD350, it is easy to transported by containers; if the sand dredger size is larger than JMD350, it will be transported by bulks. The sand dredger structure is dismountable and assembled so that can be easy transported by trucks on road. |
3). Small dredger after sales service
What kind of service will supply after sales?
Answer: After sand dredger arrive at clients'working site, we will send two experienced enginneers for sand mining dredger body assembly and native workers' training. With the asist of ancillary equipment like excavators and cranes , the sand mining dredge assembly can be finished within 10days and training can be in one week. |
5. Welcome customers to have a visit in our factory, cars are availabe to pick you up from airport and train stations,so that we can talk sand mining dredge business and more details face to face.
6. Company Culture
Innovation Profession Integrity