The drag head is the suction port of TSHD (trailing suction hopper dredger) with dredging pump, as the core component of the dredging device assembly.
This type of drag head fit movable cover, jaw plates has 2 parts, which is able to adjust suction gap and make slurry density at proper level. When excessive resistance by obstruction occurs, the safety pin breaks, back jaw plat will rise and drag head is detached.
This drag head is suitable for dredging mud, coarse sand, loose sand. It has not enough suction force for fine sand.
| No | Diameter of Suction Pipe
D(mm) |
Length of Drag head L(mm) | Length of Movable Part
L1(mm) |
Width of Drag head B(mm) | Width of Movable Part
B1(mm) |
| 1 | 420 | 1300 | 1000 | 1600 | 1340 |
| 2 | 550 | 1525 | 1100 | 1800 | 1560 |
| 3 | 600 | 1560 | 1900 | 1850 | 1560 |
| 4 | 650 | 1900 | 1240 | 2650 | 2550 |
| 5 | 700 | 1935 | 1255 | 2700 | 2600 |
| 6 | 7500 | 1950 | 1300 | 2810 | 2700 |
| 7 | 800 | 2000 | 1550 | 2940 | 2750 |
| 8 | 900 | 2350 | 1650 | 3200 | 2850 |
| 9 | 1000 | 2850 | 1760 | 3700 | 3250 |
| 10 | 1200 | 3300 | 1850 | 4240 | 3700 |
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We supply dredging equipment including dredging pump, diesel engine, marine gearbox, transfer case, hydraulic pump station, hydraulic winch, electric winch, marine electric motor,windlass, instrument, monitoring system, and outfitting as steel rope, anchor, bollard,chain for mooring and towing.
Also special device as sediment production measurement system, navigation system can be provided as customized requirements.
We design and match dredging equipment for repair and maintenance of old dredgers, new dredgers which are built in your local shipyard, and dredgers we design and provide for your owners.
We supply diesel engine brands CUMMINS, CATERPILLAR, MITSUBISHI, MAN，WEICHAI,YUCHAI, ZICHAI,NINGBO ZHONGCE and others.
Yes, we participate dredging and engineering related exhibitions, such as BAUMA CHINA.
Our office is in Weifang city, Shandong province and we are opening offices in other cities which will be updated. Our factories of dredging equipment including engine, dredging pump, hydraulic winch, engine cooler locate in Weifang, Shanghai, Nantong and other cities.
We generally accept T/T, L/C. We can give financial support in term of L/C 90days or 120days.
Yes, we can send our engineer to project site for installation supervision and training service. There will be a separate technical service agreement which list technical service range, how many days and how many engineers and workers. Generally 15days, and 2 engineers for installation supervision is enough.
Project owner will also take charge of round ticket, VISA, transportation, food and accommodation in the country of project site for engineers and workers who will be involved in the technical service.
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