China Yongli Made 300TPH 25m dredging depth bucket chain sand dredger
1.Basic Information
China Qingzhou Yongli Mining And Dredging Machinery Co.,Ltd has more than than 30 year's experience in designing,producing and manufacturing bucket chain sand dredger/bucket chain sand dredging ship. This kind of sand dredger has good performance in this terrain which has a lot of pebbles and stones. The bucket chain sand dredger can also be equipped with the pulsating sluice box or pulsating jigger for gold or diamond recovery.
The main part of this bucket chain sand dredger/bucket chain sand dredging ship is pontoons, dredging arm,dredging buckets, trommel screen, convey belt, diesel generator ,operating room and so on.

2. Request For Reply
In order to supply you with one for model of sand dredger/bucket chain sand dredger/bucket chain sand dredging ship,would you please kindly take some time to reply me below questions:
How many cubic meter per hour for the deal capacity of this sand dredger/bucket chain sand dredger/bucket chain sand dredging ship?
2. How many meters of the dredging depth of this sand dredger/bucket chain sand dredger/bucket chain sand dredging ship?
3. In the raw mining area,the sand and stone percentange raio ?
4.For the diesel genrator of this sand dredger/bucket chain sand dredger/bucket chain sand dredging ship,will you choose weichai or cummins?
5.If you could supply some pictures or videos of your mining area?
3.How to Maintenance the Bucket Chain Sand Dredegr
Taking care of a bucket chain sand dredger is more than just a chore; it is about protecting a heavy investment and making sure the machine does not quit on you in the middle of a job. These machines work in harsh underwater environments, so wear and tear are constant.
1. Daily Lubrication is Non-Negotiable
The bucket chain consists of hundreds of pins and bushes constantly grinding against each other under heavy loads. If you skip greasing for even a day, you’re looking at metal-on-metal friction that will eat through your components. Focus on:
· The Main Drive: Ensure the sprocket and chain link contact points are well-lubricated.
· Lower Tumbler: Since this is submerged, use water-resistant, heavy-duty grease to keep sand and silt from entering the seals.
2. Inspect the Bucket Chain and Teeth
The buckets are the "teeth" of your operation. Check daily for:
· Loose Pins: Vibration can rattle pins loose. A lost pin can cause the entire chain to snap, leading to hours of downtime.
· Worn Lips/Teeth: Sand is highly abrasive. When the leading edges of the buckets become blunt, the dredger consumes more fuel to move less material. Replace or weld-on wear plates before the main bucket structure is damaged.
3. Maintain the Hydraulic and Power Systems
Your engine and hydraulic pumps are the heart of the dredger.
· Filters: Change hydraulic oil filters regularly. Small sand particles in the oil will destroy a pump's internal valves in no time.
· Cooling: Dredging creates a lot of heat. Make sure the heat exchangers are free of debris so the engine doesn't overheat during long shifts.
4. Hull and Structural Integrity
Since the dredger lives in water, corrosion is your silent enemy.
· Check for Leaks: Regularly inspect the pontoon interiors for water ingress.
· Sacrificial Anodes: Make sure the zinc anodes on the hull are still there. If they’ve dissolved, your hull is the next thing the salt or minerals will attack.
Summary Checklist
Frequency | Action Item |
Daily | Grease chain pins, check oil levels, inspect bucket teeth. |
Weekly | Check tension of the bucket chain; inspect winch cables for fraying. |
Monthly | Test all emergency shut-offs; inspect the hull for corrosion. |
Keeping a tight schedule might feel tedious, but it’s much cheaper than a major mid-river repair. Treat the machine well, and it will keep the sand moving.
For more technical specifics, you can check the Maintenance Manuals for your specific brand.
