What is a wet pan mill?
Wet pan mill is also called wet grinding mill or gold grinding machine. It is the first choice of grinding equipment for the small and medium milling plants in Africa and South America.
The wet pan mill is the ideal equipment for replacing ball mills due to its low investment, high output, ease of use and maintenance, and quick cost recovery.
It is used for re-crushing materials after initial crushing. It has a capacity of 1-50 t/h, with a maximum feed size of 30 mm and an output size range of 0.074-0.6 mm.
Can I grind gold ore using a wet pan mill?
Yes, the wet pan mill is particularly suitable for grinding rock gold ore, which can be ground into 100-150 mesh. Due to its low cost and high production efficiency, customers from Sudan, Egypt, and South Africa are interested in purchasing such gold mining machines. The most exciting aspect is that you can obtain pure gold directly through wet grinding, making it highly suitable for individuals looking to start a small business.
In addition, a wet pan mill is widely used for separating ferrous metals, non-ferrous metals, and non-metallic minerals such as silver, lead, zinc, iron, molybdenum, copper, antimony. It can also be used for cement and silicate products.
How does a wet pan mill work?
1. Structure of a wet pan mill
There are different types of wet pan mills: single-roller type, double-roller type, and three-roller type. The most commonly used type is the double-roller wet pan mill. Two feeders are used to feed the center material onto the inner grinding road.
The main components of a wet pan mill include the frame, water basin, grinding roller(s), crankshaft(s), grinding base, reducer,and motor.
Grinding roller: Made of 6% manganese alloy steel, with a minimum service life of 3 years.
Ring: Constructed from standard 85 mm high-manganese alloy steel, which is harder and stronger than common iron types. The ring surface is smoother to prevent the absorption of mercury and gold into the holes.
Fote Water Basin is made of a 5 mm thick steel plate, ensuring smooth operation of the pan mill with its excellent welding finish. In contrast, other water basins on the market have a thickness of only 3 mm, making them prone to shaking.
Fote Frame: Significantly enhances wear resistance at this joint surface, prolonging the machine’s lifespan. The frame tends to wear easily due to material and dust accumulation on the joint surface between the square iron and frame. A high-quality frame can reduce maintenance costs for you.
2. How to use and maintain a wet pan mill?
Ensure that the machine is empty before starting, as it may shut down if there is material inside. Clean up any remaining ore in the machine before starting.
Start the wet pan mill and let it run idle for 3-5 minutes. Only put raw materials into the machine after it runs normally.
When feeding, screen the materials to prevent iron and hard metal debris from entering and damaging the wet pan mill plant.
Strictly feed the specified amount of ore, avoiding overloading. Use a feeder to evenly distribute the material.
Regularly check for loose screws.
Regularly add clean and well-sealed lubricating oil to the bearing part. Promptly replace any damaged bearings to ensure normal operation of gears and bearings.
While operating, check for abnormal sounds in the reducer box or bearing part, excessive temperature, or high motor current. If any of these occur, immediately shut down the machine for repair.
For safety purposes, remove the motor V-belt when examining and repairing the machine.
Cleaning is crucial for maintaining a wet pan mill’s efficiency; excessive debris or dust on its surface will directly impact its performance.
3. Models of wet pan mill
The models of wet pan mill are named according to the diameter of the roller.
The technical parameters of wet pan mill
| Model | Diameter(mm) | wheel(mm) | Power(KW) | Length(mm) | Reducer model | Weight(Tons) | Process capacity per day (Tons) | One 40-foot container can hold |
| 900 | 1700 | 140-150 | 3 | 2100 | 350 | 2.2 | 2~3 | 10sets |
| 1100 | 2000 | 160-170 | 5.5 | 2700 | 450 | 4 | 3~6 | 5sets |
| 1100x3wheel | 2000 | 160-170 | 7.5 | 2700 | 450 | 5.5 | 6~8 | 5sets |
| 1200 | 1800 | 160-170 | 7.5 | 2300 | 450 | 4.7 | 4~7 | 5sets |
| 1200 | 1800 | 190-200 | 7.5 | 2700 | 450 | 5.1 | 5~8 | 5sets |
| 1400 | 2000 | 250 | 15 | 2780 | 500 | 8.5 | 12~15 | 3sets |
| 1500X300 | 2050 | 300 | 22 | 2780 | 500 | 10.5 | 20 | 2sets |
| 1500X350 | 2050 | 350 | 22 | 2780 | 500 | 11.5 | 25 | 2sets |
| 1500X400 | 2100 | 400 | 22 | 2780 | 650 | 12.5 | 30 | 2sets |
| 1500x300x3wheel | 2100 | 300 | 30 | 2800 | 750 | 13.5 | 30 | 2sets |
| 1600X300 | 2050 | 300 | 22 | 2800 | 650 | 12.5 | 28 | 2sets |
| 1600X350 | 2050 | 350 | 30 | 2800 | 650 | 13.5 | 40 | 2sets |
| 1600X400 | 2100 | 400 | 37 | 2800 | 750 | 14.5 | 50 | 2sets |
The wet pan mill operates in conjunction with a shaking table, which is a gold concentration machine known for its high recovery rate of up to 95%.
Several African customers from Uganda, Tanzania, Zimbabwe, and Kenya have expressed their preference for using a wet pan mill in combination with a shaking table to effectively separate rock gold ore.
Small-scale rock gold processing plant
This plant can be equipped with a jaw crusher, wet pan mill, and shaking table. The output is 1-2 tons per hour. The gold processing plant offers the advantages of low investment cost and high efficiency.
Why choose Fote Wet Pan Mill?
Compared to other wet pan mills on the market, Fote Wet Pan Mill is the most cost-effective grinding equipment. Even a very small gold processing plant can afford it. Its economic benefits are beyond imagination.
Advantages of Fote Wet Pan Mill:
Fote Wet Pan Mill costs less than a ball mill or similar pan mills in the market. Our price starts at $900.
High grinding efficiency with a production capacity of up to 50 tons per hour.
Uniform grinding with an output size as small as 0.074 mm.
Low noise, low energy consumption, and safe operation.
Easy operation and maintenance.
The grinding roller is highly wear-resistant, while the entire machine is made of high-manganese alloy steel for longer service life.
Complete system include below:
Jaw crusher for rock gold crushing to small size
Wet pan mill for small size rock gold grindding to powder
centrifugal machine for gold collect
shaking table for gold seperate
