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China Ball Mill Grinding Machine for Rock Ore Powder Making - Reliable Suppliers and Factory

The ball mill is essential equipment for transforming crushed materials into fine powder. Ideal for grinding a variety of ores and substances, it is extensively utilized across industries such as mineral processing, building materials, and chemical manufacturing. At our factory in China, we utilize high-quality steel balls as grinding media, ensuring effective fine grinding through the impact and friction between the balls and materials. This equipment is available in two grinding methods—dry and wet—catering to different processing needs. Additionally, it can be classified based on discharge methods into grate type and overflow type. As leading suppliers in the industry, we guarantee superior performance and reliability for your grinding requirements

Product Detail

Work Principle

The ball mill grind machine is composed of feeding part, discharging part, rotating part, transmission part (reducer, small transmission gear, motor, electric control) and other main parts. The motor drive the speed reducer, the speed reducer drive the small gear, the small gear drive the big gear, the big gear drive the rotary body moving.

💡 Processing & Filtration

The material enters from the feeding mouth, and ground into powder by the impact of steel balls and ore and self-grinding. There is a grate at the discharging mouth (at the big gear) for filtering. Due to continuous feeding materials, the pressure pushes the material to the discharging mouth, the small particles go out from the grate to the discharging mouth, and the big particles continue to grind.

The ore pulp surface in the cylinder is low, which reduces the over-grinding of ore and prevents the steel balls from falling out. Under the same production conditions, the production capacity of the grid mill is greater than that of the overflow mill. Rolling bearings are used at both ends of the cylinder instead of sliding bearings, which is more energy-efficient.

Specifications

Type	Rotational speed (r/min)	Balls weight (t)	Feeding size (mm)	Output size (mm)	Capacity (t/h)	Motor power (kw)	Weight (t)
Ф900×1200	36	1.0	≤20	0.074-0.4	0.5-1.5	18.5	4
Ф900×1800	36	1.5	≤20	0.074-0.4	0.5-1.5	18.5	4.5
Ф900×3000	36	2.6	≤20	0.074-0.4	1.5-4.8	22	6
Ф1200×2400	31	3.5	≤25	0.074-0.4	1.6-5	37	9.5
Ф1200×4500	31	6.5	≤25	0.074-0.4	1.6-5.8	45	13.1
Ф1500×3000	27	6.8	≤25	0.074-0.4	2-6.3	75	16
Ф1500×4500	27	10	≤25	0.074-0.4	3-9	110	19
Ф1500×5700	27	13	≤25	0.074-0.4	3.6-11	130	24
Ф1830×3000	25	10	≤25	0.074-0.4	4-11	130	25
Ф1830×3600	25	12	≤25	0.074-0.4	4.3-12	155	32
Ф1830×4500	25	15	≤25	0.074-0.4	4.5-16	155	33.7
Ф1830×6400	25	21	≤25	0.074-0.4	6-17	210	38
Ф1830×7000	25	23	≤25	0.074-0.4	6.5-18	210	43
Ф2100×3000	23	13	≤25	0.074-0.4	5-15	180	32
Ф2100×3600	23	16	≤25	0.074-0.4	6-17	210	35.8
Ф2100×4500	23	20	≤25	0.074-0.4	7-21	245	42.6
Ф2100×7000	23	31	≤25	0.074-0.4	8-25	280	55

Frequently Asked Questions

Q: How does the ball mill grind machine work?

The motor drives a speed reducer and small gear, which rotates the big gear and the main rotary body. Materials enter through the feeding mouth and are ground into powder by the impact of steel balls, ore, and self-grinding actions inside the rotating cylinder.

Q: What is the function of the grate at the discharging mouth?

The grate filters the ground material. Continuous feeding builds pressure that pushes the material toward the discharging mouth. Small, properly ground particles pass through the grate to discharge, while larger particles are retained inside to continue grinding.

Q: Why is a grid mill more efficient than an overflow mill?

Under identical production conditions, the grid mill maintains a lower ore pulp surface level in the cylinder. This reduces over-grinding of the ore and prevents steel balls from falling out, resulting in a higher overall production capacity.

Q: How is the energy efficiency of this ball mill improved?

Energy efficiency is improved by utilizing rolling bearings at both ends of the cylinder instead of traditional sliding bearings, which significantly reduces friction and energy consumption.

Q: What is the output size range for these ball mills?

Across the various models listed in the specifications, the output size of the ground material consistently ranges from 0.074 mm to 0.4 mm.