YGM High-pressure Grinding Mill

YGM high pressure grinding mill (also known as YGM high pressure suspension roller grinding mill) is an efficient and energy-saving industrial grinding equipment, which is an upgraded version of Raymond mill.

It is mainly used to process non-metallic ores (such as feldspar, marble, barite, limestone, gypsum and other more than 400 kinds of non-flammable and explosive materials with Mohs hardness ≤ 9.3 and humidity ≤ 6%) into ultra-fine powder. The finished product particle size range is 30-425 mesh (the finest can reach 2500 mesh, about 0.005 mm), and the production capacity is 0.5-55 tons/hour. It is currently widely used in mining, building materials, chemical industry, metallurgy and other fields.

Technical Features

1. High pressure rolling pressure

• The high-pressure spring provides 800-1200 kg of grinding force, which is 1.2 times higher than the traditional Raymond grinder and increases the output by 20%-30%.

2. High efficiency and energy saving

• With the same output and fineness, the system energy consumption is only 1/3 of that of the air flow mill, and it can directly process raw materials ≤35 mm, eliminating the pre-crushing step and reducing investment costs.

3. The fineness of the finished product is adjustable

• By adjusting the speed of the analyzer, the particle size of the finished product can be flexibly adjusted between 80-2500 mesh (0.025 mm to 0.005 mm), and the average particle size can reach 6.5 microns.

4. Structural optimization

• Multi-stage sealed grinding device, with significant effect of preventing powder leakage;

• Gasket protection design reduces host wear and facilitates maintenance;

• Modular structure, easy to install and transport.

5. Environmental protection

• Closed-loop air duct design and efficient dust removal system ensure dust emission in line with national standards and a clean working environment.

Application Scenario

• Building materials industry: preparation of cement raw materials, limestone powder and gypsum powder.

• Chemical industry: deep processing of non-metallic minerals such as barite, bentonite and graphite.

• Metallurgical industry: Preparation of ore powder to improve resource utilization.

1. Grinding device

YGM grinding mill presses the grinding roller against the inner surface of the grinding ring through high-pressure springs (pressure 1000-1500 kg), forming a high grinding pressure. When the motor drives the main shaft to rotate, the grinding roller rolls inside the grinding ring and rotates around its own axis. The scraper sends the material into the space between the grinding roller and the grinding ring for crushing.

2. Grading system

The motor drives the impeller of the analyzer to rotate. The higher the impeller speed, the finer the separated powder. Qualified fine powder is collected in the cyclone separator through the air flow, and the coarse powder is returned to the main machine for re-grinding.

3. Circulation air path

The air flow circulates between the fan, grinding shell and cyclone separator, and cooperates with the bag dust collector to purify the dust, ensuring a clean workshop environment that meets national emission standards. YGM grinding mill structure diagram

Model	YGM75	YGM85	YGM95	YGM130	YGM160	YGM190
Grinding ring Dia x Height (mm)	φ780×150	φ830×140	φ950X170	φ1280X210	φ1600X270	φ1900X320
Roller Number (pcs)	3	3	4	5	6	6
Roller Size L x H (mm)	φ260×150	φ270×140	φ310X170	φ430X210	φ530X270	φ630X320
Max Input size (mm)	15	20	25	30	35	40
Output size (mm)	1.6-0.045	1.6-0.045	1.6-0.045	1.6-0.045	1.6-0.045	1.6-0.045
Capacity (t/h)	1 – 3	1.2-4	2.1-5.6	2.5-9.5	8 – 16	18-36
Power (kw)	18.5	22	37	75	185	250
Overall Dimension (mm)	4300x3500x5100	5300x4100x5200	7100x5900x7900	7900x8000x9700	12550×5700×8355	11200x8530x9685