Grinder Mill

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Overview of Raymond Mill

After many years of practice and improvement, the structure of Raymond Mill is getting perfect by low consumption, low investment, environment friendly, small occupation area, and more efficient than the traditional Mill.

The application of Raymond Mill

Raymond Mill is mainly applied to the powder processing of mineral products in industries of metallurgy, construction, chemistry, and mining etc. The Raymond Mill can produce powder from more than 280 kinds of non-flammable and non-explosive mineral materials with Mohs hardness below 7 and humidity below 6%, such as barite, limestone, quartz, calcite, granite, porcelain clay, basalt, gypsum etc. The final size of the Raymond Mill is between 613micron and 440 micron(0.613mm—0.044mm). Through the function of separator and blower, the Raymond Mill can meet different customers’ demand.

Features & Benefits of Raymond Mill

1. The whole plant is a vertical structure of strong systematic characteristic, so the Raymond Mill occupies small area. From crushing of raw material to grinding and packing , the Raymond Mill is an independent production system.
2. Compared with other Milling plants, the Raymond Mill’s passing ratio achieves 99%, which is what other grinding Mill can not reach;
3. Driving system of main frame adopts airtight gearing and pulley, drives smoothly and operates reliably,
4. The electric control system is centralized controlled, so the automaticity is high, no people are needed in the operating room.
5. Main parts of the Raymond Mill are made from cast and steel of high quality. Such strict techniques insure the durability of whole plant.

Working Principle of Raymond Mill

Firstly, raw material is crushed by jaw crusher to the size required, and then the crushed materials are elevated into a hopper from which the material is transported through the electro-magnetic vibrating feeder evenly and continuously into the grinding chamber of the Raymond Mill for powder-processing. The rollers oscillate outward to press the ring because of the centrifugal force and the shovel scoops up the materials, send to the middle between ring and roller to accomplish the grind. After this, the ground stuff is carried by the air from the blower into the separator for screening. The fine powers are blow into the cyclone collector and are poured out through the output-powder valve as the final products and the rough stuff after the screening will be recycled back into the grinding chamber for regrinding. The airflow system of the Raymond Mill is closely sealed up and circulated under condition of negative and positive pressure.

Specifications of Raymond Mill

Model			3R2115	3R2615	3R2715	3R3016	4R3216
Roller	Number(pcs)		3	3	3	3	4
	Diameter(mm)		210	260	270	300	320
	Height(mm)		150	150	140	160	160
Ring	Inner Diameter(mm)		630	780	830	880	970
	Height(mm)		150	150	140	160	160
Max. Feed Size (mm)			15	15-20	15-20	15-20	20-25
Finished Size(mm)			0.044-0.165	0.044-0.165	0.044-0.165	0.044-0.165	0.044-0.165
Power(kw)			15	18.5	22	30	37
Finished Size(mm)	0.125	Capacity  (t/h)	1.2-1.8	1.8-2.5	2.3-2.8	0.6-1.2	3.2-4.5
	0.075		0.6-1.2	1.2-1.8	1.8-2.3	1.9-2.6	2.4-3.1
	0.044		0.6-1.0	0.8-1.2	0.9-1.7	1-1.9	1.8-2.5