All posts by: gkmill

No matter traditional ，the new machine need a run-in period for the parts. The run-in period of Raymond mill is about 60 hours, the period is an important step to ensure normally operating, reduce failure rate and increase service life. But, some users ignored the special technical requirement during run-in period. 1.Fast wearing For the […]

As an important equipment in non-metal mineral deep processing, Raymond mills are widely applied in mines, cement factories and other enterprises. For the special character and high technology, Raymond mills are good equipment of the market. However, in Raymond mill operation, somethings may cause lower capacity and efficiency. 1.Material hardness Harder material will be more […]

The star rack is an important part of Raymond mill system, but it is also neglectful. People is familiar with the roller, ring and other wearing parts, but the star rack is often neglected. The star rack is the supporting of the whole grinding system, including the shovel blade, main bearing and rollers. The star […]

1. Increase roller diameter for about 10%, increase grinding ring diameter at the same time; 2. Rollers are all fine processed to ensure a well contact of roller and ring. Well-processed parts will not only increase grinding efficiency, but also offer longer service life. Of cause, the material of roller and ring are all improved. […]

There maybe resonance in Vertical Mill operation. When the machine is operating under certain driving force, resonance will largely increase the vibration and may cause damage. The rotation speed causing resonance is called ‘danger rotation speed’. This could be danger in grinding mill operating. To reduce parts resonance, manufacturers must try to increase the value […]

Ultra-fine mills are superstars in modern industry. In paper making industry, 10%-20% ultra-fine powder will be added. In high grade art paper producing, 40% of kaolin ultra-fine powder is added. 30%-50% ultra-fine powder is added to plastic product, and for PVC product, the number can be up to 70%. Nowadays, ultra-fine powder is widely applied […]