Spiral Classifiers are widely applied to shunt mineral sands by forming a closed-circuit circulation with ball mill in the dressing plant, or applied to classify the ore sand and fine silt in the gravity dressing plant.

1. All lubricating points should be lubricated by sodium base grease or calcium base grease.

2. Workers should check the inside of reduction box to make sure whether the lubricating oil is on the oil needle scribed line, and the oil should be replaced every six months.

3. Workers should often check the lower support, and check whether the middle bearing pad, bearing and seal ring are worn or broken, in order to replace timely.

4. Bearing must be lubricated every 4 hours by pouring high pressure oil into the bearing with manual oil pump, and in that way to keep sealability of the bearing.

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