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RETSCH offers the largest selection of laboratory ball mills in the market! Ball mills are among the most variable and effective tools when it comes to size reduction of hard, brittle or fibrous materials.

Installed at the end of grinding mills and scrubbers, trommel screening is an efficient, mechanically robust method of screening coarse particles, with a trommel screen machine delivering excellent performance over a long service life.

The trommel screen also knowns as a rotary screen, is a versatile screening machine that can size and separate feed materials in the mining, quarry, aggregate, and dirt industry. Hongji Trommel Screens can precisely classify materials into multiple sizes from one unit.

A 5 m diameter x 5.5 m long SAG mill trommel destined for a mine in Mexico. Optimised for extreme SAG Mill duty. Considering the size and complexity of large SAG mill trommel frames, the latest Finite Element Analysis techniques are used to reduce fatigue stresses and ensure structural integrity.

 — The Ball Mill Discharge Spiral Screen is designed to make a sized product, particularly for "Sub-A" Unit Flotation Cells and concentrating tables. It is also used to screen out and return to the ball mill any oversize in a ball mill-classifier circuit when using a (Selective) Mineral Jig.

 — 1. The sign of "swollen belly" Just like a bloated stomach, if the amount of grinding exceeds the maximum capacity and discharge capacity, it will cause the mill shell to loses its grinding capacity, and that's why we call it "swollen belly". 3Tips for mentioning you whether it is "swollen belly"

The trommel has a slotted screening surface, and material that is too large to pass through the trommel goes into the ball mill scats bunker. Scats are two different materials: Chips from grinding balls that have worn until they are small and light enough to be carried out of the mill by the slurry.

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The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous and non-ferrous metals.