Rod Mill

The Professional Solution for Coarse Grinding and Sand Production

The Rod Mill is a heavy-duty industrial grinding mill designed for primary open-circuit grinding. Unlike ball mills that produce fine powders, our rod mill utilizes steel rods as the grinding media to deliver a more uniform particle size distribution with minimal over-grinding.

It is the ideal equipment for:

• Artificial sand making (Capacity: 15-260 t/h, Output: 0-5mm cubical shape)

• Gravity or magnetic separation plants (Prevents sliming of heavy minerals)

• Processing tungsten, tin, and other brittle materials

Available in wet and dry types, with overflow or end peripheral discharge options.

Why Engineers Choose Our Rod Mill Over Traditional Crushers?

1. ⚙️ Uniform Particle Size (No Over-grinding)

The "line contact" grinding action of the steel rods produces a narrow particle size range. You get fewer coarse rejects and less fine dust, ensuring a consistent feed for downstream flotation or screening.

2. ⚡ 15%-20% Lower Energy Consumption

Compared to cone crushers and short-head crushers processing the same material, our rod mill saves significant power. The open-circuit design reduces circulating loads, cutting electricity bills by up to 20%.

3.⚒️Quick Discharge & High Capacity

Equipped with a larger diameter trunnion and optimized speed, the material flows through the mill quickly. For sand making projects, the capacity reaches 260 T/H with a discharge size as fine as 0.8mm.

4.⚙️Long-lasting Wear Parts

• Liner: High manganese steel / Rubber (customizable)

• Rods: High carbon alloy steel (HRC 45-55)

• Warranty: Performance guarantee of 18-24 months for wearing parts under standard operation.

5. ✅ Easy Maintenance

Manual or electric lubrication system for trunnion bearings. Slow-speed auxiliary drive for easy rotation during liner replacement.

How the Rod Mill Works?

The working principle of the rod mill is based on line contact grinding:

1. ⚙️Feeding: Material (≤50mm) enters the cylinder through the feeding chute.

2. ⚙️Rotation & Lifting: The motor drives the cylinder rotating via a gearbox. As it rotates, the internal steel rods (usually 40-100mm in diameter) are lifted to a certain height by the liners.

3. ⚙️Grinding Action:

• Unlike ball mills (point contact), the rods slide and roll over each other in a cascade motion.

• The material is trapped between the rotating rods and crushed via compression and shearing.

• The "line contact" ensures that coarse particles are crushed first, while finer particles pass through quickly, preventing unnecessary fine grinding.

4. ⚙️Discharge: Once ground to the target size, the slurry or dry material flows out through the hollow shaft discharge end.