XMGQ φ305×305 mm Bond Work-Index Ball Mill for Ore Grindability Testing with 70±0.5 r/min Speed and 0.75kW Motor

The XMGQ‑φ305*305 work‑index ball mill is a dedicated standard laboratory instrument for the mining‑processing industry. This test mill is designed for measuring the grinding work‑index (unit: kWh/t) of ore samples, furnace slag and other ground raw materials.

The measured grindability index serves as essential data for industrial‑scale ball‑mill selection, grinding‑circuit layout and grinding power consumption calculation for mineral‑processing plants. It is widely adopted by mining enterprises, testing institutes, smelters and university mining‑engineering laboratories worldwide.

Our laboratory work‑index ball mill is used to detect the grind‑resistance property of mineral samples. Test‑available raw‑materials contain:

• Base‑metal & non‑ferrous metal ore
• Non‑metallic mineral specimens
• Smelting furnace slag
• Gangue, rock and other industrial grinding samples

Its grinding principle stays consistent with industrial production ball mills.

1. Put mineral samples of fixed particle‑size and mass inside the grinding cylinder
2. Load standard‑formula alloy steel balls as the grinding medium
3. Conduct dry‑type grinding under the standard rotational speed 70±0.5 r/min
4. Screen and weigh the ground mineral product after every grinding cycle
5. Repeat cyclic grinding‑and‑sieving operations
6. Calculate the final grinding work‑index (kWh/t) from your test records

Notice: The total weight and specifications of the complete steel‑ball set cannot be changed casually. The quantity for each‑size steel ball supports proper adjustment.

• Ore grindability experiment inside mine‑enterprise mineral‑processing laboratories
• Mining‑engineering university teaching and research labs
• Third‑party mineral inspection and mining research institutes
• Smelter plant furnace‑slag grinding‑performance inspection
• R&D test for new mineral‑processing technical solutions

• 100% factory direct supply with competitive factory price
• 1‑year quality warranty for the complete machine
• Supplied English‑language operation manual and Bond work‑index test guidance document
• Lifetime‑available online technical consultation on grinding‑test procedure
• Ready‑made spare‑parts for control cabinet, driving motor and consumable grinding steel balls