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It's basically the workhorse after the crusher, and we see it mostly in mines and cement plants where you're reducing ore down to a fine powder, but honestly, it handles refractory or silicate just as well—we've shipped units for gold ore and iron ore both, though it's overkill for anything that doesn't need that 0.074mm to 0.6mm range.
The MQG series runs on an AC motor, 15 to 2200KW depending on how much you're pushing, and the drum spins at about 20-22 r/min which is pretty standard for this size class; feed material needs to be 25mm or less going in, and we've got capacity options form 1.5 tph up to 163 tph, so you're not locked into one throughput.
What it does is use steel, rubber, or ceramic liners inside (your choice, depends on what you're grinding and whether contamination matters), and discharge can be either grate type or overflow type—most buyers go with the grate for coarser output, but the overflow gives you that finer 0.074mm end if that's your target.
You'll get a 12-month warranty with techncial support and spare parts supply after that, which covers the usual wear items, though the liners are consumable and you'll need to budget for replacing them every year or so depending on runtime; customiztion is avaliable, so our company can tweak the motor or liner matrial, but the base frame and gear transmission are fixed.
Lead time is usually 30 to 45 days on a standard unit, but we've had to push to 60 when ceramic liners are specified—check with us before ordering, as we don't always stock every liner combination. It's not suited for food-grade or pharmaceutical milling, just so you know, because the tolerances aren't tight enough for that.
You can choose from steel, rubber, or ceramic liners. For gold ore, steel liners are a common choice due to their durability and impact resistance. Rubber works well for finer grinding and less noise, while ceramic is best if you need to avoid metal contamination.
We typically require a minimum order of 1 unit for customized ball mills. For standard models, we can be flexible, but custom specs usually start at one full machine.
Lead time is usually around 30 to 45 days after order confirmation and deposit. This includes custom fabrication and quality checks. We’ll give you a more precise timeline based on your specific capacity and liner choice.
Yes, we can supply material certificates for the steel and other components upon request. We also provide test reports for the motor and gearbox to confirm they meet the specified power and rotation speed.
Store the mill in a dry, covered area, preferably indoors, to prevent rust and damage. Keep it off the ground on wooden blocks or pallets, and cover the motor and bearings with a tarp if stored outside for a short period.
