Grinding Equipment

Wet Grid Ball Mill

The wet grid ball mill grinds crushed ore to the size required for mineral separation. Inside a rotating drum, steel balls cascade onto the slurry, breaking particles by impact and attrition. A grid at the discharge retains oversize material so only ground particles exit.

Request a Quote 39 models

01Model

02Drum Diameter (mm)

03Drum Length (mm)

04Motor Power (kW)

05Length (mm)

06Width (mm)

07Height (mm)

Technical parameters

Placed after crushing, the mill operates in closed circuit with a classifier. The classifier returns coarse material to the mill and sends fines onward. This limits overgrinding and stabilises product size.

The table lists 39 models identified by an MQGg code, each defined by drum diameter and length. Motor power, weight, and effective volume scale with the mill dimensions, while processing capacity depends on the ore and circuit conditions. Use the table to match a model to your process requirements after defining the grinding duty.

Wet Grid Ball Mill technical parameters, 39 models
Model	Drum Diameter (mm)	Drum Length (mm)	Motor Power (kW)	Length (mm)	Width (mm)	Height (mm)	Processing Capacity (t/h)	Effective Volume ( m3 )	Maximum Ball Load (t)	Weight (kg)
MQGg0912	900	1200	15	3666	1835	1400	0.25-1	0.6	1	4654
MQGg0918	900	1880	22	4522	1842.5	1435	0.4-2	0.9	1.66	5687
MQGg1224	1200	2400	45	5745	2352	1778	0.26-6.15	2.4	4.6	12692
MQGg1230	1200	3000	45	6345	2352	1778	0.3-7	2.9	5.7	11617
MQGg1240	1200	4000	80	7990	2210	2262	0.34-8.3	3.8	7.8	15932
MQGg1530	1500	3000	95	7253	3070	2280	2.8-9	5	10	21425
MQGg1536	1500	3600	110	8595	3185	2280	3-11	5.4	11.4	24213
MQGg1545	1500	4500	130	9680	3254	2370	3.5-12.5	7	12	27346
MQGg1557	1500	5700	130	10880	3254	2370	4-15	8.9	15	30045
MQGg1830	1800	3000	180	8250	3620	2785	4.5-27	6.65	14	31850
MQGg1836	1800	3620	180	8866	3683	2785	4.5-29	8.2	13.8	35467
MQGg1845	1800	4520	210	9808	3683	2785	5-35	10.2	19	38909
MQGg1870	1800	7020	245	12404	3783	2735	7-50	15	31.5	45166
MQGg2122	2100	2200	155	7135	4137.7	3083	5-29	6.6	20	42311
MQGg2130	2100	3000	180	8220	4220	3083	6.5-36	9	20	43100
MQGg2136	2100	3600	210	9154.5	4320	3433	7.5-42	10.8	23.5	45833
MQGg2140	2100	4000	245	9654	4320	3083	7.5-45	10.8	23.5	47263
MQGg2145	2100	4500	280	10350	4253	3125	10-50	13.5	23.6	52648
MQGg2150	2100	5000	320	10961	4297	3490	10-55	15	31	54422
MQGg2430	2400	3000	280	9023.5	4836 .4	3490	7.2-92	11.5	22.5	59545
MQGg2436	2400	3600	320	9604.5	4836 .4	3490	8-100	13.8	26	63933
MQGg2442	2400	4200	320	10204.5	4836 .4	3490	8-110	16	30	67370
MQGg2445	2400	4500	380	10893	4956 .4	4065	9-120	17	34	70362
MQGg2460	2400	6000	500	12393	4957	4065	12-150	24.9	44	84000
MQGg2730	2700	3000	320	9610	5000	3495	8-115	15.3	32	72650
MQGg2736	2700	3600	380	10409	5150	3620	12-145	17.7	37	92836
MQGg2740	2700	4000	400	10609	5150	3620	12.5-152	19	40	98454
MQGg2745	2700	4500	450	11109	5150	3620	12.5-170	22	40	100980
MQGg2747	2700	4700	475	11779	5571	4175	13-170	23	43	104615
MQGg2754	2700	5400	630	14010	6111	5130	14-190	28.7	50	125081
MQGg2760	2700	6000	630	13299	5200	3670	15-200	60	60	119546
MQGg3236	3200	3600	630	12350	6380	5200	85-90	26	44	139510
MQGg3245	3200	4500	800	13896	7200	5153	95-110	32.8	65	147588
MQGg3250	3200	5000	1000	14396	7200	5153	100-125	36.4	72	162711
MQGg3254	3200	5400	1000	14800	7200	5153	110-130	39	72	167040
MQGg3260	3200	6000	1250	15200	7200	5153	120-145	41.3	86	175210
MQGg3645	3600	4500	1250	18280	7200	5496	30-170	41.5	76	187426
MQGg3654	3600	5400	1400	19180	7700	5496	50-210	49.5	91	201455
MQGg3660	3600	6000	1600	16957	7686	5440	45-230	55	100	210818

Parameter boundary

Standard-model catalogue figures. Actual capacity, power draw and wear life shift with ore properties, feed gradation and circuit conditions. Use them to shortlist, then confirm the duty by testwork, flowsheet calculation and a written confirmation from the manufacturer.

What decides the selection

Before selecting a model, define the Bond work index or grindability of your ore, the target product P80, the required throughput, and the mill feed size. The number of grinding stages, the classification arrangement, and the density of the slurry also influence sizing. A grindability test and mass balance are essential inputs.

Bond work index or measured grinding energy
Feed and product particle size
Pulp density
Throughput
Number of grinding stages
Liner and grinding media selection
Specific energy consumption
Closed-circuit classification arrangement

All grinding equipment

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Wet Rod Mill11 models
Vertical Stirred Mill12 models
Dry Ball Mill35 models
Raymond Mill11 models

30+

years in mining equipment

1,000+

equipment models

70+

ore types processed

100+

countries reached

ISO 9001 / ISO 14001 / ISO 45001 / ISO 9712 / CE / CSA W47.1 / CNAS accredited laboratory

Send the duty, get a sized proposal

Tell us the ore, the throughput and the target product. Our process engineers come back with a flowsheet position, a model shortlist and the testwork we would need to confirm it.

Request a Quote Read the selection guide