Grinding Mills

World's Outstanding Supplier and Service Provider of Mineral Grinding Mills

For over 60 years, CITIC Heavy Industries (CITIC HIC) has focused on providing global customers with reliable, energy-saving and high-efficiency mineral grinding equipment relying on its advantages of technological development strength, core manufacturing expertise, strict quality control measures and excellent customer service.

Our technical team and sales experts can help you identify the best solution for your mineral grinding applications through a complete service system including mineralogical analysis, grinding mill selection, process optimization, equipment design & manufacturing, on-site installation & commissioning, spare parts supplying, operation training, and so forth.

We understand high-efficiency grinding mills don't happen by accident, what ultimately matters to it is based on deliberate integration of equipment design, manufacturing process optimization, material selection and quality assurance.

To date, CITIC HIC has cumulatively produced and delivered over 1,550 mineral grinding mills, with a total installed power of 3,900MW. Our large-size grinding mills hold a market share of 85% in the domestic mining market, and have been exported to more than 50 countries and regions. This means that we are a world's leading manufacturer and supplier of mineral grinding mills.

All grinding mills we provide are certified in according with ASTM, NEMA, AGMA, AWS and ANSI standards, and can be manufactured in accordance with other international standards or your local safety standards.

Key Features

Developer of national standards for grinding mills
Holder of more than 80 patents, including over 30 invention patents
Winner of the First Batch of Single-item Champion Demonstration Enterprise in Manufacturing Grinding Mill, prescribed by National Ministry of Industry

Core Technology

Technical Specifications

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
AG-40×□	4000	1400-3600	17-42	2-6	16.2	220-540
AG-45×□	4500	1600-4100	24-61	3-9	15.3	320-830
AG-50×□	5000	1800-4500	34-83	5-12	14.5	500-1200
AG-55×□	5500	1800-5000	42-112	6-16	13.8	630-1700
AG-61×□	6100	2400-5500	69-152	10-21	13.1	1050-2400
AG-67×□	6700	2600-6000	93-201	13-28	12.5	1500-3300
AG-73×□	7300	2800-6600	120-264	17-37	12	2000-4500
AG-80×□	8000	3200-7200	160-347	22-48	11.4	2800-6200
AG-86×□	8600	3400-7700	197-429	27-60	11	3500-7900
AG-92×□	9200	3700-8300	246-530	34-74	10.7	4500-10000
AG-98×□	9800	3900-8800	296-640	41-89	10.3	5600-12500
AG-104×□	10400	4200-9400	359-770	50-107	10	7000-15400
AG-110×□	11000	4400-9900	422-909	59-127	9.8	8400-19000
AG-116×□	11600	4600-10400	492-1064	69-148	9.5	10000-22000
AG-122×□	12200	4900-11000	580-1246	81-174	9.2	12000-27000

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
SAG-40×□	4000	1600-3600	19-42	13-29	16.2	310-710
SAG-45×□	4500	1800-4100	27-61	19-43	15.3	470-1100
SAG-50×□	5000	2000-4500	38-83	27-58	14.5	700-1500
SAG-55×□	5500	2200-5000	51-112	36-78	13.8	960-2200
SAG-61×□	6100	2400-5500	69-152	48-106	13.1	1400-3100
SAG-67×□	6700	2700-6000	93-201	65-140	12.5	2000-4300
SAG-73×□	7300	2900-6600	120-264	84-184	12	2600-5900
SAG-80×□	8000	3200-7200	160-347	112-242	11.4	3600-8100
SAG-86×□	8600	3400-7700	197-429	137-299	11	4600-10000
SAG-92×□	9200	3700-8300	246-530	172-370	10.7	5900-13000
SAG-98×□	9800	3900-8800	296-640	206-446	10.3	7300-16000
SAG-104×□	10400	4200-9400	359-770	250-537	10	9100-20000
SAG-110×□	11000	4400-9900	422-909	294-634	9.8	11000-25000
SAG-116×□	11600	4600-10400	492-1064	343-742	9.5	13000-30000
SAG-122×□	12200	4900-11000	580-1246	405-869	9.2	16000-36000

1. Mill diameter refers to the diameter inside the mill shell, while the mill length refers to the distance between two flanged ends. Effective grinding length is determined by the sizes of end liner and grate. Effective volume is the available volume inside the mill excluding the volume of shell liners and end liners, but the volume of two end cones is contained.
2. The particle size should not greater than 350mm.
3. The maximum ball loading capacity of AG mill is calculated at 3% of effective mill volume, while the SAG mill with ball loading capacity at 15% of mill volume.
4. The operating speed is usually 75% of critical speed of mill, the variable frequency speed regulation is ideally somewhere between 5% to 10% of rated speed.

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
MQY-09×□	900	1100-2100	0.6-1.2	1-2	34.8-39.5	11-15
MQY-12×□	1200	1600-2900	1.6-2.8	3-5	29.8-33.9	22-45
MQY-15×□	1500	2000-3600	3.2-5.7	6-11	26.5-30.1	55-110
MQY-21×□	2100	2700-5000	9-16	17-30	22.3-25.3	160-315
MQY-24×□	2400	3100-5800	13-24	24-45	20.8-23.6	250-460
MQY-27×□	2700	3500-6500	19-34	35-65	19.6-22.2	380-710
MQY-32×□	3200	4200-7700	32-58	58-108	17.9-20.4	700-1300
MQY-36×□	3600	4500-8600	45-83	84-154	16.9-19.2	1000-1900
MQY-40×□	4000	5100-8800	61-103	108-182	15.6-17.3	1400-2400
MQY-43×□	4300	5500-9400	80-132	141-233	15.0-16.7	1900-3100
MQY-45×□	4500	5800-9800	92-151	163-267	14.7-16.3	2200-3600
MQY-48×□	4800	6100-10400	111-184	196-325	14.2-15.8	2700-4500
MQY-50×□	5000	6400-11000	126-210	223-370	13.9-15.5	3100-5200
MQY-52×□	5200	6700-11300	142-232	250-410	13.6-15.2	3600-6000
MQY-55×□	5500	7100-11500	169-266	298-469	12.9-14.0	4000-6300
MQY-58×□	5800	7400-12000	196-310	319-504	12.6-13.6	4800-7600
MQY-60×□	6000	7700-12500	219-345	356-561	12.3-13.4	5400-8600
MQY-62×□	6200	8000-12600	242-372	371-571	12.1-13.2	5900-9200
MQY-64×□	6400	8200-13000	264-409	406-628	11.9-13.0	6500-10100
MQY-67×□	6700	8600-13500	304-467	467-716	11.7-12.7	7700-11900
MQY-70×□	7000	9000-13600	348-515	485-718	11.4-12.4	8600-12800
MQY-73×□	7300	9400-14000	395-577	570-832	11.2-12.1	10000-14700
MQY-76×□	7600	9800-14600	447-653	644-941	10.9-11.9	11500-17000
MQY-79×□	7900	10200-15000	501-724	675-977	10.7-11.7	12700-18400
MQY-82×□	8200	10600-15500	561-807	756-1088	10.5-11.4	14500-20800
MQY-85×□	8500	11000-16000	625-895	843-1207	10.3-11.2	16400-23600

1. Mill diameter refers to the diameter inside the mill shell, while the mill length refers to the effective grinding length.
2. The particle size should not greater than 25mm.

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
MQ-09×□	900	900-1800	0.45-0.9	0.96-1.9	34.8-39.5	7.5-15
MQ-12×□	1200	1200-2400	1.1-2.2	2.4-4.7	29.8-33.9	22-45
MQ-15×□	1500	1500-3000	2.2-4.5	4.7-9.7	26.5-30.1	55-90
MQ-21×□	2100	2200-4000	7-12	15-27	22.3-25.3	140-250
MQ-24×□	2400	2400-4500	10-18	21-39	20.8-23.6	210-355
MQ-27×□	2700	2100-5400	11-28	23-59	19.6-22.2	260-630
MQ-32×□	3200	3000-6400	22-47	46-98	17.9-20.4	500-1120
MQ-36×□	3600	3900-7000	36-64	75-135	16.9-19.2	1000-1800
MQ-40×□	4000	4500-7200	52-83	103-165	15.6-17.3	1400-2200
MQ-43×□	4300	4700-7500	63-100	125-200	15.0-16.7	1600-2500
MQ-45×□	4500	5000-7700	73-113	147-226	14.7-16.3	2000-3100
MQ-48×□	4800	5300-7900	89-132	178-265	14.2-15.8	2200-3300
MQ-50×□	5000	5500-8100	100-147	199-293	13.9-15.5	2600-3800
MQ-52×□	5200	5700-8300	112-163	224-326	13.6-15.2	3000-4300
MQ-55×□	5500	6000-8500	132-187	265-375	12.9-14.0	3700-5200

1. Mill diameter refers to the diameter inside the mill shell, while the mill length refers to the effective grinding length.
2. The particle size should not greater than 25mm.

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
MQG-09×□	900	900-1800	0.45-0.9	0.96-1.9	34.8-39.5	7.5-15
MQG-12×□	1200	1200-2400	1.1-2.2	2.4-4.7	29.8-33.9	22-45
MQG-15×□	1500	1500-3000	2.2-4.5	4.7-9.7	26.5-30.1	55-90
MQG-21×□	2100	2200-4000	7-12	15-27	22.3-25.3	140-250
MQG-24×□	2400	2400-4500	10-18	21-39	20.8-23.6	210-355
MQG-27×□	2700	2100-5400	11-28	23-59	19.6-22.2	260-630
MQG-32×□	3200	3000-6400	22-47	46-98	17.9-20.4	500-1120
MQG-36×□	3600	3900-7000	36-64	75-135	16.9-19.2	1000-1800
MQG-40×□	4000	4500-7200	52-83	103-165	15.6-17.3	1400-2200
MQG-43×□	4300	4700-7500	63-100	125-200	15.0-16.7	1600-2500
MQG-45×□	4500	5000-7700	73-113	147-226	14.7-16.3	2000-3100

1. Mill diameter refers to the diameter inside the mill shell, while the mill length refers to the effective grinding length.
2. The particle size should not greater than 25mm.

Model	Mill diameter	Mill length	Mill effective volume	Max. ball loading capacity	Rotation speed	Motor power
Model	mm	mm	m³	t	r/min	kW
MB-09×□	900	1400-2200	0.7-1.1	1.5-2.3	29.7-33.5	11-15
MB-12×□	1200	1800-2500	1.6-2.3	3.6-5.0	25.2-28.5	30-37
MB-15×□	1500	2100-3000	3.1-4.5	7-10	22.3-25.2	75-95
MB-21×□	2100	3000-3600	9.1-10.9	20-24	18.7-21.2	175-210
MB-27×□	2700	3600-4500	18.2-22.8	40-50	16.5-18.5	360-450
MB-32×□	3200	4500-5400	32.2-38.7	71-85	14.6-16.6	630-800
MB-36×□	3600	4500-6000	40.8-54.4	90-20	13.8-15.6	1000-1250
MB-40×□	4000	5000-6000	56.7-68.0	125-150	13.0-14.8	1250-1500
MB-43×□	4300	5000-6000	66.0-79.2	145-174	12.5-14.2	1400-1800
MB-45×□	4500	5000-6000	72.6-87.1	160-192	12.2-13.9	1600-2000
MB-47×□	4700	5500-6500	87.4-103.3	192-227	12.0-13.6	1800-2200

1. Mill diameter refers to the diameter inside the mill shell, while the mill length refers to the effective grinding length.
2. The particle size should not greater than 25mm.

Case Study

We believe the projects that we have executed speak for themselves. CITIC HIC has engineered and provided 6 AG mills of Ø12.2m×11m (28000kW gearless drive) and 6 overflow discharge ball mills of Ø7.9×13.6m (2×9000kW gear drive) for Sino Iron Project in Australia. For Zijin Mining's Duobaoshan Copper Mine project in Heilongjiang, we have manufactured and provided SAG mills of Ø11×6.4m (2×9000kW) and overflow discharge ball mills of Ø7.9×13.6m (2×9000kW) which have been well operating currently.

Western Mining Group's Yulong Copper Mine Project in Tibet
(Altitude 4660m 60,000t/d)

4 SAG mills, Ø8.8×4.8m
4 overflow discharge ball mills, Ø6.2×10.5m

Kamoa-Kukula Copper Mine Phase I & Phase II in DR Congo
(11,400t/d)

2 overflow discharge ball mills, Ø6.1×9.75m

Sino Iron Project in Australia (240,000t/d)

6 overflow discharge ball mills, Ø7.9m×13.6m

Zijin Mining's Zijinshan Gold and Copper Mine Project (45,000t/d)

1 SAG mill, Ø11×5.4m
1 overflow discharge ball mill, Ø7.9×13.6m

China National Gold Group's Mine Project in Inner Mongolia

Wunugetushan Copper-Molybdenum Mine Project Phase II (42,000t/d)
1 SAG mill, Ø11×5.4m
1 overflow discharge ball mill, Ø7.9×13.6m

China National Gold Group's Tibet Huatailong

Jiama Copper-Polymetallic Mine Project Phase II (40,000t/d)
2 SAG mills, Ø10.37×5.19m
2 overflow discharge ball mills, Ø7.32×12.50m

JDC Group's Molybdenum Mine Project (20,000t/d)

1 SAG mill, Ø10.37×5.19m
1 overflow discharge ball mill, Ø7.32×12m

Jiangxi Copper Corporation's Dexing Copper Mine Project (22,500t/d)

1 SAG mill, Ø10.37×5.19m
1 overflow discharge ball mill, Ø7.32×10.68m

Mongolian Erdenet Mining Corporation's Copper Mine Project (20,000t/d)

1 SAG mill, Ø9.75×4.88m
1 overflow discharge ball mill, Ø6.71×9.75m

Laos Phonesack Group's KSO Gold Mine Project (83,000t/d)

6 SAG mills, Ø8.8×4.8m
1 SAG mill, Ø8.8×5.5m
6 overflow discharge ball mills, Ø6.2×11.5m

TISCO Group's Yuanjiacun Iron Mine Project (70,000t/d)

3 overflow discharge ball mills, Ø7.32×11.28m
3 overflow discharge ball mills, Ø7.32×12.50m

Full-process Solution for Mineral Grinding

Why Choose CITIC HIC's Grinding Mills

High cost-effectiveness
CITIC HIC grinding mills are recognized as China's Manufacturing Industry Single Champion Product. CITIC HIC is responsible for setting the national standards of semi-autogenous mills (SAG mills) and ball mils, supported by powerful database, optimized process technology, cutting-edge design concept, and 60 years of experience in developing and nurturing innovative technology.
High operating rate
The long life cycle of our products is based on the adoption of international standards, high-quality materials, state-of-the-art processing techniques.
Low-carbon & environmental-friendly processes
Intelligent control technology coupled with long-life wear-resistant materials results in low-carbon and eco-friendly operations.
High-efficiency service
Our service network is distributed all over the world, and our service team of seasoned professionals is reliable and willing to assist along the way. We are able to deliver quick response to customer needs and provide full life cycle support via online monitoring and diagnosing, product upgrading and continuous process improvement.

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