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 (flange to flange)	Mill effective volume	Max. ball loading capacity	Motor power	Fresh feed capacity
Model	mm	mm	m³	t	kW	t/h
SAG-40×□	4000	1600-3600	19-42	15-30	310-700	40-90
SAG-45×□	4500	1800-4100	27-61	20-45	470-1060	60-140
SAG-50×□	5000	2000-4500	38-83	25-60	680-1600	90-200
SAG-55×□	5500	2200-5000	51-112	35-80	940-2200	120-280
SAG-58×□	5800	2400-5300	61-119	45-85	1200-2600	150-330
SAG-61×□	6100	2500-5500	70-151	50-105	1400-3100	180-390
SAG-64×□	6400	2600-5800	81-175	55-120	1700-3700	220-470
SAG-67×□	6700	2700-6100	93-203	65-140	1900-4300	240-540
SAG-70×□	7000	2800-6300	105-230	75-160	2200-4900	280-620
SAG-73×□	7300	3000-6600	123-264	85-185	2600-5700	330-720
SAG-80×□	8000	3200-7200	160-347	110-240	3500-7900	440-990
SAG-85×□	8500	3400-7700	192-420	135-295	4300-10000	540-1250
SAG-88×□	8800	3600-8000	219-467	155-325	5000-11100	630-1390
SAG-92×□	9200	3700-8300	247-532	170-370	5700-16000	720-2000
SAG-98×□	9800	4000-8900	304-649	210-455	7300-16100	920-2020
SAG-104×□	10400	4200-9400	361-774	250-540	8800-20000	1100-2500
SAG-110×□	11000	4400-9900	425-915	295-640	10600-24000	1300-3000
SAG-116×□	11600	4700-10500	506-1082	355-755	13000-28000	1600-3500
SAG-122×□	12200	4900-11000	585-1255	410-875	15300-32000	1900-4000
SAG-128×□	12800	5200-9200	685-1169	480-815	18000-32000	2300-4000
SAG-134×□	13420	5400-8800	785-1238	550-865	22000-34000	2800-4300

1. Mill diameter refers to the internal diameter of the mill shell. The effective grinding length is determined by the sizes of the end liners and the grate.
2. The feed particle size should not be greater than 300 mm.
3. The maximum ball loading capacity of the SAG mill is 15% of the mill’s effective volume.
4. The operating speed is typically 75% of the mill’s critical speed. The variable frequency drive (VFD) allows speed adjustment within a range of 5% to 15% of the rated speed.
5. The feed capacity is suitable for an SABC flowsheet, with a JK drop-weight index (A × b) ranging from 40 to 56.

Model	Mill diameter	Mill length (flange to flange)	Mill effective volume	Max. ball loading capacity	Motor power	Fresh feed capacity
Model	mm	mm	m³	t	kW	t/h
MQY-09×□	900	1100-2100	0.6-1.2	1-2	10-20	1-2
MQY-12×□	1200	1500-2400	1.6-2.3	2-3	30-40	3-4
MQY-15×□	1500	1800-3000	2.8-4.6	4-7	50-90	5-9
MQY-21×□	2100	2600-4200	8-13	15-20	160-250	15-25
MQY-24×□	2400	2900-4800	12-20	20-35	230-380	25-40
MQY-27×□	2700	3300-5400	18-28	30-45	350-560	35-55
MQY-30×□	3000	3600-6000	24-40	40-65	500-800	52-80
MQY-32×□	3200	3900-6400	30-48	50-80	600-1000	60-100
MQY-36×□	3600	4400-7200	43-69	70-110	900-1500	91-150
MQY-40×□	4000	4800-8000	59-95	95-155	1300-2100	130-210
MQY-43×□	4300	5200-8600	74-119	120-195	1600-2700	160-270
MQY-45×□	4500	5400-9000	85-137	140-225	1900-3100	190-310
MQY-48×□	4800	5800-9600	104-167	170-270	2300-3800	230-380
MQY-50×□	5000	6000-10000	117-189	190-310	2600-4300	260-430
MQY-52×□	5200	6300-10400	133-213	215-345	3000-4900	300-490
MQY-55×□	5500	6600-11000	156-252	255-410	3600-5900	360-590
MQY-58×□	5800	7000-11600	185-297	300-485	4300-7000	430-700
MQY-60×□	6000	7200-12000	204-329	330-535	4700-7900	470-790
MQY-62×□	6200	7500-12400	227-363	370-590	5300-8700	530-870
MQY-64×□	6400	7700-12800	249-400	405-650	5900-9700	590-970
MQY-67×□	6700	8100-13400	287-460	465-750	6800-11300	680-1130
MQY-70×□	7000	8400-14000	326-526	530-855	7800-13000	780-1300
MQY-73×□	7300	8800-14600	372-598	605-975	9000-15000	900-1500
MQY-76×□	7600	9200-15200	422-676	685-1100	10400-17100	1040-1710
MQY-79×□	7900	9500-14500	472-700	770-1140	12000-18000	1200-1800
MQY-82×□	8200	9900-15000	531-782	865-1275	14000-21000	1400-2100
MQY-85×□	8500	10200-15000	588-844	955-1375	15000-22000	1500-2200
MQY-88×□	8800	10600-15500	656-935	1070-1520	17000-25000	1700-2500

1. Mill diameter refers to the internal diameter of the mill shell, while the effective grinding length is typically 150–200 mm shorter than the flange-to-flange (F/F) mill length.
2. The feed particle size should not be greater than 25 mm.
3. The operating speed is usually 75% of the mill’s critical speed.
4. The feed capacity is suitable for an SABC process, with a Bond Work Index (BWi) in the range of 9–15 kWh/t.

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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