Vertical Grinding Mill Top equipment of blast furnace slag, composite dust and limestone large-scale processing. High Capacity, Advanced Technology, High Efficiency HLM series vertical grinding mill is a kind of advanced pulverizing equipment integrated with drying, pulverizing, powder selecting and conveying. It is applied as a good solution to the technical issue such as low output, high energy consumption and high maintenance cost in the ordinary industry. HLM vertical mill has become the mainstream equipment in the pulverizing industry with the following advantages: efficient grinding, lower power consumption, larger feeding size, adjustable fineness, simple process flow, space-saving, lower noise, smaller air pollution, easy maintenance, lower operation cost, longer working life of wearing parts etc. HLM Vertical Mill is widely applied in power, metallurgical, cement, chemical and non-metal industry, such as cement raw material, blast furnace slag, composite dust, limestone, gangue, gypsum, bauxite, magnesium oxide, wollastonite, zircon sand, diabase, basalt, manganese, powder, coal, barite, calcite, etc.

1. Guilin Hongcheng
Guilin Hongcheng Mining Equipment Manufacture Co.,Ltd.

2. Professional Complete Solution Supplier of
Powder Processing in china

3. Guilin Hongcheng Mining Equipment Manufacture Co.,Ltd. Is a professional supplier of powder processing
integrated solution. It is a leading enterprise of powder processing equipment in China, which is specialized in
supplying design, equipments, installations and commissioning service for powder processing production line.
Hongcheng, certificated by ISO9001:2008 international quality management system, is a national high-tech
enterprise with more than 30 patents and import and export authority. Depending on the producing and
researching experiences of decades, Guilin Hongcheng has become a major powder processing equipment
manufacturer and export base.
Our factory is organized by three production bases and a researching center. The main production center locates
in Yangtang Industrial Park, Xicheng Economic Development Zone, Guilin, spread an area of 170,000m2. Main
products that Guilin Hongcheng manufactured are: R-serial pendulum Mill, HCH serial Ultra-fine Mill, HC serial
vertical pendulum Mill, HCQ serial Mill, HC1700 super-large scale vertical pendulum Mill, HC2000 super-large Mill,
HLM vertical Mill and HLMX Ultra-fine vertical Mill. HC serial vertical pendulum Mill is the core product which
gained patents. HLM serial Vertical Mill is a high efficiency and energy-saving large scale powder processing
equipment developed by decades of painstaking research. Our operation principle is to bring the maximum value
for customers by quality and service. We are not only producing and selling productions, more important for us is
researching, program designing, delivering, installing, after sell service, parts supplying, skill training, etc. We are
able to offer you the best solution and service, and help you to get a brilliant success.
At present, Hongcheng is entitled to a high fame in domestic processing field. No matter in infrastructure
construction, mineral deep processing, solid waste cyclic utilization, energy saving, emission reduction,
environmental protection, or metallurgy, construction material, chemical engineering, power plant fields, we can
see the brand of Hongcheng; no matter in large-scale non-metallic powder processing, coarse whiting processing,
desulfuration limestone processing or petroleum coke powder processing fields, Hongcheng is the first choice of
customers. Our vision is to establish a global brand for China, we are holding the principle of “Quality is the
basement of survival, service is the source of development”. The facilities and service of Guilin Hongcheng have
been spread to Vietnam, Laos, Malaysia, Indonesia, Sultan, Africa, Brazil, Chile, Russia, Philippines, Egypt, etc.
COMPANY PROFILE

4. Technological Innovations Achievement
Number of R&D technical staff accounted for 13.37% of all, entitled as" State-level high-tech
enterprise”.
 12 research and development projects in the past 3 years, scientific and technological
achievements conversion average for more than 4 annual, sales of new products through the
conversion of technological achievements can achieve three or more every year.
The company has 25 patents, including 1 invention patent, 1 applications for invention patent,
patent achievements conversion rate is 100%.
“HC1700 large-scale vertical pendulum grinding mill "win the secondary prize of “Guilin Scientific
and Technological Progress ”.
 National Innovation Fund Project—HCM Double Cyclone Powder Impact Mill verified for
acceptance.
“HC2000 large-scale vertical pendulum grinding mill ”and“HCX Composite channel pendulum
superfine powder grinding mill”are included in the Autonomous Region Committee for the 2012
technical innovation project.
“Remote intelligent monitoring HC2000 Large mine mill“ is included in Autonomous Region
Committee for the 2012 billion yuan industry research cooperation projects.
Become Enterprise Technology Center in Guangxi, Guangxi manufacturing model enterprise for
informatization, included as cultivation object of Autonomous Region Committee researching and
development center in 2012.

5. Strategy Cooperation
China Institute of Coal Science——Energy saving industrial boiler and coal chemical project
(Qilianta Coal Mine)
Chinese Academy of Sciences——Sulfide bed project(CITIC manganese industry）
China University of Mining and Technology——Non-metallic mineral powder modification project
China Calcium Carbonate Association——National Industrial Demonstration County (Rectification
of Huzhou calcium carbonate industry）
Xi'an Transportation University——Remote Monitoring Project（Changxin Jinding mining）
Guilin University of Electronic Technology——Machine hand packaging project（under R&D）
China Casting Association——R&D of abrasion castings project
China Non-metallic Minerals Industry Association, China Association of the manganese, China
Coating Association, China Building Materials Association, Chinese Productivity Promotion
Center, China Association for science and technology, China Forest Products Industry
Association……
Guilin Hongcheng mill equipment were selected for more than 85% of the new launched projects in
manganese, calcium carbonate and other industries.

6. HLM Series Vertical Mill
Top equipment of blast furnace slag, composite dust
and limestone large-scale processing. High Capacity,
Advanced Technology, High Efficiency

7. HLM Vertical Mill—(80-600 mesh) Powder Processing
HLM series vertical grinding mill is a kind of advanced
mill developed by Hongcheng based on two decades
of R&D experiences and introduction of foreign
advanced technology. HLM vertical mill is advanced
pulverizing equipment integrated with drying,
pulverizing, powder selecting and conveying. It is
applied as a good solution to the technical issue such
as low output, high energy consumption and high
maintenance cost in the ordinary industry.
HLM vertical mill has become the mainstream
equipment in the pulverizing industry with the
following advantages: efficient grinding, lower power
consumption, larger feeding size, adjustable fineness,
simple process flow, space-saving, lower noise,
smaller air pollution, easy maintenance, lower
operation cost, longer working life of wearing parts
etc..

8. HLM Vertical Mill Application Range
1. Material hardness： From abnormal hard grind material (such as quartz sand, slag, slag, pyrophyllite,
iron ore, etc.) to the easy grind materials (such as gypsum, calcite, limestone, marble, etc.) ；
2. Material moisture： From 20% -30% moisture content (such as calcium carbide slag, lignite, etc.)
material to a moisture content of less than 1% (cement clinker, etc.) materials, strong adaptable for
moisture content of materials;
3. Product fineness： From 2-5mm (such as grinding raw shale brick of new wall materials industry,
construction sand, etc.) to 15um by passing rate 97% (such as paper, chemical industry, heavy calcium
carbonate, etc.), wide product fineness range, adjustable and controllable, easy and convenience
operation.

9. Main Frame Structure of HLM Vertical Grinding Mill
HLM roller mill uses standard modules to design and fabricate pressurization device. With the
increase in mill capacity , there is an increase in grinding rollers numbers. It could be 2 rollers or 3 or
even 4, maximum to be 6 rollers for permutations and combinations. With minimum standard
modular components, form a variety capability of products to meet different requirements for
product fineness and capacity.

10. HLM Vertical Mill working principle
The motor drives the reducer to rotate the millstone, the
raw material are sent into the center of the millstone
from the air lock rotary feeder. Under the effect of
centrifugal force, the material moves to the edge of the
millstone. Material than be ground by the force of the
roller and smashed under extrusion, grinding and cutting.
At the same time, hot air is blew up around the millstone
and bring up the ground material. The hot air will dry the
floating material and blow the coarse material back to
the millstone. The fine powder will be brought to the
classifier, and then, the qualified fine powder will flow
out the mill and be collected by dust collector, other
coarse powder will be brought down to the millstone by
the blade of classifier and be ground again. The
circulation like this is the overall process of grinding.

11. Working principle of HLM vertical mill

12. HLM Vertical Mill working process of heavy calcium carbonate
Raw material
<35mm
Vertical
mill
Classifier with
single head
Building material, plastic,
paper-making
NO.1 ultra-fine
classifier
800-1250mesh
325-800mesh
Middle and high level
building material, plastic
NO.2 ultra-fine
classifier
1500-2500mesh
High-level building
material, paper-making
Wet processing for
2000-6500mesh
Low-grade 1
Low-grade 2

13. HLM1700 System Layout

14. HLM Vertical Mill Working Process

15. Technical Advantages
1. Lower Investment:
With an integral function of crushing, drying, pulverizing, powder selecting and conveying, it
features in simple process system and compact arrangement. Covering a half area of the ball
mill system, it can be placed in the open air which can be greatly reduce investment cost.

16. Technical Advantages
2. Higher Efficiency:
（1）Higher grinding efficiency, lower power consumption(40%-50% less than ball mill);
（2） Higher production capacity, off-peak power can be used.
3. Easy Maintenance and Lower Operation Cost:
（1）The roller can be pulled out by the hydraulic device, which is convenient for plate-
replacement and bigger maintenance space.
（2）Left and right side of the roller cover can both be used for prolonging the working life.
（3） Without raw material on the grinding table, the mill can run, which erases the difficulty
in starting.
（4）The roller and grinding table are made from special material for longer working life.
4. Stable Powder Quality:
（1） The product grain size and chemical composition can be easily detected and controlled
due to the short stay of the raw material in the mill so as to reduce repeated milling and
stabilize the product quality.
（2） Regular powder shape, narrow size fineness, easy fluidity, extensive application.
（3） The product features high whiteness and purity when being used in pulverizing white
and transparent materials due to precious iron content and its contained mechanical wear
iron is easy to be removed.

17. Technical Advantages
5. Reliability:
（1） Roller with height-controlled device, which could avoid strong vibration called by the
lack of material on the table.
（2） Newly-designed roller sealing component ensures the reliable sealing without sealing
the fan, which can lower the oxygen content in the mill to prevent the possibility of explosion.
6. Environment-friendly:
(1) Lower vibration and noise
(2) Perfect sealing and negative pressure guarantees no air pollution in the workshop.
(3)Vertical mill is the better equipment to lower power consumption in the mill industry,
which is also what the country advocate and a must to increase the enterprise
competitiveness in China powder industry.
7. High Automatic Level: PLC automatic control system, remote control, easy operation and
maintenance, lower labor cost.
8. Strong Drying Ability
Vertical mill features in high trying ability with hot air direct contact with the material in the
mill, maximal feeding moisture of 15% is workable. A separate drying machine and energy for
the mill system can be both saved. The vertical mill can satisfy the materials in different
humidity by adjusting the hot air temperature.

18. HLM Vertical mill picture at customer’s site

19. Thank You
Guilin Hongcheng Mining
Equipment Manufacture
Co.Ltd.
Ｐｌｓ．Ｃｏｎｔａｃｔ：
Market & Sale Dept .：
Lily Xie（86）773-3568399 139783675011
Fax:（86）773-3568987
Email: glhc_service@163.com
Add: Yangtang Industrial Park, Xicheng Economic Development Zone，Guilin
City, Guangxi Province, China, 541199