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Mill cover is an important part of the grinding mill, which supporting and connection the mill shell. Mill cover is the feed and discharge passage of the materials.
Ball mill cover:
1. Material: ASTMA-27 grade 70-40 Class 1
2. Heat treatment:Q.T.
3. NDT:ASTM E-709 and ASTM E-125
Ball mill cover:
We are professional supplier in producing mill components and cement kiln components.Our components can meet the requirement of most kinds of mills. We supply components service not only for mill manufacturer but also for whom in maintaining.
High-quality steelBig R filletHigh strength bolts and cylinder connection
1. Material: ASTMA-27 grade 70-40 Class 1
2. Mechanical Property
| Yield Strength | ≥275 MPA |
| Tensile Strength | ≥485MPA |
| Elongation | ≥22MPA |
We have experienced QCP successfully executed for quality controlling for many years. We have the honor that we are ability to guarantee the foundry quality against so large steel casting. It's very important for us to decrease the cost and short the delivery in subsequent processing. The material of mill head is normally selected low carbon steel and low alloy steel. Distinctively we're good at refining on all key knots, including chemical elements controlling in foundry and subsequent heat treated. Thus we have the ability to keep the material grasping the maximum potential performance. The products even if in frequently working condition or very cold circumstance can possess prolong service life
Processing and final Inspection to be taken by NDE according with ASTM and ISO standard, including UT and MPI .TPI to be acceptable yet.
In the field of grinding mill components, We supply mill heads, feed inlet, grinding roller, cement kiln riding ring, casting gears, shaft block .Also we supply mill shell of welding structures and fabrications.
Quality assurance documents.
The following reports are to be submitted to Quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment documents
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (before and after repairs)
f. Dimensional report
g. Weld repair maps
h. Weld procedures and Procedure qualification record
i. Welder qualification
j. Nondestructive testing inspector qualification
| No. | Item | structural features | processing measure | Test content |
| 1 | cylinder | (1) massive structure (2) L flange (3) finite element analysis (4) Surrounding the manhole mechanical processing |
(1)union melt welding (2) Whole annealing after welding (3) polishing treatment (4) Processing and ensure that both ends of the positioning alignment |
(1) Material certificate, review material machinery performance and chemical composition (2) Cutting edge around the ultrasonic flaw detection (3) Weld ultrasonic testing |
| 2 | End cap and Hollow shaft |
(1) High quality cast steel (2) R rounded corners (3) High strength bolts connected to the cylinder |
(1) Molten steel refining outside the furnace (argon blowing and R - H vacuum processing) (2) Modelling using special sand, strict control of pouring temperature and casting speed (3) Shaft processing, assurance and coaxial degree and the roughness of the face |
(1) Mechanical properties and chemical composition of casting billet (internal control standard) (2) Ultrasonic testing after rough machining (3) Ultrasonic testing and magnetic particle inspection after finishing |
Processing and finished photos for your reference
About us
CITICTIC Luoyang Heavy Machinery CO., LTD. The former was CITIC Heavy Machinery Co., Ltd. It was used be subsidiary of CITIC heavy machinery co., ltd. The company was founded in 1981 and finished joint stock reform in 2005, which is located in Luoyang city, capital city of nine dynasties in ancient times.
With a garden-like industrial park and modern standard plant covering 80000 square meters, CITICTIC possesses advanced equipments, technologies and detecting methods. After more than 30 years development, the company has developed into a collectivized one with product designing, manufacture, installation and technical services.
The products comprise all the equipments used in mining, ore dressing, hoisting, coal preparation, crushing and grinding, cement plant, metallurgic and steel rolling, environment protection, and also power generator, heavy-duty gear reducers and large-sized castings and forgings, etc.
CITICTIC is national major industry and heavy machinery manufacturing base in the middle of china, we can supply the customers with important complete technical equipments in mining, non-ferrous metal, chemical industry, metallurgy, construction materials, environment protection, and power generating as well as other basic industries. The company can accept the packed engineering project. Our products are sold well to countries and regions in Asia, Africa, Europe, and Australia, and hold a large market share home and abroad.
mill cover process measuresMolten steel secondary refining(R-H vacuum treatment)
Modeling using special sand, strictly control the pouring temperature and casting speed
Journal processing to ensure concentricity and roughness of the end surface of the mouth
Rough casting mechanical properties and chemical composition(internal standard)
Ultrasonic testing after rough machining
Ultrasonic testing and magnetic particle testing
High-quality steel
Big R fillet
High strength bolts and cylinder connection
Mill cover is an important part of the grinding mill, which supporting and connection the mill shell. Mill cover is the feed and discharge passage of the materials.
Ball mill cover:
1. Material: ASTMA-27 grade 70-40 Class 1
2. Heat treatment:Q.T.
3. NDT:ASTM E-709 and ASTM E-125
Ball mill cover:
We are professional supplier in producing mill components and cement kiln components.Our components can meet the requirement of most kinds of mills. We supply components service not only for mill manufacturer but also for whom in maintaining.
High-quality steelBig R filletHigh strength bolts and cylinder connection
1. Material: ASTMA-27 grade 70-40 Class 1
2. Mechanical Property
| Yield Strength | ≥275 MPA |
| Tensile Strength | ≥485MPA |
| Elongation | ≥22MPA |
We have experienced QCP successfully executed for quality controlling for many years. We have the honor that we are ability to guarantee the foundry quality against so large steel casting. It's very important for us to decrease the cost and short the delivery in subsequent processing. The material of mill head is normally selected low carbon steel and low alloy steel. Distinctively we're good at refining on all key knots, including chemical elements controlling in foundry and subsequent heat treated. Thus we have the ability to keep the material grasping the maximum potential performance. The products even if in frequently working condition or very cold circumstance can possess prolong service life
Processing and final Inspection to be taken by NDE according with ASTM and ISO standard, including UT and MPI .TPI to be acceptable yet.
In the field of grinding mill components, We supply mill heads, feed inlet, grinding roller, cement kiln riding ring, casting gears, shaft block .Also we supply mill shell of welding structures and fabrications.
Quality assurance documents.
The following reports are to be submitted to Quality Assurance:
a. Chemistry report
b. Physical report
c. Heat treatment documents
d. Ultrasonic inspection report (before and after repairs)
e. Magnetic particle inspection report (before and after repairs)
f. Dimensional report
g. Weld repair maps
h. Weld procedures and Procedure qualification record
i. Welder qualification
j. Nondestructive testing inspector qualification
| No. | Item | structural features | processing measure | Test content |
| 1 | cylinder | (1) massive structure (2) L flange (3) finite element analysis (4) Surrounding the manhole mechanical processing |
(1)union melt welding (2) Whole annealing after welding (3) polishing treatment (4) Processing and ensure that both ends of the positioning alignment |
(1) Material certificate, review material machinery performance and chemical composition (2) Cutting edge around the ultrasonic flaw detection (3) Weld ultrasonic testing |
| 2 | End cap and Hollow shaft |
(1) High quality cast steel (2) R rounded corners (3) High strength bolts connected to the cylinder |
(1) Molten steel refining outside the furnace (argon blowing and R - H vacuum processing) (2) Modelling using special sand, strict control of pouring temperature and casting speed (3) Shaft processing, assurance and coaxial degree and the roughness of the face |
(1) Mechanical properties and chemical composition of casting billet (internal control standard) (2) Ultrasonic testing after rough machining (3) Ultrasonic testing and magnetic particle inspection after finishing |
Processing and finished photos for your reference
About us
CITICTIC Luoyang Heavy Machinery CO., LTD. The former was CITIC Heavy Machinery Co., Ltd. It was used be subsidiary of CITIC heavy machinery co., ltd. The company was founded in 1981 and finished joint stock reform in 2005, which is located in Luoyang city, capital city of nine dynasties in ancient times.
With a garden-like industrial park and modern standard plant covering 80000 square meters, CITICTIC possesses advanced equipments, technologies and detecting methods. After more than 30 years development, the company has developed into a collectivized one with product designing, manufacture, installation and technical services.
The products comprise all the equipments used in mining, ore dressing, hoisting, coal preparation, crushing and grinding, cement plant, metallurgic and steel rolling, environment protection, and also power generator, heavy-duty gear reducers and large-sized castings and forgings, etc.
CITICTIC is national major industry and heavy machinery manufacturing base in the middle of china, we can supply the customers with important complete technical equipments in mining, non-ferrous metal, chemical industry, metallurgy, construction materials, environment protection, and power generating as well as other basic industries. The company can accept the packed engineering project. Our products are sold well to countries and regions in Asia, Africa, Europe, and Australia, and hold a large market share home and abroad.
mill cover process measuresMolten steel secondary refining(R-H vacuum treatment)
Modeling using special sand, strictly control the pouring temperature and casting speed
Journal processing to ensure concentricity and roughness of the end surface of the mouth
Rough casting mechanical properties and chemical composition(internal standard)
Ultrasonic testing after rough machining
Ultrasonic testing and magnetic particle testing
High-quality steel
Big R fillet
High strength bolts and cylinder connection