Our Company
We are the leading manufacturer and supplier of rolling rolls for rolling mill, which are longterm supplier for Baosteel, CONCAST and OEM for BRC etc.Exporting to over 25 countries across Europe, North and South America, Africa, Middle East and SouthEast Asia, having a capacity of rolling rolls of 40000 tons per year.
We specialize in exporting different kinds of mill rolls, such as follows:
1)CAST IRON ROLLS
Alloy Chilled Cast Iron Rolls
Alloy Indefinite Chilled Cast Iron Rolls
Pearlitic Nodular Cast Iron Rolls(Centrifugal)
Spiculate Bainitic Nodular Cast Iron Rolls(Centrifugal)
Alloy Nodular Cast Iron Rolls(Centrifugal)
2)CAST STEEL ROLLS
Alloy Cast Steel Rolls
Adamite Steel Rolls
Graphite Steel Rolls
High Speed Steel Rolls
Centrigugal Casting Hi-Carbon Steel Adamite Rings
3)FORGED ROLLS
material: 42CrMo4, 36NiCr16Mo, 34CrNi3Mo, 30CrMo, 9Cr2Mo, 9Cr3Mo, 60CrMoV etc.
4)Tungsten Carbide Rolls: Tungsten carbide rings, Composite rolls.
Furthermore, application mentioned above, rolls or rings can be produced on specially customer requested
design and dimensions under the possible scope of supply, please feel free to contact us for any quarry or
question, we will feel pleasure to assist you.
Products Description
| Pearlitic ductile cast iron roll | ||||||||
| Chemical Analysis | ||||||||
| Designation of rolls | Material code | C | Si | Mn | Ni | Cr | Mo | Mg |
| Pearlitic ductile cast iron roll Ⅰ | SGP Ⅰ | 3.00-3.40 | 1.40-1.90 | 0.40-0.80 | 1.50-2.00 | 0.20-0.60 | 0.20-0.60 | ≥0.04 |
| Pearlitic ductile cast iron roll Ⅱ | SGP Ⅱ | 3.00-3.40 | 1.20-2.00 | 0.40-0.80 | 2.01-2.50 | 0.20-1.00 | 0.20-0.60 | ≥0.04 |
| Pearlitic ductile cast iron roll Ⅲ | SGP Ⅲ | 3.00-3.40 | 1.00-2.00 | 0.40-0.80 | 2.51-3.00 | 0.20-1.20 | 0.20-0.60 | ≥0.04 |
| Physical Properties | ||||||||
| Designation of rolls | Material code | Barrel hardness | Neck hardness | Tenslle strength | ||||
| Pearlitic ductile cast iron roll Ⅰ | SGP Ⅰ | 45-55 | 35-55 | >450 | ||||
| Pearlitic ductile cast iron roll Ⅱ | SGP Ⅱ | 55-65 | 35-55 | >450 | ||||
| Pearlitic ductile cast iron roll Ⅲ | SGP Ⅲ | 62-72 | 35-55 | >450 | ||||
| Microstructure | ||||||||
| Designation of rolls | Material code | Microstructure | ||||||
| Pearlitic ductile cast iron roll Ⅰ | SGP Ⅰ | Pearlite+cementite+small Graphite | ||||||
| Pearlitic ductile cast iron roll Ⅱ | SGP Ⅱ | Pearlite+cementite+small Graphite | ||||||
| Pearlitic ductile cast iron roll Ⅲ | SGP Ⅲ | Globular pearlite+carbide+graphite Or a small amount of pearlite +bainite+carbide+sperical graphite | ||||||
| Application | ||||||||
| Designation of rolls | Material code | Appllcation | ||||||
| Pearlitic ductile cast iron roll Ⅰ | SGP Ⅰ | Profiles,rods,wire and narrow strip mill thick,in the rolling mill stand | ||||||
| Pearlitic ductile cast iron roll Ⅱ | SGP Ⅱ | Profiles,rods,wire and narrow strip mill thick,in the rolling mill stand | ||||||
| Pearlitic ductile cast iron roll Ⅲ | SGP Ⅲ | Profiles,rods,wire and narrow strip mill thick,in the rolling mill stand |
Products Process
Static Casting Process of Roll
Spin Casting Process of Roll
The Equipments
We,LMM GROUP adopts the normal casting way,slot-based casting and large,medium and small horizontal centrifugal casting method to produce rolls ,where the large-sized vertical centrifugal machine is capable of producing the rolls of the maximum specifications of 1400*4600*9000.
The company mainly with :the United States should should 20T/30T double power inverter intermediate frequebcy electric stove,10T,5T,3T intermediate frequency electrice stove,for a total of eight seat,60T LF,60T VD vacuum finer,V.C vacuum casting furnace each one ,equipped with adwanced spraying and the sand casting equipment.
LMM GROUP implements strictly the ISO9001:2008 and the technology standards and adopts the computer-aided control technology to ensurethe consistency of technology control of production process of rolls ,the consistency and stability of product quality and performance
Ouality Assurance
Certification
Our factory
LMM GROUP establishes the perfct quality monitoring and inspection system,covering the full process from rawmaterials to the finished rolls .with the high-quality technicians and the advanced inspection and test equipment at home LMM GROUP adopts the way to collect information and process feedback through computer for full process. LMM GROUP is established the raw material analysis centre ,quick analysis centre and physical test centre to control the processquality and performance of rolls andsatisfy with all quality test and inspection demand of users on products.Furthermore LMM GROUP provides the modern advanced measures for performance and quality control and technical research anddevelopment of rolls. Where the
quick analysis centre isequipped with the Leco CS230 carbon -sulfur analyzer made in USA ;LecoTCH-600 hydrogen,oxygen and nitrogen analyzer made in USA ,Q8 direct -reading spectrometer made by Brukergermany and the OBOB GS1000 direct-reading spectrometer made in Germany and etc..Where the physical tese centre is equipped with the universal material testers ,impact test machines, Brinell & Rockwell hardness meter imported from England MNV-2T metallurgical phase microscope made by SHIMADZU Japan,Leica DM2500M front-view metallurgical phase microscope and DM6000M metallographic image analyzermade in Germany ,thermal dilatometer made by SHIMADZU Japan ,JSM-6150A scannungelectron microscope made in Japan ,KK USD12 ultrasonic flaw detector made in Germany and etc.Where the raw material analysis centre is equipped with the chemical analysis lab,molding sand tester,molding
sand hardness meter, coating tester and etc.
Package and Shipment
Our Service
Payment Advantage:
Alibaba Trade Assurance is Available.
The normal bank payment way and the other payment way just like Western Union are also Available.
Shipping advantage:
1. Shipping forwarder is with NVOCC qualification
2. Be the member of WCA
3. Freight forwarder with Class A,qualification of business operation without shipping
4. Guarantee the advantage of low freight cost
5. Agency be in every port of the world.All Chinese port with branch
6. With the ability of bearing the risk shipping
Urgently Delivery:
Depends on the exist mould,we provide this service for priority production and shipping.
Pls contact our sales manager to know your situation!
Click the Button on the right to Contact us!
One-stop solution provider for your mould & continuous casting machine:
· optimize the lifetime of your mould
· mould assembly
· inner & outer casing
· ladle turret
· tundish car
· guiding section
· straightening & withdrawal device
· flame cutter
· dummy bar
Sincerely Welcome you to contact us and have a visit to our factory!
The online sales manager and our enigneer will answer you any question!
To be the Steel "amazon",your requirement are our demands!
China