LMM GROUP is a manufacturing company engaged in one-stop solution for global industrial furnace heat-resistant alloy.
LMM is specialized in manufacturing 900-1250℃ heat-resistant alloy products.
If you are looking for furnace rolls, contact us today to learn more.
Mainly products: big furnace rolls, Silicon steel wire furnace roll, Wide and thick plate furnace roll, Carbon sleeve roll core, Sink rolls for galvanizing lines, Stabilizing Roller
Tpye：big furnace rolls(φ2000, φ1524, φ1300, φ1200, φ1000, φ900, φ800, φ650, φ600, etc.), Wide and thick plate furnace roll（φ380、φ400 etc.)
Cold-rolled sheet galvanizing line (CGL),
continuous withdrawal line (CAL),
wide and thick plate heat treatment production line,
silicon steel heat treatment production line and other heat treatment furnace production lines.
Our product have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time
Working condition: 500-1200℃
Products: heat treatment of steel strips, steel plates, parts, hot dip galvanizing, etc.
Function: conveying steel belts, steel plates, parts
Outer diameter: 70-2000mm
Wall thickness: 10-60mm
(Length of roller body): 1600-8000mm
Glass roll Ra≤0.2μm
Galvanized wire furnace roller (before spraying) Ra≤0.8μm (spray thickness) Ra≤0.05μm
Service life: ~10 years
Ultra-long furnace roll centrifugal casting patented technology
The super-long furnace roll manufactured for Japan Asahi Glass, with a diameter of φ365, a roll surface length of 8000mm, and a total furnace roll length of 9375mm, is currently the longest furnace roll in the world.
The production process of furnace roll
Smelting ⇒ Centrifugal casting ⇒ shot blasting ⇒ Check (appearance, size) ⇒ Machining ⇒ Inspection (PT, static balance) ⇒ Correct stastic balance, car bevel
Smelting ⇒ Metal mold casting ⇒ shot blasting ⇒ Check (appearance, size) ⇒ Machining groove ⇒ Inspection (PT, Appearance, Dimensions)
Outsourced forgings ⇒ Machining ⇒ Inspection (PT, Dimensions
Cone & Spindle head
Assembly welding ⇒ Inspection (PT, Dimensions)
Cone & Spindle head & Roll body
Group welding ⇒ Inspection (PT, Dimensions) ⇒ Finish machining ⇒ Inspection (PT, static balance) ⇒ Packing and pickup
Key Technology of Furnace Roll Production
1. Purification technology of molten steel using electric arc furnace smelting process
2. Improve the compactness of large-diameter furnace rolls by optimizing the speed of the centrifuge
3. Improve the quality of the roll body by controlling the processing volume of the outer circle of the furnace roll
4. Use metal mold to cast the cone to improve the casting quality and weldability of the cone
5. Improve the purity of molten steel by using bottom pouring process
6. Vibrating Stress Relief treatment before roll body processing and welding to eliminate casting and processing stress
7. Use special customized welding consumables to improve the performance of the weld
LMM GROUP produce heat-resistant-alloy products with an operating temperature range of900-1250℃.we provide integrated solutions using heat-resistant alloys for indus-trial furnaces around the world. LMM manufactures all types of furnace internalsincluding burners，radiant tubes furnace rolls, combustion systems and variousfurnace rolls for the metallurgical industry and also lehr rolls, steel rolls, lift-outrolls, donut rolls for the glass industry, plus ethylene cracking furnace tubes andhydrogen, methanol, and ammonia conversion furnaces tubes and other productsfor the petrochemical industry.
Core competitiveness: one-stop service
Full metallurgical production line:
Vertical one-stop shop:
Product assembly, processing, furnace mixing grinding, furnace rod spraying, complete the whole process of wheel mixing.
Full line of radiant tube and furnace rod products, combustion system, W-type, U-type, P-type, L-type, electric radiant tube, etc., three knuckles and six arms, bearing bushes and sleeves, metallurgical furnace silver, bottom furnace furnace, silicon steel wire furnace Sticks, etc., break through the bearing bushes, bushings, scrapers and other products required for galvanizing, and research and improve the service life of sinking knives, stable mixers, and yoke arms.
Gold Service Contracts
We developed the Gold Service Program to improve customer service, communication, processing time, and order turn around.
Local Technical Sales
Our technical sales team coupled with our customer service organization equip us to be ready to handle your challenges.
Our corporate procurement, engineering and sales professional team have demonstrated success in taking over large, complex outsourcing initiatives.
Quality assurance is one of the various services that we offer. Our quality department and process is ISO 9001 compliant and in some plants certified.
LMM GROUP is a manufacturing company engaged in one-stop solution for global industrial furnace heat-resistant alloy.LMM is specialized in manufacturing 900-1250℃ heat-resistant alloy products.
We own workshop area more than 180,000 m2 and 620 employees.The plant has production equipment 698 sets and National level laboratory,with an annual production capacity of 24,000 tons.
All the managements and technicians have more than 15 years’ experience in centrifugal and static casting production of heat-resistant alloy. LMM accumulated rich experience and formed its own unique patented technology and know-how with 191 patents which are all applied to our products and manufacturing.
Are You Looking for Furnace Rolls?
No matter what the use, LMMGROUP offers high-quality furnace rolls at competitive prices for your next project. If you are looking for furnace rolls, contact us today to learn more.
Q:Are you a trading company or manufacturer?
A:LMMGROUP is an industry and trade integration company.
Q:I have some special requirement about specifications,can you do it?
A:Yes.We have a well-rounded product range, which endows us with the capability of applying many special specifications. Please feel free to contact us with yours.
Q:Do you accept OEM service?
A:Yes, we do.
Q:What is your delivery time?
A:It depends on the size/complexity of your order and our own production schedule. Usually we provide a faster delivery than the industry’s average.
Q:What is the payment term?
A:Our payment terms are negotiable.
Q:Can I have my own logo on the product?
A:Sure, we can apply your own logo on the products according to your drawings
Special product design, please send specific data and drawings to our mailbox or form