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Cold Rolling Mill, Continuous Galvanizing Line and Annealing Line Equipment
We engineer and manufacture core mechanical systems for Cold Rolling Mills (CRM), Continuous Galvanizing Lines (CGL), and Continuous Annealing Lines (CAL). Our solutions are engineered for long-term durability and precision control in strip thickness, flatness, and mechanical property uniformity—across carbon steel, stainless steel, and AHSS grades. Our equipment and sub-assemblies are used at various cold rolling operations, including tandem cold mills (TCM), coupled pickling and tandem lines (CPL/TCM), reversing cold mills (RCM), and skin-pass mills (SPM).
Leveraging decades of expertise in continuous strip processing, we deliver custom-engineered equipment for Continuous Galvanizing Lines (CGL) and Continuous Annealing Lines (CAL). Our solutions include advanced furnace sections, tension levellers, air knife systems, strip handling equipment, and cooling towers. By supporting every stage from cold reduction to thermal and surface treatment, our systems ensure maximum line efficiency, strip stability, and compatibility with downstream operations—including those requiring precise coating weight control.
We also specialize in the manufacturing of steel rolls used in the cold rolling mill. To find more information on this, please visit our Steel Rolls for Steel Mills page.
Cold Rolling Mill Equipment
Core Mechanical Parts: Mandrels, Coilers, Rolls, and Roll Housing and Chock Assemblies
We supply critical components for cold rolling stands, including mandrels, coilers/uncoilers, rolls, and roll housings engineered for high-load, high-precision operation.
Coil Handling Systems & Coil Transfer Cars
We engineer and fabricate heavy-duty coil transfer cars and handling systems to clients’ drawings and coil sizes. Our coil transfer cars can be configured as 3-skid, rail-guided or curved-track drive. Hydraulic lift and coil centering options are available along with PLC-based position control systems for accurate alignment with uncoilers, recoilers, or mandrel stations.
3 Skid Coil Transfer Car
Max load: 105 Ton
Max Speed: 40 mpm
Hot Coil Transfer Car
Motor Driven
Gear unit for curved rail
Coil Transfer Pallet Conveyor
Load: 38 ton
Speed: 30 mpm
Roller Table
Speed: Approx 75/150 m/min
Size: 430mm dia x 2130mm body
Continuous Galvanizing Line Equipment
Non-Oxidation System
Our non-oxidation system minimizes oxygen concentration around the zinc pot to prevent strip surface oxidation prior to galvanizing. By maintaining a controlled inert atmosphere, the system supports improved strip surface quality, reduced dross formation and enhanced coating uniformity.
Dimensions: 7600 × 1600 × 1600 mm
Weight: 4,500 kg
Materials: Titanium, Ceramic, SS400, and other high-temperature, corrosion-resistant alloys
Zinc Pot Roll Equipment for Hot-Dip Galvanizing Lines
Our zinc pot roll unit is optimized for continuous hot-dip galvanizing and aluminizing lines. It features a motorized submerged scraper system that effectively removes zinc and aluminum dross from the zinc pot, ensuring consistent roll surface quality and minimizing coating defects. A preheating furnace provides rolls with uniform temperature distribution and prevents thermal shock and extends roll lifespan.
Constructed for long-term operation in high-temperature and corrosive environments, this unit supports stable strip guidance, reduces vibrations, and lowers overall maintenance downtime. Ideal for automotive-grade coating performance, it integrates seamlessly with air knife systems.
Continuous Galvanizing Line (CGL) Air Knife System
Trusted by global steel producers like POSCO, this system delivers optimal zinc or aluminum coating performance with exceptional accuracy and energy efficiency. Designed for high-speed automotive-grade strip coating, our air knife system is built for advanced CGLs.
Key Features:
Learn more about our Air Knife System on our Coil Processing Equipment Page and our Air Knife System Brochure.
Specialized Rolls for Strip Processing Lines
Equipped with centrifugal casting foundries in-house, we make centrifugally cast rolls for furnace hearth, stabilizer and sink applications in Continuous Annealing Lines (CAL) and Continuous Galvanizing Lines (CGL). These rolls are designed to operate under extreme thermal and mechanical stress, ensuring dimensional stability, scale resistance, and long service life.
Max diameter: 1,400 mm
Max length: 4,000 mm
To find more information on our steel rolls please visit our Steel Rolls for Steel Mills page.
Hot Rolling Mill Equipment
Precision-engineered equipment and parts for hot rolling mills, supporting both flat rolling (hot strip mills, plate mills) and long rolling (bar mills, section mills).
Our expertise covers the fabrication of a wide range of parts critical for maintaining tight dimensional tolerances, ensuring uniform mechanical properties, and maximizing mill uptime. Our deep understanding of high-temperature material flow, wear resistance, and load-bearing design ensures that every component we fabricate enhances the efficiency, durability, and performance of hot rolling operations.
Equipment parts that we have fabricated for Hot Rolling Mills of all types include:
- Heating Furnace Frame
- Cradle Roll Frame
- Housing Revamping Work Roll Lifting System
- RI Mill Spindle Carrier
- Pinch Roll Chock
- Fable Gear Box
- Roll Coupling and Chock
- Hot Coil Transfer Car
Hot Rolling Mills – Flat
Hot Strip Mill Equipment Part Fabrication
We manufacture finishing mill online roll profiler frame assemblies and side frame assemblies for hot strip mills producing flat steel strips. Flat strip mill assemblies, particularly finisher scale breaker frames and work roll changing devices are one of our main strengths
- Entry Coil Car Assembly
- Cooling Bed
- Descale Roller Assembly
- Exit Car
- Tilting Roller Table
- Cooling Bed Turner
Scale Breaker Technology for Roughing and Finishing Section Mills
Our scale breaker is designed to descale water pressure and roller force to achieve consistent surface finish with minimum scaling for roughing and finishing mills.
Mill Stand Technology Reduces Roll Surface Defects
Our capacity to develop roll grinding apparatus inside the mill stand offers the unique advantages of extending roll life, reducing vibrations and minimizing surface defects of the roll.
We design, engineer, manufacture and automate entire down coiler lines for our large mill clients.
Heavy Plate Rolling Mill Equipment Parts Fabrication
We fabricate plate mill segment frames, roller tables and heavy plate mill bloom turners and assemblies for roller feeders. We also fabricate hot leveler cassette assemblies which are specially designed to minimize downtime for tool changes.
Past projects for heavy plate rolling mills include:
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- 120-Ton Car Assembly
- Table Gear Box
- Plate Roller Table
- Turn Table Roller
- Slab Cutting Roller Table
- Hot Leveler Cassette Assembly
- Feed Roller Assembly.
- Magnet Piler Machine
- Plate Mill Roll Chock
Hot Rolling Mills – Long
Section Mill Equipment Parts Fabrication
Our portfolio of projects for section mills includes roughing and finishing trains, V-chock assembly, descale roller assembly, bar mill cross traverser, exit car, tilting roller table and cooling bed turner.
Electric Arc Furnaces & Continuous Casting Line Equipment Fabrication
Since our main manufacturing facilities opened in 1987, we have expanded from serving South Korea’s domestic steel industry to becoming a trusted engineering and manufacturing partner for major steel mills worldwide.
Our expertise spans the entire upstream steelmaking process, where we fabricate and assemble precision equipment for electric arc furnaces (EAFs), vacuum degassing systems, continuous casting lines, and primary rolling mills. We manufacture furnace shells, roof assemblies and other high-wear components for EAFs, ensuring durability under extreme thermal and mechanical stress.
We fabricate and manufacture-to-print new and refurbished parts and assemblies for continuous casting plants that produce carbon steel and stainless-steel billets, blooms and slabs of various thicknesses and widths. Our capabilities also extend to the fabrication of parts for vacuum treatment technologies such as RH (Ruhrstahl-Heraeus) and VTD (Vacuum Tank Degassing) systems, essential for refining molten steel and ensuring high-quality production.
Electric Arc Furnace Fabrication and Assembly Projects
We are a global leader in fabricating parts for electric arc furnaces (EAFs) for mini melting mills. Our recent projects include parts for furnaces with capacities of 80 tons to 150 tons and with annual production of over 1,000,000 metric tonnes. We manufacture upper and lower furnace shells, furnace gantry systems, rockers, rocker rail, tilt cylinder & tilting platform and laminated hooks for up to 120-ton capacities.
With successful projects for large- to mini-mills in Korea, Japan, Thailand and China, we are an ideal partner for your large-sized fabrication, refurbishing and assembly needs.
Continuous Casting Line: Ladle and Tundish Equipment
Our main service is fabricating projects to clients’ specifications. Our shops have experience fabricating equipment for continuous casting of all types: slab casting, bloom casting, beam-blank casting, billet casting and vertical casting. With extensive experience fabricating continuous casting line equipment, we deliver high-precision solutions for Ladle/Tundish Transfer & Straightening. Our expertise ensures precise molten steel flow control from furnace to mold, with engineered components that optimize strand alignment, thermal stability, and overall casting efficiency such as:
- Teeming Ladle
- Doors at Feeding & Tapping Spout
- Torpedo Ladle Car Wheel
- Filler Injection
- Withdrawal Straightener Unit
- Discharge Roller Table
- RH-VTD Vacuum Tank Degasser Ladle Transfer Car
- Line Roller
Ancillary Casting & Mold Equipment
We also provide design and engineering services for select items, such mold oscillators, beam blank segment, electromagnetic ruler braking mold and EMBr oscillator for continuous casting lines.
Equipment we have fabricated include:
- EF Brick Builder
- Turndish Car
- Ladle Tilting Transfer Car
- Slag Pot Turn Table
- Slag Pot Transfer Car
- Electromagnetic Ruler Braking Mold Frame
- Embr Oscillator
- Mold Oscillator Design & Fab
- Beam Blank Segment
- Apron Assembly and Pinch Roll Assembly
- Vacuum Tank Degasser (RH – VTD) Shell & Cover
- RH Vessel Repair Car
Slab Handling & Storage
We fabricate and supply reliable systems for moving and stacking solidified slabs, including specialized pick-up cranes, slab tongs, conveyor segments, and dummy bars to initiate the casting process. We can customize our solutions to support casting a wide range of steel grades, slab thicknesses, and widths.
- Slab Pick-Up Crane
- Slab Tong
- Slab Segment
- Slab Dummy Bar
- Slab Piler Machine
- Slab Dummy Bar
Steel Manufacturing Mill Project Experiences
Our clientele consists of major iron and steel strip, billet, plates and casting producers, as well as Tier 1 turnkey steel mill producers that outsource the production and refurbishment of their equipment and components. Our long-term clients include POSCO E&C, Hyundai Steel, Hyundai Rotem, Nippon Steel, and more. Our complete steel mill project references are included in the PDF below.
If you are looking for rolls for rolling mills, plate mills or any other segments, our consortium’s roll manufacturer offers a comprehensive range of rolls including furnace rolls, pinch rolls, bridle rolls and guide rolls. Please visit our Steel Rolls page to learn about our rolls.
For coil processing lines, including cut-to-length and slitting lines, please visit our Cut-to-Length and Slitting Lines page to learn how we can minimize knife-changing downtime with our robotic slitter line.
For custom AGCs, push-up cylinders, and mold oscillating cylinders, our Custom Hydraulic Cylinders page provides detailed specifications and engineering examples for your cylinder needs.
Project Case Study: Mold & Oscillator for Continuous Casting
Project Experience – Mold & Oscillator for Continuous Casting
A project for fabrication of Mold and Oscillator, that was originally designed by SMS, was carried out at POSCO’s Pohang Iron & Steel in Gwangyang, Korea. The 10 months long project involved remodeling and fabrication of the mold and oscillator to accommodate ABB’s agitator with electromagnetic ruler braking (EMBR) technology for thin slab casting. The joint development efforts between LPR, ABB and POSCO delivered a highly cost-effective mold and oscillation solution with increased mold life, high homogeneity of cast steel, improved cast speed, and superior steel cleanliness.
EMBr Technology in Continuous Casting
When casting steel slabs, EMBr is an effective way to generate a laminar flow of molten metal within the mold. This laminar flow reduces several surface defects, including due to meniscus freezing, slag entrainment and other intermittent defects. EMBr assists in controlling flow by applying static or moving electromagnetic forces through the core of the strand. The electromagnetic field controls the flow by generating induction current in the strand which in turn generates force or “brakes” opposite to the original flow of the melt. EMBr also effectively doubles the life of the mold due to its ability to streamline the flow of the melt.
Project Scope
Weighing approximately 28tons, a set of 4 mold frames were redesigned in collaboration with POSCO and manufactured to accommodate the ABB EMBr flow control system. The project was undertaken by POSCO, with POSCO E&C being the co-designer and POSCO ICT the system designer, and LPR providing the comprehensive fabrication services.
Fabrication Challenge
Fabrication of mold is a challenging task, with numerous inbuild cooling channels and the need to handle excessive loads within its constrained dimensions. The cooling system within the mold needs to be designed such that almost 40% of the total superheat and 30% of the sensible heat is removed from the strands through the molds. To achieve this, sophisticated materials in combination with precision welding was used. Additionally, thorough post fabrication testing was conducted, including high pressure water pressure testing at 12 bars, before the molds are cleared for delivery.
LPR having extensive experience in fabrication of complex equipment, such as molds and oscillators for casting lines, takes pride in their state of the art facility, exceptionally skilled workforce, and testing facility. LPR completed the fabrication in time, budget and quality to meet our client’s performance expectations.
Project Case Study: Upgrading Heavy-Plate leveler from 800 tons to 900 tons at a Plate Mill
Upgrading Heavy-Plate Leveler with 4 Hydraulic Cylinders
Our engineers were retained by a global-scale steel mill in South Korea to refurbish and upgrade the frame and hydraulic system of a heavy-plate leveler, a part of the plate mill at their steel plant. The project was undertaken due to a noticed decrease in equipment performance and visible degradation. The refurbishing and upgrade project included structural design and operational changes, material upgrades, and replacement of key components resulting in tangible improvements to equipment performance and lifespan.
Project Scope
The scope of work completed by LPR Global for this project includes the following items:
The successful completion of the project resulted in quantifiable benefits to equipment performance and improvements in equipment operability, durability, and maintainability.
Measured Outcomes of Plate Mill Refurbishing Project
| Number | Item | Existing Equipment/ Conditions | New Equipment/ Conditions |
|---|---|---|---|
| 1 | Downward Force applied by Hydraulic Cylinder | 800 ton (based on 4 cylinder operation) | 900 ton (based on 4 cylinder operation) |
| 2 | Operating Pressure | 250 bar | 280 bar |
| 3 | Maximum Fluid Velocity | 208 L/min | 208 L/min |
| 4 | Pump Specifications | For High Pressure: Gear Pump For Low Pressure: Vane Pump | Variable Displacement Piston Pump (for all scenarios) |
| 5 | Pump Control | None | Horsepower Control |
| 6 | Hydraulic Piping Port Connection | SSA Flange Connection (max. pressure 210 bar) | SAE Flange Connection (max. pressure 420 bar) |
| 7 | Hydraulic System Directional Valve | Conventional/ Standard Solenoid Valve used | Solenoid Valve for Shock Absorption used |
| 8 | Main Cylinder Speed Control | None | Cylinder speed control method implemented |
| 9 | Hydraulic System Piping Pressure | Possibility of high pressure occurring in hydraulic piping during cylinder operation causing damage to piping | Pressure relief valve implemented to protect hydraulic piping |
Identified Equipment Issues with Existing Heavy-Plate Leveler:
Our initial inspection identified the following issues with the existing leveler and hydraulic system:
Refurbishing Works Completed
Design Changes
Material Upgrades
Component Replacement
Project Case Study: Cold Leveler Entry Guide Manufacturer for Plate Mill and Steckel Mill
A global-scale steel mill retained US Korea Hotlink to provide contract manufacturing services to fabricate and assemble an entry guide (roller guides) for a cold leveler at a combination Plate and Steckel Mill.
Combination Plate and Steckel Mills, or Plate-Steckel Mills, can produce strips and plates in a single mill line, allowing the mill to adjust the output product to meet demand. The cold leveler is located at the plate finishing area of the steel mill to eliminate defects; an entry guide for the cold leveler ensures that steel workpieces are aligned when beginning the leveling process, preventing defects caused by misalignment. US Korea Hotlink completed the sourcing of materials, metal fabrication, and assembly of the entry guide.
Cold Leveler Entry Guide Assembly Fabrication
Each component of the entry guide assembly was fabricated based on a specific material standard and material grade, designated by the client.
| Component | Material Standard | Material Grade |
|---|---|---|
| Guide Beams | EN10025 | S275JR |
| Wear Plates | EN10083 | 42CrMo4 |
| Main Roller Frame | EN10025 | S275JR |
| Trolley | EN10025 | S275JR |
| Trolley Wheels | As Made | As Made |
| Cylinder | As Made | As Made |
| Cylinder Pin | EN10083 | 42CrMo4 |
| Axle | EN10083 | 42CrMo4 |
| Beam Bush | EN1982 | CuSn12-C |
| Side Bush | EN1982 | CuSn12-C |
| Bush | EN1982 | CuSn12-C |
| Spacer | EN1982 | CuSn12-C |
Fabricated Components Testing and Inspection
The client mandated testing and inspection of the fabricated parts to ensure quality; some of the tests performed include: