In today’s competitive global market for section steel, manufacturers face unprecedented challenges: fluctuating raw material prices, rising energy and labor costs, stricter environmental regulations, and increasing customer demands for dimensional accuracy, shorter lead times, and greater product diversity. Many steel plants are caught in a dilemma: outdated equipment restricts output and quality, while new projects must deliver clear, measurable returns on investment.
Especially with the rapid development of construction steel structures, bridges, machinery manufacturing, and prefabricated buildings, the demand for H-beams, I-beams, and channel steel continues to grow. However, only producers offering high quality, low costs, and fast delivery can truly occupy the profitable segment of the market.
A stable, high-precision, low-consumption, and easy-to-maintain section steel rolling line is no longer just production equipment—it is the foundation of a company’s core competitiveness. We specialize in providing turnkey solutions for semi-continuous section steel rolling lines designed for manufacturing H-beams, I-beams, channel steel, and angle steel. These lines reliably convert continuous casting billets into high-quality, high-precision profiles. Whether for new greenfield projects, old line upgrades, or capacity expansion, our mature technology, reliable equipment, and full-cycle services help customers invest less, ramp up faster, operate steadily, and profit more.
I. Product & Process: Adapted to Mainstream Markets, Stable & High-Yield
This 200mm Section Steel Rolling Line is based on proven technology, designed for mass production of carbon structural steel and high-strength low-alloy structural steel. It uses 150×150mm continuous casting billets with a fixed length of 6 meters (minimum short billet length: 3 meters) and a maximum single billet weight of 1000 kg.
The line produces 80–200mm H/U/I section steel with finished product lengths of 6–12 meters, fully compliant with standards including GB/T 11263－2005, GB/T 706－2008, and JIS. Products are widely used in construction, steel structures, bridges, machinery manufacturing, infrastructure, PV bracket systems, factory columns, and other fields.
Every finished profile undergoes strict control of dimensional accuracy, straightness, and surface quality. Bundled products feature uniform dimensions, with a maximum bundle size of 500×500mm and a maximum bundle weight of approximately 6 tons, facilitating storage, transportation, and automated downstream processing, greatly enhancing the customer experience.
Core Production Process
Qualified billets → Feeding roller table → Walking beam reheating furnace → High-pressure descaling → Roughing mill group → No.1 crop shear → Finishing mill group → Multi-length flying shear → Cooling bed → Overhang straightener → Grouping table → Cold saw cutting → Automatic stacking → Strapping & warehousing
The line adopts a semi-continuous rolling process with a compact layout, smooth logistics, and minimal heat loss, maximizing efficiency within a limited plant area—ideal for both new construction and renovation projects. Full-process automated linkage reduces manual intervention, surface damage, and temperature loss, ensuring both production rhythm and consistent product quality.
II. Line Configuration: 15-Stand Semi-Continuous Mills, High Rigidity & Precision
This line features a 15-stand semi-continuous rolling layout, with clearly divided roughing and finishing stages. It balances high reduction capacity and high-precision forming, representing a proven, low-failure classic configuration in the industry. Verified in numerous projects, the line offers stable operation, simple maintenance, and high spare parts universality, resulting in much lower long-term operating costs than custom-designed equipment.
1. Roughing Mill Group: 7 Stands of Φ550 Closed Housing Mills
The roughing zone is arranged in an H-V-H-V-H-H-H sequence, combining horizontal and vertical mills. Roll diameter ranges from Φ520–700mm, barrel length 1000mm, with cast steel rolls for high load capacity and wear resistance.
- Max rolling force: 3000 kN
- Max rolling torque: 350 kN·m
- Main drive: 800 kW DC motor (individual drive)
Key advantages:
- High rigidity and large reduction for 7 passes of efficient rolling
- Hydraulic motor rapid screw-down + manual fine adjustment for high precision
- Hydraulic roll change cart for minimized downtime
- Axial roll adjustment ±3mm to ensure pass alignment
The roughing stage preliminarily shapes the billet into a stable intermediate blank, laying the foundation for high-output, stable rolling.
2. Finishing Mill Group: 8-Stand Continuous Mills (4 Universal + 2-High)
As the core of profile precision, the finishing group consists of 4 universal mills + 4 two-high mills, each driven by a 1250 kW DC motor. Maximum exit speed reaches 5 m/s, with automatic micro-tension control to ensure stable dimensions, no waviness, no twisting, and straightness.
Universal mills feature a short-stress line, tie-rod connected, housingless design for exceptional rigidity:
- Horizontal and vertical rolls precisely control web thickness, flange width, and dimensions
- Hydraulic rapid screw-down, axial adjustment ±4.5mm
- Integral roll system extraction and quick connectors enable fast roll changes
- Four-row cylindrical roller bearings for high load capacity and long service life
- Independent or linked gap adjustment for high flexibility in size change
This finishing group consistently delivers superior dimensional accuracy, straightness, and surface quality, enabling strong premium pricing—especially for high-end structural steel and export orders.
3. Auxiliary Core Equipment
- Multi-length flying shear: Crank-type, start-stop operation, cutting accuracy ±20mm
- Walking rack cooling bed: 78×16m, uniform cooling, no deformation or scratching
- Overhang straightener: 10-roll (5 top, 5 bottom), max speed 5 m/s
- Cold sawing unit: Fixed + moving saws, clean cuts, accurate length control
- Automatic stacker: Electromagnetic chuck, servo-controlled, 12-second cycle, auto-aligned stacking
The entire line from rolling to finishing is highly automated, with minimal labor, low loss, and high efficiency, supporting stable, continuous production.
III. Core Equipment Advantages: Durable, Maintainable, Stable, Efficient
1. Walking Beam Reheating Furnace
Three-zone heating (preheating, heating, soaking), natural gas-fired, billet heating to approx. 1250°C, uniform temperature, low scale loss, high thermal efficiency, and low energy consumption.
2. High-Rigidity Rolling Mills
Universal and closed two-high mills offer high strength, stable performance, and long-term dimensional stability, ideal for continuous production of heavy profiles.
3. Fast Roll Change System
Hydraulic-powered integral roll extraction and quick connectors drastically reduce roll change time and improve equipment utilization.
4. Full-Process Automation
Level 1 + Level 2 computer control system, fully automated speed, length, straightening, and stacking control, with traceable parameters and stable operation.
5. Eco-Friendly & Low Consumption
High water circulation rate, complete dust removal systems, and compliance with the latest environmental standards for smooth project approval.
6. Stable Hydraulic & Lubrication Systems
Multiple hydraulic stations (working pressure 14 MPa) and forced thin-oil lubrication ensure low wear, long service life, and minimal unplanned downtime.
IV. Real Customer Value: Controllable Investment, Fast Ramp-Up, Long-Term Savings
1. Affordable & Controllable Investment
Mature technology, compact layout, reduced land and civil work costs, and optimized configuration deliver a reasonable total investment with a shorter payback period.
2. Fast Production Ramp-Up
Proven system design ensures short installation and commissioning periods, smooth cold and hot commissioning, quick ramp-up to full capacity, and rapid cash flow generation.
3. Low Operating Costs
- High yield, low scale loss, cutting loss, and straightening loss
- Industry-leading power, water, and roll consumption per ton
- High automation reduces labor requirements
- High equipment universality lowers spare parts inventory and maintenance costs
4. Higher Profitability Products
Excellent dimensional accuracy, surface quality, straightness, and packaging lead to higher customer satisfaction, fewer returns, and stronger pricing power.
5. Full Lifecycle Service & Support
We provide complete turnkey solutions:
- Pre-sales: Process planning, layout, investment estimation, product positioning
- During project: Manufacturing, inspection, installation guidance, commissioning
- After-sales: Training, production support, spare parts, 24-hour on-site response
We ensure customers purchase with confidence, operate with peace of mind, and profit reliably.
V. Our Position: Trusted Partner for Section Steel Rolling Lines
We are not just an equipment supplier—we are a full-line solution expert for section steel rolling lines. From angle steel and channel steel to medium-sized H-beams and I-beams, from single equipment to full-line delivery, from old line upgrades to new plant planning, we help steel producers improve quality, increase output, reduce costs, and strengthen competitiveness.
We understand that choosing a rolling line means choosing production and profitability for a decade or longer. Therefore, we prioritize mature technology, reliable equipment, easy maintenance, and low long-term cost. We do not use decorative or overcomplicated systems—only solutions that create real, sustained value for our customers.
As the steel industry transitions toward high efficiency, green production, smart manufacturing, and high-end quality, choosing a reliable section steel line means choosing a more predictable future.
We look forward to cooperating with steel producers worldwide to build efficient, stable, and sustainable section steel manufacturing systems.
