Top China Cold Mill Manufacturer & Exporter

Precision Cold Rolling Technology & Industrial-Grade Engineering Solutions for Global Metal and Heavy Grain Processing Industries.

Henan Jiujie Machine Co., Ltd.

Henan Jiujie Machine Co., Ltd. is a leading professional supplier of integrated heavy machinery, complete industrial processing equipment, and turnkey engineering services. Serving key global industrial chains, our capability spans two core sectors: high-capacity metallurgical roll forming systems, including high precision reversible cold rolling mills, and comprehensive food production and grain processing plants.

By merging decades of engineering experience with dynamic manufacturing workflows, we support clients from initial conceptual layouts to mechanical commissioning. Our machinery line handles tasks from heavy strip profiling to biological material flows: from wheat flour milling plants and large animal feed mills to specialty rice and bean sorting plants. We provide a bridge between raw material storage and ultimate end-product packaging, ensuring zero bottleneck throughput.

Our solutions cover multiple operational stages: material collection, raw storage conditioning, pneumatic vacuum conveying, fine grain milling, batch mixing, multi-stage sorting, and high-speed vertical packing. Through rigorous R&D, our mechanical systems integrate seamlessly with PLC digital architectures, allowing factory operators to command absolute control over production accuracy, line speed, and raw material utilization rates.

Engineered for Impact

We leverage state-of-the-art heavy engineering and precision machining to build machinery that meets global structural tolerances and operational safety standards.

Core Applications:
  • Cold Metal Roll Forming & Reduction
  • Pneumatic Material Handling Systems
  • Seed Conditioning & Gravity Destoning
  • Industrial Scale Flour Milling
20+
Years Engineering R&D
50+
Exporting Countries
100%
Water-Free Eco-Cleaning
0.005mm
Cold Roll Tolerance Limit

Industrial Mill & Processing Trends

Providing the critical "information gain" needed to understand modern heavy manufacturing. Learn how global demand and new technologies shape plant operations.

1. High-Precision Cold Rolling

The global metal processing market has transitioned toward thinner, stronger strip dimensions. Modern cold rolling plants require 6-High Reversible Mill configurations. These minimize strip edge drop and prevent roll bending under high forces, allowing operators to achieve micron-level gauge uniformity across stainless steel and aluminum coils.

2. Closed-Loop Automation

Manual controls are being replaced by PLC systems integrated with smart inline sensors. Real-time feedback loops measure metal thickness, grain moisture, and material flow rates. This allows immediate micro-adjustments that prevent mechanical wear and maintain quality control throughout production cycles.

3. Water-Free Dry Processing

Stricter environmental regulations demand dry processing technologies. For example, our water-free grain cleaning and de-stoning systems remove silica, sand, and husks without generating wastewater. This approach reduces compliance costs and supports eco-friendly plant footprints.

Certifications & Quality Assurance

Our milling and processing systems are certified under the ISO9001:2015 Quality Management System and carry full CE Certification. We build our equipment to meet strict European Union structural, mechanical, and electrical guidelines.

By utilizing high-grade structural alloys, automated welding processes, and durable coatings, Henan Jiujie machinery delivers long service life, low maintenance requirements, and minimal energy consumption. Our water-free grain cleaning systems eliminate wastewater runoff, helping industrial plants comply with local environmental standards.

Engineering Standards Compliance
ISO 9001 Certified Design
EU Conformity (CE) Standard
Eco-Friendly Dry Process Certification
EU Environmental Compliance

Production Equipment & Manufacturing Capability

Our heavy fabrication facility is equipped with high-precision CNC machinery and automated lines to turn advanced engineering designs into reliable industrial equipment.

Metal Plate Cutting Process
Cutting
Metal Punching Operation
Punching
Welding Process
Welding
Machine Surface Painting
Painting
Machinery Assembly Line
Assembling
CNC Laser Cutting Machine
Laser Cutting Machine
Precision CNC Lathe
CNC Lathe
Heavy Punching Machine
Punching Machine
CNC Bending Machine
Bending Machine
Electrostatic Painting Line
Painting Line
Automatic Welding Equipment
Welding Machine
Heavy Metal Sawing Machine
Sawing Machine

To maintain consistent quality, we utilize advanced manufacturing tools, including CNC laser cutters, high-tonnage bending machines, and high-precision CNC lathes. These tools are supported by CNC machining centers, boring machines, and surface grinders that keep parts within tight design limits.

Our key production processes—such as steel plate laser profiling, automated robotic welding, CO₂ arc welding, and electrostatic powder coating—help prevent corrosion and wear in challenging industrial environments, ensuring reliable long-term performance.

Macro Solutions & Technical Roadmap

Helping global purchasing departments integrate equipment, automate workflows, and design efficient processing plants.

Stage 1: Pre-Feasibility & AutoCAD Layouts

Our engineers evaluate the raw materials, planned output, and local site conditions to design a custom processing layout. We provide detailed 2D and 3D AutoCAD drawings to optimize spatial efficiency, improve material flow, and prevent production bottlenecks.

Stage 2: Precision Manufacturing & Integration

With the design finalized, we build the core machinery—including raw storage, pneumatic conveyances, cleaners, destoners, and final packaging units. Central PLC control panels are integrated to link all mechanical systems into a single, coordinated production line.

Stage 3: Commissioning & Operator Training

Our technical team supervises the installation and guides initial system testing. We train local operators on routine maintenance, sensor calibration, and PLC adjustment, helping your plant run smoothly from day one.

Global Export Network

Our logistics team handles heavy transport customs, shipping documentation, and multi-port coordination to ensure on-time delivery across North America, Europe, Southeast Asia, and the Middle East.

Complete Lifecycle Support & Localized Services

Our responsibilities continue long after delivery. As an industrial partner, Henan Jiujie Machine Co., Ltd. provides full lifecycle support for all our systems. This starts with pre-sales engineering consulting and extends to real-time remote support and spare parts provisioning.

We work closely with customers to keep operational costs low and minimize downtime. Our AutoCAD-based designs and CNC machining practices ensure that replacement parts match original specifications, making maintenance straightforward and protecting your equipment investment over the long term.

Frequently Asked Questions

Technical answers to common questions about cold rolling mills, grain cleaning systems, and plant installation.

What makes a 6-High Reversible Cold Rolling Mill better than a 4-High mill? +
A 6-High mill adds intermediate rolls between the work rolls and backup rolls. This design lets operators adjust the work roll profile and roll shifting, reducing strip edge drop and improving shape control. It is well-suited for rolling harder materials like stainless steel or silicon steel to thin, consistent gauges.
How do water-free grain cleaning machines protect the environment? +
Standard grain cleaning methods often rely on water to wash away dust, sand, and husks. Our dry cleaning systems use specific gravity differences, vibrating sieves, and closed-loop dust extraction instead. This removes stones and surface contaminants without water, eliminating wastewater discharge and reducing utility costs.
Can your PLC systems integrate with older, third-party equipment? +
Yes. Our control systems use open communication standards like Modbus and Profinet. This allows our PLC control panels to connect with existing equipment, sensors, and material handling systems, giving operators a single interface to monitor the entire plant.
What steel grades and structural standards are used for your grain storage silos? +
We use high-strength, double-sided galvanized steel plate (equivalent to Z275 or Z600 coatings) to provide reliable corrosion resistance. Structural calculations follow ASTM, Eurocode, or national standards, accounting for local wind loads, seismic conditions, and grain pressure.
How does Henan Jiujie handle international shipping and on-site assembly? +
We ship large machinery in standard or open-top ocean containers, applying rust-prevention coatings and secure framing to protect equipment during transit. Once on site, our engineers supervise assembly, connect electrical lines, and calibrate the PLC system prior to final handover.