Zhongmao Ruitong Hebei Grain Machinery Manufacturing Co., Ltd., formerly known as Langfang Zhongyuan Grain Machinery Factory, was established in 1998. Located in Lilan Town, Yongqing County, Langfang City, Hebei Province, the company has long specialized in the grain storage equipment industry. As a qualified supplier for Sinograin and a designated procurement partner for Wilmar International (Yihai Kerry) and COFCO Sugar, the company focuses on the R&D and manufacturing of equipment for grain intake, discharge, cleaning, and storage, integrating production, sales, maintenance, and import-export operations. Guided by the philosophy of "integrity, virtue, and harmonious development" and a product ethos prioritizing "quality first, service excellence, follow-up support, and lifetime warranty," the company continuously upgrades its products to meet market demands. Thanks to its superior quality, it serves hundreds of national and provincial grain reserve depots across China. Having evolved from a local machinery factory into a comprehensive, specialized domestic manufacturer of grain machinery, the company actively expands into both domestic and international markets, driving the localization of grain storage equipment and the growth of export operations.
The company is located in Lilan Town, Yongqing County, Langfang City, Hebei Province, occupying a total area of 30,000 square meters, including 8,000 square meters of production workshops equipped with robust manufacturing infrastructure. An independent quality inspection department has been established to oversee the inspection of purchased and outsourced components, in-process production checks, and final product inspections, ensuring a comprehensive quality control workflow. The facility features a complete grain machinery processing system - capable of cutting, welding, bending, and assembly - and includes a performance testing laboratory for finished units, enabling end-to-end quality control from raw material intake to final product dispatch. With a registered capital of RMB 20.17 million and a professional team dedicated to production and quality assurance, the enterprise leverages modern manufacturing techniques and industry best practices to design and produce grain machinery tailored to customer needs, possessing the comprehensive capability to undertake complete grain processing equipment projects and grain storage facility engineering.
Our Product
The company specializes in a comprehensive range of grain storage machinery and equipment, covering the entire operational chain of grain storage. Our product portfolio includes: grain cleaning equipment (such as pulse dust-collecting cleaning screens, rotary-vibratory cleaning centers, and gravity separators); grain conveying and handling equipment (including various mobile belt conveyors, telescopic conveyors, grain throwers, and grain unloaders); equipment for grain intake, discharge, and leveling (such as grain reclaimers, steerable telescopic discharge machines, and hydraulic loading/leveling machines); grain sampling equipment (fixed and mobile samplers); as well as silo ventilation systems, insulated airtight doors and windows, and smart inspection hatches. We also provide grain condition monitoring systems, internal air-circulation temperature control systems, and circulation fumigation systems. Additionally, we offer grain surface walkways, insulating tarpaulins, and various machinery spare parts, while undertaking silo engineering projects such as thermal insulation and the retrofitting of old silo doors and windows; we also provide customized, integrated production lines for grain intake and discharge.
Product Application
The company's diverse range of grain machinery primarily serves granular raw materials such as corn, wheat, rice, and soybeans, supporting the entire workflow of grain storage, intake, and handling. These products are widely used in national and provincial grain reserves, processing plants, and logistics hubs. They facilitate essential in-warehouse operations - such as intake, discharge, grain transfer, sampling and testing, ventilation and fumigation, and condition monitoring - across various storage facilities, including flat warehouses and vertical silos. Additionally, the equipment is suitable for large-scale intake and storage operations, such as hydraulic tipper unloading and centralized cleaning via automated lines. The machinery handles processes including impurity removal and dedusting, conveying and transfer, grain leveling and turning, and temperature and humidity control. The company also undertakes installation projects for new facilities and upgrades for existing ones, catering to both state reserve programs and the production needs of grain and oil processing enterprises; furthermore, select equipment can be adapted for the preliminary cleaning of granular materials in other industries.
Production Equipment
The factory is equipped with comprehensive hardware for the processing of grain machinery, covering the entire workflow from sheet metal processing to final assembly and performance testing. The production line features a full suite of equipment for cutting, welding, bending, and assembly, enabling in-house fabrication of sheet metal frames and welded components, as well as complete machine assembly. A dedicated performance testing laboratory and a quality inspection department - equipped with the necessary testing instruments - facilitate the verification of incoming purchased parts, in-process spot checks, and pre-delivery testing of the complete machine (covering performance, power, and operational conditions) to validate technical specifications such as processing capacity, dust removal efficiency, and safety performance. This comprehensive production and testing infrastructure eliminates excessive reliance on external suppliers, allowing for rapid customization based on client needs while ensuring strict control over production timelines and overall product quality.
Our Certificate
ISO 9001:2015
ISO 45001:2018
ISO 14001:2015
These comprehensive qualifications demonstrate that the company meets industry standards regarding product quality, eco-friendly production, occupational safety, and business integrity; its patented technologies reflect strong independent R&D capabilities, while inspection reports ensure the performance of every unit of core equipment, providing robust qualification support for both domestic sales and international exports.
Production Market
In the domestic market, the company's products sell well across more than ten provinces, municipalities, and autonomous regions-including Beijing, Tianjin, Hebei, Henan, and Shandong - and serve over a hundred central, state, and provincial grain reserve depots. Widely utilized in central and local grain reserve projects, the products have earned the trust and recognition of numerous grain depot clients.
Beyond domestic sales, the company actively engages in import and export operations to expand its global footprint, exporting grain storage machinery to various countries and regions overseas. As a qualified supplier for Sinograin and a designated procurement partner for Wilmar International (Yihai Kerry) and COFCO Sugar, the company possesses a proven track record in undertaking large-scale, integrated production lines for grain cleaning, conveying, and storage.
By prioritizing quality and service, the company has established a firm foothold in the domestic grain machinery industry while continuously accumulating experience in foreign trade projects and expanding the market reach of domestically manufactured grain machinery equipment.
Our Service
During the pre-sales phase, we tailor technical solutions to the client's specific needs - such as on-site grain silo conditions and processing capacity - while providing expert guidance on product selection to ensure the right equipment is matched to the application.
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During the sales process, we monitor production progress in real-time and provide a complete technical package - including installation drawings and operating manuals - to ensure the project proceeds smoothly.
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We offer a one-year warranty on the entire unit; the equipment utilizes internationally standardized parts, allowing for local procurement of spares in overseas markets.
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For international projects, we primarily provide remote video-based guidance for commissioning and maintenance; should on-site service by our technicians be required, the client is responsible for associated travel expenses.
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Beyond the warranty period, we continue to provide long-term technical support - including spare parts supply and remote troubleshooting - upholding our commitment to ongoing service and lifetime warranty coverage.
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