Forward heating followed by reverse heating staged temperature control

Core Product Features

• Composite Drying Process: Alternating concurrent and counter-current drying combined with multi-stage gradient tempering realizes low-temperature uniform drying. It balances drying efficiency and grain quality, effectively controlling grain cracking and breakage rates, and is highly suitable for heat-sensitive crops such as rice and corn.
• Wide Capacity Adaptability: A complete series of standardized tower models covers small, medium and large capacities, fully meeting large-batch urgent drying demands during centralized harvest seasons for both individual cooperatives and large grain depots.
• Industrial Heavy-duty Structure: The modular hot-dip galvanized steel tower with reinforced load-bearing frame features superior anti-corrosion, anti-aging and weather resistance. It supports long-term outdoor open-air operation and adapts to various harsh working conditions.
• 24-hour Fully Automatic Operation: Uninterrupted automatic feeding, drying and discharging without intermittent shutdowns solves the problem of wet grain accumulation during harvest and maximizes the effective drying time window.
• Low Loss & High-quality Drying: Gentle alternating heat exchange and tempering treatment ensure uniform and mild grain heating, retaining the original color, taste and commercial attributes of grain and improving market value.
• Complete Product Range: Standard daily processing capacity ranges from 100 tons to 1000 tons, covering small and medium cooperatives, processing plants and large grain depots. Custom super-large capacity models are available for oversized grain logistics projects.
• Intelligent Precision Control System: Equipped with a PLC intelligent control system that real-timely monitors grain moisture and automatically adjusts hot air temperature and grain discharge speed. A manual backup mode ensures simple operation and stable system operation.
• Multi-heat-source Compatibility: Compatible with biomass pellets, coal, natural gas, steam and other mainstream heat sources. Users can select appropriate heat sources according to local energy prices and environmental policies to reduce long-term operating costs.
• High-efficiency Waste Heat Recovery System: Recycles tail gas waste heat to preheat inlet air, significantly reducing unit grain drying energy consumption and delivering outstanding energy-saving effects and high operating cost performance.

  Detailed Technical Parameters

  Parameter Item	Specification Description
  Model	WGH Concurrent & Counter-current Series, mature mainstream models widely used in large and medium-sized grain depot and grain oil processing projects
  Standard Processing Capacity	100–100 tons/day, applicable to full-scale grain business entities
  Max Customized Capacity	Up to 1500 tons/day, supporting super-large grain logistics projects with reserved capacity expansion space
  Single-pass Moisture Reduction Range	4%–16%, realizing large-amplitude dehydration in a single pass with high efficiency
  Grain Moisture Handling Range	Reduces high-moisture raw grain (up to 30%) to 15% safe storage moisture, suitable for difficult-to-dry grain varieties
  Grain Breakage Rate	≤0.5%, minimal grain embryo damage to maximize grain economic value
  Applicable Heat Sources	Biomass pellets, coal, natural gas, steam and other optional heat sources
  Heat Exchange Mode	Clean hot air indirect heat exchange, completely isolating flue gas from grain to avoid secondary pollution
  Core Drying Process	Continuous alternating concurrent & counter-current composite process integrating drying, tempering and cooling
  Control Mode	PLC full-automatic control + manual emergency dual mode, easy operation and maintenance
  Tower Material	Thickened hot-dip galvanized steel, rust-proof, corrosion-resistant and weather-resistant for long outdoor service life
  Installation Method	Outdoor open-air installation without special factory buildings, greatly reducing infrastructure investment
  Appearance Color	Silver-gray industrial finish, neat and durable for grain industrial parks and grain depots
  Qualification Certification	ISO quality management system certification, agricultural machinery promotion appraisal; eligible for agricultural subsidies and import & export business
  Warranty Period	12-month full machine warranty with comprehensive after-sales support

  Application Scenarios

  This series of dryers is widely applied in national grain reserves, large and medium-sized grain & oil processing factories, large-scale farming cooperatives, port grain logistics parks and oil processing enterprises. It adapts to the drying operation of corn, rice, wheat, soybean, sorghum, millet, rapeseed and most grain and oil crops.

  Adopting clean sterile hot air heat exchange technology, the equipment completely avoids flue gas and impurity pollution to ensure qualified finished grain quality. The process parameters can be flexibly adjusted according to grain varieties, initial moisture content and drying requirements with strong adaptability. The dried grain features uniform and stable moisture, resisting heating, mildew and caking during long-term warehouse storage. It can be equipped with dust removal and tail gas purification systems to fully meet local environmental emission standards for compliant operation.

Packaging & After-sales Guarantee