Company Profile

· Founded in 1998, Zhengzhou Wangu Machinery Co., Ltd. is a National High-Tech Enterprise specializing in R&D and manufacturing of grain drying, conveying, cleaning and processing equipment for over 26 years.

· Headquartered at No.113 Anyang Road, Shangjie District, Zhengzhou City, Henan Province, China, with over 50,000 m2 of modern production facilities, R&D center and comprehensive testing systems.

· Core product lines include: Recirculating Batch Dryer (5HH), Continuous Grain Dryer Tower (WGH), Rotary Drum Dryer (WGT), Steam Tube Rotary Dryer (GHG), Hot Air Furnace, Rice Mill, Flour Mill, and various conveying equipment — 19 product categories in total.

· Certified with ISO 9001 Quality Management System and CE marking. Products exported to 50+ countries across Southeast Asia, Africa, and South Asia, with 3,000+ drying and conveying systems delivered worldwide.

· Wangu holds import/export qualifications with annual export value exceeding USD 20 million. Overseas service centers in Vietnam and Nigeria provide one-stop solutions from design to installation and after-sales support.

Product Overview

The 5HH Series Small Recirculating Batch Grain Dryer is designed by Wangu Machinery for family farms, large-scale grain growers, agricultural cooperatives, and township grain stations. Unlike large continuous dryers, the 5HH operates in "batch recirculation" mode — load a full batch, circulate and dry to target moisture, discharge, then load the next batch. With 15-60 ton batch capacity (paddy equivalent) and 10-60 T/D daily capacity, it is the ideal choice for small-scale grain drying.

Core Technology: Recirculating Low-Temperature Drying. Grain enters from the top and circulates inside the machine — each cycle passes through the drying zone where 45-75C low-temperature hot air penetrates evenly, then enters the tempering zone for internal moisture migration. This "dry-temper-dry" cycle repeats until the entire batch reaches uniform target moisture. 30% more energy-efficient than fixed-bed dryers, with superior uniformity.

Why "low-temperature"? The 45-75C hot air temperature approximates natural sun-drying conditions, preserving grain quality that high-temperature drying would damage. No rice cracking, no corn fissuring, no soybean peeling, no seed germination loss — dried grain has better appearance, higher grade, and safe storage. With 8 fuel options, any region worldwide can find suitable energy: rice husk in SE Asia, biomass in Africa, natural gas in urban areas, steam for plants with boilers. One machine, universal application.

What Can 5HH Dry?

The 45-75C low-temperature hot air and recirculation process enable 5HH to gently dry a wide variety of grains and oilseeds without quality damage. Below is the complete material list with recommended drying parameters:

Core Features & Advantages

1,Grain circulates inside the machine, passing through drying+tempering cycles dozens of times. Uniformity <2%. Traditional fixed-bed only dries the hot-air layer, with >5% MC variation. 5HH dries the entire batch uniformly in one go — same 15t, 30% less fuel than fixed-bed.

2,Natural gas (urban, clean), rice husk (SE Asia, nearly free), biomass (agricultural areas, local), heat pump (smokeless, greenest), steam (plants with boiler, very low cost), coal (lowest cost, N. China), diesel (backup for no-gas areas), electricity (no fuel supply needed). One machine, 8 fuels. Africa: firewood; SE Asia: rice husk; Europe: heat pump. Works anywhere.

3,Touch screen: select grain type (rice/corn/wheat/soybean), enter target MC, press "Start." Online MC meter monitors and auto-stops at target. No experienced operator needed. Traditional dryers require manual sampling and experienced judgment. 5HH turns drying into 3 simple steps: select grain, set MC, press start. Half-day training to operate.

4,Online MC meter samples discharge moisture every second. When the entire batch reaches target MC, auto-stop. Traditional dryers rely on manual sampling — too few samples risk under-drying, too many risk over-drying. Over-dried rice loses head rice rate and market value. 5HH precision control: 0.5% accuracy. Quality guaranteed = price guaranteed.

5,Hot air is recirculated — exhaust still contains heat, recovered via heat exchanger for reuse. Traditional fixed-bed dryers exhaust hot air once, wasting energy. 5HH recirculation maximizes fuel efficiency. Drying 15t paddy, 5HH uses 30% less fuel — one season savings can buy another batch of grain.

6,12-month warranty on main unit. Free parts replacement for non-artificial damage during warranty. Lifetime technical support and parts supply after warranty. Wangu has 26 years in dryers, 2,000+ 5HH units delivered, ample parts inventory. Service centers in Vietnam and Nigeria for overseas support. Buying from Wangu is a long-term partnership, not a one-time deal.