Description

The 40T/ batch grain dryer machine is a high‑efficiency drying solution engineered specifically for small agricultural cooperatives, grain growers, and medium‑sized grain enterprises. With a single‑batch capacity of 40 tonnes, this machine integrates advanced technology from both domestic and international dryer designs, offering superior process innovation, a rational and robust structure, and outstanding drying quality.

This model is tailored to help cooperatives and family farms eliminate traditional sun‑drying, dramatically reduce labour intensity, and cut production costs, while ensuring safe long‑term grain storage. It is suitable for drying a wide variety of crops – corn, wheat, paddy rice, soybeans, sorghum, rapeseed, and even cereal seeds – making it a truly multi‑purpose asset that adapts to different harvest seasons and crop types.

Batch Grain Dryer Machine Working Principle

The 5HP‑40 adopts a low‑temperature recirculating drying process. Its operation follows these steps:

Feeding: Grain is conveyed to the top of the drying tower by a low‑speed, large‑bucket elevator and evenly distributed into the storage section.

Recirculating drying: Under gravity, the grain slowly passes through the drying section, where it flows between the staggered duct plates. A clean heat source, generated by an indirect‑fired hot‑air furnace, is introduced into the drying layer. Hot air exchanges heat with the grain, evaporating moisture, and a suction fan expels the humid air out of the machine. The elevator then lifts the grain back to the top for another drying cycle. This process repeats until the grain reaches the preset target moisture content.

Tempering and moisture equalisation: Between each drying pass, the grain enters a tempering section (7630 mm high) for sufficient temperature and moisture equilibration. This ensures that every kernel achieves uniform internal and external moisture.

Discharge: When the online moisture sensor detects the target moisture level, the machine automatically stops, and the dried grain is discharged via a gravity‑fed outlet.

The entire process is controlled by a fully digital system, with real‑time monitoring and precise adjustment of temperature, moisture, and other critical parameters.

Grain Dryer Machine Parameter

Grain Dryer Features

Low‑temperature, constant‑temperature, full‑coverage drying technology
The dryer uses an advanced low‑temperature and constant‑temperature process. Clean hot air is delivered through a heat exchanger to cover all grain layers without dead zones. The drying temperature is adjustable from 50 °C to 120 °C, allowing precise setting according to crop type and initial moisture content.

Low‑breakage elevator system
A low‑linear‑speed, large‑bucket elevator (capacity 40 t/h) replaces traditional screw conveyors. Coupled with a gravity‑fed material flow, this design minimises mechanical damage during conveying, significantly reducing kernel breakage.

High‑quality drying‑layer construction
The drying section (2246 mm high) consists of galvanised or stainless‑steel staggered ducts in a modular “building‑block” arrangement. A powerful induced‑draft fan (airflow 6677–15320 m³/h) ensures full contact between hot air and grain.

Intelligent fully automatic control system
The machine is equipped with an automatic monitoring system including an online moisture meter, temperature controllers, motor overload protection, and fault alarms. It also supports remote connectivity via mobile phone, tablet, or PC for parameter adjustment and real‑time data monitoring.

Grain Drying Machine Advantages

Superior grain protection
The low‑temperature, constant‑temperature process gently removes moisture, avoiding cracks, vitrification, and heat damage caused by high‑temperature rapid drying. The broken‑kernel increment after drying is ≤ 0.3%, far superior to conventional high‑temperature dryers.

Significantly higher moisture‑removal efficiency
Compared with traditional high‑temperature dryers, this model increases the moisture‑removal rate by approximately 30%. The optimised air‑duct design (large airflow and thin grain layer) enables a drying rate of 0.5–1.0 %/h, greatly shortening each batch cycle.

Extremely low re‑moistening rate for long‑term storage
Dried grain has uniform internal and external moisture; its re‑moistening rate is more than 98 % lower than that from high‑temperature dryers. The kernels remain plump, intact, and with excellent colour and odour – ideal for prolonged safe storage.

Low operating cost and wide adaptability
The machine consumes less power and fuel. It can handle corn, wheat, rice, soybeans, sorghum, rapeseed, and more, enabling cooperatives to switch between crops seamlessly and maximise equipment utilisation throughout the year.

Why To Choose Us

Tangible economic returns for cooperatives
The 40‑tonne batch capacity allows large‑volume drying in one go, eliminating the need for extensive sun‑drying yards, manual turning, and weather‑dependent delays. The investment payback period is short, and long‑term operating costs remain low.

Enhanced grain quality and market value
Low‑temperature drying preserves the grain’s natural colour, nutrients, and germination ability. With minimal breakage and no secondary contamination, the output commands a higher price both as commercial grain and as seed stock.

Freedom from post‑harvest losses
Regardless of weather conditions during harvest, the dryer ensures timely drying and safe storage. It effectively prevents mould, sprouting, and other losses, so your hard‑earned harvest truly translates into profit.

Simple operation – low skill requirement
The fully automatic system, combined with remote monitoring, enables even non‑specialists to manage a whole batch with ease. One operator is sufficient for the entire drying process, alleviating the common challenges of labour shortages and high labour costs in rural areas.

Conclusion

The 5HP‑40 batch recirculating grain dryer is a purpose‑built, high‑performance solution for small agricultural cooperatives and grain businesses. By combining low‑temperature constant‑temperature full‑coverage drying, a low‑breakage elevator, and intelligent automation, it delivers a 30 % increase in moisture‑removal efficiency and a 98 % reduction in re‑moistening rate compared to conventional high‑temperature units.

With its 40‑tonne batch capacity, multi‑crop versatility, low operating costs, and user‑friendly controls, this dryer is the ideal choice to solve drying challenges, boost profitability, and ensure safe long‑term grain storage for your cooperative.

📞 Want to learn more about the 5HP‑40 batch grain dryer?

Leave us a message online or contact us directly! Our professional technical team is ready to provide you with:

• Customised drying solutions tailored to your cooperative’s specific needs

• Detailed technical specifications and pricing

• Comprehensive support on installation, commissioning, and after‑sales service

Send us your inquiry now and get your exclusive grain‑drying solution!
We look forward to helping you protect your harvest and grow your business.