Used Gryphon Biomass Hot Air Belt Dryer Model A.318 – Gas-Fired, Automated Hemp Dryer

Manufacturer Information

Brand: Gryphon

Model: A.318

Type: Biomass Hot Air Belt Dryer

Heat Source: Gas-Fired (1.5 MMBTU natural gas burner) with supplemental electric heaters

Fan System: HPSM254 AirPro high-pressure radial shrouded fan, 600 RPM, 40 HP

Automation: Fully PLC controlled with automated washing and adjustable air volume, temperature, and cycle time

Year Built: 2019

Description
The Gryphon Biomass Hot Air Belt Dryer, Model A.318, is an industrial-grade gas-fired recirculating counter-current air dryer designed for drying biomass materials such as hemp. With a water evaporation rate of approximately 213 lbs/hr, this dryer processes 3,000 lbs of wet biomass per 24 hours and outputs around 1,000 lbs of dry product at a moisture level of 7% to 11%. The dryer section measures 18’ long by 3’ wide and is equipped with a 23.625" cleated feed belt, condenser coils, and a CTS cooling tower and condenser unit.
The unit features a 1.5 MMBTU natural gas burner with all required gas train valves, firing controls, and Honeywell fire eye safeties, along with supplemental electric heaters in each section. Airflow is powered by a 2500 SCFM blower with Allen Bradley PowerFlex 753 VFD and six PowerFlex 525 VFD drives for precise control. Full PLC automation allows for control of air volume, temperature, cycle time, and includes automated washing of the chambers, air filters, and belt.
Specifications

Water Evaporation Rate: Approx. 213 lbs/hour

Dryer Section Dimensions: 18’ L x 3’ W

Input Capacity: 3,000 lbs per 24 hours (50-80% moisture)

Output Dry Mass: Approx. 1,000 lbs per 24 hours (7% to 11% moisture)

Burner: 1.5 MMBTU natural gas burner with safety controls

Supplemental Heaters: Electric heaters in each section

Airflow: 2500 SCFM blower, AB PowerFlex 753 VFD drive

Fan: Model HPSM254 AirPro, 600 RPM, 40 HP

Feed Belt: 23.625” wide cleated belt

Blowers and VFDs: (6) PowerFlex 525 VFD drives

Cooling System: CTS cooling tower and condenser unit

Automation: Full PLC control for air volume, temperature, cycle time, automated washing

Spare Parts: (4) condenser filters, dryer belt, bed skirts, spacers

Year Built: 2019

Previously Used For: Hemp drying

Applications

Hemp biomass drying
Agricultural biomass drying (corn, alfalfa, wood chips)
Food processing (grains, spices, seeds)
Pharmaceuticals and nutraceutical powders
Industrial byproduct drying

Compatible Products & Uses

Hemp biomass
Agricultural products with high moisture content
Nutraceutical powders and plant materials
Wood biomass for pellet production
Food-grade drying applications