... security, practical and durability.Model Wood-bar making machine ZBJ-3Size 1800 × 1750 × 1100mmPower 18. ... machine-made charcoal. Machine-made charcoal show the features of longer combustion period, higher charcoal content, higher calorific power, bigger heat conductivity ... , little ash, free from smoke, odor and poison. Biomass charcoal bar extruder machine