Ballast Stone Crushingballast Stone Crushing Machine. Ballast Stone Crushingballast Stone Crushing Machine. Avoid operating the grinder when the bowl does not contain the coffee beans as this will make the blade spin rapidly and cause damage to the motor to avoid overheating of the grinders motor dont grind for longer than 30 seconds at a time avoid immersing the electric coffee grinder in water because this will ruin the motor of the machine.Send Message Get Price
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Zhengzhou High-tech Zone, China