Coffee has now been mechanically harvested for over 20 years, and while there are a few different brands of machines they are all basically the same design with the same components.
Nearly all harvesters have a diesel motor, which drives a large hydraulic pump. This pump then drives the hydraulic rams and many smaller hydraulic motors all over the harvester, and they run the conveyers, shakers, cleaning fans, height adjustment, steering and wheel drives. This system of hydraulics works well because the motors are robust, weather resistant, variable in speed and can have a very high torque rating. Continue reading “Mechanical Harvesting on a Coffee Farm”