The new Kemper 400 Pro maize or corn header, used on John Deere forage harvesters, has been shown in initial tests to deliver improved cutting performance, especially under difficult harvesting conditions. It features high-speed saw-type rotors, stout intake drums, and a stepped, transverse feed design that helps distribute the crop evenly and reduces crop waste.
One of the key updates is the integration of sensors for better header height control and ground following. Also, improved design of gathering drums and scraper systems enhances reliability and makes maintenance easier. The 400 Pro is built to work with tall and dense maize crops, and its open architecture helps avoid blockages caused by tangled or humid crop material. Other advantages include robust materials for durability, cleaner chops due to even feeding, and design features that facilitate service access.
It’s clear this header aims to combine high throughput with cleaner forage, more consistent chops, and greater efficiency—especially in challenging fields where harvesters often struggle with plant flow, blockages, and wear.
