SIMA 2022: Lemken precision comb harrow prototype

There are eight rows of tines, which are mounted front and rear of the four row frame for better visibility. The 8mm diameter tines have a line spacing of 31.25mm. The central accumulator by the headstock is plumbed into several valve blocks that then control the individual pistons connected to each tine by a control rod. The pressure is shown on a large dial at the headstock.The tines are auto-retracted using the pressure pistons when the machine is folded for transport to reduce the on-road width. There are also plans for 6.0m and 12m versions. There are 10 pre-series units planned for next season before it goes on sale in 2024. Carbide tine tips will be an option with other extra including a rear wheel kit and a small seeder.The engineers are working on ways of keeping certain tines out of work when weeding beds.