Parallelogram suspension of the chisel openers

All the chisel openers are suspended on parallelogram linkages. Of course this is relatively complex but ensures, in varying or changing (uphill – downhill, on the headland, under different soil consolidations, etc.) forward speeds, and in addition any soil undulations, that the desired sowing depth is being maintained. 

The highest field emergence – it all depends on the coulter

• Uniform depth placement 
• Optimum furrow clearance 
• Highest forward speeds 
• Maximum operational reliability