Deep Plough by Bijker bulldozer Rental of Rouveen. Here, nearly two meters deep plowed to bring out deep sand layers to improve processability the ground. Contractor Bijker bulldozer rental or Rouveen, The Netherlands seen busy with deep plowing using a Caterpillar D8H. D8E and D6R with a combined horsepower of 650 HP! The plow is self-build and goes to two meters deep. The top layer is Ploughed soil under and the lighter sand and peat soil is Brought to the surface to make the country more Suitable for other crops and easier to work on.