Hanze Wetlands works with various specialised caterpillar vehicles that are suitable for operation in wetlands. Thanks to their extremely low ground pressure—on average less than 60 gr/cm2—the ground is left undamaged.
The most important caterpillar vehicles of the contracting firm are:
- The Bever: the Bever is mostly used for harvesting grass, but also for maintenance work in the wetlands, as well as for laying reed fields.
- The Retriever: the Retreiver is the most versatile caterpillar vehicle that the contracting firm has.
- The Otter: the Otter is the new biomass caterpillar vehicle with an increased production capacity (as of 2014).
- The Alligator: the Alligator is a propelled caterpillar collecting vehicle with which the material from the fields is transported
Activities of Hanze Wetlands
- Laying reed fields as constructed wetland or as production field for thatch reed. There are several techniques available and there are various variables that need to be taken into consideration (the accompanying videos and photos illustrate one of the methods).
- Harvesting cuttings with machines from existing reed fields.
- Cuttings are transported to the location where they are replanted.
- Planting is carried out with caterpillar vehicles.
- After laying the wetland, we continue to monitor the land to correct any poorer areas.
Laying reed fields as constructed wetland or as production fields for thatch reed.
There are various techniques for laying reed fields and several variables must be taken into consideration. The videos and photos illustrate one of the methods. Cuttings are harvested with machines from an existing reed field. The cuttings are transported to the location, where they are planted. The planting is carried out with caterpillar vehicles. After laying the wetland, we continue to monitor to correct any poorer areas.
This type of harvesting depends on application of the biomass. This means that harvesting thatch reed is done differently than harvesting biomass. Also, other requirements are formulated for the product. Extreme mechanisation of the harvest reduces the cost price per tons of harvested product.
The grass-mowing market is under financial pressure. Managers have increasingly less money for maintenance of the wetlands and nature reserves. This means that Hanze Wetlands collaborates on concepts for reducing the price of grass-mowing chain. With each year we manage to be more efficient and good collaboration with managers is necessary for achieving significant progress in this area.
Wetlands grow significantly. Depending on the boundaries of the wetlands, turfs might have to be removed. Hanze Wetlands Technique is developing a machine for this work.