Cornwall NNRs Charcoal Retort Kiln

Tender description

To support the sustainable management of invasive willow carr on Goss Moor NNR there is a requirement for a mobile charcoal retort kiln capable of processing low grade cut timber into a range of saleable charcoal products. The requirements for the retort are: * Capable of handling a variety of timber feedstock including; Willow, Birch, Oak, Hazel, Hawthorn, and Alder * Producing high quality lump wood charcoal and bio char. * Minimum capacity of the pyrolysis chamber: 1.5m3 * A retort type kiln with a two stage burn cycle where wood gasses produced can be burnt to complete the reaction, automated or remote warning flare off valve to control temperature is essential * Can accept feedstock of at least 0.5m length * An easy to access and load fire box which can be fuelled from a wide variety of low grade, bushy timber, especially European Gorse which is abundant on the site. * Portable on its own trailer (combination) with gross weight (retort empty) of 3.5T maximum, standard 50mm ball hitch, auto overrun brakes, security in the form of either hitch lock or wheel clamp. Towing vehicle will be a 4x4 pickup or Landrover type. * Ease of loading/ unloading to reduce manual handling effort * 1 years warranty * Declaration of conformity with any relevant legislation; environmental, health and safety etc.