Consists of two solid beams with the working bodies. The beams are mounted on a special frame, equipped  with transport wheels and hydraulic cylinders.

Rotary harrow 21 m trailed with replaceable teeth John Deere:

• designed for spring and autumn loosening of soil covered with stubble or other plant debris, planting weed seeds and destroying crop plants, as well as for leveling the microrelief created by the previous treatment; for spring harrowing of winter and row crops, pre-sowing tillage on plowed fields and care for perennial grasses;
• works effectively in the early stages of plant development;
• destroys a monolithic crust on soil up to 7 cm thick, especially effective for corn and sunflower in the early stages of seedlings (2-3 leaves);
• mulch the top layer and reliably covers moisture, the degree of moisture retention in the soil increases three times; especially effective in regions with arid climates or unstable precipitation;
• saturates the soil with oxygen and nitrogen;
• destroys 99% of weeds in the white filament stage;
• damages up to 1% of plants (for comparison, the tooth harrow damages 10-15%);
• with timely use, completely eliminates herbicides;
• does not injure plants up to 15 cm high;
• can be used for inter-row processing of plants up to 35 cm high (7-8 leaves), for which it is necessary to remove sections of working bodies that interfere with processing;
• can be used for continuous sowing and perennial grasses.

Advantages and design features of the 21 m Green Star rotary harrow trailed with interchangeable teeth John Deere:

• certified production of international level;
• attendants - 1 person (tractor driver);
• it is aggregated with tractors from 80 hp .;
• hydraulics warranty - 3 years;
• row spacing is adjustable from 10 cm;
• the use of rotating sun-shaped disks increases the effect on the soil up to 40%, promotes the activation of metabolic processes, which corresponds to nitrogen fertilizing with mineral fertilizers;
• the frame is made of seamless pipe 140x140x8 made of steel 09G2S;
• reinforced rack of rotary wheels is made of a single pipe 50x50x5 without welds of steel 20, the guarantee for the rack is 12,000 ha;
• bushings made of special composite material that do not require maintenance are used in friction units; the material is patented, Avers-Agro authoring, warranty for bushings - 15,000 ha;
• the sleeve on the bracket and the rocking chair (made of a special composite material and does not require lubrication), allows you to copy the relief of the soil and provides the same depth of processing;
• on each sprocket, two sealed non-serviceable bearings from SKF are additionally protected by anthers;
• bearing assembly warranty - 2000 ha;
• Green Star harrow tooth is made of quality hardened steel 30HGSA in contrast to cast tooth production;
• the tooth shape of the rotary Green Star harrow is the copyright of Avers-Agro;
• special geometry of the teeth, the tooth enters the ground at a right angle;
• the design of the working body provides a quick replacement of the tooth or the entire sprocket in the field; interchangeable teeth are individually fastened with high-strength bolts and self-locking nuts;
• an adjustable spring with a diameter of 6 to 12 mm is installed on each section, which provides the necessary deepening on all types of soil, depending on field conditions;
• availability of options for stars of various shapes for different field crops and agricultural tasks.

Additional equipment:

• turbo-cutters - allow using the harrow for crop residues (sunflower and corn) in the autumn as a chopper;
• skrebnitsa - allows you to save the sowing of row crops from the filamentous weed;
• tanks for bulk and liquid fertilizers.

Specifications: