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Tender description :
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from one source on failed purchases: machine for the selection of grain crops, laboratory, compact
Automated workplace for a breeder. 1. A table made of particle board covered with gray laminate. There is a hole in the tabletop for straw removal, and a waste chute is attached to its lower part, through which the straw goes into a container. 2. A cabinet made of gray laminate, with edges processed with a band. The cabinet consists of two drawers for storing documents and a bag for collecting chaff. The neck of the chaff bag comes out through a special hole in the cabinettabletop and is fitted onto the threshercollector. A ventilation grille is attached to the side wall of the chaff drawer, providing ventilation for the air flows created by the thresher. 3. A mobile rack for sheaves is designed for preparing breeding material. It is equipped with a special channel for waste removal and a bag for its collection. 4. A container for short-term storage of straw. Equipped with a bag for straw removal. It consists of three parts of sheet metal, two of which are side walls, and the other is the frame of the container, riveted together. It has a polymer coating. 5. A ruler designed for measuring stems, internodes, and ears from 1 to 1,500 mm, equipped with special backlighting. The scale of the ruler is protected from burrs and scratches, and has a laminate coating. 6. A mesh platform designed for visual inspection of the plant, while unnecessary plant residues pass through the mesh and fall into the container. The mesh platform is attached to the table on ball guides, allowing it to move parallel to the table at a distance of 250 mm from the ruler. During this movement, an opening is created for dropping the stem into the straw container located under the table. 7. The thresher, in order to eliminate vibration, is installed on a separate cabinet, which has a drawer for collecting threshed material with a reusable bag for chaff removal. 8. Electronic scales with a precision of no more than 0.1 g. 9. A personal computer with a flash drive and special software.
Penetrometer for soils. A device for measuring the resistance of a material to the penetration of a cone or rod, widely used in determining soil density, assessing fruit maturity, showing the hardness and consistency of a substance. Measurement range of penetration force, N 100…950 Relative measurement error of force, % ± 1.5 Range for determining penetration resistance, N/cm2 0.1...3.45 Range for determining the modulus of elasticity, MN/m2 - Range for determining soil cohesion, MPa - Range for determining the angle of internal friction of the soil, degrees - Range for determining the soil compaction coefficient - Diameter of tips, mm 12.8; 20.3 Memory of results at least 999 series Supply voltage, 3 V Current consumption, mA, no more than 25 Overall dimensions at least, mm 920x260x150 Weight, kg, no more than 3.0. The device, dismountable rod, and two conical tips (depth of tip immersion in the soil up to 0.532 m), USB communication cable with PC, software, user manual, carrying case. Overall dimensions at least, mm 920x260x150. Availability of technical passports, certificates of conformity for the products specified in the technical specification of the potential supplier.
Ultra-low-volume herbicide sprayer. The spraying width using handheld devices is either constant or smoothly adjustable. The amount of herbicide that is sprayed is regulated by a valve. The electronic monitoring system for fittings and the battery reports possible malfunctions. Spray width: 15 - 45 cm, smooth adjustment; number of nozzles: 1; exposure measurement: gravity of the flow rate controller (mixing rate or spraying system) / dosing valve; tank capacity: no more than 1,000 ml; operating time: at least 8 hours, coverage area on one battery charge: up to 5000 m², weight without working solution: at least 2.4 kg. Availability of technical passports, product compliance certificates, as specified in the technical specifications of the potential supplier.
1. The machine is equipped with a self-propelling mechanism. The cleaner is equipped with four electric motors. 2. The loading conveyor consists of an inclined scraper conveyor and two scraper feeders connected to it by hinges. 3. The receiving chamber has two vertical air ducts. A feeding device is built into the upper part of the chamber, consisting of a receiving tray, a distributing screw, a feeding valve, and a divider. 4. The air ducts are designed to clean the grain from light impurities. The ducts are connected to a fan via an air duct with a window closed by a movable damper, which regulates the airflow speed in the ducts. The airflow carries light impurities into the settling chamber, where some impurities settle, and the lightest ones enter the pneumatic conveyor. 5. The sieve machines (upper and lower) operate in parallel. Frames with sieves are inserted into the sieve machine. The machines are driven into oscillatory motion. To balance the inertial forces, the machines move in the opposite direction. A set of sieves with elongated holes 1.5–5.0 mm wide and round holes 3.6–10 mm in diameter is included with the machine. 6. The dimensions are at least: width (working/transport) 5200/2100 mm, length (working/transport) 4700/4450 mm, height (working/transport) 3270/2750 mm. 7. The speed of movement during cleaning is 3-122 m/h, set by a frequency converter. 8. The installed power is at least 9.2 kW. The weight in full equipment is no more than 1950 kg. 9. The productivity in the preliminary "commercial" cleaning mode: wheat 760 kg/m3 (nominal) – 25 tons/hour, corn – 25 tons/hour, barley – 17 tons/hour, rice – 10 tons/hour. 10. The productivity in the primary cleaning mode: wheat 760 kg/m3 (nominal) – 12.5 tons/hour, corn – 12.5 tons/hour, barley – 10 tons/hour, rice – 5 tons/hour.
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