Demetra PPN-3.

Purpose and Design Features

Demetra PPN-3 is a professional mounted sprayer designed for the chemical protection of field crops against pests and diseases, as well as for the application of liquid mineral fertilizers and herbicides. The model is engineered for small to medium-scale farms where maneuverability and application precision on complex field contours are essential. The frame is constructed from high-strength steel with an anti-corrosion coating, ensuring long-term durability when exposed to aggressive chemical environments.

Boom System and Stabilization Mechanism

The PPN-3 features an 18-meter working width, an optimal value for this equipment class that ensures high productivity while maintaining structural rigidity. The boom is equipped with vertical folding and unfolding mechanisms. A key feature is the stabilization system, which dampens oscillations during movement over uneven terrain, preventing nozzle damage and guaranteeing uniform distribution of the preparation across the entire coverage area. The boom height is adjustable over a wide range, allowing for the treatment of both early grain sprouts and tall-stemmed crops.

Hydraulic System and Drive

The sprayer is compatible with tractors of 1.4 traction class and higher. The pump is powered via the tractor's power take-off (PTO) shaft. The PPN-3 uses a high-durability, Italian-made membrane-piston pump known for its consistent supply of working solution under required pressure. The hydraulic control system allows the operator to adjust the boom height directly from the tractor cabin, minimizing downtime during repositioning or turning.

Filtration and Dosing System

Dosing accuracy is ensured by a multi-level filtration system, consisting of a filling filter, a main suction filter, and individual filters on each nozzle. This prevents nozzle clogging and guarantees smooth operation even when using mixtures with high concentrations of active ingredients. The 3000-liter tank is manufactured from impact-resistant polyethylene that is resistant to UV radiation and pesticides. A built-in tank washing system allows for rapid cleaning of internal surfaces after changing the working composition.

Application in Agricultural Operations

The Demetra PPN-3 is effectively used for all stages of chemical protection: from pre-emergence herbicide treatment to late-season fungicidal fertilization. Due to the carefully considered nozzle arrangement, fine misting is achieved, ensuring high-quality coverage of the plant leaf surface. The machine performs exceptionally well with both soil-applied herbicides and foliar treatments, making it a versatile tool for grain, oilseed, and row crop rotations.

Maintenance and Operational Reliability

Technical maintenance of the PPN-3 is simplified through easy access to all key components, including the pump, pressure regulator, and filter elements. Standard mounting points allow for the use of parts from a wide range of manufacturers, reducing seasonal downtime. Engineering solutions are focused on minimizing human error: visual liquid level and pressure indicators allow the operator to monitor the spraying process constantly. Regular system flushing and pump membrane checks are the primary requirements for maintaining the unit's service life for decades.

Who Should Choose This Solution

This sprayer is an optimal choice for farms managing areas from 200 to 1000 hectares. The combination of reliable European components and the simplicity of the overall design makes the PPN-3 a sound investment. The unit is perfect for those seeking a balance between equipment cost and pesticide application quality, aimed at minimizing losses during chemical field processing.