Industrial Grade Air Suction Planting Machine

Qingdao Dashun 4-Ridge 8-Row Pneumatic Vegetable Seeder is positioned as an exclusive high-efficiency and precision seeding equipment for large-scale agricultural planting. It focuses on the intensive and refined operation needs in the fields of vegetable and Chinese medicinal material planting, mainly serving professional planting bases, agricultural cooperatives, and large-scale growers, while also meeting the high-efficiency operation needs of small and medium-sized farms and greenhouse planting. The equipment can be widely used for seeding various leafy and root vegetables such as white radish, carrot, Chinese cabbage, spinach, and coriander, as well as Chinese medicinal materials such as Atractylodes lancea, Atractylodes macrocephala, and Platycodon grandiflorus. It is suitable for various scenarios including large-scale open-field planting, refined greenhouse planting, and hilly slope planting, completely breaking the limitations of traditional seeding modes and helping growers achieve the planting goal of "cost reduction, efficiency improvement, and quality enhancement".

Qingdao Dashun Jingfeng Agricultural Machinery Co., Ltd. (hereinafter referred to as "Qingdao Dashun"), located in Dianbu Town Industrial Park, Laixi City, Qingdao, is one of the benchmark enterprises in the domestic pneumatic seeder field. It focuses on the R & D, production, and global promotion of high-end pneumatic seeding equipment. With core technological advantages, a complete production system, and high-quality service capabilities, it has established a good brand image in the industry and occupies an important share in the domestic mid-to-high-end pneumatic seeder market.

The company's core competitiveness is reflected in three dimensions: "leading technology, reliable quality, and perfect service". Technically, relying on in-depth industry-university-research cooperation and independent R & D capabilities, it has built a unique and advantageous pneumatic seeding technology system, with many core technologies obtaining national patents. In terms of quality, it has established a full-process quality control system, implementing strict testing standards in every link from raw material selection, production and processing to finished product delivery, ensuring product stability and durability. In terms of service, it has built a service network covering domestic and foreign markets, achieving rapid response and efficient solution to customer needs, with customer satisfaction remaining above 98% for a long time.After years of development, the company's product line has formed a diversified layout, covering more than 20 types of pneumatic seeders and supporting equipment, with an annual sales volume exceeding 1,000 units. The products cover many provinces and cities in China and have been successfully exported to overseas markets such as Africa and Southeast Asia. It has become an important force promoting the upgrading of domestic agricultural mechanization and assisting the development of overseas agriculture, and has won high recognition from industry authorities and customers at home and abroad.

Qingdao Dashun has always regarded technological R & D as the core strategy for enterprise development, adhering to the principle of "market demand-oriented and technological innovation-supported", and has built a complete R & D system to realize the closed-loop management of "R & D - testing - transformation - iteration". The company invests no less than 5% of its sales volume in R & D funds every year, and has set up a R & D team composed of senior industry engineers and technical experts, focusing on the optimization and upgrading of pneumatic seeding technology and the R & D of new products, and focusing on overcoming core technical difficulties such as precision seeding, multi-functional integration, and intelligent control.To enhance R & D capabilities, the company has carried out in-depth industry-university-research cooperation with Qingdao Agricultural University, jointly building R & D laboratories. Relying on the university's scientific research resources and talent advantages, it jointly carries out special research on small-grain crop seeding technology and equipment, promoting the rapid transformation of scientific research achievements into practical productivity. Up to now, the company has obtained 24 various patents, with core technologies covering intelligent negative pressure seed suction system, modular body design, digital operation monitoring system, etc. Many of these technologies are in the leading level in the industry, effectively improving the operation efficiency, precision and stability of the products.The company has established a professional R & D and testing base, equipped with complete testing equipment and experimental fields. Every new product and every new technology must go through multiple rounds of laboratory performance testing and field operation verification to ensure that the technology is mature and the performance is reliable before being launched to the market. At the same time, the R & D team continuously tracks the development trend of industry technology, and continuously optimizes product structure and upgrades core technologies in combination with the actual needs of global growers, ensuring that the products always maintain a leading edge in the industry.

With high-quality product quality, efficient operation performance, and a complete service system, Qingdao Dashun has actively expanded overseas markets. Its products have been successfully exported to many countries and regions such as Africa and Southeast Asia. Among them, customers from African countries such as Uganda and the Republic of the Congo have become core overseas partners of the company relying on long-term cooperation trust and recognition, fully demonstrating the company's competitiveness in overseas markets.Uganda and the Republic of the Congo are rich in agricultural resources, and large-scale vegetable planting is the core direction of local agricultural development. However, the local area has long relied on traditional seeding methods, which have problems such as low operation efficiency, serious seed waste, and poor planting benefits, and there is an urgent need for efficient and precise seeding equipment. Through overseas market promotion and customer word-of-mouth communication, Qingdao Dashun has become the preferred partner of customers in the two countries. Customers have repeatedly organized groups to visit the company, to verify the equipment performance, production strength, and service capabilities on the spot, and highly praised the precision and efficiency of the pneumatic vegetable seeder.

Based on the recognition of product quality, customers from Uganda and the Republic of the Congo have successively signed large purchase orders with the company, purchasing multiple pneumatic vegetable seeders for local large-scale vegetable planting bases. After the equipment was put into use, it effectively improved the local vegetable seeding efficiency and emergence quality, reduced seed waste and labor input, and greatly improved planting benefits, winning wide praise from the local government and growers. It also laid a solid foundation for the company to further expand overseas markets and enhance international brand influence. 

The machine uses a vacuum air suction system to absorb seeds evenly onto the seed plate. During operation, the seeds are released accurately into the soil at a fixed spacing. This technology greatly improves planting precision compared with traditional manual sowing or ordinary seed drills.

Main Working Process

Vacuum fan generates stable negative pressure: A high-efficiency vacuum fan, driven by the tractor's power take-off, creates a consistent and adjustable negative pressure environment within the seed metering chamber. This stable suction force ensures that seeds are uniformly attracted to the seed plate without being damaged, regardless of slight variations in tractor speed or field conditions. The pressure level can be fine-tuned for different seed sizes and shapes, providing a reliable foundation for the entire seeding process.

Seed plate absorbs seeds individually: The seed plate, featuring precision-engineered holes or pockets, rotates slowly through the seed reservoir. Under the influence of the stable negative pressure, each hole securely holds a single seed. The plate's design-tailored to specific seed types (e.g., corn, soybean, sunflower)-ensures that seeds are picked up one by one, eliminating skips or doubles. This individual absorption guarantees accurate seed spacing and population control, which is critical for optimal crop emergence and yield.

Excess seeds are removed automatically: As the seed plate rotates past the seed pickup zone, a mechanical or air-powered scraper-often called a singulator or stripper-gently but effectively removes any extra seeds that may have been loosely attached to a single hole. This automatic removal process leaves exactly one seed per hole. Any dislodged seeds fall back into the reservoir for reuse, preventing waste. This step is vital for avoiding double planting, which can lead to overcrowding and competition among seedlings.

Seeds are released accurately into the furrow: When the seed hole reaches the release point at the bottom of the metering unit, the negative pressure is cut off (often via a vent or a rotating valve), and optionally a positive pressure puff of air assists in ejection. The individual seed then drops freely down a short, guided seed tube into the open furrow created by the opener disc or hoe. The timing is precisely synchronized with ground speed, ensuring that each seed lands exactly at the targeted depth and interval within the furrow, ready for germination.

Soil covering and pressing completed simultaneously: Immediately after seed release, a paired covering device (such as angled closing wheels or drag chains) pulls loose soil back over the seed. This is followed directly by a press wheel or packer wheel that applies uniform downward pressure. The press wheel consolidates the soil around the seed, eliminating large air pockets and ensuring good seed-to-soil contact. This simultaneous covering and pressing action locks in moisture, promotes uniform germination, and helps maintain consistent planting depth across the entire field.

Qingdao Da shun has always adhered to the concept that "quality is the lifeblood of the enterprise", and has established a full-process quality control system covering production, testing, and commissioning, ensuring that each equipment can reach the best operation state after leaving the factory, and effectively protecting customer rights and interests. The company strictly controls the raw material procurement link, selects high-quality suppliers, conducts comprehensive testing on raw materials, and eliminates unqualified raw materials from entering the production link. In the production process, it implements standardized production processes, equips professional quality inspectors, and conducts real-time monitoring of each production link to ensure that product quality meets the standard.To further ensure product performance, all  pneumatic vegetable seeders must go through strict on-site field commissioning before leaving the factory.

The commissioning process strictly follows standardized specifications, divided into three core links: first, comprehensive detection of core components, carefully inspecting key components such as fans, seeding plates, gearboxes, and air circuit systems to ensure proper installation and normal performance; second, precise adjustment of operation parameters, simulating actual planting scenarios in the company's exclusive experimental field, adjusting parameters such as operation speed, seeding depth, plant spacing, and negative pressure value to ensure uniform and precise seeding of 4 ridges and 8 rows without miss-seeding or re-seeding; third, comprehensive testing of integrated functions, detecting the coordinated operation effect of functions such as rotary tillage, ridging, and drip irrigation to ensure that the overall operation performance of the equipment meets industry standards.