Choosing fertilizer equipment suppliers is a decision-making process that involves multiple considerations, including production needs, equipment quality, supplier service capabilities, and long-term potential for cooperation. The following are specific selection steps and key factor analysis:

　　1、 Clarify one's own needs

　　Production scale

　　Small businesses: Choose equipment with an annual output of 10000 to 50000 tons, focusing on cost-effectiveness and flexibility (such as modular design).

　　Medium and large enterprises: For equipment with an annual output of over 100000 tons, priority should be given to suppliers with high automation and stable production capacity.

　　Fertilizer type

　　Organic fertilizer: requires equipment for fermentation, flipping, and crushing, with a focus on fermentation efficiency and environmental friendliness.

　　Compound fertilizer: requires granulation, drying, cooling and other equipment, paying attention to particle uniformity and energy consumption.

　　Raw material characteristics

　　If the moisture content of the raw material is high (such as livestock manure), it is necessary to choose equipment with strong fermentation and flipping capabilities and high dehydration efficiency.

　　2、 Supplier evaluation dimensions

　　1. Equipment quality and performance

　　Core component material: For example, the drum dryer needs to use wear-resistant stainless steel, and the granulator needs to be corrosion-resistant.

　　Technical parameters:

　　Granulator: Particle diameter error ≤ ± 0.5mm, ball forming rate ≥ 90%.

　　Drying machine: thermal efficiency ≥ 70%, water evaporation rate ≥ 1t/h.

　　Case verification: Require suppliers to provide similar customer cases and conduct on-site inspections of equipment operation effectiveness.

　　2. Supplier qualifications and experience

　　Industry certification: ISO9001 quality management system certification, CE certification, etc.

　　Establishment period: Priority should be given to suppliers that have been established for more than 10 years and have served over 500 customers.

　　Technical team: Mechanical engineers and process engineers are required to provide customized solutions.

　　3. Service capability

　　Pre sales: Provide free process design, site planning, and investment return analysis.

　　In sales: Installation and debugging cycle ≤ 30 days, operation training covers equipment operation, maintenance, and troubleshooting.

　　After sales:

　　Warranty period ≥ 1 year, lifetime maintenance.

　　Response within 48 hours, on-site within 72 hours (for domestic customers).

　　Spare parts supply: There is sufficient inventory of commonly used spare parts, and urgent orders can be shipped within 24 hours.

　　4. Price and Cost

　　Equipment price: Compare quotes from similar suppliers and be wary of low price traps (such as cutting corners).

　　Operating costs:

　　Energy consumption: The unit energy consumption of the dryer is ≤ 0.05kW · h/kg water.

　　Maintenance cost: The replacement cycle for vulnerable parts such as bearings and chains is ≥ 5000 hours.

　　5. Word of mouth and reputation

　　Customer evaluation: Collect feedback through industry forums and social media, with a focus on device stability and after-sales service response speed.

　　Legal risk: Check the enterprise credit information disclosure system to avoid cooperation with suppliers who have contract disputes or quality lawsuits.

　　3、 Selection process

　　Preliminary screening

　　Select 3-5 suppliers based on requirements and obtain product manuals and quotations.

　　on-the-spot investigation

　　Visit supplier factories to inspect production processes and quality control procedures.

　　Visit supplier case sites and communicate device usage experiences with end users.

　　Technical Exchange

　　Request suppliers to provide process flow diagrams and equipment layout diagrams to confirm the feasibility of technical solutions.

　　Business Negotiation

　　Clearly define the payment method (such as 30% advance payment+60% acceptance payment+10% warranty deposit), delivery date, and breach of contract liability.

　　Contract Signing

　　The contract terms should include equipment parameters, acceptance criteria, and after-sales service details.

　　4、 Risk avoidance suggestions

　　Avoid single source: Choose 2-3 suppliers as alternatives to reduce the risk of supply disruption.

　　Installment payment: Pay in stages according to the delivery milestones of the equipment to ensure supplier performance.

　　Acceptance testing: After the equipment arrives, conduct no-load trial operation and material trial production to confirm that the performance meets the standards.