HOME > News > Industry News > Key points and prices for Selecting a loss-in-weight scale for macronutrient water-soluble fertilize Update time : 2025-06-12 Publisher:Zhengzhou Hanke Machinery
When choosing a weight loss scale for water-soluble fertilizers of macronutrients, the core is to solve the problems of high-precision batching, anti-corrosion and moisture-proof material blockage. We'll explain the key points of selection and price to you in the most straightforward language to avoid falling into traps!
I. Why is the loss-in-weight scale suitable for water-soluble fertilizers of macronutrients?
✅ High precision (error ±0.1% to 0.3%), suitable for precise proportioning of N, P, K and other elements
✅ Moisture-proof and clog-proof (closed design to reduce moisture absorption and caking of water-soluble fertilizer)
✅ Continuous production (no downtime required, suitable for automated assembly lines)
Ii. Key Points for Purchasing a weight loss Scale for Macronutrient water-soluble Fertilizers
Anti-corrosion design (core!)"
Scale body material: 304/316 stainless steel must be selected (ordinary carbon steel will be corroded and rusted by fertilizers)
Sensor protection: IP65 or above waterproof and dustproof (Water-soluble fertilizers are prone to deliquescence and corrosion of circuits)
Feeding mechanism
Screw feeding (suitable for powder and granular water-soluble fertilizers) → Select the one with variable frequency speed regulation
Vibrating feeding (suitable for viscous materials) → Select the one with adjustable amplitude

2. Precision requirements
Basic type: ±0.3% - 0.5% (Suitable for ordinary water-soluble fertilizer)
High-precision type: ±0.1% - 0.2% (suitable for high-end special fertilizers and trace element addition)
3. Capacity matching
Small output (1 to 5 tons per hour) → Single-bucket loss-in-weight scale (30,000 to 80,000)
High output (5 to 20 tons per hour) → multi-bucket parallel weightlessness system (100,000 to 300,000)
4. Degree of automation
Semi-automatic: Manual feeding, suitable for small factories (cheap, but inefficient)
Fully automatic: Equipped with an automatic feeding machine and PLC control, it is suitable for continuous production (expensive but labor-saving)
Iii. Price Reference for Weight Loss Scale of Macronutrient Water-Soluble Fertilizer (Domestic vs. Imported)
Type | Domestic price | Import Price | Suitable scenarios
Single Bucket weightlessness Scale (Basic model) | 30,000-80,000 | 100,000-200,000 | Small factories, test lines
Multi-bucket weightlessness system (fully automatic) | 80,000 to 200,000 | 200,000 to 500,000 +| Large-scale fertilizer plants
High-precision explosion-proof model | 100,000-150,000 | 300,000-600,000 | Special fertilizer, trace element ingredients
Iv. Guide to Avoiding Pitfalls in Weight Loss Scales for Macronutrient Water-Soluble Fertilizers
1. Don't cut corners on material costs: Water-soluble fertilizers are highly corrosive and must be made of stainless steel!
2. Test the machine before purchasing: Send samples for testing to see if there is any material sticking or blocking
3. After-sales service should be included in the contract: The production environment of fertilizers is harsh, and the warranty period is at least two years
Summary
Ordinary water-soluble fertilizer factory → Choose domestic single-bucket loss-in-weight scale (50,000-100,000), 304 stainless steel + variable frequency screw
High-end specialty fertilizer factory → Directly import high-precision models (200,000 +), avoiding frequent maintenance
Moisture-proofing is the key! Give priority to the closed design and the automatic arch breaking device
If you choose according to this, you basically won't fall into a trap! If you need specific model recommendations, please tell me your production volume and budget, and I will help you refine the plan.

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