Fishmeal Special Pulverizer

Product Overview:

A specialized grinding unit designed for the specific characteristics of high-fat, high-protein fish meal raw materials. Utilizing a high-efficiency grinding process, it achieves a fineness of 100 mesh with a processing capacity of 500 kg/h. It is specifically intended for the pretreatment of ingredients such as functional aquatic feeds and shrimp/crab attractant powders, thereby enhancing the solubility and dispersibility of the feed.

Key Advantages and Selling Points:

Specialized High-Fat Pulverization: Optimized for the high oil content of fish meal, the grinding chamber structure and heat dissipation design effectively prevent clogging and screen blinding, ensuring continuous, stable operation.

Precise, Controllable Fineness: Consistently achieves a grinding fineness of 100 mesh with a concentrated particle size distribution and a screening rate of ≥95%, meeting the quality standards for ultra-fine powders in high-end aquatic feed.

Optimized Production Capacity: With a capacity of 500 kg/h and a compact design, the unit is suitable for both pilot-scale and industrial mass production, offering excellent compatibility with upstream and downstream equipment.

Low Temperature Rise, High Quality: Controlled temperature rise during grinding prevents the degradation of heat-sensitive proteins and active substances, thereby preserving the raw material's nutritional value and freshness.

Energy-Efficient, Durable, and Reliable: Features highly wear-resistant alloy blades and liners for a long service life; energy consumption is 15%–20% lower than that of conventional pulverizers, resulting in low maintenance costs.

Primary Applications:

Fine grinding of high-protein, high-fat raw materials such as fish meal and meat-and-bone meal

Processing of base materials for shrimp and crab attractant powders, starter feeds, and functional aquatic feeds

Preliminary fine grinding to improve feed solubility and dispersibility

Basic Specifications (Typical Values):

Grinding Fineness: 100 mesh (sieve pass rate ≥95%)

Processing Capacity: 500 kg/h

Main Motor Power: 18.5–22 kW

Rotor Speed: 4500–5500 r/min

Temperature Rise: ≤10°C (continuous operation)

Material: Carbon steel/Stainless steel (optional)

Solutions to specific issues:

Clogging caused by high-fat materials → Specialized anti-clogging design ensures smooth grinding without screen blinding

Insufficient grinding fineness → Precision grinding to 100 mesh significantly improves feed solubility

Nutrient loss due to high heat → Controlled temperature rise effectively preserves fish meal protein and freshness

High energy consumption and low output → Energy consumption reduced by 15–20%; a single unit meets mass production needs

Poor dispersion affecting palatability → Fine powder disperses evenly in water, allowing for fuller release of attractants

Benefits for users:

Superior Quality: Achieves target fineness for fish meal; significantly enhances feed swelling properties and palatability, thereby improving feed utilization efficiency.

Stable Production: Ensures continuous operation without sticking or clogging; reduces the frequency of shutdowns for cleaning and boosts operational uptime.

Nutrient Preservation: Low-temperature grinding retains the fish meal's natural umami flavor and bioactive compounds, resulting in superior palatability.

Cost Efficiency: Low energy consumption and long equipment lifespan reduce the cost of grinding per ton of material.

Process Upgrading: Provides high-quality powder as a foundation for downstream processes such as mixing, pelleting, and coating, elevating the overall product grade.
 

Case Reference:

A leading aquatic feed enterprise on China's eastern coast, producing shrimp and crab attractant powders and functional aquatic feeds, adopted this fishmeal special pulverizer for its raw-material pretreatment stage. The customer's previous grinding configuration struggled with high-oil fishmeal: the screen blinded within hours of operation, forcing frequent shutdowns for cleaning, and the coarse fraction that passed through fell short of the 100-mesh specification its attractant powder customers required. The pulverizer was specified with the anti-clogging grinding chamber and heat-dissipation design as the acceptance condition, together with a fineness target of 100 mesh and a sieve pass rate of ≥95%. On the customer's line, the unit is positioned ahead of the mixing stage, where the ground fishmeal feeds directly into the attractant-powder blend. In operation, the pulverizer holds 100-mesh fineness at a capacity of 500 kg/h, with the low-temperature grinding design keeping the fishmeal's umami profile and bioactive compounds intact — a point the customer verifies through palatability testing of the finished attractant. For the customer, the practical gain is a pretreatment stage that runs continuously without screen-blinding shutdowns, and a powder whose dispersion in water is consistent enough that the attractant releases evenly rather than settling or clumping.