G3020512D Sanitary Food Grade Filling Buckets

Introduction

This SUS304 food-grade filling hopper is specifically engineered for hygienic food processing and automated filling equipment applications requiring superior surface finish, structural integrity, and long-term corrosion resistance.

Manufactured using high-pressure die forging combined with precision metal spinning technology, the component achieves optimized grain flow orientation and eliminates structural defects commonly found in conventional stamped stainless steel parts, including stress concentration caused by flow lines and layered tearing risks.

The hopper features a large-radius fully rolled safety edge with dead-angle-free geometry to improve cleanability and material flow performance. The inner surface undergoes food-grade electrolytic polishing to achieve a mirror-finish roughness of Ra ≤ 0.4μm, ensuring non-stick performance, easy cleaning, and compliance with hygienic processing requirements.

Critical dimensional profiles are verified through coordinate measuring machine (CMM) reverse scanning to ensure consistency with approved reference samples and maintain dimensional fluctuation within ±0.2mm.

Core Metal Spinning Process

High-Pressure Die Forging & Precision Metal Spinning Technology

The component is manufactured under strict die forging process requirements, utilizing high-pressure forming technology to induce controlled plastic flow of SUS304 stainless steel within precision tooling cavities.

Compared with conventional stamping processes, this forming method significantly improves structural reliability by eliminating:

• Flow-line stress concentration
• Layered tearing risks
• Uneven grain orientation
• Localized thinning defects

The process integrates:

• Precision die forging
• Controlled metal spinning sequences
• High-pressure material flow control
• Grain flow optimization
• Large-radius rolled edge forming
• Hygienic dead-angle-free structural design

The resulting component achieves superior structural integrity, stable wall distribution, and enhanced durability for food-grade processing environments.

Precision Machining & Tolerance Control

CMM Reverse Inspection for Sample-Level Accuracy

The production process strictly follows the approved reference sample standard agreed upon by both parties.

Critical surface profiles and dimensional features are inspected using coordinate measuring machine (CMM) reverse scanning technology to ensure high consistency between production parts and validated samples.

Precision control capability includes:

• Dimensional fluctuation within ±0.2mm
• Real-time profile verification
• Reverse engineering surface comparison
• Stable forming repeatability
• Accurate rolled-edge geometry control

This inspection methodology ensures reliable assembly compatibility and stable production quality for food equipment applications.

Surface Treatment

Food-Grade Electrolytic Polishing & Mirror Surface Finishing

To meet hygienic food-processing requirements, the inner surface undergoes strict surface roughness control and food-grade electrolytic polishing treatment.

Surface finishing procedures include:

• Food-grade electropolishing
• Mirror surface enhancement
• Burr and micro-defect elimination
• Surface contamination control
• Hygienic finishing inspection

Final surface characteristics:

• Surface Roughness: Ra ≤ 0.4μm
• Mirror-bright reflective finish
• Non-stick surface performance
• Easy-clean structure
• No dead corners or residue retention zones

The optimized surface quality improves sanitation performance and reduces material adhesion during food processing operations.

Material Capability

SUS304 Food-Grade Stainless Steel

The hopper is manufactured from strictly controlled SUS304 food-grade stainless steel with nickel content maintained between 8% and 10.5% to ensure long-term corrosion resistance and hygienic reliability.

Material characteristics include:

• Excellent resistance to acidic and alkaline cleaning agents
• Stable corrosion resistance in food-processing environments
• Good formability for deep spinning applications
• Hygienic food-contact compatibility
• High durability under repeated cleaning cycles

The optimized forming and finishing process fully preserves the corrosion-resistant properties and surface stability of SUS304 stainless steel.

Technical Specifications

Related Case

• 👉 Food-Grade Stainless Steel Hopper

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