50kg Vacuum Gold Silver Refinery Granulation System 1.8-4mm Oxide Free High Sphericity Gold Silver Granules

 Product Introduction

1. Product Overview

2. Working Principle

1. Load precious metal raw materials into the hermetically sealed melting chamber. The system evacuates ambient air and fills high-purity inert gas to fully isolate oxygen, eliminating high-temperature oxidation and metal volatilization loss for large-batch materials.
2. The 60KW high-frequency induction heating system raises the material temperature evenly to a maximum of 1500℃, with ±1℃ temperature accuracy to ensure complete melting and homogeneous alloy composition even for full-capacity feeds.
3. Fully molten metal flows through precision drip nozzles at the bottom of the crucible, forms evenly sized droplets under gravity, and drops into the closed circulating cooling water tank.
4. Droplets solidify rapidly into high-sphericity metal granules. The fully enclosed production process generates no dust, and cooling water operates in a closed loop to achieve near-zero wastewater discharge, complying with green industrial production standards.
5. Finished granules are discharged directly via the bottom valve, ready for direct use in downstream large-scale industrial production.

3. Core Features

• High-Power Large-Batch Production: 60KW heavy-duty induction heating with 50kg gold capacity, completes one full batch in 3–5 minutes, perfectly matching continuous high-volume industrial production.
• Stable Precision Temperature Control: Maximum working temperature of 1500℃ with ±1℃ control accuracy, ensures consistent melting performance for gold, silver, copper and various precious metal alloys under full-load operation.
• Premium Uniform Granule Quality: Standard granule size of 1.8–4mm with over 95% sphericity, smooth bright surface, zero oxidation and low porosity, requiring no secondary treatment and suitable for precision industrial batching.
• Vacuum Protection for Maximum Yield: Integrated professional vacuum pump as standard configuration, effectively reduces precious metal volatilization and oxidation loss, maximizing raw material utilization rate for mass production.
• Automated Reliable Operation: Intuitive integrated control panel with real-time monitoring. Simple automated operation allows workers to master procedures quickly, supporting long-time uninterrupted production.
• Full Customization Support: Full range of standard chamber capacities available; supports custom nozzle sizes, parameter adjustment, OEM private branding and custom logo printing on the machine body.

4. Technical Parameters

5. Application Fields

• Large-Scale Precious Metal Refining: Improves the efficiency of large-scale electrolytic and wet refining processes, supports standardized bulk packaging and delivery of refined pure metals.
• Scale Jewelry Manufacturing: For mass alloy proportioning, bulk jewelry scrap recycling and investment casting raw material preparation, stabilizing karat accuracy and reducing comprehensive smelting loss.
• Bulk Electroplating Material Production: Manufactures high-purity spherical anode granules in large quantities, with uniform dissolution rate to stabilize plating quality for large electroplating factories.
• Industrial Precision Solder Mass Production: Produces low-oxygen gold, silver and copper-based precision solder granules in batches for electronic components and electrical contact material manufacturers.
• Industrial New Material Scale Production: Suitable for large-batch production of precious metal catalytic materials and special alloy formula industrial trial manufacturing.

6. FAQ