1. 1. Model One: Melting and Casting Type (Dual-Purpose Machine)
      
      • • Utilizes medium frequency furnace for melting, capable of casting 15kg vertical molds and 30kg flat molds.
      • • Features automatic mold release, robotic arm for fetching, and automatic post-processing (water cooling, trimming silver heads, grinding, polishing, marking), and finally palletizing.
      • • Floor space required: 15 meters in length, 10 meters in width, totaling 150 square meters.
      • • Investment: RMB 4 million in total, excluding construction costs.
      • • Capacity: 1.5-2 tons per 8 hours.
      • • Mold material: Cast iron.
      • • Mold changing method: Automatic mold change by cart.

1. 1. Model Two: Tunnel-Type Static Ingot Casting
      
      • • Silver powder goes through granulation and drying first, then automatically weighed and added to the mold. It uses tunnel-type medium frequency induction melting and casting, with cooling performed within the tunnel.
      • • The mold is removed from the furnace when its temperature drops below 400°C, followed by demolding and post-processing.
      • • Floor space required: Including granulation, ingot casting, and post-processing, it requires 20 meters in length, 20 meters in width, totaling 400 square meters.
      • • Investment: RMB 6 million in total, including granulation, ingot casting, and post-processing, excluding construction costs.
      • • Capacity: 1.0-1.5 tons per 8 hours.
      • • Mold changing method: Manual mold change.

Model Three: Alternating Left-Right Static Ingot Casting

• • Silver powder goes through granulation and drying, then automatically weighed and added to the molds in a dual-position ingot casting furnace using medium frequency induction melting.

• • Dual molds alternate between melting processes inside the furnace and are cooled via water jackets; demolding occurs when the mold temperature exceeds 400°C.

• • Post-casting water cooling and processing can be done either inside the furnace or after removal.

• • Floor space required: 24 meters in length, 10 meters in width, totaling 240 square meters (length can be adjusted based on site layout).

• • Investment: RMB 7 million in total, including granulation, ingot casting, and post-processing, excluding construction costs.

• • Capacity: 1.4 tons per 8 hours.

• • Mold changing method: Manual mold change