A five-head CNC machine & 2 of double spendle CNC machine will be great help in aluminum case. 

1.Increased Productivity: One of the primary advantages of a five-head CNC machine is its ability to significantly increase productivity. 

2. CNC machines are highly efficient, allowing manufacturers to complete complex machining tasks quickly and accurately.

3. These machines are versatile and can be used for a wide range of applications across various industries.

4. Reduced Lead Times and save the cost.

Over all, we can make the aluminum case quick and beauty in detail. Like 10000pcs aluminum case a day and high light edge of aluminum.