When procuring animal feed machinery, you must prioritize production capacity (kg/h or t/h) to match your operational scale. Key components include the die hole diameter (ranging from 2mm for poultry to 8mm for cattle) and the motor power efficiency. Ensure the machine uses high-quality alloy steel for the ring die and rollers to guarantee a service life of at least 2,000-3,000 hours. Additionally, check for adjustable compression ratios to accommodate different raw materials like corn, soybean meal, or grass.