When purchasing a rotary screen printing machine, how to evaluate registration accuracy and color paste supply for multi-color orders?

• Require registration accuracy ±0.1mm; select 640/820mm screen circumference by repeat size.
• Use VFD pumps with independent circuits per color; color change cleaning ≤15min.
• Adjust squeegee angle and magnetic rod pressure 0.2-0.5MPa by pattern.
• On acceptance, print 8-color sample; verify registration offset ≤0.15mm and paste residue ≤3%.