When sourcing a baling machine for used clothing, you must prioritize press force (tonnage), typically ranging from 30 to 100 tons, to ensure high-density bales that optimize container space. Look for lifting-chamber designs (swivel or twin-chamber) which allow for continuous feeding and easier wrapping. Ensure the bale weight aligns with your target market requirements, usually 45kg, 55kg, or 100kg per bale. Additionally, verify the cycle time; a high-efficiency machine should complete a pressing cycle in 30 to 50 seconds.