Silicone Balls Are Balls Made From Silicone Rubber, A Synthetic Rubber Known For Its Durability, Heat Resistance, Non-Toxicity, And Non-Irritating Properties To The Skin. Our Silicone Balls Are Made From Pure Heat-Resistant Silicone Material With No Additives. In Vibrating Screens, These Balls Play A Crucial Role In Adjusting The Falling Flow Of Raw Materials. They Bounce According To The Vibration, Effectively Covering And Opening The Holes On The Screen, Which Helps Control The Flow Of Raw Materials Within Acceptable Levels. The Minimum Operating Condition Of The Balls Is 150°C, With A Working Time Of 8 Hours Per Day And A Minimum Durability Of 6 Years.