Polyurethane Screen Bouncing Ball Screen Self-Cleaning Ball

1. Screen Blinding Prevention (Self-Cleaning)

Purpose: Prevent particles from becoming lodged in screen mesh openings.

Application	Benefit
Mining screening	Reduces blinding, improves efficiency
Aggregate processing	Continuous operation without stops
Asphalt plant screening	Prevents fine material from sticking
Sand & gravel separation	Keeps screen clean, accurate classification

"Bouncing balls continuously strike the screen – stuck material is automatically dislodged."

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2. Improve Screening Efficiency

Purpose: Clean screens mean higher throughput and more accurate separation.

Benefit	Explanation
Increased capacity	Open mesh allows faster material passage
Accurate classification	Full effective screen area utilized
Cleaner overs/unders	Prevents contamination between fractions

"Clean screen = efficient screening."

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3. Extend Screen Life

Purpose: Reduce damage from manual cleaning methods.

Problem	Polyurethane Ball Solution
Manual hammering damages screens	Gentle elastic impact – no damage
Scraping causes mesh deformation	Uniform multi-point impact – no localized damage
Shutdowns for cleaning waste time	Continuous automatic cleaning – no stops

"Let the balls do the work – not a hammer."

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4. Reduce Noise

Purpose: Quieter operation compared to steel or hard plastic cleaners.

Comparison	Noise Level
Steel balls	Very loud
Hard plastic balls	Loud
Polyurethane balls	Quiet

"Polyurethane naturally dampens sound – quieter workplace."

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5. Prevent Material Buildup

Purpose: Stop sticky or moist materials from adhering to screen surfaces.

Application	Benefit
Wet screening	Precludes blinding from moisture
Sticky materials (clay, fines)	Continuous impact prevents buildup
High-humidity environments	Maintains open mesh

"Constant bouncing action prevents material from sticking."

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By Industry

Mining

Application	Typical Ball Diameter	Key Benefit
Coal screening	25 – 40 mm	Flame retardant option
Iron ore screening	30 – 50 mm	High wear resistance
Copper ore screening	25 – 40 mm	Impact durability
Gold ore screening	20 – 30 mm	Fine mesh cleaning

Aggregates & Quarry

Application	Typical Ball Diameter	Key Benefit
Sand screening	20 – 30 mm	Fine mesh protection
Gravel screening	30 – 50 mm	Coarse mesh cleaning
Crushed stone	25 – 40 mm	High impact strength
Limestone screening	25 – 40 mm	Wear resistance

Asphalt & Concrete

Application	Typical Ball Diameter	Key Benefit
Asphalt plant screens	25 – 40 mm	High temperature option
Concrete aggregate	25 – 40 mm	Wear resistance
Recycled asphalt	30 – 50 mm	Impact durability

Recycling

Application	Typical Ball Diameter	Key Benefit
Construction waste	30 – 50 mm	Heavy impact
Demolition debris	30 – 50 mm	Tear resistance
Plastic recycling	20 – 30 mm	Chemical resistance
Glass recycling	20 – 25 mm	Impact resistance

Chemical & Powder Processing

Application	Typical Ball Diameter	Key Benefit
Fertilizer screening	25 – 40 mm	Chemical resistance
Plastic pellets	20 – 30 mm	Non-marking
Powder coatings	15 – 25 mm	Fine mesh cleaning
Chemical powders	20 – 30 mm	Contamination-free

Food Processing

Application	Typical Ball Diameter	Key Benefit
Grain cleaning	25 – 40 mm	FDA grade option
Flour sifting	15 – 25 mm	Food contact safe
Sugar screening	20 – 30 mm	Non-contaminating
Seed cleaning	20 – 30 mm	Gentle action

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By Screen Type

Vibrating Screens

Screen Type	Typical Use	Ball Diameter
Inclined screen	General aggregate	25 – 40 mm
Horizontal screen	High-capacity mining	30 – 50 mm
Banana screen	Heavy-duty screening	25 – 40 mm
High-frequency screen	Fine material	15 – 25 mm

Specialty Screens

Screen Type	Typical Use	Ball Diameter
Dewatering screen	Wet material	25 – 40 mm
Flip-flow screen	Sticky materials	30 – 50 mm
Gyratory sifter	Powder processing	15 – 25 mm
Rotary sifter	Grain cleaning	25 – 40 mm

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By Mesh Size – Ball Diameter Selection Guide

Mesh Opening	Recommended Ball Diameter	Application Example
< 3 mm (fine)	15 – 20 mm	Powder, flour, fine sand
3 – 6 mm	20 – 25 mm	Fine aggregate, grain
6 – 12 mm	25 – 30 mm	Sand, small gravel
12 – 20 mm	30 – 40 mm	Medium gravel, coal
20 – 30 mm	40 – 50 mm	Large aggregate, rock
> 30 mm	50 mm+	Oversize material

"Finer mesh needs smaller balls. Coarser mesh needs larger balls."

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By Hardness – Application Guide

Hardness (Shore A)	Characteristics	Best Applications
80A – 85A	Softer, more impact absorption	Fine mesh, delicate screens, high-frequency screens
85A – 90A	Standard balance	General purpose – most common
90A – 93A	Harder, more wear resistance	Coarse mesh, abrasive materials, high-tonnage screening