Rubber sieve balls are made of natural rubber (NR), silicone (MQ), nitrile (NBR), EPDM and styrene-butadiene rubber (SBR) in three dimensions with a diameter of 30 mm, 37 mm and 47 mm. The main application of the balls is to clean the sieves from the contaminants deposited in the sieving process. Depending on the rubber base, the balls have different physicochemical parameters.

EPDM balls – minimum order quantity 500 pcs.

Name
Weight
Rubber base
Colour
Hardness  ° ShA
Characteristic
Ball with a diameter of 30 NR 18 g Natural rubber white 50 ±5 High rebound – 80% Average abrasion resistance.

Use at temperatures up to 80 ºC

 

± 1g
Ball with a diameter of 37 NR 33 g
± 1g
Ball with a diameter of 47 NR 54 g
± 1g
Ball with a diameter of 30 MQ 17 g silicon any 60 ±5 Average rebound – 50%. Low abrasion resistance.

Use at temperatures up to 250 ºC

 

 

 

 

± 1 g
Ball with a diameter of 37 MQ 31 g
± 1 g
Ball with a diameter of 47 MQ 54 g
± 1g
Ball with a diameter of 30 NBR 18 g Nitrile rubber black 65 ±5 Average rebound – 30% Average abrasion resistance. Resistant to oils

and greases.

Use at temperatures up to 100 ºC

 

 

 

± 1g
Ball with a diameter of 37 NBR 34 g
± 1g
Ball with a diameter of 47 NBR 54 g
± 1g
Ball with a diameter of 30 EPDM 16 g EPDM black 65 ±5 Low rebound. Average abrasion resistance. Ozone, acid and alkaline solutions resistant.

Use at temperatures up to 130 ºC

 

 

 

 

 ±1 g
Ball with a diameter of 37 EPDM 30 g
 ±1 g
Ball with a diameter of 47 EPDM 54 g
± 1g
Ball with a diameter of 30 SBR 16 g Styrene-butadiene rubber black 65 ±5 Average rebound – 40% High abrasion resistance. Good for sieving hard minerals.

Use at temperatures up to 120 ºC

 

 

 

 

± 1 g
Ball with a diameter of 37 SBR 30 g
± 1 g
Ball with a diameter of 47 SBR 54 g
± 1g