Refractory Gathering Balls for robots
Refractory Gathering Balls for robots

Refractory Gathering Balls for robots

Refractory Gathering Balls for robots

Our gathering balls are based on SiO2 refractory material. Their great purity permits to gather high quality glass gobs without any pollution inside.

The available diameters go from 45mm to 160mm with 5mm steps.

It allows to gather glass gobs from 80 Grams up to 4 Kgs.

 

CHEMICAL COMPOSITION (%)

  Typical Range
SiO2 99 98.7-99.3
Al2O3 0.4 0.2-0.6
Fe203 0.05 <0.1

 

 

PHYSICAL PROPERTIES

  Typical Range
Cold crushing strength (N/mm2) 40 35-45
Raw density (g/cm3) 1.7 1.65-1.75
Open porosity (%) 23 21-25
Thermal expansion at 1000°C (%) 0.15 <0.2
Application T° (°C) 1500