STONE ROLL

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STONE ROLL
  We have engaged in stone roll making for many years and got a series of advanced manufacturing technics, which is superior to other factories in stone roll field. What’s more, we’ve got high-end equipment, perfect testing methods,strict quality checking system and a full range of services.
  Our products have passed ISO 9001:2000
  The performance index of our products
  The surface of the stone roll:
  Compression strength: 200kg/cm
  Tensile strength:70kg/cm
  Rigidity: the white, grey and dark grey crystals are above HV3500
  Anti-acid ability: no change has been found after being put in 10% of H2SO4 solution and heated to 100oC
  Anti-alkali ability: no change has been found after being put in 10% of H2SO4 solution and heated to 100oC
  Water absorption: less than 0.72% when being put in the 50oC water
Compression strength (MPa)  200 MPa
Tensile strength (MPa) 70 MPa
Modulus of elasticity (E)  0.4 x 106 E
Rigidity (HV)  HV 3500

  Approved by State Light Industry Bureau of China
  Max. diameter  1500mm    Max. width 6000mm
  Diameter 1500mm x 5500 horizontal lathe finishing natural stone roller
  We research and make natural stone rolls which are super large in diameter and super wide in width which no other manufacturers in China can produce.
Digital Display Electromagnetic Resonance Heating Equipment has been used to our natural stone’s research and manufacturing technics mainly to tighten the nuts at both ends of the stone roll. We’ve combined our own technical expertise with that from Canada and Finland, so the stone rolls are stable and reliable. The stone roll line pressure can reach 200N/mm and make sure to meet the requirement of the modern, high speed, line pressure paper making machine.