ball mill grinding cylpebs

Production Process Raw Material inspection-Blanking-Burr Grinding-intermediate Freguency Furnace Heating-Straightening-QuenchingTreatment-TemperingTreatment-Inspection-Packaging. Specifications: 1)Size:Dia.40-140mm,Length3000-6000mm 2)Hardness:HRC 45-55 3)Chemical elements(%) C:0.48-0.85,Si:0.15-0.37.Mn:0.7-1.0,P:0.035MAX.S:0.035MAX

Our Grinding balls produced by advanced automatic rolling machine ( Balls from 20mm-70mm) + Labor Air Hammer ( 80mm-150mm) with special Heating treatment and strict quality control systerm , which make our grinding balls high performance Grinding media balls 'Raw Material Purchase : Strategic partnership with standard steel enterprise and sign the long term agreement (50,000 Tons annually ) Purchase directly from Chinese famous standard steel enterprise , such as laigang Group, HBIS, ANSTEEL, XIWANG Special steel . We have special department of QC teamwork .The QC department director have 10 years experience in this industry . The team is responsible for inspection during production , inspection before delivery .( Grinding balls Surface and core hardness test each day each batch and all will be recorded and filed in documents ) . Top quality and best price grinding cylpebs Specification: 1) No deformation 2) High hardness Good wear resistant 3) Size:Dia 20*30 - 50*60 4) Breakage < 1% 5) Certification: ISO9001,SGS.