Import Ball Mill — Buy in Bulk from Supplier in China

This ball mill is a rotating cylindrical drum mill designed for the comminution of cement clinker and raw materials to the fineness required for Portland cement production. The unit employs a two-chamber design with a drying chamber and a grinding chamber, with installed motor power typically ranging from 500 kW to 5000 kW depending on throughput requirements. The drum diameter spans 2.2 m to 4.6 m in standard industrial configurations, with length-to-diameter ratios of 2.5:1 to 3.5:1 for cement applications. Shell material is Q245R or Q345R boiler steel plate, with liner plates in high-manganese steel or chromium alloy cast iron for abrasion resistance. The grinding media loading ratio is typically 25-35% of drum volume, with steel ball diameters graded from 30 mm to 90 mm in the first chamber and 15 mm to 25 mm in the second chamber.

The mill operates on a central drive or edge drive configuration, with rotation speed at 65-75% of critical speed to optimise cascading action of the grinding media. Bearing type slideshoe or trunnion bearings support the rotating assembly, with forced lubrication systems maintaining oil film thickness under heavy load. The separator system, whether O-Sepa, TSV, or third-generation dynamic separator, classifies discharged material and returns coarse particles for regrinding, achieving Blaine fineness of 3000-5000 cm²/g for ordinary Portland cement. Feed moisture tolerance is up to 6-8% with hot gas drying from a rotary kiln or auxiliary furnace, critical for raw material grinding where clay and limestone slurries demand thermal pre-treatment.

Primary buyers include cement plant operators, lime producers, and mineral processing facilities requiring particle size reduction below 45 microns. The unit also serves ceramic tile manufacturers processing feldspar and quartz, and chemical plants grinding phosphate or barite. Sourcing from Zhengzhou Global Heavy Machinery Co., Ltd involves confirming drive configuration, liner material specification, and whether the quoted scope includes the separator and auxiliary equipment. Buyers should verify whether the supplier provides foundation drawings, installation supervision, and commissioning support, as these services vary by contract structure in Chinese equipment exports.

Zhengzhou Global Heavy Machinery Co., Ltd is located at No.216 Nanyang Road, Zhengzhou 450000, in Henan Province, a region with substantial concentration of heavy machinery manufacturing and access to steel supply chains and rail freight corridors. The supplier's tier is marked as 'imported' with a 'harbor' trust classification, though the response rate shows 0.00% with zero average response hours recorded, indicating no active inquiry engagement is documented in the available data. The company address places it within Zhengzhou's industrial zone, where numerous rotary kiln, crusher, and mill fabricators operate clusters serving domestic cement and mining sectors.

The listing does not provide information about factory size, workforce, annual output capacity, years in EPL, specific certifications held, or reference installations completed. No verifiable client list, export licence numbers, or after-sales service network is stated. Buyers should request direct verification of ISO 9001 and CE marking validity through certificate numbers traceable to accredited bodies, and should ask for reference sites where identical mill specifications have been commissioned. The supplier profile offers no detail on engineering staff specialisation, spare parts inventory, or remote diagnostic capability.