Hd1720 High Pressure Raymond Grinding Mill

The Hd1720 High Pressure Raymond Grinding Mill from Guilin Hengda Ming Machinery Co., Ltd. features a ring diameter of 1720 mm and roller dimensions of 510x300 mm, with a center speed of 92.5 r/min. It accepts a maximum feed size of 30 mm and delivers final product sizes between 80 and 400 mesh, achieving a capacity of 5 to 32 t/h. The unit’s overall dimensions are 12500x12250x10400 mm, with a total weight of 48 tonnes, positioning it as one of the largest grinding machines in Asia for non-metallic mineral processing.

This mill is engineered for non-metallic, non-flammable, and non-explosive minerals with moisture content below 6% and Mohs hardness under 6. The HD series design reduces roller vibration and noise while increasing production volume by 20 to 30% compared to R-type Raymond mills, thanks to optimised grind space and improved airflow resistance. A variable frequency squirrel cage classifier ensures powder accuracy between 80 and 600 mesh, with a classification efficiency of 99%, eliminating coarse particle carryover.

Industrial buyers in mining, construction, and chemical processing use this mill for large-scale powder production, particularly for materials like limestone, calcite, and barite. The machine’s high-efficiency blower and linkage pressure mechanism extend equipment life and reduce maintenance, with roller oiling intervals extended to 30 to 45 days. Confirm MOQ, packaging, and lead time directly with the supplier, as these are not specified in the listing.

Guilin Hengda Ming Machinery Co., Ltd. operates from Yongfu County, Guilin, in the Guangxi region of China. The company specialises in large-scale grinding equipment, with the HD series representing a flagship line designed to address capacity bottlenecks in non-metallic mineral processing. Its address and regional presence confirm a manufacturing base in a known industrial hub for heavy machinery.

The supplier’s profile indicates a focus on innovation in grinding technology, as evidenced by patented components like the variable frequency squirrel cage classifier. While the response rate and average response hours are not publicly listed, the trust tier classification suggests a vetted supplier. The company does not provide details on workforce size, revenue, or client roster in the available data, so these should not be assumed.