Latest Updates and Grinding Technology Sharing from Cronus Machinery

On May 18, 2026, a client from the Indian powder industry visited Cronus Machinery to conduct an on-site inspection of our ultra-fine grinding mill production base. The two parties held in-depth discussions and negotiations on equipment adaptability, production line customization solutions, and overseas project cooperation.

On May 9, 2026, the 5R4128 Raymond mill developed and manufactured by Cronus Machinery completed its factory quality inspection and was officially loaded and dispatched to Xinjiang, providing an efficient grinding solution for local non-metallic mineral powder processing projects.

Liu Yanjun of Cronus Machinery has been deeply engaged in the grinding mill industry for 42 years. Starting as a frontline fitter, he has grown into a core sales leader of the company, helping Cronus Machinery's Raymond mills, vertical roller mills, ultra-fine grinding mills and other products reach markets across the country.

Many manufacturers claim that the Integrated Sand and Powder Grinding Machine can co-produce qualified powder and finished sand. However, some users report that the sand produced is mostly mixed coarse material and cannot be used directly. This paper analyzes whether it can achieve sand-powder combined production, and provides applicable scenarios.

The working principle of a Raymond mill is not simply about crushing and grinding. This article, drawing on over 50 years of industry experience from Cronus Machinery, systematically explains the working mechanism of the Raymond mill from the aspects of system composition, process flow, and grinding principle.

Regardless of the name, the capacity and efficiency of any Raymond mill are ultimately determined by its three core systems: grinding capability, pneumatic conveying efficiency, and powder collection performance. The healthy development of the Raymond mill industry requires manufacturers to align with the real needs of the market and users.

A water slag grinding mill is a powder production equipment that grinds lump and granular blast furnace water slag into high-fineness, high-activity mineral powder. For equipment selection, the vertical mill is the preferred choice, as it is equipped with an integrated drying system featuring excellent drying performance.

Due to the high hygroscopicity, caking property, thermal melting and decomposition of mono‑ammonium phosphate , an open‑circuit grinding mill must be adopted for pulverization. Currently, the open‑circuit Raymond mill is the most technically mature and cost‑effective processing equipment in the industry.

Manganese ore has a wide hardness range, requiring strict screening and impurity removal pretreatment before grinding. For the steel metallurgy industry, where the raw ore has relatively low hardness, a Raymond mill is the preferred choice. For the battery materials industry, where the raw ore has slightly higher hardness, an ultra-fine vertical roller mill is recommended.

The Raymond mill is a high‑vibration and heavy‑load equipment. Its operational stability directly impacts the production capacity of the production line, finished product quality and service life of wearing parts. As a rigid connecting carrier between the equipment and the ground, the concrete foundation shall be constructed in strict accordance with industrial standards.

The heat treatment of the grinding roller shaft and the central shaft is a core process that determines the strength, service life, and overall operational stability of the Raymond mill. Only shafts that have undergone quenching and tempering heat treatment can meet the requirements for long-term, stable operation of the Raymond mill.

Theoretically, a Raymond mill can grind multiple materials simultaneously. However, in industrial production, mixed grinding is generally not recommended, as the output, fineness, and stability are often far inferior to grinding materials separately. That said, there are a few special cases where mixed grinding is suitable.