Ground Calcium Carbonate, abbreviated as GCC, is a powder filler processed from natural minerals such as calcite, marble, limestone, dolomite, chalk and shells via professional milling equipment. Boasting outstanding advantages including excellent whiteness, easy colorability and stable chemical properties, this powder material has become a high-quality and widely used filler in industries such as rubber, plastics, papermaking and coatings, and is well-suited to the filler requirements of production across various fields.

As a commonly used basic material in multiple industrial sectors, the application performance of GCC is determined by a number of core technical indicators, which also directly affect the actual application effects of ultra-fine GCC in various scenarios.

A large-scale ground calcium carbonate (GCC) manufacturer selected Zenith grinding machines as the core powder processing equipment for its Phase I project. Leveraging the advanced performance and mature processing technology of the equipment, the enterprise achieved high-quality mass production and efficient manufacturing of GCC powder, laying a solid equipment foundation for its smooth commissioning, cost reduction and efficiency improvement.

Building on the successful cooperation in Phase I and the stable operation of the equipment, the enterprise once again chose Zenith grinding machines as the main equipment for the powder processing section of its Phase II capacity expansion project, to meet the dual development needs of business scale expansion and production technology upgrading.

Processed Material: Calcite

Equipment: Shanghai Zenith LUM Ultrafine Vertical Mill

Core Advantages of LUM Ultrafine Vertical Mill

High-Efficiency Classification, Precise Fineness Control

Equipped with a multi-rotor classifier with variable frequency speed regulation for each rotor, enabling precise fineness control in the full range of 45μm-3μm for finished products. It can produce multiple specifications of qualified powder simultaneously, with the content of 2μm fine powder in finished products up to over 65%, meeting the demand for multi-specification production.

High-Quality Grinding, Excellent Whiteness of Finished Products

The roller sleeve and liner adopt a customized grinding curve design, greatly improving grinding efficiency and the one-pass grinding yield of finished products. Based on the core principle of bed grinding, it effectively reduces impurity mixing in powder, ensuring finished products with high whiteness, high purity and superior quality.

Intelligent Pressurization, Precise and Stable Operation

Equipped with a PLC/DCS fully automatic roller pressurization control system, it enables precise regulation of grinding pressure without frequent manual intervention, ensuring high-efficiency and stable operation of the equipment with greatly improved operational convenience.

Dual Limitation, More Reliable Equipment Operation

Adopting an electronic + mechanical dual limitation protection design, it fundamentally avoids direct contact between the roller sleeve and the mill disc liner, effectively preventing severe vibration and destructive impact of the equipment and ensuring its long-term stable and efficient operation.

Intelligent Control, High Degree of Automation

Equipped with a complete automatic control system, it realizes full-process intelligent operations such as remote control and interlock protection. The equipment features high operational reliability, greatly reducing the intensity of manual operation and enabling more efficient management.

Easy Maintenance & Environmental Protection, Better Production Efficiency

The grinding roller is equipped with a hydraulic tilting device, which can be flipped out of the machine directly for maintenance, providing sufficient maintenance space and easy operation, effectively shortening downtime and reducing production losses. The equipment adopts an integral sealed design and negative pressure operation mode, with low vibration during operation and no dust leakage, complying with green production standards.

With nearly 40 years of dedication to the grinding equipment sector, Zenith takes technological innovation as its core competitiveness and quality-oriented services as the foundation of its development. Our business scope covers a full spectrum from standalone equipment to custom turnkey production line solutions, and our services extend throughout the entire lifecycle from equipment delivery to operation and maintenance. We have always adhered to the cooperative philosophy of growing hand in hand with customers.

Going forward, Zenith will continue to deepen its technological expertise and pursue sophisticated intelligent manufacturing. We will empower the development of the industry with more high-quality integrated solutions for powder processing, and work together with our partners to shape a new green and high-efficiency industrial blueprint.