Published: October 26, 2023

For industries requiring consistent, high-volume processing of heavy calcium carbonate and other non-metallic minerals, selecting the right milling equipment is a critical operational decision. Liming Heavy Industry Co., Ltd. emerges as a premier supplier, offering not only advanced Raymond Mill and European Type Grinding Mill solutions engineered for superior fineness and energy efficiency but also a cornerstone of true partnership: comprehensive, around-the-clock technical support. With over three decades of expertise in crushing and grinding technology, Liming Heavy Industry combines robust manufacturing capabilities with a relentless commitment to innovation and customer success, ensuring your production line achieves optimal performance and reliability from installation through daily operation.

Founded in 1987, Liming Heavy Industry has grown from a domestic machinery manufacturer into a global leader, anchored by its modern 80,000 m² headquarters in Zhengzhou's HI-TECH Industry Development Zone and an additional 67,000 m² workshop. This scale is matched by a philosophy deeply rooted in scientific research and precision manufacturing. The company's R&D strategy, focused on "scientific research tackling key problems" and the integration of "production, learning and research," fuels continuous technological advancement. This dedication ensures that their grinding mills are not merely products but evolving solutions at the industry's technological frontier.

At the heart of their offering for heavy calcium processing is the refined Raymond Mill. This stalwart of mineral grinding is engineered for materials with Mohs hardness under 7 and humidity less than 6%, making it exceptionally suited for calcium carbonate. It delivers a fineness range between 44μm and 613μm, catering to diverse application specifications from coarse fillers to finer powders. Its strength lies in its reliability and wide applicability across metallurgy, construction materials, and chemicals.

For operations demanding higher capacity, finer output, or enhanced energy efficiency, Liming Heavy Industry provides the advanced MTW European Type Grinding Mill. As a technological evolution of the traditional Raymond mill, it incorporates patented innovations that boost productivity and promote environmental sustainability. Its system—comprising the mill, separator, blower, and dust collector—forms an intelligent, closed-loop circuit. The process begins with a jaw crusher reducing large lumps, followed by precise, variable-frequency feeding into the grinding chamber. Here, materials are ground between the ring and rollers. The integrated separator ensures precise particle classification, with oversized particles recycled for regrinding and finished product efficiently collected. This sophisticated process is particularly effective for large-scale heavy calcium carbonate powder production, offering capacities up to 55 TPH.

Understanding that a machine is only as good as the support behind it, Liming Heavy Industry distinguishes itself with its unwavering 24/7 Technical Support commitment. This service is built on the premise that downtime is not an option. Their team of seasoned engineers provides immediate remote assistance for troubleshooting, operational guidance, and performance optimization. For more complex issues, they can mobilize on-site support swiftly. This support ecosystem extends from the initial planning and installation phase, where they assist with layout and system integration, through to operator training and preventive maintenance scheduling. It’s a holistic approach designed to maximize equipment lifespan and ensure seamless production continuity.

Beyond the Raymond and MTW series, Liming's extensive portfolio allows for tailored solutions. The LM Vertical Roller Mill, integrating drying, grinding, and powder selection, is ideal for higher moisture content or when higher throughput (up to 400 T/H) is required. For ultra-fine heavy calcium powders (d97 ≤ 5μm), the MW Micro Powder Mill, which incorporates advanced Swedish grinding technology, excels. For more traditional, large-volume grinding applications, a robust Ball Mill solution is also available. This range ensures that whether a customer is a large-scale industrial plant or a specialized powder producer, Liming can recommend and support the most efficient and economical grinding path.

Choosing Liming Heavy Industry as your heavy calcium Raymond mill supplier means investing in more than hardware. It is a partnership with a manufacturer whose corporate DNA is fused with innovation, precision manufacturing, and a customer-centric support model. Their machines are built on a foundation of 30+ years of R&D, and their promise of 24/7 technical support provides the confidence needed for critical mineral processing operations. In an industry where precision, reliability, and uptime are paramount, Liming delivers the technological excellence and steadfast partnership necessary to grind ahead with confidence.

Frequently Asked Questions (FAQs)

1. What is the typical fineness range achievable for heavy calcium carbonate with your Raymond Mill?
Our standard Raymond Mill can process heavy calcium carbonate to a fineness range between 44μm (325 mesh) and 613μm (30 mesh). The exact fineness can be adjusted within this range based on your specific product requirements and the configuration of the integrated classifier.

2. How does your 24/7 technical support function for international clients?
Our 24/7 support includes remote assistance via email, video call, and phone for immediate troubleshooting. We maintain a global network of service engineers who can be dispatched for on-site support when necessary. Multilingual technical documentation and operational manuals are also provided.

3. What are the main advantages of the MTW European Type Grinding Mill over a traditional Raymond mill for calcium carbonate?
The MTW mill offers several key upgrades: higher capacity (up to 55 TPH), greater grinding efficiency leading to lower energy consumption per ton, a more advanced curved blade design for better airflow and classification, and an overall more environmentally friendly design with efficient pulse dust collection systems.

4. Can your equipment handle materials with moisture content above 6%?
While our standard Raymond Mill is optimal for materials with less than 6% humidity, we recommend our LM Vertical Roller Mill for materials with higher moisture content. It integrates a drying function within the grinding chamber, using hot air from a dedicated hot air furnace to dry and grind simultaneously.

5. What kind of training do you provide for our operational staff?
We provide comprehensive training covering safe operation, routine maintenance, basic troubleshooting, and optimal performance adjustment of the equipment. This training can be conducted at our facility, on-site at your plant during installation and commissioning, or through structured virtual sessions.