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Bangladesh Calcium Carbonate Project With HGM125 Ultrafine Ring Roller Mills

Material: Limestone

Fineness: 1500mesh

Capacity: 12 t/h

Purpose: From coatings, plastics, and paper to construction, food additives, and pharmaceuticals, industries require powders of higher fineness, improved uniformity, and greater consistency to meet evolving application needs.

HGM Ultrafine Grinding Mill: Advanced Solution for Calcium Carbonate and Beyond

In today’s industrial world, the demand for ultrafine powders continues to grow rapidly. From coatings, plastics, and paper to construction, food additives, and pharmaceuticals, industries require powders of higher fineness, improved uniformity, and greater consistency to meet evolving application needs. One of the most critical raw materials in this regard is calcium carbonate (CaCO₃).

calcium carbonate powder

Calcium carbonate is widely used as a filler and functional additive in multiple industries, and its processing has become a benchmark for evaluating the performance of grinding equipment. Meeting the requirements of fineness, throughput, and energy efficiency is not only an engineering challenge but also a decisive factor for industrial competitiveness.

Recently, two sets of HGM125 ultrafine grinding mills were successfully put into operation in a large-scale calcium carbonate project in Bangladesh, providing an excellent example of how the HGM ultrafine mill is transforming powder processing industries worldwide.

Case Study: Bangladesh Calcium Carbonate Project

Project Overview

In Bangladesh, calcium carbonate is in high demand for use in the construction, plastics, paints, and coatings industries. To meet the market requirements for high-quality ultrafine CaCO₃ powders, a local company invested in a new production line.

To ensure efficiency, reliability, and cost-effectiveness, the customer selected two sets of HGM125 ultrafine mills. The equipment was installed and commissioned successfully, now serving as the core grinding technology for the project.

Objectives

  • Produce high-quality calcium carbonate powders with a D50 size of around 5–10 microns.
  • Achieve large-scale production capacity while minimizing energy consumption.
  • Ensure consistent particle distribution for use in coatings and plastic fillers.

Results

  • Stable Production: The two HGM125 units operate smoothly, providing a combined capacity of several tons per hour.
  • Improved Efficiency: Energy consumption reduced significantly compared to legacy grinding equipment.
  • Cost Savings: Lower operating and maintenance costs resulted in improved profitability for the customer.
  • Environmental Compliance: The dust collection system keeps the production site clean, aligning with Bangladesh’s environmental regulations.

This project demonstrates how HGM Ultrafine Mill can deliver a sustainable and profitable powder processing solution in rapidly developing industrial markets.

What Is the HGM Ultrafine Mill?

The HGM Ultrafine Ring Roller Mill is a high-efficiency industrial grinding machine designed for producing ultrafine powders. Unlike traditional ball mills or Raymond mills, which are limited in their ability to achieve extreme fineness, the HGM series is capable of producing powders ranging from 150 mesh to 3000 mesh (74 μm down to 5 μm).

The machine adopts a ring and roller grinding system combined with a multi-layered design, allowing materials to be ground multiple times in a single pass. This ensures not only finer output sizes but also greater uniformity in particle distribution.

Advantages of HGM Ultrafine Mill in Calcium Carbonate Processing

  1. Precise Particle Control
    • Calcium carbonate for coatings and plastics requires a narrow particle size distribution. The HGM mill achieves this with its advanced classification system.
  2. Surface Modification Potential
    • The ultrafine calcium carbonate produced by HGM can be easily surface-treated using CLG powder coating machine, enhancing compatibility with polymers in plastics and rubber industries.
  3. Reduced Production Costs
    • Energy savings and long service life of wear parts reduce the total cost of ownership.
  4. Versatile Applications
    • The same mill can handle other materials such as talc, barite, dolomite, gypsum, and kaolin, providing customers with flexibility for future expansions.

Technical Specifications of HGM125 Ultrafine Mill

  • Ring Diameter: 1250 mm
  • Number of Rollers: 40
  • Main Shaft Speed: 230–240 rpm
  • Input Size: ≤20 mm
  • Output Size: 74 μm – 5 μm (150–3000 mesh)
  • Capacity: 2–15 t/h
  • Motor Power: 185–315 kW
  • Control System: PLC automation with real-time monitoring

Applications of HGM Ultrafine Mill

  1. Calcium Carbonate (CaCO₃):
    • Paints and coatings
    • Plastics and rubber fillers
    • Papermaking industry
    • Food additives and pharmaceuticals
  2. Other Non-metallic Minerals:
    • Talc: Cosmetics, plastics, and ceramics
    • Barite: Drilling mud weighting agents
    • Gypsum: Construction materials, cement additives
    • Kaolin: Paper, ceramics, and paints
  3. Metallurgical and Chemical Uses:
    • Processing of magnesia, feldspar, quartz, and other industrial raw materials.

Why Choose HGM Ultrafine Mill?

  1. Proven Technology: Successfully applied in 50+ countries.
  2. Flexibility: Wide material compatibility and mesh adjustability.
  3. Efficiency: High output, low energy consumption.
  4. Sustainability: Dust-free, environmentally friendly design.
  5. After-Sales Support: Professional installation, training, and lifetime technical support.
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