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Hotman, founded in 2003, has established itself as a key player in China’s grinding machine industry. With a strong focus on research and development, the company has built a comprehensive product portfolio comprising nearly 100 models across 12 grinding categories.

In 2018, Hotman and NUM initiated their collaboration, which deepened during the trade fair DMP Shenzhen 2021, when Hotman was searching for an advanced CNC solution for non-circular vertical grinding applications. Their key requirement was not just a powerful CNC control system, but a complete solution that seamlessly integrated both CNC hardware and specialized grinding software.

NUM’s Flexium+ CNC system and NUMgrind software emerged as the perfect fit for Hotman’s needs, offering a highly efficient, reliable, and flexible platform to develop their new Z850 vertical NCG grinding machine.

Introducing the Z850 Vertical NCG Grinding Machine

The Z850 vertical grinding machine represents a breakthrough in precision grinding technology, allowing manufacturers to achieve high levels of accuracy, consistency, and productivity. This machine is specifically designed for non-circular grinding applications, making it ideal for complex workpieces that require precise shaping.

Key Features of the Z850 Grinding Machine:

• Vertical grinding configuration – ensures optimal stability and precision
• 6-station grinding wheel magazine – enables multiple grinding operations in one setup
• Capability to grind OD and ID cylindrical (including cones) as well as non-circular parts
• Direct drive motor for precise rotary table control – enhances accuracy and surface finish
• In-process measurement system – ensures real-time quality control, including automated calibration

NUM’s CNC Technology: Precision, Efficiency, and Customization

The Z850 is powered by NUM’s Flexium+ CNC system, which provides:

• High-performance motion control for ultra-precise grinding operations
• NUMgrind software, which simplifies the programming of complex grinding tasks
• Customizable grinding cycles to meet specific customer requirements
• Seamless integration with automation solutions, increasing overall productivity
• NUM Technology Implemented in the Z850:
  • Flexium 68+ CNC control system
  • High-performance servo drives and motors
  • Custom-developed online measurement and calibration features

By leveraging these advanced CNC solutions, Hotman was able to reduce its software development costs, accelerate the time-to-market, and enhance the overall performance of its machines.

Fast and Efficient Implementation: A Game-Changer for Hotman

One of the most impressive aspects of this collaboration was the rapid implementation timeline. The entire system was developed, tested, and commissioned within just two months – an exceptional achievement that allowed Hotman to launch its new vertical NCG grinding machine series faster than ever before.

Key Benefits Achieved:

• Accelerated time-to-market – fast commissioning enabled a competitive market launch
• Improved efficiency – optimized software and automation reduce production time
• Exceptional stability and accuracy – NUM’s technology ensures consistent high-precision grinding
• Seamless machine operation – NUMgrind software makes programming complex shapes easy
• Customized features – adapted solutions for specific customer needs

Customer Feedback: NUMgrind Software Transforms Hotman’s Production Process

The Chairman of Hotman, Mr. Zeng highlighted the advantages of working with NUM:

“NUMgrind software has significantly improved our ability to manufacture a wide range of complex workpieces. The software makes it much easier for operators to create programs, even for intricate shapes. The import cross-section profile function is particularly useful for producing challenging components such as camshafts and eccentric workpieces.”

The ability to quickly and efficiently program different workpieces has expanded Hotman’s market potential and strengthened its position as an industry leader.

A Bright Future: Strengthening the NUM-Hotman Collaboration

The success of this project has paved the way for a stronger partnership between Hotman and NUM. With NUM’s cutting-edge technology and Hotman’s expertise in precision grinding, both companies are well-positioned to drive further innovation and market growth.

As Hotman continues to expand its product portfolio and global reach, NUM remains a trusted technology partner, providing the advanced solutions needed to stay ahead in the competitive grinding machine industry.