Technology and Services-Changzhou Huada Kejie Optoelectronic Instruments Co., Ltd.

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About Huada

Changzhou Huada Kejie Optoelectronics Instrument Co., Ltd., established in 1992, is a high-tech enterprise in the field of opto-mechatronics. The company has long been committed to R&D and manufacturing of laser measurement and control systems and intelligent engineering control systems, continuously following international advances in optical sensing, laser measurement and control, and digital intelligent sensor technologies. It focuses on applications and services for the BIM digital construction ecosystem and solutions for industrial intelligent equipment.
Innovation
Innovation

Huada Kejie Optoelectronics Instrument Co., Ltd. always focuses on technological innovation, deeply cultivating the fields of laser measurement & control and intelligent engineering control systems, integrating optical sensing, laser measurement & control, and digital intelligent sensor technologies to provide high-precision, high-reliability solutions for global customers.
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Stay updated on Huada Kejie's latest technological innovations, market collaborations, and social responsibility initiatives, witnessing every step of our journey to empower the world with optical technology.
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While pursuing technological excellence, Huada Kejie actively fulfills its long-term commitments to the environment, employees, and society.
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The company always adheres to the talent philosophy of shared growth with employees, respecting talent, and providing a stage for employees to fully realize their potential and achieve self-value.
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Innovation

Technology Drives the Future, Service Creates Value

Technology & Services

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Digital Intelligent Manufacturing

Technology and Services

Changzhou Huada Kejie Optoelectronic Instrument Co., Ltd. is a national high-tech enterprise and a national intellectual property demonstration enterprise.

The company has consecutively received national honors including the 14th, 15th, 16th, 17th, and 18th China Patent Awards, the 10th Jiangsu Province Excellent Patent Award, the 1st Changzhou Excellent Patent Award, and the 5th Changzhou Excellent Patent Award.

In 2018, the company obtained the Intellectual Property Management System Certification. In 2019, it was recognized as a National Intellectual Property Demonstration Enterprise and passed the “Integration of Informatization and Industrialization” (Two-Integration) standard system certification in industrial and information fields.

In 2020, the company successfully passed the ISO9001:2015 certification audit by TÜV Rheinland Germany. All exported products have obtained CE, FCC, SVHC, FDA, and CB certifications. In 2021, the company was awarded the “Zhonglou District Mayor’s Quality Unit” by the People’s Government of Zhonglou District, Changzhou.

A Center Threading Positioning Device

By employing a center thread positioning device, the influence of electrical connection wires on the gravitational pendulum body is minimized, ensuring the pendulum body remains centered. This ultimately fulfills the high-precision requirements of laser leveling instruments. This center thread positioning device features ingenious design, simplified structure, cost savings, and remarkable performance, and is now widely adopted in laser leveling instruments.
A measuring tool

It provides a compact and portable measuring tool, including a small plumb line instrument and a small distance measuring instrument. Both of them can be used independently to achieve their respective functions, and they can also be combined and matched with each other. While setting up the plumb line, distance measurement can be conducted as well, achieving unexpected convenient effects.
A spectroscopic structure and a laser line-measuring instrument with such a spectroscopic structure

The spectral division structure of this invention can disperse the emitted light from the two laser tubes, thereby projecting a horizontal baseline, a vertical baseline, and four reference points. By using two laser tubes, the basic requirements for engineering surveying and mapping can be met, reducing costs, simplifying the structure and assembly process, saving the volume occupied by the frame, and facilitating the miniaturization development of the product.
A driving circuit for a laser module and a laser line projector equipped with such a driving circuit

The laser emitted by the laser device operates in a real-time pulse state and is controlled by the control circuit in the main board section, which keeps the pulse frequency within a fixed range. This invention has a simple circuit structure; it can effectively eliminate the sharp peaks in the pulse waveform generated by the photoelectric instrument and extend the service life of the circuit.

Core R&D Capabilities

Since its establishment, the company has adhered to the principle of scientific development, making technology R&D and talent cultivation the foundation of its growth. It has built a highly experienced and innovative technical R&D team, with 80% of designers holding a bachelor’s degree or higher. In product development, the company closely follows technological advancements and market demands, strengthening collaboration with domestic research institutes and professional organizations. Through technology introduction and joint development, it rapidly transforms research achievements into productive applications, generating tangible benefits for the enterprise.

Currently, based on four major product platforms, the company has developed and expanded a variety of wire laying instruments, leveling instruments, rangefinders, and receivers, fully meeting the product requirements of internationally renowned companies such as Leica. These products have received consistent praise and enjoy high recognition in the international market. At the same time, the company remains at the forefront of technological development, actively exploring measurement, infrared, and magnetic induction detection technologies, deeply integrating these technologies to build a digital and intelligent next-generation platform for laser tools, steadily advancing its innovation.

Our Services

Huada primarily focuses on the R&D, production, manufacturing, and sales of micro-laser measuring instruments, providing customers with solutions for surveying and measurement challenges.

Building on the introduction, assimilation, and adaptation of foreign technologies, Huada further pursues independent innovation through overseas study and research, developing its own core technologies and laying a solid foundation for future growth. The company holds multiple core patents and benefits from the support of an outstanding international technical team, including experts from the United States and Japan, who contribute to planning, development, design, and technical guidance.

Project Management

Huada provides the best value proposition for the surveying and construction measurement tools industry.

Huada follows principles of mutual respect, trust, and fair cooperation with global clients, establishing international, cross-continental, cross-cultural, and interdisciplinary partnerships.

Sharing a common set of values with its clients, Huada provides every partner with the best experience throughout the entire project development process.