Caltta Technologies, a leader in mission and business-critical communications solution, has secured a large-scale contract with Harbin Petrochemical Company, one of the prominent leaders in China’s petrochemical industry. With a legacy spanning over 40 years and an annual crude oil processing capacity of 4.2 million tons, Harbin Petrochemical continues to drive innovation and operational excellence.

In line with the quality improvement and efficiency enhancement strategy of its parent group, Harbin Petrochemical has consistently optimized production processes and pursued ambitious strategic goals. These advancements have highlighted the need for substantial upgrades to the plant’s private network communication systems.

The existing communication system, constructed years ago, faced challenges in accommodating expanded operations. Issues such as increased communication distances, insufficient signal coverage, and static channel allocation created obstacles as the number of devices and operational groups grew. To overcome these limitations, Harbin Petrochemical embarked on a comprehensive upgrade of its explosion-proof intercom system to modernize its communication infrastructure.

Comprehensive System Upgrade

Caltta Technologies undertook the task of upgrading and renovating the plant-wide explosion-proof communication system by deploying a narrowband digital trunking system across the facility. The initiative included:

• Regrouping communication devices.

• Implementing frequency reuse to optimize channel allocation.

• Providing reliable communication support for patrol personnel, production scheduling and command, voice communication for production staff, equipment maintenance and start-up/shutdown operations, system debugging services, and emergency incident response.

The new SDR distributed base stations deliver exceptional receiving sensitivity and an extended coverage radius of over 30% compared to traditional narrowband base stations. These enhancements significantly reduce network construction and maintenance costs, providing greater value to Harbin Petrochemical.

Ensuring Safety and Reliability

In high-risk operation environments such as production and emergency rescue, safety remains a top priority. Reliable communication equipment is critical to ensuring operational safety. Caltta’s PH990Ex and PH910Ex devices are at the forefront of this innovation, having achieved China’s CCC explosion-proof certification as well as internationally recognized ATEX and IECEx certifications. These devices enable safe operation in environments with high explosion risks, including areas with flammable gases such as acetylene and hydrogen. These certifications reaffirm the devices’ reliability and their role in mitigating safety hazards caused by equipment failure.

Caltta Technologies has consistently delivered high-quality products and tailored solutions for industries including public safety, energy, transportation, and industrial operations. Recognizing the critical role of the petrochemical sector as a national pillar, Caltta focuses on user-specific needs, offering solutions with features such as explosion-proof capabilities, broadband connectivity, intelligence, and integration.

In early 2025, Caltta marked a significant milestone by receiving a procurement agreement notice from the State Energy Group. This achievement reflects the industry’s confidence in Caltta’s products and solutions. Harbin Petrochemical’s adoption of these advanced technologies underscores the company’s commitment to enhancing operational safety and efficiency, ensuring dependable private network communication for its mission-critical processes.

This strategic upgrade reinforces Harbin Petrochemical’s position as a leader in the petrochemical sector and establishes a benchmark for integrating innovative communication technologies into industrial environments.