Anhui Forges Ahead | Feidong: The Hot Secrets of a "Temperature-Control Little Giant"

In the sweltering summer heat, Anhui Huanrui Heating Manufacturing Co., Ltd. (hereinafter referred to as "Huanrui") located in Feidong County, Hefei City, presents a vibrant and bustling scene.

Inside the factory amid the roar of machinery, the "heat" does not stem from high ambient temperature, but from the fast-moving production-line heating cables.

1. High-Performance Self-Regulating Heating Cables Selected for Exhibition at Anhui Innovation Pavilion

"This is our high-performance self-regulating heating cable," said Ji Chengzhi, Founder and Chairman of Huanrui. "At the beginning of this year, we achieved mass production of products with a temperature-resistance rating of 260°C, injecting fresh momentum into our growing order book."

What is a high-performance self-regulating heating cable? Ji Chengzhi explained: "When energized, the cable generates heat. Its resistance rises along with ambient temperature, and its output power decreases automatically, so that temperature is stably maintained within the preset range."

"Ad finem anni superioris, nostri cavi calefacientes resistentes ad temperaturam 110°C applicati sunt cum successu ad unitatem electricam Fuxing CR450. Hi cavi certificant operationem fidam cisternarum aquarum, tuborum evacuationis et aliorum instrumentorum dum vehiculum in regionibus frigidissimis movetur, pericula securitatis multum minuentes," Ii Chengzhi dixit cum gloria.

Gratias agens exactae suae facultati regendae temperaturae, hic catus calefaciens se ipse regulans iam late adoptatus est in sectoribus petrochimicis, ferroviariis velocitatis altissimae, infrastructurae et aliis. Hic fungitur ut "cinctus securitatis" pro progressu industriali in praecipuis campis oeconomicis. Huanrui plus quam decem annos impendit ad superandas difficultates technicas ad hunc productum elaborandum.

2. Operarii qui machinas extrudendas tegumenti cavorum calefacientium operantur

"Ante annum 2014, materiales domestici ad calefaciendum generaliter tantum ad resistentiam ad calorem 85 °C perveniebant. Materiales centrales a suppeditatoribus externis monopolizabantur, et industria sinica trahentis calorifici electrici fere in mercatum infimum confinebatur," Ji Chengzhi recordatus est. "Nos recusavimus ut in hoc gradu maneremus et statuimus ut progressus novos faceremus."

Anno 2014, Ji Chengzhi novam missionem corporis pro Huanrui definivit: "Importationes per technologias indigenas substituere, et industrias globales per solutiones Sinicas servire." Ab eo anno, societas suas vires in investigationem et developmentum (R&D) concentravit. Per collaborationem inter industriam, universitates, et studia, aequipe innovationis industrialis "115" provinciae Anhui constituit, stationemque post-doctoralem et Centrum Studiorum Technologicorum Ingenicorum pro cavis calefacientibus auto-regulatis altissimae performance creavit.

Investigatio technologica plena est difficultatibus, sed perseverantia progressum adfert. In 2018, Huanrui made major breakthroughs in key areas including heating-material R&D, production and testing processes, and thermal-control system solution design, realizing successful domestic substitution. Its full range of heating products was upgraded, and the company transformed from mere product sales to an EPC (full-process service) model covering design, manufacturing, installation and after-sales support.

In 2023, Huanrui achieved full-scale mass production of its 200°C high-performance self-regulating products. Empowered by new products and technologies, the company broke foreign monopolies in high-end markets and won its first framework tender for heating-cable materials issued by China National Offshore Oil Corporation.

In 2025, the mass-produced high-performance self-regulating products of Huanrui achieved a temperature-resistance rating of 260°C. This means Huanrui has reached the current international advanced level in self-regulating heating-material technology.

Technology defines the voice of tech-oriented enterprises. Up to now, Huanrui has obtained 1 international invention patent and 16 domestic invention patents. It has built a digital workshop, and its testing laboratory has acquired national CNAS accreditation, enabling full-chain quality control from raw materials to finished goods.

Meanwhile, the company has obtained globally-recognized certifications including Russia EAC, EU CE, Bureau Veritas (BV) France and CSA Canada. As a representative Chinese manufacturer, Huanrui supplies premium electric heat-tracing products, services and solutions to more than 50 countries and regions worldwide, including Russia, the United Kingdom, Poland, Finland and Brazil.

    Fabrica Huanrui

Huanrui’s thriving operation mirrors Feidong County’s drive for high‑quality enterprise development. At the end of 2023, Feidong County issued "Measures to Promote High‑Quality Economic Development in Feidong County". Formulated based on local realities, the policy focuses on boosting sci‑tech‑driven enterprises. It sets concrete measures in six dimensions: encouraging scientific and technological innovation, expanding effective investment, stimulating consumption and circulation, scaling up financing support, supporting enterprises to grow larger and stronger, and optimizing the business environment.

Huanrui’s growth matches Feidong County’s goals for high‑quality economic development. Cum supportu a Bureaum Industriae et Informationis Comitatus Feidong, Huanrui obtinuit multas honores, inter quas: Enterprise ‘Parvus Gigas’ Nationalis Specialis, Refined, Differentialis et Innovativa recognita a MIIT; Enterprise Cultivationis Championis Fabricationis Provinciae Anhui; Enterprise Demonstrativa Fabricationis Orientatae ad Servitium Provinciae Anhui; et Enterprise Innovativa (Pilota) Provinciae Anhui. Praeterea, Huanrui concessae sunt qualificatio, ut Workshoppum Digitale Nivelis Provinciae Anhui, Centrum Designis Industrialibus Provinciae Anhui, Productum Industriale Altae Qualitatis Provinciae Anhui, et Certificatio Novi Producti Provinciae Anhui.

In terms of fiscal support, over the past three years, the Feidong County Bureau of Industry and Information Technology has allocated CNY 1.224 million in policy-based subsidies to Huanrui for high-quality development, among which CNY 224,000 covers loan interest discounts. These funds effectively cut financing costs and fuel corporate growth with tangible fiscal backing.

"Going forward, we will focus on key industrial layout, take leading enterprises as the driver, encourage enterprises to increase independent innovation, and promote clustered development of upstream and downstream industrial chains to lift Feidong County’s industries to new heights," stated Ye Shaofei, Deputy Director of Feidong County Bureau of Industry and Information Technology.

Secundum statisticas, in praeteritis tribus annis, Comitatus Feidong erogavit 10,58 milliones renminbi ad 66 entitates pro aedificatione centrorum technologicorum et centrorum designis industrialibus; distribuit 14,15 milliones renminbi subsidiorum pro cultu brandorum, pro evolutione entitatum SRDI, et pro investigatione atque developmento novorum productorum ad 105 entitates; et praebuit plus quam 53 milliones renminbi subsidiorum pro interestibus mutuorum ad 357 entitates.

Reproductum ex People’s Daily Online – Canal Anhui

A Ding Ji

Redactores: Guan Fei, Zhang Lei