Cases
Proven by measured results
Real retrofits across ceramics, magnetic materials and chemicals — every savings figure is measured at on-site acceptance. Each number represents a complete closed loop: diagnosis, retrofit, commissioning and verified acceptance.
Cumulative retrofit data
Daily-use ceramics
Catalytic Retrofit, Daily-Use Ceramic Kiln
After switching to catalytic burners, the daily-use ceramic kiln averaged 19.6% gas savings — daily gas use fell from 2,800 to 2,250 m³, saving about 200,000 m³ of natural gas a year.
High-temperature ceramics
·Yixing, Jiangsu1700℃ Kiln Retrofit, Yixing High-Temp Ceramics
On a 1700℃ high-temperature ceramic kiln, switching to catalytic burners more than doubled the heat-up rate and cut gas use by about 10%.
Strong-magnetic materials
·Jiashan, ZhejiangFiring-Kiln Savings, Jiashan Tiancheng Magnetics
On a strong-magnetic-materials kiln firing at 1260–1280℃, a catalytic retrofit delivered gas savings of over 10%.
Chemicals
·Tangshan, HebeiChemical Kiln Retrofit, Tangshan Huayi
A chemical-plant kiln received a catalytic combustion retrofit — transparent flame, complete combustion and stronger radiant heat markedly improved temperature uniformity.
Magnetic materials
·Xuzhou, JiangsuEnergy-Saving Nozzles, Xuzhou Yuanyang Magnetics
Six 320KW energy-saving burners on a 1600℃ heating kiln — on-site acceptance measured 14% savings, with stable operation and high combustion efficiency.
Track record
Measured site by site, client by client
Over two decades, Langfu retrofits span aluminium, ceramics, magnetic materials, chemicals and food. Every savings figure below is measured on-site under matched conditions, before and after — named projects carry a formal acceptance report; the rest are grouped honestly by industry.
Named projects · acceptance report on file
Gas saved
Henan daily-ceramics plant
Catalytic-combustion kiln · Report
19.6%Xuzhou Yuanyang Magnetic Materials
Magnet aging furnace · Report 2025-04
14%Jiashan Tiancheng Strong-Magnet
Magnet aging furnace
10%+Xuancheng Qiheng Refractory
Tunnel kiln · Report 2025-05
7%
By industry · measured savings
Gas saved
Aluminium extrusion / billet aging furnaces
10+ retrofits
5.3–8.4%Architectural & industrial ceramic kilns
Multiple sites
6.7–7.2%Chemical & synthetic-fibre furnaces / boilers
Multiple sites
5.3–5.8%Food & dairy steam boilers
Retrofit
5.8%EV & machinery coating / heat-treatment
Retrofit
5.6%
Roller kiln · full-line burner retrofit
Take a roller kiln burning roughly 60,000 m³ of natural gas a day — the economics of retrofitting all 500 burners:
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