PRODUCTS CENTER
Professional Filtration · The Choice of Quality
Founded in 2013.
Land area
Existing product categories
Current number of employees
ABOUT JINFENG
OEM Quality · Precise Protection
Shandong Jinfeng Trading Co., Ltd. is located in Licheng District, Jinan. With fifteen years of dedicated experience in the engineering machinery parts sector, it is a modern, integrated industrial‑trade enterprise. Over the past fifteen years, we have consistently focused on the R&D and manufacturing of filtration consumables and the comprehensive supply of all categories of engineering components. Leveraging our robust end-to-end capabilities across research, production, and sales, we have established a strong presence in both domestic and international markets, seamlessly integrating independent manufacturing, inventory management, channel distribution, and import‑export trade into a complete, vertically integrated value chain.
The company operates its own production facilities and quality‑inspection laboratory. Its proprietary brand, Manzhichen, features filter elements that are entirely developed in‑house. We specialize in manufacturing air filters, oil filters, diesel fuel filters, and hydraulic oil filters tailored for excavators, loaders, and heavy‑duty trucks. From material selection and molding to final product testing, every step is rigorously controlled in‑house. We also offer custom modifications to meet specific requirements, compatible with mainstream construction equipment from SANY, XCMG, Volvo, Komatsu, Hitachi, Kobelco, Caterpillar, Isuzu, and other leading manufacturers—delivering OEM‑level filtration performance at exceptional value.
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BLOG
2026/02/11
Excavator oil filter— the core component for removing contaminants from the lubrication system.
During engine operation, the piston, crankshaft, and bearing shells experience high-speed friction, continuously generating minute metal wear particles. Meanwhile, under high-temperature conditions, the engine oil can form carbon deposits and sludge.
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2026/02/02
Excavator fuel filter, ensuring the stable operation of the electronic fuel injection system.
As emission standards for construction machinery continue to tighten, the precision of excavator fuel systems is steadily increasing. High-pressure fuel pumps and injectors feature extremely tight clearances between their precision mating components; even trace amounts of water or contaminants in the fuel can readily lead to corrosion and seizing of these delicate parts. Consequently, fuel filters—key purification components in the fuel system—are becoming ever more critical.
2026/01/23
Key Considerations for Selecting and Maintaining Excavator Air Filters in High-Dust Environments
In mining operations and open‑pit earthmoving projects, dust concentrations are high, making these environments particularly demanding on excavator air filters. As the first line of defense for engine intake, the filter media’s structure and dirt‑holding capacity directly determine the machine’s ability to maintain reliable performance under harsh conditions. Proper selection and diligent maintenance can significantly reduce the risk of engine wear.
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Address: No. 1 East, North Area, Jiayuan Stainless Steel Market, Huashan Subdistrict, Licheng District, Jinan City, Shandong Province
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