Over a decade of expertise in carbon graphite seal manufacturing — quality you can trust.
Huahao Sealing Co., Ltd. is located in Huoqiu County, Lu'an City, Anhui Province. Founded in 2019, formerly Zhejiang Jiashan Xianfeng Carbon. A professional manufacturer of graphite seals and graphite bushings.
Leveraging local resource advantages, we provide high-performance, high-reliability sealing and wear-resistant solutions for industrial equipment worldwide. With mature production processes and a complete quality control system, our products feature self-lubrication, high temperature resistance, corrosion resistance, and cost-effectiveness, widely used in pumps, valves, compressors, reactors, chemical metallurgy, and mechanical seals.
We offer custom machining per drawings or samples to meet diverse operating conditions. Free sample testing is supported — let customers verify quality before bulk orders. Huahao Sealing always prioritizes quality for survival and reputation for development, looking forward to global cooperation!
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Graphite grade and impregnation selected for heat, corrosion, dry running, and submerged duty.
Precision machining for seal rings, bushings, bearings, thrust parts, and split rings.
Dimensions, tolerances, faces, appearance, and key performance points checked before shipment.
Drawings, samples, replacement models, long-term supply, and batch custom programs.
Each batch of carbon graphite raw material is tested for density, hardness and purity before production.
CNC machining centers achieve micron-level dimensional tolerances for consistent quality across every batch.
Every product undergoes strict dimensional verification, pressure testing, and surface quality assessment.
Jiashan Xianfeng Carbon formally established, focusing on carbon graphite sealing products.
Introduced high-precision lathe equipment, upgrading processing capabilities and moving toward standardized production.
Established comprehensive quality inspection system with strict control from raw materials to finished products.
Introduced advanced automatic impregnation production line, enhancing core densification process.
Strategic relocation to Lu'an, Anhui. Renamed to Huahao Sealing Co., Ltd., integrating resources for full production line.
Established dedicated R&D team, developed proprietary anti-oxidation impregnation technology for high-temperature applications.
Expanded market presence into new energy, hydraulic machinery, chemical pumps, and air compressors.
Expanded modern standardized factory, significantly increased batch delivery capacity.
Focused on high-precision graphite sealing, specializing in custom R&D for demanding operating conditions.
Common questions about products, customization, and cooperation.
We specialize in graphite bushings, graphite seals, graphite split rings and other graphite products, featuring self-lubricating wear-resistant graphite components, supporting custom machining.
Years of deep expertise in graphite products, with complete in-house production lines from raw material blending to precision machining and vacuum impregnation.
Our factory is located in Lu'an, Anhui Province, with convenient logistics for fast delivery nationwide.
Direct factory source with no middlemen. Competitive pricing with full transparency.
Resin impregnation, antimony impregnation, Babbitt metal impregnation and more, tailored to different operating conditions.
Strict control over density, flatness, and dimensional tolerances. Every product undergoes dimensional inspection, wear testing, and temperature testing before shipment.
Suitable for low, normal, and high temperatures, dry running, oil lubrication, water, and mild acid/alkali conditions. Excellent wear resistance with long service life.
Yes, we support custom sizes, special shapes, grooving, drilling, end-face grinding, etc. Both drawings and samples accepted.
Small trial batches supported as well as large-volume orders, flexibly adapted to customer needs.
Standard stock items ship same/next day. Custom orders 1-3 days. Complex parts 7-10 days. Rush orders prioritized.
Our professional technical team provides free guidance on material selection, clearance matching, process selection, and installation.
Factory direct supply, distributor cooperation, project matching, export orders, and OEM/ODM available.
Dedicated logistics or express delivery for small items, freight for large items. Customer-specified carriers accepted.
Non-artificial damage is handled per our after-sales policy with hassle-free returns and exchanges.
Sample testing is supported. Small trial samples are free, only basic shipping charges apply.
Integrated in-house raw material production + proprietary impregnation + precision machining. Lower cost, faster delivery, higher precision, and strong condition adaptability — a one-stop solution for graphite wear-resistant sealing needs.
Contact our engineering team for technical specifications, custom solutions, or competitive quotes. We'll respond within 24 hours.