Ningbo Yinzhou Genefa Mechanical Seal Co., Ltd. is situated in eastern Ningbo, adjacent to Beilun Port in the east and the airport in the west. It enjoys a favorable geographic location with convenient transportation and logistics, which provides efficient guarantees for product R&D, production and delivery. As a national‑level high‑tech enterprise (No.: GR202533100418) and Ningbo innovative small‑ and medium‑sized enterprise, the company focuses on the R&D, production and sales of various graphite bearings, carbon‑graphite products and supporting mechanical seal parts. It has obtained ISO9001:2015 Quality Management System Certification. With stable product quality and professional services, it has long‑term provided supporting supplies for many well‑known European, American and domestic enterprises and gained wide recognition in the industry.

Core Product Series

Centered on graphite bearings, the company’s core products cover a full range of high‑performance graphite bearings to precisely meet various working‑condition requirements. Main products include: high‑temperature and high‑pressure wear‑resistant graphite bearings, corrosion‑resistant graphite bearings, custom embedded graphite bearings, high‑speed graphite bearings, graphite bearings for water pumps, graphite bearings for chemical pumps, graphite bearings for compressors, mechanical graphite bearings, antimony‑impregnated graphite bearings, and resin‑impregnated graphite bearings. They satisfy the demands for wear resistance, self‑lubrication and sealing matching in different scenarios. Both standard specifications and non‑standard customization services are available to fully cater to customers’ diverse requirements.

Core Technology Analysis

The company adheres to independent R&D and technological innovation, and builds the core competitiveness of graphite bearing products relying on a number of self‑owned patented technologies. Genefa is the exclusive domestic agent for graphene sealing materials of Germany’s Schunk brand. Meanwhile, it is the only domestic factory entrusted by Schunk’s Chinese subsidiary — SGL Carbon Technology (Suzhou) Co., Ltd. to process graphene sealing parts. Core technologies involve key equipment and processes including grinding disc flatness testers, graphite gasket sealing performance testing devices, graphite gasket processing equipment, seal‑processing lathes, gasket sealing testing devices, automatic slot‑milling devices for graphite gaskets, automatic outer‑ring cutting devices for graphite gaskets, special CNC lathe machining centers for graphite, and polishing equipment for seal production. Through precision machining, material modification, automated production and full‑process quality inspection, the dimensional accuracy and operational stability of various graphite bearings are effectively improved, service life is extended, and adaptability to harsh working conditions such as high temperature, high pressure and strong corrosion is enhanced. For different application scenarios such as water pumps, chemical pumps and compressors, the structure and material formula of graphite bearings can be optimized to deliver solid technical support for reliable operation of various equipment.

Main Application Fields

Benefiting from excellent temperature resistance, pressure resistance, corrosion resistance and self‑lubricating performance of its graphite bearings, the company’s products are widely used in many vital industries including petroleum, chemical industry, chemical fiber, printing and dyeing, general machinery, pharmacy, food, nuclear power and aerospace. They are mainly applied to equipment such as water pumps, chemical pumps and compressors. Products such as high‑speed graphite bearings, high‑temperature high‑pressure wear‑resistant graphite bearings and corrosion‑resistant graphite bearings maintain stable performance even under harsh working conditions. They help equipment in various industries run efficiently and safely and empower high‑quality industrial development.

Based on advanced production equipment, mature manufacturing technologies, scientific management modes and exquisite processing techniques, the company upholds the business philosophy of “people‑oriented, customer‑first, pioneering and innovative”, and adheres to the tenet of “high‑tech, high‑quality and premium service” to provide customers with graphite shaft