The floating seal is made of high alloy steel, we can follow clients' requests to design all kinds of different items, and we also promise to offer the high quality products and best service to our clients.

Life time: 5000-8000hours
The working surface hardness: HRC 60-72
Roughness of abrasive surface: GB1031-68, Ra0.02- 0.032 µ M
Wide range of temperature of application: From: -50ºCto 120ºC

Item                                  D                         D1                        L
HF4420L-A                     442.0                 478.0                     42


WuHan Xinhuafeng Mechanical Manufacturing Co, . Ltd was established in 1994 which has been in operation for more than 18 years. We specialize in seals and hydraulics, with 18years of experience in the business. Our customers are geographically located all over the world, in more than 30 countries. Our main product is seal groups(floating seal), which is used in roller of large engineering machines and tracklayers.

We can supply you with good quality and high precision -products for facotory and aftermarket. Our products can be used as OEM parts of Komatsu, Sumitomo, HITACHI, Kato, Caterpillar, Deawoo, Hyundai, Kobelco, and so on.

Our products have been exported to Europe, North America, Oceanie, Southeast Asia, Africa, and they have received fairly high evaluation in many places.

We have devoted ourselves to provide our clients with products of best quality yet best service, so we are your best choice.

We are looking forward to cooperate with you for mutual benefits.