Cooperation Background:

As a world-famous new energy vehicle and rail transit enterprise, BYD’s new energy powertrain, cooling system and marine supporting equipment work under alternating high and low temperature, coolant erosion and complex working conditions. It needs high-precision, medium-resistant sealing products. The original suppliers cannot meet the demand of special customized seals in batches, so BYD chooses Guohao Seals for OEM and customized ODM sealing services.

1. New energy equipment requires seals with stable performance under wide temperature range, resistant to cooling liquid and electrochemical corrosion, with strict material environmental protection requirements;

2. Vehicle project iteration speed is fast, many non-standard sizes, and the verification cycle of new products is short;

3. Mass production delivery must be stable to match the rhythm of automobile assembly line, and control spare part procurement cost.

Guohao Seals Services (OEM + ODM):

1. OEM Production: Mass produce BYD-branded high-performance PTFE spring energized seals, FKM O-rings and PU sealing rings, strictly implement BYD’s material specification and durability test standards;

2. ODM Customization: Develop modified ultra-wear-resistant polymer seals and seawater corrosion resistant spring energized seals for new energy cooling and marine auxiliary equipment, solve the pain points of coolant leakage and aging failure;

3. Rapid OEM Delivery: Adjust production capacity dynamically, realize small-batch trial production and large-scale mass delivery, cooperate with BYD to complete bench test and batch acceptance.

Cooperation Achievement:

Cumulatively delivered more than 2.6 million sets of new energy sealing products, covering passenger cars, commercial vehicles and rail transit supporting projects. The sealing parts pass long-term durability tests, helping BYD reduce the leakage failure rate of cooling system by 28%, and Guohao Seals becomes BYD’s important customized sealing supplier for new energy equipment.