The Glue-Free Sealing Manufacturing Process of EED Reducers

EED transmission is a renowned provider of power transmission solutions, specializing in the R&D, production, and sales of high-end reducers. Its products are sold in over 100 countries and regions worldwide. For a long time, EED transmission has pursued superior product performance and production process innovation. For example, it uses glue-free sealing technology in the input flanges and output end covers of reducers to ensure higher quality, meet stricter environmental standards, and has won wide acclaim from customers.

Why does EED insist on avoiding glue sealing in reducer production? This is not only a rigorous pursuit of quality but also a practical protection of the environment and the health of production workers, driven by the ultimate refinement of manufacturing processes. Glue-free sealing is a high-difficulty manufacturing technology.

The High Technical Threshold

First, precise machining technology is required. The contact surfaces of reducer flanges and end covers must reach IT6 precision, with a surface roughness of Ra ≤ 0.8μm, achieved through high-precision grinding machines or five-axis CNC machining centers. The processing cost is 20-30% higher than traditional processes.

Additionally, strict requirements are imposed on the precision of the sealing groove: the tolerance must be controlled within ±0.02mm, and the depth error must be ≤0.01mm, placing extremely high demands on equipment and operators' skills.

Higher requirements are also set for assembly consistency. EED has invested in intelligent assembly lines and uses automated press-fitting equipment to ensure uniform installation stress on seals, avoiding deformation caused by manual assembly.

Second, the application of glue-free sealing technology requires innovation in reducer materials and structures. High-rigidity materials must be selected to enhance flange strength and prevent sealing failure due to deformation after long-term use. Special elastic structures are adopted to compensate for part tolerances, requiring complex design and optimized stress distribution.

After producing reducers with glue-free sealing, detection technology also needs to be upgraded. EED reducers undergo 100% online testing of sealing performance before leaving the factory, replacing traditional manual glue application and visual inspection. To this end, EED has not only increased investment in detection equipment but also established a constant temperature and humidity detection environment to ensure stable and consistent sealing performance of parts across different batches.

Solving Core Customer Problems

Despite the need to significantly increase investment in technology R&D and equipment, EED still adheres to the glue-free sealing process in reducer production. The original intention behind this is to solve customers' core needs and provide them with reducers of better quality.

In developed markets such as Europe and North America, where EED's overseas customers are located, there are high requirements for the environmental compliance of reducers. Similarly, environmental standards and requirements are increasingly improving in China. These are the actual needs and pain points of customers that urgently need to be addressed.

The glue-free sealing process avoids the volatilization of harmful substances from chemical glues, complying with environmental standards such as EU RoHS and REACH. It is particularly suitable for industries with high clean production requirements, such as food, medicine, and daily chemicals, and can better meet the strict cleanliness requirements of precision equipment (e.g., semiconductors, medical machinery). It helps European customers comply with the restrictions on hazardous substances in the EU Machinery Directive (MD), avoiding market access barriers caused by non-compliant glues.

EED also enhances the maintenance convenience of reducers for customers. Traditional glue sealing requires special tools for disassembly, prone to damaging the surface of flanges or end covers. The glue-free process achieves detachable sealing through a mechanical sealing structure, enabling quick disassembly during maintenance, saving customers over 50% of maintenance time, and allowing parts to be reused. This significantly reduces maintenance costs and shortens downtime for automated production line customers (e.g., automotive manufacturing, 3C electronics), with estimates showing a 3-5% improvement in Overall Equipment Effectiveness (OEE).

The glue-free sealing technology also improves the reliability of reducers. The service life of the mechanical sealing structure far exceeds that of glue, capable of withstanding long-term vibration, temperature changes, and axial loads, reducing the risk of leakage. It is suitable for high-pressure and high-speed operation scenarios, enhancing the reducer's adaptability to extreme environments and meeting the demand for long-term reliable operation of reducers in the new energy industry (e.g., wind power, photovoltaics) under high-dust and high-humidity conditions.

Furthermore, EED reducers better meet the high-end needs and customization trends of special industry customers. For example, food machinery customers require equipment to be quickly disassembled for cleaning, and the glue-free design complies with HACCP certification requirements. Semiconductor industry customers need reducers with anti-static and anti-particle pollution properties, and the mechanical sealing structure avoids glue particles from entering clean workshops.

Differentiated Competitive Barriers

In the European market, even global leading reducer manufacturers still commonly use glue sealing. EED 's glue-free sealing has formed a technological gap and competitive barrier. It also aligns with the "green manufacturing" trend, having obtained the EU Ecodesign Directive (ErP) certification and improving the company's ESG score.

As a symbol of technological leadership, the glue-free sealing process has become a key 加分项 (plus factor) in bidding for international projects. EED reducers have successfully entered high-end niche markets (e.g., medical robots, aerospace).

Precisely because of continuous innovation in manufacturing processes, EED 's brand image has been upgraded. For EED , by reducing reliance on vulnerable parts and conveying the concept of "maintenance-free design" to customers, it has effectively enhanced brand loyalty and significantly increased customer repurchase rates.

In fields with high requirements for environmental protection and reliability, such as high-end industrial equipment, food and medicine, and new energy, the glue-free sealing design has significant advantages. Especially in the European market, the glue-free sealing manufacturing process complies with its strict compliance requirements and maintenance habits. Combined with existing ISO certifications, patent layouts, and automated production capacity, EED has become a mid-to-high-end brand with differentiated advantages.