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Zhongxing Hydraulic YOX750 and DXA750: A Precise Selection Guide for Torque-limiting Hydraulic Couplers

Release time:

2025-12-01 12:48

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Zhongxing

In the design and operation & maintenance of industrial equipment drive systems, are you often held back by these challenges?
Is the motor subject to severe impact at startup, accelerating wear on critical equipment components and keeping annual maintenance costs stubbornly high?
Frequent load fluctuations pose a hidden risk of overload; once an unexpected shutdown occurs, the resulting production losses could be immeasurable.
How can we achieve a dual reduction in both the frequency and cost of subsequent maintenance while ensuring that transmission performance meets the required standards?
The limited-torque hydraulic coupling is precisely the core solution for overcoming these transmission challenges. By leveraging the principles of hydrodynamic transmission, it achieves smooth starting, precise overload protection, and highly effective vibration damping and noise reduction—thereby fundamentally extending equipment service life and ensuring uninterrupted production.
Today, we’ll be focusing on two star products under Guangdong Zhongxing Hydraulic Transmission—the YOX750 and DXA750 torque-limiting hydraulic couplers. Although these two models share highly similar core performance parameters and application scenarios, they each place distinct emphasis on design philosophy and user experience, precisely tailored to meet your diverse needs.

I. Shared Genes: Exceptional Performance That Stands the Test of Time

The YOX750 shares the same core performance parameters and application scope as the DXA750, providing a stable and reliable foundation for industrial drives.
Strong power transmission It is compatible with the rotational speeds of mainstream industrial motors. When the input speed is 1,000 r/min, the transmitted power ranges from 170 to 330 kW; when the speed is increased to 1,500 r/min, the power range can be expanded to 380 to 760 kW, meeting the power requirements under various operating conditions.
Reliable overload protection During the startup phase, the overload factor is controlled within the range of 1.5 to 1.8; during the braking phase, it stabilizes at 2.0. This establishes a robust safety barrier for critical components such as the motor and gearbox, preventing damage caused by overload.
Efficient energy utilization The transmission efficiency reaches as high as 0.96, minimizing energy loss to the greatest extent while ensuring smooth transmission, thereby helping enterprises reduce costs and improve efficiency.
Wide-scenario adaptation It is fully compatible with various industrial equipment, including belt conveyors, scraper conveyors, bucket elevators, bucket-wheel stacker-reclaimers, coal mills, ball mills, crushers, and more, covering multiple industries such as mining, metallurgy, building materials, and chemical engineering.
When core performance is evenly matched, the key to choosing between options lies in the differences in design philosophy and the overall lifecycle user experience.

II. Core Differences: Classic vs. Upgraded Model—How to Choose the Right One Without Overpaying?

As a representative of the DX upgrade series, the DXA750 achieves comprehensive optimization based on the classic technology of the YOX750. The differentiated advantages of the two models precisely match different operation and maintenance requirements:

1. Technology Positioning: Mature and Stable vs. Iterative Upgrades

The YOX750 adopts the time-tested, mature torque-limiting hydraulic coupling technology, which has been validated by over a decade of market experience. With its stable and reliable technical standards, it’s an ideal choice for those seeking a tried-and-true solution. In contrast, the DXA750 integrates modern design concepts with advanced material technologies, achieving a comprehensive upgrade while maintaining its core performance. Positioned in the mid-to-high-end market, it is well-suited for transmission applications with higher demands.

2. Maintenance-free cycle: Regular maintenance vs. long-term peace of mind

The YOX750 has a maintenance-free period of 6 to 12 months and is suitable for production environments with regular maintenance schedules and predictable downtime, such as small- and medium-sized manufacturing workshops and enterprises with dedicated maintenance teams. In contrast, the DXA750 significantly extends the maintenance-free period to 2 to 3 years, substantially reducing downtime for maintenance and lowering long-term operational and maintenance costs. It is particularly well-suited for enterprises with high demands for continuous production, or those whose equipment is installed in remote areas or at high altitudes where maintenance is inconvenient.

3. Structural Design: Flexible Adaptation vs. Standard Efficiency

The YOX750 features a variety of structural designs and offers a comprehensive range of specifications, enabling precise adaptation to special installation dimension requirements. It employs a plum-blossom elastic coupling for reliable performance, fully meeting basic transmission requirements. The DXA750, on the other hand, is primarily characterized by its standardized and universal design, facilitating enterprise inventory management and product interchangeability. Its coupling mechanism utilizes German high-elasticity coupling technology, which not only provides superior shock absorption and vibration damping but also boasts an extended service life. Moreover, this design significantly enhances ease of assembly and disassembly, reducing maintenance complexity.

4. Cost-effectiveness: Initial cost vs. total lifecycle cost—total lifecycle cost is more favorable.

The YOX750 has a lower initial purchase cost and transparent pricing, making it well-suited to meet basic transmission needs. It’s a cost-effective choice for budget-sensitive projects, short-term applications, or standardized production lines. Although the DXA750 has a slightly higher initial purchase price, its maintenance-free period of 2–3 years, longer service life, and superior operational stability give it an overall cost advantage over its entire lifecycle, making it a smart investment for those seeking long-term benefits.

3. Precise Selection: Find the Right Solution in One Minute

Based on the above-mentioned differences, you can quickly identify the suitable product simply by focusing on the core requirements:
If you pursue Stable and reliable + optimal initial investment Moreover, if your company has a regular maintenance schedule, tolerates downtime for maintenance relatively well, or has a limited project budget, the classic YOX750 model will provide you with a cost-effective solution that has been proven in the market.
If you place greater emphasis on Full lifecycle cost control + high operational efficiency We hope to minimize downtime losses, reduce maintenance intensity, or address the challenges of maintaining equipment in harsh environments. The long-lasting, maintenance-free, and highly stable features of the upgraded DXA750 will bring you long-term value.
In essence, there’s no absolute superiority or inferiority between the YOX750 and the DXA750—rather, they are solutions tailored for different application scenarios. By adopting a dual-product strategy, ZTE Hydraulics provides you with a more precise and flexible range of options, ensuring that every transmission system can achieve the optimal match.

IV. Brand Assurance: ZTE Hydraulics—Strength Builds Trust

Guangdong Zhongxing Hydraulic Transmission Co., Ltd., as a national-level high-tech enterprise, has consistently adhered to the philosophy of "surviving through quality and thriving through innovation." Thanks to its robust overall strength, the company has earned widespread market recognition: it obtained the 2023 Quality Management System Certification, the 2024 Occupational Health and Safety Management System Certification, the 2024 Environmental Management System Certification, and the 2024 High-Tech Enterprise Certificate. These four authoritative certifications have established a solid defense for product quality, management standards, and technological innovation.
Whether it’s the market-tested YOX series or the technologically upgraded DX series, each product undergoes rigorous quality testing before leaving the factory, ensuring that every piece of equipment delivered to you meets the highest standards.
For product manuals, accurate quotations, or 1-on-1 product selection guidance, simply search “ZTE Hydraulics” on Baidu, or call our consultation hotline at 18122503991. A dedicated consultant will provide you with customized solutions!

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