A Series Precision Roller Chains Manufacturers

Single-strand Roller Chains ensure smooth and efficient transmission

In the realm of mechanical power transmission, reliability, efficiency, and precision are non-negotiable—especially in industries ranging from agriculture and logistics to manufacturing and automation. Among the most fundamental yet indispensable components in these systems are roller chains, and in particular, single-strand roller chains. Known for their simplicity, cost-effectiveness, and dependable performance, single-strand roller chains provide smooth and efficient power transmission in a wide array of applications. Hangzhou Qianjiang Chain Industries Co., Ltd., a trusted name in China’s transmission component industry since 1987, has been at the forefront of designing and manufacturing high-quality single-strand roller chains that meet the rigorous demands of modern machinery.

Founded in 1987, Hangzhou Qianjiang Chain Industries Co., Ltd. has built a solid reputation as a comprehensive manufacturer specializing in a diverse portfolio of chain products. These include A.B series precision roller chains (which encompass single-strand variants), motorcycle-specific chains, high-end oil-sealed chains, logistics and transportation machinery chains, dustproof and waterproof industrial oil-sealed chains, agricultural machinery chains, lifting machine chains, silent tooth transmission chains, stepless transmission chains, intelligent door and window bending chains, stainless steel chains, non-standard special chains, and compatible sprockets. Within this extensive lineup, the company’s single-strand roller chains stand out for their precision engineering, consistent performance, and adaptability across light- to medium-duty applications.

Single-strand roller chains consist of a single row of interconnected links, each comprising inner and outer plates, pins, bushings, and rollers. This streamlined design minimizes weight and space requirements while delivering reliable torque transmission with low friction and minimal energy loss. They are particularly well-suited for applications where space is limited, loads are moderate, and maintenance simplicity is valued—such as conveyor systems in packaging lines, small agricultural implements, printing machinery, food processing equipment, and automated assembly systems.

Hangzhou Qianjiang’s A Series Precision Roller Chains—especially those in the A.B series—are manufactured to exacting international standards (including ISO, ANSI, and DIN), ensuring dimensional accuracy, uniform tensile strength, and consistent fatigue resistance. The company employs advanced heat treatment, precision punching, and shot peening processes to enhance the durability of each component. Furthermore, optional oil-sealed or pre-lubricated variants are available for environments where contamination or extended maintenance intervals are concerns. These enhancements significantly reduce wear between pins and bushings, prolonging chain life and maintaining smooth operation over time.

A key differentiator for Hangzhou Qianjiang lies in its deep-rooted commitment to innovation through collaboration. Since 1991, the company has maintained a strategic partnership with the Chain Transmission Research Institute of Jilin University of Technology (now part of Jilin University) and the China Chain Research Institute. This production-learning-research alliance has driven continuous improvements in chain design and materials science. While much of the joint work has focused on advanced products like the PIV stepless transmission chain and CL series silent tooth chain, the insights gained have also been applied to foundational products—including single-strand roller chains. For instance, optimized link geometry and improved surface finishes derived from this research have enhanced the load distribution and noise reduction of Qianjiang’s standard roller chains, making them quieter and more efficient than conventional alternatives.

Moreover, Hangzhou Qianjiang understands that “one size does not fit all.” While standard single-strand chains serve the majority of industrial needs, the company also excels in producing non-standard and customized solutions. Whether a client requires a specific pitch, special attachments, corrosion-resistant stainless steel construction, or integration with unique sprocket profiles, Qianjiang’s engineering team can develop tailored single-strand chains that meet exact operational parameters without compromising on quality or performance.

The benefits of using high-quality single-strand roller chains extend beyond mechanical efficiency. Smooth transmission reduces vibration and stress on connected components, leading to less wear on shafts, bearings, and sprockets. This, in turn, lowers maintenance costs and extends the overall service life of the machinery. In time-sensitive operations—such as logistics sorting systems or continuous agricultural processing lines—even minor transmission inefficiencies can cascade into significant productivity losses. By choosing Hangzhou Qianjiang’s precision-engineered single-strand chains, operators ensure consistent, trouble-free performance.

Quality assurance is embedded in every stage of Qianjiang’s production process. From raw material selection to final inspection, each chain undergoes rigorous testing for tensile strength, elongation, hardness, and dimensional tolerance. This meticulous approach has enabled the company to serve clients not only across China but also in international markets seeking reliable, competitively priced transmission components.

In conclusion, single-strand roller chains may appear simple, but their impact on machinery performance is profound. Hangzhou Qianjiang Chain Industries Co., Ltd. leverages nearly four decades of expertise, cutting-edge research collaboration, and a customer-centric manufacturing philosophy to deliver single-strand roller chains that guarantee smooth, efficient, and durable power transmission. Whether integrated into a compact packaging machine or a field-ready planter, Qianjiang’s chains embody the perfect balance of tradition, innovation, and reliability—proving that even the most fundamental components can drive extraordinary results.