About Us

Changhzhou Shenghjie Electronic Co., also known as SJ, has been providing customers with high-quality potentiometers since 2003. At the beginning of our company’s history, we developed metal shaft rotary potentiometers to adjust the speed of various power tools. Today, based on years of market research and industry experience, we now offer a series of products like slide potentiometers, trimmer potentiometers, switch potentiometers, and rotary encoders.

Our products are now widely applied in a variety of industries and applications, including automotive electronics, welding machines, power tools, rotary antennas, medical instruments, and home appliances. We employ a highly experienced technical team and operate out of a 7,000 square meter factory that is equipped with highly advanced processing equipment. We have all of the necessary capabilities to design and produce potentiometers to meet your requirements to a tee and provide competitive prices and a timely delivery. Our production facility is operated under ISO9001 quality management system standards. Prior to delivery, we verify the product performance meets your customization requirements completely to ensure that only qualified products are delivered to customers.

Through hard work and persistence, we have produced custom products for customers throughout Southeast Asia, Europe, America, and the Middle East. We have established long term cooperative relationships with local factories and suppliers to ensure we have a steady supply of quality materials. We maintain a high standard of quality when it comes to our products and after-sales services for our customers.