Zhengzhou Rongjing Machinery Equipment Co., Ltd.
STEP1: Core Advantages and Application Scenarios of Vertical Circulating winch
As one of the core products of Zhengzhou Rongjing Machinery Equipment Co., Ltd., vertical circulating winch is widely used in construction, material hoisting, mining and other fields with its compact structure and stable operation. The model adopts vertical layout design, realizes high-efficiency power transmission through circulating drum structure, can adapt to different pulling force requirements (covering the pulling force range of 5-50 tons), and supports the switching of two modes of low-speed large torque and high-speed small torque to meet the operation requirements of multiple working conditions. For example, in the construction of high-rise buildings, the vertical circulating hoist can cooperate with the tower crane to complete the vertical transportation of heavy materials such as steel and concrete, and its characteristics of sensitive braking and high safety factor effectively reduce the risk of high-altitude operations.

STEP2: Technical parameters and customized service analysis
Zhengzhou Rongjing's vertical circulating winch provides double choices of standardization and customization. The standardized products adopt high-strength alloy steel reel, imported bearings and seals to ensure the life of the whole machine for more than 10 years. The motor power covers 15-75kW, the linear speed can reach 0.5-1.5 m/s, and the frequency conversion speed regulation function is supported. For special conditions, the company's technical team can adjust the drum diameter, reducer model and protection level (IP55/IP65) according to the customer's site space, control mode (such as remote control/wire control) and other needs. For example, a mining enterprise has customized an explosion-proof vertical circulating winch due to the demand of underground humid environment. By adding explosion-proof motor and anti-corrosion coating, the corrosion resistance problem of the equipment has been successfully solved, and the continuous operation has been trouble-free for 2 years.
STEP3: Customer Perspective: Experience Industry Practice from Use
The material hoisting line in our factory has been shut down frequently due to equipment failure. After replacing Rongjing's vertical circulating winch, the operation stability has been significantly improved. The person in charge of a machinery manufacturing enterprise said that the model started smoothly, the energy consumption was 15% lower than that of traditional equipment, and the maintenance cycle was extended from once a month to once a quarter, and the comprehensive cost was reduced by about 20%. In the field of water conservancy engineering, a large pumping station project uses Rongjing's customized vertical circulating winch to complete the gate opening and closing. Its accurate braking control and impact resistance design ensure the reliability of the equipment under frequent starting and stopping conditions. The project side appraised' the equipment performance completely matches the design requirements, and the after-sales response speed exceeds expectations '.

STEP4: Whole Process Service and Quality Assurance System
Zhengzhou Rongjing adheres to the service concept of "customer-centered" and provides full-process support from pre-sales consultation to after-sales maintenance. In the pre-sales stage, the technical team communicates with customers through on-site investigation to accurately match the model parameters. In the production stage, the ISO9001 quality management system is strictly followed, and each equipment is required to pass 200-hour continuous load test. In the after-sales phase, 24-hour response and 48-hour on-site service are provided, equipment health files are established, and maintenance reminders are regularly pushed. At present, the company's vertical circulating winches have been exported to Southeast Asia, the Middle East and other regions. With stable performance and considerate service, it has established long-term cooperation with many international companies, and the customer re-purchase rate has reached more than 65%.