Zhengzhou Rongjing Machinery Equipment Co., Ltd.
1. technical background: industry demand and customization trend of electronically controlled winch
As a core component of lifting equipment, the performance of an electrically controlled winch directly affects both construction efficiency and safety. In construction, mining, water conservancy and other scenarios, different working conditions put forward different requirements for the pulling force, speed, installation form and control mode of the hoist. For example, mining operations require equipment with explosion-proof and corrosion-resistant characteristics, while water conservancy projects require winch to adapt to wet environments and have the ability to operate continuously for long periods of time. Traditional standardized products are difficult to cover all needs, and customized development has become a key direction for industry technology upgrades.

2. Zhengzhou Rongjing's Technical Layout: Full Category R & D and Customization Capability
Zhengzhou Rongjing Machinery Equipment Co., Ltd. has been deeply engaged in the field of hoisting machines for many years, forming a technical layout covering a full range of models such as electric control hoisting machines, planetary handbrake hoisting machines, vertical circulating hoisting machines, etc. The product specifications of the electronically controlled winch are optional from 0.5 tons to 50 tons of pulling force, and the speed range is 0.5-20 m/min. It supports various installation forms such as vertical, horizontal and suspended, and is suitable for different space limitation scenarios. The technical team standardizes core components such as motors, reducers and brakes through modular design, while retaining interface scalability, which can quickly respond to customer customization needs.
In the customization process, the company adopts the five-step method of "requirements analysis-scheme design-structural optimization-manufacturing-test verification. For example, the explosion-proof electric hoist customized for an overseas mine project meets the extreme environmental operation requirements of -30 ℃ to 50 ℃ by selecting IP65 protection grade motor, adding explosion-proof brake and corrosion-resistant coating, and the continuous operation life of the equipment is more than 8000 hours.

Analysis of 3. technical parameters: key performance indicators of customized equipment
Take Zhengzhou Rongjing as an example of an electronically controlled winch customized for a water conservancy project, its core parameters are as follows:
The equipment reduces wire rope wear by optimizing the ratio of drum diameter to wire rope diameter (D/d≥ 25); using high-strength alloy steel gears, the transmission efficiency is increased to 92%, which is 15% energy-saving compared with traditional models. In the actual test, the temperature rise of the equipment is only 35 ℃ after 120 hours of continuous operation at full load, and the braking performance is stable, which meets the long-term operation requirements of water conservancy projects.
4. Technology Case: Application of Customized Electronically Controlled winch in Ship Terminal
A coastal ship terminal needs to replace the original hydraulic winch, which faces challenges such as narrow space, remote control and salt spray corrosion prevention. Zhengzhou Rongjing technical team proposed the following solutions:
STEP 1: Operating Condition Analysis: Measure the size of the installation space, confirm that the pulling force requirement is 8 tons, the speed requirement is 3-8 m/min, and the control distance exceeds 50 meters.
STEP 2: Solution DesignThe vertical installation structure is adopted to reduce the occupied area; the frequency conversion motor PLC control system is selected to realize remote wireless control; the core components are made of 316L stainless steel, and the surface is sprayed with anti-salt spray coating.
STEP3: Production and Testing: Optimize the reel structure through finite element analysis to reduce stress concentration; 480 hours of continuous testing in a simulated salt spray environment to ensure that the coating does not fall off and the insulation performance of the motor meets the standard.
After the delivery of the project, the operating efficiency of the equipment was increased by 30%, the maintenance period was extended from once a month to once a quarter, and the customer feedback that "customized design accurately solved the space and control problems, and the stability of the equipment exceeded expectations".
Summary of 5. Technology Advantages: Value Upgrade from Standardization to Customization
Zhengzhou Rongjing's electronic control winch customization technology, the core lies in the "demand matching degree" and "technical reliability" balance. Through modular design to shorten the development cycle (conventional custom project delivery cycle ≤ 45 days), combined with strict quality control (from parts processing to the whole factory through 12 quality inspection process), to ensure that customized equipment not only meet individual needs, but also have the high reliability of standardized products. At present, its customized solutions have covered more than 20 countries around the world, forming a typical application case library in mining, water conservancy, construction and other fields, providing a replicable practice path for industry technology upgrading.