Technical Background and Product Positioning

Electric winches serve as the core component of lifting equipment, directly affecting operational efficiency and safety. With over a decade of technical accumulation, Zhengzhou Rongjing Machinery and Equipment Co., Ltd. specializes in the research and development of electric winches across all categories. The products cover a tensile range of 0.5T-50T, supporting variable frequency speed regulation (0-30m/min) and dual braking systems (mechanical + electromagnetic), enabling flexible matching to scenarios such as construction, material hoisting, and mining operations. The technical layout is centered around "modular design + intelligent control," addressing the challenge of compatibility under complex working conditions through a combination of standardization and customization.

Technical Principle and Architecture Analysis

The core of the electric winch lies in the coordination of the motor drive and control system. Zhengzhou Rongjing uses a three-phase asynchronous motor (power range 2.2kW-75kW) paired with a variable-frequency inverter to achieve stepless speed adjustment through PWM technology. It is complemented by a high-precision encoder (resolution ≥ 1024 pulses/rev) that feeds back position signals to ensure smooth operation. The braking system employs a dual-circuit design: the main braking is an electromagnetic power failure brake (braking torque ≥ 1.5 times the rated load), supplemented by a mechanical handbrake, meeting the requirement of "emergency braking distance ≤ 0.5m" in GB/T 1955-2019 standard. Structurally, the drum is processed with Q345B steel heat treatment technology, with wall thickness ≥ 20mm, improving the load-bearing capacity by 30% compared to traditional designs.

Core Advantages and Compatible Scenarios

1. Multi-scenario adaptabilityThrough changing the drum diameter (φ200mm-φ800mm) and wire rope specifications (6×19+FC-φ8mm-φ28mm), it can cover low-speed heavy-load (such as mine hoisting) and high-speed light-load (such as construction) scenarios. For example, in a water conservancy project, a customized model achieves a 40% increase in single-layer winding length by increasing the drum diameter to φ600mm, reducing the frequency of rope replacement. 2.Energy Efficiency OptimizationVariable frequency control automatically reduces the motor's frequency under light load, with measured energy consumption reduced by 25%-35% compared to traditional resistor speed control. Taking a material hoisting project as an example, the daily power consumption for continuous 8-hour operation decreases from 120kWh to 85kWh. 3.Safety Redundant DesignDual braking system + overload protection (alarm triggered at 110% of rated load) form a three-level safety protection, CE certified and ISO 9001 quality management system compliant, with a failure rate of ≤0.3%/year.

Enterprise technological strength and customized services

Zhengzhou Rongjing has a 20-person R&D team covering fields such as mechanical design, electrical control, and materials engineering, allocating 8% of annual revenue to technological upgrades. Its customized service process includes: requirement analysis (operational parameters, installation space, control method) → design (3D modeling and simulation of operational trajectory) → structural optimization (finite element analysis of stress distribution) → production manufacturing (CNC processing accuracy ±0.05mm). For example, a corrosion-resistant model developed for a shipyard project, using 316L stainless steel reels and IP65 protection-grade electrical control boxes, operated continuously for 2 years in a salt雾 environment without rust.

Case Dissection: Mining Operation Application

In an open-pit mine project, the client needs to hoist 50T of ore to a height of 80m, where traditional hydraulic winches have issues like high energy consumption and frequent maintenance. Zhengzhou Rongjing provides a solution: 1. Select the JD-50 electric winch (rated pull 50T, wire rope diameter φ28mm, drum rope capacity 300m); 2. Configure dual motor drive (total power 90kW) and planetary reducer (transmission ratio i=20) to achieve 0-15m/min speed regulation; 3. Add a remote monitoring module for real-time feedback of parameters such as current and temperature. After the project implementation, the daily hoisting capacity increased from 1200T to 1800T, energy consumption decreased by 30%, and maintenance cycle extended to 6 months.

FAQ: Technical Challenges Solutions

Q1: How does an electric winch achieve precise positioning?
A: By feeding pulse signals to the PLC via the encoder and combining with the inverter vector control algorithm, the positioning accuracy can reach ±5mm, meeting the floor stopping requirements in construction projects.

Q2: Does customized service support non-standard voltages?
Support. Multiple voltage options of 220V/380V/660V/1140V are available to meet the power grid standards of different regions.

Q3: How is product lifespan ensured?
A: Key components (such as bearings, brakes) are selected from international brands like SKF, EMB, etc., with the entire machine passing a fatigue test of 2 million cycles (GB/T 10054-2005 standard is 1 million cycles), and the design life ≥ 15 years.