Zhengzhou Rongjing Machinery Equipment Co., Ltd.
Zhengzhou Rongjing Machinery Equipment Co., Ltd.
Zhengzhou Rongjing Machinery Equipment Co., Ltd.
Section 1: Technical Principle and Architectural Design of Electric Hoist
Zhengzhou Rongjing Electric Hoist adopts modular design, with the core consisting of a motor drive system, reduction mechanism, braking device, and electrical control module. The motor is a three-phase asynchronous motor, with power ranging from 3kW to 75kW, suitable for different tension requirements (500kg-20t). The reduction mechanism uses hard toothed gears for transmission, achieving an efficiency of over 95%, and is paired with a dual brake design (mechanical + electromagnetic), ensuring a braking time ≤ 0.2 seconds for safe suspended heavy loads. The electrical control module integrates a PLC controller, supporting variable frequency speed regulation (0-1500rpm adjustable), and is equipped with multiple protection functions such as overload, under-voltage, and phase loss.
Section 2: Core Advantages and Suitable Scenarios
1. High adaptabilityOur products offer various installation types including vertical, horizontal, and suspended, supporting customized rope diameters (φ8mm-φ32mm) and rope capacity (100m-1000m), suitable for scenarios such as material hoisting in construction projects, ore transportation in mining, and gate opening and closing in hydraulic engineering. For instance, in a mining project, Rongjing customized an explosion-proof electric winch for the client by adding explosion-proof motors and sealed structures to meet the usage requirements of the flammable and explosive underground environment.
2. High-efficiency and energy-savingUsing variable frequency speed regulation technology, energy saving of 20%-30% compared to traditional winches. For example, at a construction site, after using Rongjing electric control winches, the daily electricity consumption of a single unit dropped from 45kWh to 32kWh, saving over 20,000 yuan in electricity bills annually.
3. Long lifespan and low maintenanceKey components such as gears and bearings are selected from imported brands (e.g., SKF, FAG), heat-treated to achieve hardness of HRC58-62, and wear resistance is improved by 50%. The overall machine design life exceeds 10 years, with daily maintenance requiring only regular checks of lubricant and brake pad wear.
Section 3: Practical Case: A Water Conservancy Project on Gate Opening and Closing
1. Project BackgroundA certain reservoir requires replacement of the existing manual winch. The new equipment should support remote control, adjustable opening and closing speed, and have waterproof and moisture-proof functions.
2. Customized SolutionThe Rongjing technical team designs an external variable frequency electric control winch according to the working conditions, with a motor power of 15kW, a pulling force of 5t, and a protection grade of IP65. The electric control system integrates a 4G module, supports remote operation via mobile APP, and is equipped with a water level sensor to achieve automatic opening and closing of the gate.
3. On-the-ground resultsAfter 6 months of operation, the customer reported that the opening and closing time was reduced from 15 minutes to 3 minutes, with zero failure rate, and the use of variable frequency speed regulation reduced the impact on the gate structure, extending the overall lifespan of the equipment.
4. Technical Parameters and Selection Guide
The main parameters of Rongjing Electric Hoist are as follows:
When selecting, determine the tensile and speed requirements based on the working scenario, e.g., for short-distance lifting in construction, high-speed models (speed ≥ 10m/min) can be prioritized, while for mine hoisting, focus on low-speed high-torque models (speed ≤ 5m/min).
Fifth, FAQ: Frequently Asked Questions
Q1: Can the electric winch be used in low-temperature environments?
A: Rongjing products support environmental temperatures from -20℃ to +50℃, for cold regions, low-temperature lubricants can be selected and heating devices can be added.
Q2: How long does the customization period take?
A: Standard model delivery within 15 days, customized models require 25-40 days based on technical complexity.
Q3: How to ensure after-sales service?
A: The company offers a 2-year warranty, with 12 service outlets nationwide, supports 48-hour response, and provides operation training and regular inspection services.