High Performance Chemical Cleaning Line for Mass Production of Home Appliance Shells and File Cabinets

Equipment description:

‌ Automatic pre-spray treatment spraying production line
‌ I. Overview of the equipment ‌
‌ functions ‌ : Through automatic spraying process to realize the workpiece surface degreasing, rust removal, phosphating, passivation and other pre-treatment, to provide a clean and active surface for spraying.
‌ Application field ‌ : automobile body, home appliance shell, file cabinet, metal structural parts and other mass production scenarios.
‌ Core advantage ‌ : the whole process of unmanned operation (feeding → processing → drying → transfer)
Treatment efficiency increased by 40% vs traditional soaking process
30% reduction in liquid medicine consumption (Intelligent circulation system)
‌ two, the standard process ‌
Upper part → pre-degreasing (60℃) → Main degreasing (50℃) → Washing 1 → surface conditioning → phosphating → washing 2 → pure water washing → drying → Transfer to spraying line
The AI visual inspection module can be selected to automatically identify the contamination level of the workpiece and adjust the spray parameters
Standard line body width 2.5-4m, support 5G remote operation and maintenance (new feature in 2025)
Typical production capacity: 120-400 pieces/hour (depending on workpiece size and process time)

Main structure and components:

3. Core structure and components ‌
‌1. Spray system ‌
‌ multi-direction spray room ‌ : Material: 3004 stainless steel or PP anti-corrosion board
Nozzle type: Fan/cone (flow rate 5-20L/min, pressure 0.2-0.5MPa)
Coverage: ≥98% (3D spray)
‌ Circulation system ‌ : corrosion resistant centrifugal pump (flow 50-200m³/h)
Double filter (20 mesh coarse filter + 5μm fine filter)
‌2. Slot module ‌
Tank type Functional volume range heating method
Degreasing tank alkaline oil removal 5-20m³ steam coil/electric heating
Phosphating tank to generate phosphate film 3-15m³ titanium alloy heat exchanger
Pure water tank conductivity ≤10μS/cm 2-8m³ No heating
‌3. Automatic conveying system ‌
‌ suspended conveyor chain ‌ : frequency conversion control (speed 0.5-3m/min)
Double chain anti-drop design (bearing ≤200kg/ hanger)
‌ rotating elevator ‌ : to achieve 360° no dead Angle spray workpiece
Positioning accuracy ±1mm (servo motor drive)
‌. Intelligent control system ‌
‌ Central PLC+ Industrial Internet of Things ‌ : real-time monitoring: pH, temperature, conductivity, liquid level
Automatic replenishment: drug concentration deviation ≤±5%
Data traceability: Store production logs for ≥3 years
‌ Human Machine interface (HMI) ‌ : 7 "/10" touch screen, bilingual in Chinese and English
The fault code is displayed instantly (e.g. E01: nozzle blockage)
‌ Environmental protection and safety system ‌
‌ Wastewater treatment unit ‌ : Three level neutralization tank (pH 6-9 standard discharge)
Membrane separation technology (heavy metal removal rate ≥99%)
‌ waste gas treatment ‌ : water curtain dust removal + activated carbon adsorption (VOCs≤30mg/m³)
‌ safety ‌ : emergency stop button (all lines 0.3 seconds power off)
Infrared grating (to prevent personnel from straying into the work area)
‌ table of technical parameters ‌
Project parameter range
Processing workpiece size length ≤8m, width ≤2.2m
Operating temperature normal temperature -80℃ (segmented control)
Installed power 80-350kW
Compressed air consumption 6-8bar, 0.5m³/min
Surface cleanliness up to ISO 8501-1 Sa2.5

Features:

1.High cost performance Based on the customer's product positioning and development strategy, based on economic benefits, to achieve the best cost performance.

2.Advanced equipment design concept of excellence, high degree of automation of industrial equipment, show modern advanced enterprise style.

(3.High adaptability to meet the current production requirements, and reserve space for development, considering the later production increase and quality improvement needs.

4.Quality standards strictly follow the IS0900 quality management system, and every small link of the entire equipment installation is strictly checked.

Domestic large-scale coating equipment, intelligent equipment, and environmental protection equipment production enterprises-Zhejiang Huier Coating Environmental Protection Equipment Co., Ltd has 37 years of experience industry team in the powder coating equipment,intelligent equipment and environmental protection equipment.It is the national high and new tech enterprise,Specialized, refined, and innovative small and medium-sized enterprises， scientific and technological SMES 27years specialized R&D, design, manufacture, installation, commissioning ,maintenance of varies coating equipment, automatic equipment, intelligent control system, waste water,waste gas environmental protection equipment and treatment engineering.The company is located in Wukang Street, Deqing County, covers an area of 30,000 square meters, workshop of more than 20,000 square meters, more than 200 employees. The company has passed ISO9001 international system certification, ISO14001 environmental management system certification and ISO45001:2018 Occupational health and safety management system certification, and obtained more than 40 national patents.

The company actively and constantly introduce excellent talents, focus on the development of coating equipment and environmental protection equipment of new technology, new process and new products every year.It is the mission of all staff to continuously develop and grow, meet the needs of customers and create value for customers.

The products are used in all kinds of metal surface, plastic, aerospace, auto parts, mechanical equipment, furniture and other surface treatment.It will meet the customer needs, because it adopts automatic production to anti-corrosion and powder coating the user's products,coating solid bright.

In aerospace, household appliances, light industry, furniture, machine tools, construction, motorcycles, automobiles, communications, aluminum, electric power, agricultural machinery and transportation and other industries by the user's praise. The company continue to innovate, research and development of new products, design and manufacture safety, energy saving, environmental protection, intelligent features of fire-proof safe, powder coating environmental protection equipment and intelligent equipment engineering projects.

The company not only meet the needs of domestic customers, but also in Southeast Asia, the Middle East, Europe, North America, South America and other 27 countries occupied the market has won the favor of customers! The company always dedicated to our customers with the overall intelligent coating environmental protection system solutions and system services.