Zhejiang Huier Coating Environmental Protection Equipment Co., Ltd
Over 20 years of experience in manufacturing coating equipment！ There is no best, only better！
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Equipment description and core structure of coating line
Application scenario : fast and uniform coating of continuous plane/coil, such as color steel plate, metal coil, plastic film and decorative plate.
Highlights of the 2025 technology upgrade
greening :
Waterborne coating roller head (anti-corrosion ceramic coating)
Zero discharge water washing system (membrane separation reuse technology)
intelligent :
Digital twin model (real-time simulation of coating defect causes)
Adaptive roll system (dynamic compensation for coil thickness fluctuations)
1. Core equipment of roll coating production line is composed of
1. Volume release/reel system
function : automatic unwinding and rewinding of coil to ensure continuous production.
Key components :
▶ Hydraulic uncoiler (supporting 10-30 tons of coil)
▶ Servo drive winder (accuracy ±0.5mm)
▶ Automatic deviation correction device (photoelectric sensor + pneumatic regulation)
▶ Tension control system (magnetic powder brake +PLC closed-loop feedback)
2. Pretreatment segment
function : clean and activate the surface of the substrate, improve the adhesion of the coating.
Structure module :
Chemical cleaning tank (alkaline degreasing + pickling, 304 stainless steel)
washing unit (three stage countercurrent rinsing to reduce waste water discharge)
drying box (hot air circulation, temperature 80-120℃ adjustable)
3. main body of roller coating machine
(1) coating unit
core roll (accuracy ±0.001mm) :
→ coating roller (hard plated chrome steel roller, mirror polished surface)
→ measuring roller (ceramic coating roller, control coating thickness)
→ back pressure roll (silicone material, uniform pressure anti-wrinkle)
auxiliary system :
Paint circulating pump (anti-precipitation design)
Automatic viscosity control system (real-time monitoring ±5% error)
(2) precision regulating mechanism
roll gap adjustment : servo motor + linear encoder (accuracy 0.01mm)
roll speed synchronous control : variable frequency drive + multi-axis linkage algorithm
4. curing and drying system
high temperature oven :
Heat source: natural gas direct combustion/electric heating (in 2025, the mainstream is waste heat recovery type)
Temperature partition: preheating (80℃) → curing (180-220℃) → slow cooling (100℃)
Wind speed control: centrifugal fan + flow equalizing plate (wind speed 0.5-2m/s adjustable)
waste gas treatment : RTO incinerator (VOCs removal rate ≥99%)
5. Intelligent control center
hardware : Industrial PC+ multi-axis motion controller (support EtherCAT bus)
Software features :
Real-time monitoring of coating thickness (beta Ray/Laser thickness gauge)
Energy consumption optimization Algorithm (AI predicts paint consumption)
Remote operation and maintenance interface (5G Internet of Things module) 1. Core equipment of roll coating production line is composed of
1. Volume release/reel system
function : automatic unwinding and rewinding of coil to ensure continuous production.
Key components :
▶ Hydraulic uncoiler (supporting 10-30 tons of coil)
▶ Servo drive winder (accuracy ±0.5mm)
▶ Automatic deviation correction device (photoelectric sensor + pneumatic regulation)
▶ Tension control system (magnetic powder brake +PLC closed-loop feedback)
2. Pretreatment segment
function : clean and activate the surface of the substrate, improve the adhesion of the coating.
Structure module :
Chemical cleaning tank (alkaline degreasing + pickling, 304 stainless steel)
washing unit (three stage countercurrent rinsing to reduce waste water discharge)
drying box (hot air circulation, temperature 80-120℃ adjustable)
3. main body of roller coating machine
(1) coating unit
core roll (accuracy ±0.001mm) :
→ coating roller (hard plated chrome steel roller, mirror polished surface)
→ measuring roller (ceramic coating roller, control coating thickness)
→ back pressure roll (silicone material, uniform pressure anti-wrinkle)
auxiliary system :
Paint circulating pump (anti-precipitation design)
Automatic viscosity control system (real-time monitoring ±5% error)
(2) precision regulating mechanism
roll gap adjustment : servo motor + linear encoder (accuracy 0.01mm)
roll speed synchronous control : variable frequency drive + multi-axis linkage algorithm
4. curing and drying system
high temperature oven :
Heat source: natural gas direct combustion/electric heating (in 2025, the mainstream is waste heat recovery type)
Temperature partition: preheating (80℃) → curing (180-220℃) → slow cooling (100℃)
Wind speed control: centrifugal fan + flow equalizing plate (wind speed 0.5-2m/s adjustable)
waste gas treatment : RTO incinerator (VOCs removal rate ≥99%)
5. Intelligent control center
hardware : Industrial PC+ multi-axis motion controller (support EtherCAT bus)
Software features :
Real-time monitoring of coating thickness (beta Ray/Laser thickness gauge)
Energy consumption optimization Algorithm (AI predicts paint consumption)
Remote operation and maintenance interface (5G iot module)
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.
