Eco-Friendly Low-Emission Cast Iron Tableware Enamel Coating Line

• Customization: Available
• Application: Appliance Industry
• Coating Type: Anti-corrosion Coating
• Model NO.: 02
• Heating system: Diesel, electric, gas, LPG
• Warranty: One-Year Warranty
• Furnace Temperature: 830-900℃ Optimal Range for Enamel Frit Melting
• Temperature Control Accuracy: ±2℃
• High-Temperature Zone: ≤±5℃ (at Any Point in The Furnace)
• Degreasing Temperature: 50-60℃ (Processing Time 15-20min)
• Pickling Temperature: 40-50℃ (for Rusty Workpieces)
• Drying Temperature: 80-120℃ (Drying Time 10-40min)
• Power Supply: 440/380V/50Hz, 220V/60Hz
• Workpiece Materials: Carbon Steel/ Stainless Steel
• Applicable Workpieces: Water Heater Tank
• Physical Pre-Treatment: Shot Blasting/ Manual
• Enamel Dry Film Thickness: 150-500μm
• Adhesion: ≥5n/Cm
• Salt Spray Resistance: ≥500 Hours
• Capacity: 80-300 Pieces / Hour (50L Tank)
• Energy Consumption Per Unit Product: ≤8 Kw·H / Piece
• Transport Package: Cartons/Waterproof Plastic Film/Wooden Pallets
• Specification: custom
• Trademark: TIMS
• Origin: China
• HS Code: 8424899990
• Production Capacity: 76sets/ Year

Product Description

Product Description

Basic Information

Product Name: Water Heater Enamel Production Line

Fully automatic integrated enamel line for water heater tanks, covering pre-treatment, enamel prep, wet/dry application, drying, firing, cooling, and inspection.

Applications:

Workpiece Type: water heater tank (including storage electric water heaters, storage gas water heaters, heat pump water heaters, solar water heaters).

Workpiece Materials: Carbon steel (a mainstream choice), Stainless steel (suitable for high-end models).

Workpiece Specifications: Compatible with cylindrical tank dimensions of diameter 300-600mm and length 400-1800mm, accommodating different capacity models from 5L to 600L (larger specifications can be customized as needed).

Core Process Parameters

Furnace Temperature: 830-900℃ for enamel frit melting, control accuracy ±2℃, uniformity ≤±5℃.

Chemical Pre-treatment: Degreasing at 50-60℃ (15-20min), pickling at 40-50℃, drying at 80-120℃ (10-40min). Supports mixed production of various tank models.

Physical Pre-treatment: Shot blasting. Manual or automatic changeover for different specs.

Enamel Coating: Dry film thickness 150-500μm, adhesion ≥5N/cm, salt spray resistance ≥500h.

Capacity & Energy Consumption:

Capacity: 80-300 pcs/hr (50L tank), supports 24-hour operation.

Energy Consumption Indicators: Energy consumption ≤8 kW·h/piece, thermal efficiency ≥85% (furnace).

Power Supply & Environment:

Power: 440/380V/50Hz, 220V/60Hz, customizable. Installed power 180-2000kW.

Operating Environment:

Temp 5-40℃, humidity ≤85%, suitable for standard workshops.

Certifications & Qualifications:

CE, ISO9001, SGS. Meets EU ECODESIGN and Chinese GB/T 29519-2013 standards.

Warranty Period: 1-year warranty, lifelong tech support, and spare parts supply.

Product Advantages

1. Industry-leading flexible tech with 10+ patents, adaptable for multiple models: Utilizing TIMS's patented technologies, including:

(1) Automatic Spray Pickling Pre-treatment and Enameling Drying/Firing System for Heater Tanks (CN ZL 2015 1 0351643.5);

(2) Robot Automatic Gripper for Mixed Production of Heater Tanks (CN ZL 2015 1 0350390.X);

(3) Loading/Unloading Device for Automatic Spray Pickling of Heater Tanks (CN ZL 2015 1 0351280.5);

(4) Synchronous Automatic Positioning Device for Heater Tanks and Baskets (CN ZL 2015 1 0348019.X);

(5) Precise Positioning Mechanism for New Conveyor Chain Hanger (CN ZL 202211229442.4);

(6) Universal Robot Enameling System for Mixed Heater Tank Production (CN ZL 2015 1 0351945);

and 10+ other patents.

2. High capacity and efficiency:
Thanks to fully automated, flexible 'one-piece flow' production, the line achieves high efficiency and a capacity of up to 350 units/hour.

3.Product stability and low failure rate:
TIMS's Water Heater Enamel Line integrates 20+ years of R&D, featuring an innovative design, premium configuration with European parts, low failure rate, robust diagnostics, and easy maintenance.

4.Dual patent energy-saving technologies reduce energy consumption and costs:
TIMS's furnace uses high-temp insulation wool, nano materials, and a heat reuse system, enhanced by patented technologies. Powder Coating Exhaust Heat Utilization System (CN ZL 202222652871.4);

Enamel Furnace Roof Waste Heat Utilization System (CN ZL 202320531560.4);

The Oven Exhaust Heat Secondary Utilization System (patent number CN ZL 202423315073.8) results

in 40% less heat loss than traditional equipment, cutting energy use by 40% for the enamel line.

5. Efficient, eco-friendly process meets strict global standards:

The pre-treatment section has an integrated waste gas system and optional wastewater treatment, achieving COD ≤80mg/L (below GB 8978-1996); the coating booth has a 99.5% dust collector. It meets EU EEA and Chinese GB 13271-2014 standards, ideal for export manufacturers.

6. Wet enameling ensures slurry circulation, fewer defects, low rejection rate:

Utilizing TIMS's patented Close-loop Rapid Slurry Return Device (CN ZL 201510348316.4), the automatic water heater tank enameling machine delivers rapid, enclosed slurry circulation. It conserves slurry, ensuring consistent pickup. This fully automated system, tailored for water heater tanks, uses servo motors for adjustable uniform rotation (300-600mm specs). With a precise slurry delivery pump, it ensures even application on both tank walls, overcoming coating challenges in complex areas like welds and pipe orifices. This boosts enameling capacity, conserves slurry, enhances quality, and reduces rejection rates.

7. Innovative anti-drop mechanism for workpieces:

Patented technology (An Enamel Furnace with Protective Measures, Patent No.: CN ZL 202022244902.3) optimizes the enamel furnace structure to protect heating elements from damage due to potential workpiece drops.

Product composition

1. Chemical treatment:

This process includes degreasing, rinsing, organic acid cleaning, two-stage rinsing, and drying in a tunnel (hot air circulation type with an air heat recovery heat exchanger). Tanks, made from PP material, resist acid and alkali corrosion, and feature online level and concentration monitoring systems and automatic chemical dosing.

2. Physical treatment:

Removes rust, oil, and oxide layers via a shot blasting system.

Enamel preparation module: The Enamel Powder Ingredient High-Speed Mixing Tank (500-800rpm, temperature control jacket) is used for glaze milling, mixing, aging, and enamel slurry filtration (100-mesh). The Constant Temperature Storage Tank (25±2°C, with agitator) ensures slurry delivery to application points for real-time use.

3. Enameling module:

2-4 automatic enameling units (servo-driven rotation and precise slurry delivery) for comprehensive flow coating/roll coating, enclosed slurry return, filtration, and reuse.

Wet enamel drying module: Zoned drying at 30 to 120°C ensures gradual moisture removal and prevents coating cracks.

4. Firing and curing module:

This includes a continuous gas radiant tube firing furnace or electric heating enamel furnace, with an inlet/outlet cold-hot workpiece exchange zone (280-350°C) and firing zone (750~850°C). Features a waste heat recovery exchanger using flue gas heat to preheat combustion air, an overhead conveyor, and high-temperature resistant hangers.

Product composition

1. Conveyance and positioning module:

Standard or power and free conveyor (dual-track, 200kg load per unit), servo-driven lifting transfer car (positioning error ≤ 0.1mm), workpiece flip-over mechanism (auto-rotates tank during spraying for uniform coating), and workpiece positioning/centering mechanism for reliable robot pickup.

2. Control & inspection module: The PLC control cabinet (12-inch touch screen, stores 100 process recipes), and the MES data interaction unit (enables real-time upload of production data, qualification rate, and energy consumption), offers an offline quality inspection station with adhesion tester, coating thickness gauge, and salt spray test sampling. The module integrates a visual defect detection system (identifies pinholes ≥0.2mm and scratches).

3. Environmental module: Includes waste slurry sedimentation, water separator, and enamel furnace exhaust gas treatment.

Product Features

1. Specialized design: 
The production line is professionally engineered for the pre-treatment and enameling processes specific to water heater tanks. It ensures a uniform coating and adequate firing at critical areas, including the tank body, pipe orifices, and welds, thereby addressing the pain points of traditional manual coating, such as "thin coating on edges/corners" and "missed coating on welds." 

2. Modular expandability:
Each functional module can be independently separated and combined. It supports capacity expansion by adding enameling units or extending the firing furnace length. Additionally, it allows for process upgrades, such as incorporating enamel slurry filtration units (adaptable for special enamel formulas), without requiring the replacement of the entire equipment, thereby extending the production line's life cycle.

3. Easy operation & maintenance:
Equipped with a graphical touch screen interface, pre-set with production processes and parameters for common product specifications, the system includes fault detection and alarm functions. These features enable quick fault retrieval and solution identification, and allow for remote maintenance and debugging.

4. Intelligent monitoring:
TIMS's automated, intelligent, and informatized enamel production line utilizes PLCs and touch screens to display and monitor data in real-time. This includes conveyor speed, furnace temperature, various pressures, production capacity, and safety parameters. In the event of abnormal situations, such as temperature exceedance or coating material shortage, audible and visual alarms are triggered. Additionally, the system records the maintenance cycles for core components, including spray guns and heating elements.

5. High efficiency and low consumption: 
TIMS's automated, intelligent, and informatized enamel production line features a full-process automation design, short design cycles, refined organization, and implementation by experienced workers. This leads to shortened production, installation, and commissioning timelines. 

6. High efficiency and low consumption:
The automated production with minimal or no personnel, efficient energy conversion and waste heat recovery, and coating material recycling result in TIMS's enamel production lines having low energy consumption, reduced labor costs, and high material recovery rates.

7. High automation & stability:
TIMS's automated, intelligent, and informatized enamel production line facilitates full-process robotic automatic loading, robotic automated production, robotic automated changeover for flexible production, robotic automatic transfer, and robotic automatic unloading – achieving minimal-personnel or even unmanned "one-piece flow AI intelligent" production.

8. Exceptional Enamel Quality: 
Wet enameling processes use automatic flow coating, roll coating, or spray coating to ensure a uniform application of enamel.
Dry enameling, on the other hand, employs automatic electrostatic spraying for the same purpose.
The high-temperature firing furnace is equipped with temperature control precision within ±3°C, ensuring superior firing quality. The resulting enamel layer is not only uniform and smooth but also boasts excellent impact resistance, acid and alkali resistance, and adhesion of ≥5N/cm, meeting the ASTM D3359 standard.

Company Profile

ABOUT US

TIMS Group Company was founded in 2003. It is a professional company engaged in the research and development, manufacturing, sales and service of high-end enamel equipment, intelligent enamel production line equipment, intelligent coating production line equipment, intelligent spraying, high-temperature enamel firing equipment, robot automation and other non-standard automation equipment. It is a national high-tech enterprise, vice chairman unit of China Enamel Industry Association, benchmark enterprise of China Enamel Industry Association, intellectual property demonstration enterprise in Guangdong Province, specialized and special new enterprise in Guangdong Province, gazelle enterprise in Guangdong Province, standardized enterprise in Guangdong Province, innovative small and medium-sized enterprise in Guangdong Province, and member unit of China Hardware Products Association Metal and Non-metal Coatings Committee for Metal and Non-metal Coatings.

After years of development, TIMS strategic layout has been formed with Shenzhen Qinhai TIMS Technology as its headquarters and Dongguan TIMS and Hubei TIMS manufacturing bases. The Dongguan manufacturing base is located in Dongguan City, Guangdong Province, with a factory building area of 15,000 square meters. The Hubei Manufacturing Base is located in Yunmeng Economic Development Zone, Xiaogan City, Hubei Province, covering an area of 100,000 square meters.

Until now, we have 93 utility model patents, 31 invention patents, and 33 invention patents under application. TIMS has won one second prize for scientific and technological progress of the China Light Industry Federation, one software copyright and three registered trademarks. TIMS's "Intelligent Pre-treatment Coating Production Line", "Intelligent Cleaning Production Line for Water Heater Inner Tank", "Intelligent Enamel Firing Production Line for Water Heater Inner Tank" and "Intelligent Enamel Firing Production Line for Water Heater Inner Tank" have obtained the first set of products in Guangdong Province. We have also obtained the IATF16949:2015 Quality Management System Certification and have published more than 10 academic papers in various professional journals and magazines.

COMPANY BUSINESS SCOPE

- Complete Set Of Automatic Enamel Coating And Firing Equipment

- Automatic Pre-surface Treatment Equipment

- Automatic Painting And Powder Coating Equipment

- Robot Automation And Other Non-standard Automation Equipment

- Automatic Electrophoresis Coating Production Line Equipment

- Various Logistics Conveying Equipment

 

DONGGUAN TIMS AUTOMATIC EQUIPMENT CO., LTD

Dongguan Address: 10B Intelligent Equipment Industrial Park, Qinfeng West Rd No.2, Qinfeng Town, Dongguan City, Guangdong Province, China

 

TIMS TECHNOLOGY (HONG KONG) LIMITED

Hong Kong TIMS Address: 5th floor, Heda Business Mansion, 902 Emperor Street, Shamshu, Hong Kong, China

 

SHENZHEN TIMS TECHNOLOGY CO., LTD

Shenzhen TIMS Address: No.1, Qianwan 1st Road, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen City, Guangdong Province, China

 

HUBEI TIMS MACHINERY EQUIPMENT CO., LTD

Hubei TIMS Address: TIMS Advanced Technology Industrial Park, Xinxial Road, Yunmeng County Economic Development Zone, Hubei Province, China

COOPERATIVE CUSTOMERS

FAQ

FAQ

1. How long does it take to produce the equipment we ordered?
The production lead time depends on your specific customization requirements. For a complete coating line (the most common type of equipment we supply), the standard production cycle is 30-70 days. If your order involves special configurations (e.g., extended production capacity, or additional functional modules), we will provide a detailed timeline after confirming the technical plan with you.

2. If I want to discuss product procurement with you, what information do I need to provide?
To help us quickly customize solutions and quote accurately, please share the following key details:

1). Type of workpieces to be processed (e.g., auto parts, metal frames, household appliances);

2.) Maximum and regular dimensions of the main workpieces (length × width × height, in mm or inches);

3). Weight range of workpieces (maximum and minimum weight, in kg or lbs);

4). Expected daily output (based on 8 working hours/day and 24 working days/month, e.g., 500 pieces/day);

5). Coating process requirements (e.g., liquid painting, powder coating, enamel coating, electrophoretic coating...);

6). Curing conditions (room temperature curing, electric heating curing, fuel heating curing, natural gas/LPG curing);

7). Available factory space dimensions (length × width × height, in meters or feet) – this helps optimize equipment layout.

3. How will you install the equipment we ordered? And how long will the installation take?
We provide turnkey installation and commissioning services: Our professional engineers will go to your factory to install, debug, and test the equipment until it operates stably.
1). Installation duration: Generally 30-60 days, which varies based on the project complexity (e.g., small coating machines take ~20 days, while large integrated lines may take 60+ days). We will confirm the exact schedule in the contract.
2). Cost note: As per industry practice, the buyer shall bear the on-site engineers' travel expenses (round-trip air tickets), accommodation, and meals during their stay at your factory.

4. What after-sales services do you provide?
We offer comprehensive after-sales support to ensure your equipment runs smoothly:
1). Spare parts supply: We provide a set of free wearing parts (e.g., filters, nozzles) with the equipment. For subsequent needs, we can deliver spare parts within 3-7 working days via international logistics.
2). Maintenance guidance: We will provide a detailed "Equipment Maintenance Manual" and a list of recommended consumables. Our team can also conduct online training for your maintenance staff to help build a regular maintenance system.
3). Technical troubleshooting:
a. Remote support: If there are software or program issues, our engineers can provide remote debugging within 2 hours of your request.
b. On-site support: For major mechanical failures, we will arrange engineers to your factory within 5-10 working days (subject to visa approval) – the buyer only needs to cover travel. accommodation and meal costs.
4). Warranty period: All equipment comes with a 12-month warranty (from the date of successful commissioning). During this period, we will repair or replace faulty components (non-human damage) free of charge.