Innovative Energy-Saving 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 enamel line for water heater tanks, covering pre-treatment to quality 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 optimal enamel frit melting, control accuracy ±2℃, uniformity ≤±5℃.

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

Physical Pre-treatment: Shot blasting. Manual/automatic changeover for different models.

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

Capacity & Energy Consumption:

Capacity: 80-300 pieces/hour (50L tank), supports 24/7 operation.

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

Power Supply & Environment:

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

Operating Environment:

Temperature 5-40℃, humidity ≤85%, suitable for industrial workshops.

Certifications & Qualifications:

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

Warranty Period: 1-year full warranty, lifelong technical support and spare parts.

Product Advantages

1. Industry-first, flexible production with over ten patents for diverse water heater models. Utilizing TIMS's patented technologies:

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

(2) Robot Automatic Concentric Gripper for Mixed Water Heater Tank Production (CN ZL 2015 1 0350390.X);

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

(4) Synchronous Tracking Auto Positioning & Centering Device for Water Heater Tanks/Tank Hanging Baskets (CN ZL 2015 1 0348019.X);

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

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

and over ten other patents.

2. High capacity and efficiency:
The automated and flexible "one-piece flow" production line achieves high efficiency and large capacity, up to 350 units/hr.

3.Product stability and low failure rate:
TIMS's Water Heater Enamel Line represents over 20 years of R&D and innovation. It features an innovative structural design, premium configuration with imported European parts, low failure rate, robust self-diagnostics, and easy maintenance.

4.Dual patent energy-saving technologies, reducing both energy consumption and operating Costs:
TIMS's enamel firing furnace uses high-temp insulation wool, nano thermal materials, and a waste heat recovery system, enhanced by TIMS's patented technologies.Powder Coating Line Exhaust Gas Waste Heat Utilization System (CN ZL 202222652871.4);

An 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 a 40% reduction in heat loss vs. traditional equipment, cutting enamel line energy consumption by 40%.

5. Efficient and environmental process, meeting stringent global standards:

The pre-treatment includes an integrated waste gas treatment system and can have a wastewater treatment system. Post-treatment, wastewater COD is ≤80mg/L (well below GB 8978-1996 limit); the dry powder booth has a high-efficiency filter dust collector (dust removal rate ≥99.5%). It complies with EU EEA and Chinese GB 13271-2014 standards, ideal for export-focused firms.

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

The automatic water heater tank enameling machine uses TIMS's patented tech (Close-loop Rapid Slurry Return Device, CN ZL 201510348316.4) for fast, closed-loop slurry recycling, conserving slurry and ensuring consistent pickup. The automated rotating and tilting enameling equipment, for water heater tanks, uses servo motors for uniform tank rotation (speed adjustable for 300-600mm). With a precise slurry delivery pump, it ensures even enamel application on inner and outer 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:

Using patented tech (Enamel Furnace with Protective Measures, Patent No.: CN ZL 202022244902.3), the enamel furnace is designed to protect heating elements, preventing damage from potential workpiece drops.

Product composition

1. Chemical treatment:

This involves degreasing, rinsing, organic acid cleaning, two-stage rinsing, and drying in a tunnel (hot air circulation type with air heat recovery). All tanks, made from PP material (resistant to acid and alkali), feature online level/concentration monitoring and an automatic chemical dosing system.

2. Physical treatment:

Removes rust, oil, and oxide layers from the tank via shot blasting.

Enamel preparation module: The High-Speed Mixing Tank (500-800rpm, temperature control jacket) is for glaze milling/mixing, aging, and slurry filtration (100-mesh filter). The Constant Temperature Storage Tank (25±2°C with agitator) delivers slurry for real-time use.

3. Enameling module:

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

Wet enamel drying module: Zoned drying at 30-120°C ensures gradual moisture removal, preventing coating cracks.

4. Firing and curing module:

Includes a continuous gas radiant tube or electric heating enamel furnace, with cold-hot workpiece exchange zone (280-350°C), firing zone (750~850°C), waste heat recovery heat exchanger (preheats combustion air), overhead conveyor outside the furnace, and heat sealing system. Uses high-temp resistant hangers.

Product composition

1. Conveyance and positioning module:

Standard or power/free conveyor (dual-track, 200kg/unit), servo-driven lift 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: PLC control cabinet (12-inch touch screen, stores 100 recipes) with MES data unit (real-time upload of capacity, qualification rate, energy data), plus offline quality inspection station (adhesion tester, coating gauge, salt spray test). Integrate with visual defect detection (pinholes ≥0.2mm, scratches).

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