Hwashi Automatic Seam Welder with High-Strength Joints, Adjustable Welding Wheel Speed, and 360° Rotational Capability for Kitchen Utensils
Price:
US $10,000-30,000 / Set
MOQ:
1 set
Delivery Time:
45 days
Brand:
HWASHI
Product Description
Hwashi Automatic Seam Welder with High-Strength Joints, Adjustable Welding Wheel Speed, and 360° Rotational Capability for Kitchen Utensils
The Hwashi Stainless Steel Kitchen Utensil Sink Bowl Seam Welding Machine is a specialized automated solution engineered to deliver flawless, high-strength seams for stainless steel sink bowls—critical components in kitchen utensil manufacturing. Designed to address the unique challenges of welding thin-gauge stainless steel (0.8-2mm thickness), this machine combines precision engineering with intelligent control to redefine seam quality and production efficiency.
Application
At its core is the advanced seam welding technology, which utilizes high-frequency resistance welding (HFW) paired with a servo-driven welding wheel system. This ensures uniform heat distribution along the sink bowl's curved or straight seams, creating airtight, leakproof joints with a smooth, post-weld surface finish (Ra ≤ 0.8μm)—eliminating the need for time-consuming manual grinding or polishing. The machine's adaptive current control adjusts welding parameters in real time based on material variations (304/316 stainless steel) and seam length, guaranteeing consistent weld strength (shear strength ≥ 300MPa) that meets food-grade safety standards (FDA, LFGB).
Tailored for sink bowl geometries, the machine features a customizable clamping fixture with 360° rotational capability, accommodating various sink designs—from single-bowl to double-bowl configurations, deep or shallow profiles, and even sinks with integrated drain grooves. The fixture's precision positioning (±0.05mm repeatability) ensures seamless alignment of sink components before welding, minimizing gaps that could lead to weak points or leakage.
Technical Specifications
| Model | WL-FS-AC75K | WL-FS-MF75K | WL-FS-MF100K |
|---|---|---|---|
| Input Voltage | Three-phase 380V±10% 50Hz | Three-phase 380V±10% 50Hz | |
| Input Power | 75KVA | 100KVA | |
| Rated Input Current | 115A | 150A | |
| Rated Duty Cycle Rate | 50% | 50% | |
| Max Secondary Floating Voltage | DC9.75V | DC11.6V | |
| Secondary Max Short Circuit Current | 26500A | 28000A | |
| Welding Transformer Insulation Grade | Grade F | Grade F | |
| Program Segment Time Adjustment Range | 0~9999SEC | 0~9999SEC | |
| Controller Heat Adjustment Range | 15%~99% | 15%~99% | |
| Upper Welding Wheel Diameter | 280mm | ||
| Lower Welding Wheel Diameter | 40mm | ||
| Welding Wheel Width | 3mm | ||
| Welding Wheel Rotating Speed | 800-4000mm/min (adjustable) | ||
| Upper Welding Wheel Throat Depth Distance | 400mm | ||
| Lower Welding Wheel Throat Depth Distance | 400mm | ||
| Upper and Lower Welding Wheel Distance | 50mm | ||
| Air Pressure | 0.6MPa | ||
| Gas Consumption | 10m³/h | ||
| Water Pressure | 0.2Mpa | ||
| Water Temperature | 10-20℃ | ||
| Cooling Water Consumption | 800L/H | ||
Key Features
- Intelligent microcomputer single piece controller with pure digital setting, online computer programming, LED digital display, stable performance, and convenient online program modification
- Intelligent microcomputer control welding system with automatic current compensation during voltage fluctuations to ensure welding stability
- Digital circuit control with components from world-renowned manufacturers for long-term operational stability
- High-precision components from West Germany, IXYS and IR silicon controlled from United States for high stability current control
- Advanced mercury conductive technology for transmission tile axis with excellent performance in transmission and conductivity
- Japanese alloy copper material for welding roll wheel with high rigidity and good conductivity
- Japanese high-purity silicon steel sheet transformer with excellent magnetic and electrical conductivity, low electricity consumption, and stable power
- Mosaic connection for welding mold and machine assembly for easy assembly and disassembly
- Available with AC pulse, secondary rectifying, and three-phase medium frequency welding power sources
Technology Overview
Seam welding is a form of permanent metal welding. When welding, welding pressure between two welding wheels spins the welding wheel, which drives the weldment and electricity. The welding current creates local heating, forming successively overlapping welds to create continuous weld joints and achieve permanent welding. Applications include casings such as automobile and motorcycle fuel tanks; barrels such as cans; and sheet-formed artifacts such as wheels, mufflers, radiators, and sink bowls.
The machine adopts 75KVA/100K medium frequency inverter DC power source with a 50% duty cycle rate while welding output current is 26KA. The three-phase power supply, through rectified by a special inverter, is converted into 1000Hz AC voltage and then transmitted to a medium frequency transformer so the current is rectified to supply DC welding current.
Competitive Advantages
- HWASHI is the leading brand in resistance welding industry in China for 20 years; Factory direct sale with competitive pricing
- Customized Service: Design and develop welding machines according to your specific requirements
- Genuine Product with Excellent Quality: 12-month warranty, ISO9001:2000 and China Compulsory Certification compliant, 8-10 year service life, 100% pre-delivery testing
- After Sales Service and Technical Assistance: 24-hour technical support by email with professional consulting team
- Quick Delivery: Just-in-time delivery service
- Prompt Response to Customers: Customer satisfaction is our primary goal

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Company
GUANGDONG HWASHI TECHNOLOGY INC.
Location
Room 501, Xuyuan Building, No. 5003 Longgang Road, Shenzhen, Guangdong, China 518000
Contact Person
Kary Hou