Guangdong Hwashi Technology inc.
| Payment Terms | L/C,T/T |
| Supply Ability | 50 sets per month |
| Delivery Time | 7-30 working days after received your payment |
| Packaging Details | sea wooden package |
| Application | Welding For Kitchen Sink |
| Rated Capacity | 160kVA |
| Forming Time | 1min |
| Single Gross Weight | 65.000kg |
| Input Power | Single-Phase 380V10% 50Hz |
| Usage | Sink Welding |
| Consumption of Cooling Water | 1000L/H |
| Standard | CE/CCC/ISO |
| Brand Name | HWASHI |
| Certification | CE/CCC/ISO |
| Place of Origin | CE/CCC/ISO |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 50 sets per month |
| Delivery Time | 7-30 working days after received your payment | Packaging Details | sea wooden package |
| Application | Welding For Kitchen Sink | Rated Capacity | 160kVA |
| Forming Time | 1min | Single Gross Weight | 65.000kg |
| Input Power | Single-Phase 380V10% 50Hz | Usage | Sink Welding |
| Consumption of Cooling Water | 1000L/H | Standard | CE/CCC/ISO |
| Brand Name | HWASHI | Certification | CE/CCC/ISO |
| Place of Origin | CE/CCC/ISO |
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.
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.
| Application | Details |
|---|---|
| Kitchen Sink Seam Welding | Single bowl, double bowl, triple bowl — square, rectangular, round |
| Handmade Sink R-Corner Welding | Precise corner welding for premium handmade sinks |
| Stainless Steel Basin Welding | Wash basins, prep sinks, utility sinks |
| Commercial Kitchen Sinks | Large-format sinks for restaurants, hotels, hospitals |
| Stainless Steel Container Welding | Sealed containers, tanks, housings requiring watertight seams |
✅ Stainless Steel 304 / 201 (primary)
✅ Stainless Steel 316 / 430
✅ Low-carbon steel / Galvanized steel (thin gauge)
| Model | WL-FS-AC75K | WL-FS-MF75K | WL-FS-MF100K |
|---|---|---|---|
| Input Voltage | Three-phase 380V±10% 50Hz | Three-phase 380V±10% 50Hz | Three-phase 380V±10% 50Hz |
| Input Power | 75KVA | 75KVA | 100KVA |
| Rated Input Current | 115A | 115A | 150A |
| Rated Duty Cycle Rate | 50% | 50% | 50% |
| Max Secondary Floating Voltage | DC9.75V | DC9.75V | DC11.6V |
| Secondary Max Short Circuit Current | 26500A | 26500A | 28000A |
| Welding Transformer Insulation Grade | Grade F | Grade F | Grade F |
| Program Segment Time Adjustment Range | 0～9999SEC | 0～9999SEC | 0～9999SEC |
| Controller Heat Adjustment Range | 15%～99% | 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 | ||
Seam welding is a form of permanent metal welding. When welding, welding pressure is applied between two welding wheels that spin and drive the weldment with electricity. The welding current creates local heating, forming successively overlapping welds to create a continuous joint 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, etc.
The machine adopts 75KVA/100K medium frequency inverter DC power source. The duty cycle rate is 50% 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.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2001
Total Annual:
15000000-20000000
Employee Number:
180~200
Ecer Certification：
Verified Supplier
ABOUT US Hwashi company is a powerhouse in the world of automatic resistance welding equipment and industrial robots. We go beyond the conventional boundaries of welding machine manufacturer. We pride ourselves on being a comprehensive service provider, o... ABOUT US Hwashi company is a powerhouse in the world of automatic resistance welding equipment and industrial robots. We go beyond the conventional boundaries of welding machine manufacturer. We pride ourselves on being a comprehensive service provider, o...
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