The HFDB-50 Projection Spot Welding Machine is a compact yet powerful bench-top welding system. Utilizing advanced medium frequency inverter DC technology, it ensures stable welding with minimal spatter, making it ideal for high-quality welding of precision components like carbon brushes, low-voltage electrical parts, and galvanized sheets. One machine meets multiple welding needs.

Core Features
Each parameter is designed not only for performance, but also to help you reduce rework, cut costs, and pass international quality audits.
Compact Size, Powerful Performance
Bench-top design occupies less than 0.5m², yet reliably welds a variety of metals.
Precision Welding, Minimal Spatter
MFDC control concentrates heat input, reducing welding spatter by over 90% for clean, beautiful weld spots.
Energy Efficient, Cost-Saving
Consumes up to 30% less energy than traditional AC welders, significantly reducing long-term operational costs.
Wide Applicability, Versatile Machine
Excellently welds various materials including carbon brushes, galvanized steel, copper, and aluminum.
Welding Effect Display




Application Industries
Automotive parts
Metal hardware
Motor manufacturing
Low voltage electrical appliances
Our Partners
We have served over 3,300 customers worldwide, and our long-term partners include Tesla, BYD, and Siemens.
Over 40+ Fortune 500 companies.










Company Strength
40+ Patents and 2 National Software Copyrights
10,000㎡ Factory with 100+ skilled employees










💡 Why Choose Our Machine?
Expertise & Focus: Haifei Intelligent Equipment specializes in the R&D and manufacturing of resistance welding technology.
Reliable Quality: Core components from renowned brands ensure long-term stability.
Complete Service: We provide one-stop service from selection, installation to after-sales support.
Intelligent Welding Process Monitoring System Data System



Technical Support And Training
We provide professional, considerate and comprehensive pre-sales, in-sales and after-sales services
to ensure you have no worries in your production!
Customized Solutions
Provide personalized spot welding machine configuration solutions based on customer needs to ensure that the equipment meets specific production requirements.
On Site Technical Support
Dispatch professional technical personnel to the customer's site for equipment installation, debugging, and troubleshooting to ensure smooth production.
Operator Training
Provide operator training services to customers, including equipment usage, maintenance, and simple troubleshooting.
Service Commitments
One-Stop Service
Complete support including installation, commissioning, training, and maintenance – all in one solution.
Warranty Coverage
One-year full machine warranty, plus two years for core components such as controllers and transformers.
Comprehensive Training
Free training sessions provided, with optional on-site training available.
Lifetime Software Upgrades
Enjoy lifetime access to free software updates.
Free Technical Support
Unlimited lifetime technical consultation services at no extra cost.
Maintenance Guarantee
Free maintenance during the warranty period, with lifetime service support available.

Frequently Asked Questions
What materials is Projection Spot Welding Machine best suited for?
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It is ideally suited for common metals like carbon brushes, galvanized steel, low carbon steel, copper, and aluminum.
Is the Projection Spot Welding Machine complicated to operate? Does it require a professional welder?
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It features user-friendly microcomputer control. Regular operators can learn to use it quickly with brief training.
What are the main advantages compared to traditional AC spot welders?
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Key advantages include energy saving (up to 30%), minimal spatter, high and consistent weld quality, and low grid impact.
Can it be customized for our specific products?
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Yes. We can provide customized welding solutions based on your specific components and production line requirements.
How is after-sales service guaranteed?
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We provide comprehensive after-sales support, including phone/online technical support, rapid spare parts supply.
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