SinoWelder - Professional Welding & Cutting Equipment Manufacturer

About SinoWelder

“LangNing” is a manufacturer of welding machines with over 30 years of experience in the industry. We specialize in designing lightweight, durable, and high-efficiency welding and cutting equipment for industrial and professional use.

Our commitment to innovation, quality control, and supply chain optimization allows us to deliver premium welding solutions at competitive prices. By integrating advanced inverter technologies such as IGBT and MOS, we ensure reliability and performance across all our product lines.

With strong import and export credit history and partnerships with global logistics providers, we serve customers in over 80 countries. Our mission is to empower metalworking professionals with tools that combine power, portability, and precision.

Learn More About Us

Product Categories

Explore our full range of professional welding and cutting machines

MMA Welding

Manual Metal Arc (Stick) welding machines for reliable arc performance in tough environments.

View MMA Models →

MIG/MAG Welding

High-efficiency wire feed welders ideal for continuous welding on steel, stainless, and aluminum.

View MIG/MAG Models →

TIG Welding

Precision Tungsten Inert Gas welding for clean, high-quality welds on thin and sensitive materials.

View TIG Models →

Plasma Cutting (CUT)

Fast and accurate plasma cutters for clean metal cutting up to 25mm thickness.

View CUT Models →

Our Hot Products

Discover our best-selling inverter-based welding and cutting machines engineered for performance and durability.

LGK-80

Plasma Cutter (CUT)

• Inverter IGBT Technology
• 80A Cutting Current
• Max Cut Thickness: 25mm
• Lightweight & Portable

View Details

TIG-200A

TIG Welder

• Inverter MOS Technology
• 200A Output Current
• AC/DC Capable
• High Arc Stability

View Details

NBC-250

MIG/MAG Welder

• Inverter IGBT Technology
• 250A Output Current
• Dual Voltage (220V/380V)
• Smooth Wire Feeding

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NBC-228

MIG/MAG Welder

• Inverter IGBT Technology
• 228A Output Current
• Compact & Lightweight
• Ideal for Workshop Use

View Details

ZX7-250B

MMA Welder

• Inverter IGBT Technology
• 250A Output Current
• Overload Protection
• Stable Arc Performance

View Details

ZX7-225

MMA Welder

• Inverter IGBT Technology
• 225A Output Current
• Energy Efficient
• Durable Metal Housing

View Details

TIG-160A

TIG Welder

• Inverter MOS Technology
• 160A Output Current
• HF Start & Lift Arc
• Low Heat Input

View Details

NBC-200

MIG/MAG Welder

• Inverter IGBT Technology
• 200A Output Current
• 4-Wheel Drive System
• Anti-Stick Protection

View Details

Why Choose SinoWelder?

Engineered for performance, reliability, and value — trusted by professionals across industries.

Premium Quality

Rigorous quality control and 30+ years of manufacturing expertise ensure every unit meets international performance standards.

High Efficiency

Advanced IGBT and MOS inverter technology delivers stable arcs, reduced energy loss, and faster welding cycles.

Cost Effective

Optimized supply chain and direct manufacturing reduce procurement costs without compromising quality.

Global Support

Strong export credit and logistics partnerships enable fast delivery and reliable after-sales service worldwide.

Durable Design

Robust metal enclosures, thermal protection, and dust-resistant construction ensure long service life.

Customer Focused

Multilingual support, technical guidance, and responsive communication to meet your business needs.

30+

Years Experience

80+

Countries Served

500K+

Units Sold

100%

Quality Tested

Frequently Asked Questions

Get answers to common questions about our welding and cutting equipment.

What types of welding machines do you manufacture?

We specialize in four main categories: MMA (stick) welders, MIG/MAG (wire feed) welders, TIG (precision) welders, and plasma cutting machines (CUT). All models use advanced inverter technology for efficiency and portability.

Are your machines suitable for industrial use?

Yes, all SinoWelder products are designed for professional and industrial environments. Our machines undergo rigorous testing to ensure durability, consistent performance, and safety under heavy usage.

Do you offer OEM/ODM services?

Yes, we welcome OEM and ODM collaborations. With over 30 years of manufacturing experience, we can customize branding, specifications, and packaging based on your requirements.

What is the warranty period for your machines?

We offer a standard 12-month warranty on all welding and cutting equipment. Extended warranty options are available upon request for bulk orders.

How can I get technical support?

Our technical team is available via email, WhatsApp, Skype, and phone. We provide user manuals, troubleshooting guides, and video tutorials to support your operations.

Get in Touch

Have questions about our products or need a quote? Contact our team today.

Contact Information

Email: hjbwelding@163.com
Mobile/WhatsApp: +86 173 3001 2004
Phone: +86 311 8781 3224
Skype: hjbwelding@163.com
Address: Guangtian Building, 31 Jianhuabei Street, Shijiazhuang, China

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