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Engine-Driven
Welders & Generators

Premium diesel and gasoline-powered welding generators built for industrial durability, pipeline construction, and remote field operations.

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About Chongqing Lianwai Technology

Chongqing Lianwai Technology Co., Ltd. is a professional manufacturer and exporter of engine-driven welders, generator sets, motor tricycles, tillers, and more. With a strong focus on innovation and quality, we serve clients across industries requiring reliable, high-performance welding and power solutions.

Our products are engineered for extreme conditions — from pipeline construction to remote infrastructure projects — ensuring durability, efficiency, and safety in every weld.

Industrial Focus

Built for heavy-duty applications

Quality Certified

RoHS, ISO, and strict QC systems

Engine Driven Welder in operation
20+ Years Experience

Why Choose Us?

We combine engineering excellence with global reliability.

High Quality

Strict quality control system with professional test labs. RoHS compliant and supplier-verified.

Advanced Manufacturing

Automated production lines and precision engineering for consistent performance.

R&D Development

In-house design team to develop custom solutions tailored to your needs.

100% Service

Custom packaging, FOB/CIF/DDP shipping, and full after-sales support.

Our Products

Explore our range of engine-driven welders, portable generators, digital inverters, and laser welding systems designed for industrial and field use.

GENWELD 12500CSD Diesel Generator

GENWELD 12500CSD

Digital Voltage Regulating Diesel Generator Set

  • 12.5kVA Prime Power
  • Digital AVR Control
  • Diesel Engine Driven
Get Best Price
Portable 2.0kW Digital Inverter Generator

GENWELD 2.0kW Inverter

Intelligent Digital Inverter Generator

  • 2.0kW Output
  • 4L Fuel Tank
  • Pure Sine Wave Output
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H400 400A Diesel Engine Driven Welder

H400 400A Multi-Process

Diesel Engine Driven Welder Generator

  • 400A Output
  • Multi-Process (MMA/TIG)
  • Diesel Powered
Get Best Price
130A Permanent Magnet Welding Generator

130A Permanent Magnet

Portable Welding Generator

  • 130A Welding Output
  • 0.8kW AC240V Auxiliary Power
  • Lightweight & Portable
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T250AR DC Argon Arc Welding Machine

T250AR DC Argon Arc

Inverter TIG/MMA Welder

  • 250A Output
  • TIG & MMA Capable
  • DC Inverter Technology
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GENWELD LWG-5000i 4KW Gasoline Inverter

GENWELD LWG-5000i

4KW Gasoline Inverter Generator

  • 4KW Pure Sine Wave
  • AC/DC Car Charger
  • Portable & Quiet
Get Best Price
WD600 600A Diesel Engine Driven Arc Welder

WD600 600A Arc Welder

Diesel Engine Driven with 36kW Power

  • 600A Welding Output
  • 36kW Prime Power
  • 70L Fuel Capacity
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LWC-270/350/500/630 Gas Shielded Welder

GENWELD LWC Series

Gas Shielded Welding Machines

  • Models: 270A to 630A
  • MIG/MAG Capable
  • Digital Control Interface
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Key Features

Engineered for performance, durability, and safety.

High Output

From 130A to 800A welding current with auxiliary power up to 40kW.

Fuel Efficient

Optimized diesel and gasoline engines for extended runtime and low consumption.

Silent Operation

Inverter silent models with noise levels as low as 65dB.

Digital Control

Smart interfaces with load protection, diagnostics, and digital regulation.

20+
Years Experience
50+
Countries Served
1000+
Units Shipped Annually
99.2%
Customer Satisfaction

Frequently Asked Questions

Find answers to common inquiries about our products.

What types of fuel do your engine-driven welders use?

Our welders are available in diesel, gasoline, and petrol variants, depending on the model and application.

Can I use these welders for pipeline construction?

Yes, many of our models like the 350A and 800A diesel welders are specifically designed for oil and gas pipeline welding with high auxiliary power output.

Do you offer custom solutions?

Yes, our in-house R&D team can develop customized welding and power solutions based on your technical requirements.

What certifications do your products have?

Our products comply with RoHS standards and undergo strict quality control testing in our professional lab.

Get in Touch

For quotes, technical support, or custom product development, contact us today.

Contact: Mr. David

Email: [email protected]

Phone: +86-13696424316

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