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Siwei Power – Reliable Diesel Power Solutions

High-quality air-cooled diesel engines, generator sets, welding machines, and water pumps. Designed for durability, efficiency, and global compliance.

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About Siwei Power

Nantong Siwei Power Machinery Technology Co., Ltd. was established in 2020 and is located in Nantong City, Jiangsu Province, near Shanghai. We are a company dedicated to providing high-quality air-cooled diesel power products and solutions.

Our flagship products include specially designed high-durability single-cylinder diesel engines and cost-effective V-twin diesel engines, covering an output power range from 3 to 30hp. We hold CE and EU Stage V emission certificates, ensuring compliance with international standards.

Our products have earned the trust and support of customers across Europe, Southeast Asia, the Middle East, Africa, and South America.

Factory Engine Testing Assembly

Global Certifications & Standards

CE Certification

CE Certified

EU Stage V

EU Stage V

Patent Certified

R&D Center

Our Main Products

SW294FT Engine

SW294FT Turbo Engine

Air-cooled inline two-cylinder diesel engine. High torque, low fuel consumption, ideal for industrial applications.

  • Power: 18–30hp
  • Cooling: Air-cooled
  • Certification: CE, EU Stage V
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SW2V88F Engine

SW2V88F V-Twin Engine

Compact V-twin air-cooled diesel engine. Balanced performance for agricultural and construction machinery.

  • Power: 12–18hp
  • Cooling: Air-cooled
  • Design: V-twin cylinder
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SW2V95F Engine

SW2V95F V-Twin Engine

High-efficiency V-twin diesel engine with enhanced cooling and low noise operation.

  • Power: 15–22hp
  • Cooling: Air-cooled
  • Low vibration design
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SW170F Engine

SW170F Single Cylinder

Durable single-cylinder air-cooled diesel engine. Ideal for small machinery and portable equipment.

  • Power: 3–6hp
  • Compact and lightweight
  • Easy maintenance
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G100 Generator

G100 Open Type Generator

Robust open-frame diesel generator set. Reliable power source for construction and backup needs.

  • Output: 8–10kVA
  • Fuel: Diesel
  • Portable design
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G70-S4 Silent Generator

G70-S4 Silent Generator

Low-noise silent diesel generator. Perfect for residential, commercial, and sensitive environments.

  • Output: 5–7kVA
  • Noise Level: <70dB
  • Soundproof canopy
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G65-W Welding Generator

G65-W Diesel Welding Generator

Dual-function unit: power generation and arc welding. Ideal for field operations.

  • Welding Current: 60–180A
  • Generator Output: 5.5kVA
  • Portable and rugged
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P80FF Fire Pump

P80FF Fire-Fighting Diesel Pump

High-pressure diesel water pump designed for emergency fire suppression and industrial use.

  • Flow Rate: 80m³/h
  • Pressure: 10 bar
  • Self-priming capability
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Why Choose Siwei Power?

Certified Quality

CE and EU Stage V certified engines and generators. Built to meet international safety and emission standards.

High Efficiency

Optimized combustion and low fuel consumption. Deliver maximum power with minimal operating costs.

Durable Design

Engineered for longevity. Resistant to wear, heat, and harsh environments. Built to last.

Global Support

Trusted by customers in Europe, Southeast Asia, the Middle East, Africa, and South America. Local support available.

3+

Years of Innovation

30+

Countries Served

100K+

Units Sold

10+

Patents Held

Frequently Asked Questions

What types of diesel engines do you manufacture?

We specialize in air-cooled single-cylinder and V-twin diesel engines ranging from 3 to 30hp. Our engines are designed for durability and efficiency in agricultural, industrial, and construction applications.

Are your generators CE and EU Stage V compliant?

Yes, all our diesel engines and generator sets are CE certified and meet EU Stage V emission standards, ensuring environmental compliance and global market access.

Do you offer silent generator models?

Yes, we offer a range of silent diesel generator sets (e.g., G50-S1, G70-S4) with soundproof canopies that reduce noise levels below 70dB, suitable for residential and commercial use.

Can I use your diesel welding generator for both power and welding?

Absolutely. Our diesel welding generators (e.g., G50-W, G65-W) provide both electrical power output and arc welding capability, making them ideal for remote job sites and field repairs.

Where is Siwei Power located?

We are based in Nantong City, Jiangsu Province, China, near Shanghai. Our strategic location supports efficient manufacturing and global logistics.

Get in Touch

For inquiries, quotes, or technical support, please visit our official website to contact us directly.

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