Sany SY135 Amphibious Excavator with side pontoon and long reach boom

Defeng Mechanical Manufacturing Limited Established in 2019, Although our company was established in 2019, but our team has been in this industry for over 15 years! Defeng Mechanical Manufacturing Limited is a dynamic China-based manufacturer and trader specializing in high-quality, custom-engineered components for heavy machinery. Headquartered in the Guangdong Province, we combine advanced production capabilities with global business expertise to serve clients across construction, mining, and marine industries worldwide.

Core Products & Expertise

1. Custom Excavator Arms & Buckets: Durable, high-performance components designed for demanding terrains and workloads.
2. Amphibious Excavator Pontoons: Innovative floating systems for wetland, riverine, and coastal operations.
3. OEM/ODM Services: Collaborative design and manufacturing for specialized machinery parts
   • Dedicated R&D team for product optimization and customization.
   • Environmentally conscious designs for sustainable operations.
   • Global Vision
     Strategically located in Guangdong—China’s manufacturing heartland—we leverage local supply chain advantages to offer competitive pricing and timely delivery. Our hybrid model of factory-direct production and professional trade services 

4. Why Choose Us?

   ✅ Advanced Manufacturing Base

   • Production Team: 50-100 skilled technicians and engineers with decade-long experience.
   • Capabilities: Cutting-edge CNC machining, welding, and quality testing systems.

   ✅ Global Business Support

   • Guangzhou Office: 20+ multilingual sales and service professionals ensuring seamless communication.
   • Export Experience: Proven expertise in serving clients across Europe, Southeast Asia, Africa, and the Americas.

   ✅ Quality Commitment

   • Strict adherence to international standards (ISO 9001-certified processes).
   • Robust QC protocols with 100% pre-shipment inspection.
   • Premium materials (e.g., Q690 Q355B Q345 steel, corrosion-resistant coatings).

   ✅ Innovation-Driven