About Kingdaflex

Kingdaflex hydraulic hose factory 1 webp

Empowering Global Industry with Precision Hydraulics

Precision hydraulics are empowering global industry.
Since its foundation in 2003, Kingdaflex Industrial has evolved from a local rubber workshop into a world-class manufacturer of hydraulic and industrial hoses. Our company is strategically located in Qingdao, a major logistics hub in China. This strategic location allows us to leverage superior supply chain advantages, enabling us to deliver premium hoses to over 50 countries.

At our company, we specialise in the provision of complete fluid transmission solutions, in addition to the sale of hoses. Our products are engineered to perform in the harshest environments, whether that is high-pressure spiral hoses for mining or precision industrial lines for construction. Kingdaflex is committed to OEM precision and technological innovation, and has become the trusted backend factory for major global brands.

20+
Years
Industry Experience
20+
Production Lines
50+
Export Countries
2,000+
Satisfied Clients

Advanced Hydraulic Hose Manufacturing Facility

Our manufacturing power is the backbone of your supply chain. Covering an area of 30,000 square meters, our facility integrates advanced automation with strict quality management.

  • Production Lines: 20+ advanced lines, including 16 automatic high-speed braiders and 4 heavy-duty spiral machines.
  • R&D Strength: Collaboration with Qingdao University of Science & Technology for advanced rubber compound development.
  • Quality Assurance: 100% inspection rate. Every batch undergoes proof pressure, dimension, and impulse testing before leaving the floor.

Factory & Manufacturing Capability

Fully automated rubber processing and refining production line

Rubber Compound Mixing

Raw rubber, fillers, and additives are precisely formulated and mixed in-house to achieve required physical properties, chemical resistance, and performance consistency for different hose applications.

Outer rubber extrusion machine

Extrusion

The mixed rubber compound is extruded into uniform inner or outer tube layers, ensuring accurate wall thickness, smooth surfaces, and consistent dimensional control throughout the hose length.

Hydraulic hose reinforcement layer weaving machine

Braiding and Spiral Reinforcement

High-tensile textile or steel wire reinforcements are braided or spiraled onto the hose to provide the required pressure resistance, flexibility, and structural strength.

Vulcanization

Vulcanization

Reinforced hoses undergo controlled vulcanization to cure the rubber, permanently bonding layers together and enhancing temperature resistance, durability, and long-term mechanical stability.

Assembly

Assembly

Hoses are assembled with selected fittings or couplings according to customer specifications, followed by inspection to ensure proper alignment, sealing performance, and application compatibility.

hydraulic hose packaging

Packaging

Finished hoses are cut to specified lengths using precision equipment, ensuring clean ends, dimensional accuracy, and readiness for fitting assembly or direct shipment.

Quality Control & Testing

Quality is built into our manufacturing process, not added at the end.

Kingdaflex implements inspection and testing procedures at critical production stages, including dimensional checks, pressure testing, and visual inspection. Our quality system is designed to ensure that every hose meets specified performance requirements before delivery.

Products are manufactured in compliance with international standards and customer specifications, supporting long-term reliability in demanding applications.

Hydraulic hose Quality Control & Testing

Certifications & Global Compliance

Our manufacturing facilities and products comply with internationally recognized quality and safety standards.

Depending on product type and application, Kingdaflex hoses are produced in accordance with ISO, CE, API, MSHA, CSA, and other relevant industry requirements. Third-party inspection and testing reports are available upon request to support customer qualification and audits.

Our Culture

Our Mission

To empower global industries by providing safe, durable, and high-performance power transmission solutions.

Our Vision

To become the world’s most reliable OEM partner in the hydraulic hose industry through continuous innovation.

Our Values

“Customer First”, “Quality”, and “Respect For The Individual” – tie the company together.

Eco-friendly

We care about the enviromental protection, to save energy during our products manufacturing process.

Michael Zhang Kingdaflex CEO 2 webp

Connecting Power to Performance

At Kingdaflex, we believe industrial progress depends on the integrity of the smallest details. For over 20 years, our mission has transcended manufacturing; we engineer the lifelines that drive global machinery.

A hydraulic hose is more than a component—it is the pulse of your operation. By connecting power to performance, we ensure that every OEM and distributor we serve operates with absolute precision and zero compromise. Our legacy is built on reliability, and our future is focused on your continuity. I invite you to partner with us as we power the next generation of industrial excellence.

Michael Zhang, Founder & CEO

Industry Insights & Technical Resources

Ready to Visit Our Factory?

Whether you want a virtual tour or plan to visit our factory, we welcome you. See our production quality with your own eyes.