QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.

We provide full-service OEM/ODM solutions, enabling brands to focus on marketing while we handle production or design-to-delivery.

OEM Services:
Strictly follow client specifications for precision manufacturing
Scalable production from prototypes to mass volumes

ODM Services:
In-house R&D designs customizable products
Fast market entry with ready-to-brand solutions

Why Us?
Quality: ISO-certified processes, rigorous testing
Flexibility: Support both exclusive (OEM) and shared-design (ODM) models

Workshop Insights: Where Innovation Meets Craftsmanship

Our experienced engineers and workers design and manufacture qualified airbags, fenders, plugs, and buoys.
We create outstanding products always. We use high-quality rubber raw materials and synthetic-tire-cord layers.
The advanced production technology and management system can help control cost effectively, offering the client the best price.

01 - Global Sourcing for Uncompromising Quality

02 - Production and Processing Workshop

03 - Vulcanization and Polyurethane Spraying

04 - Rigorous Testing and Inspection - Classification Society Inspection, Burst Inspection, Compression Test

05 - Rigorous Packaging & Reliable Shipping for Optimal Delivery

Meet the Team - Versatile Driven Innovation

Driven by a passion for progress, our R&D experts turn challenges into industry-leading ship-launching, fendering and buoyancy solutions. Our dedicated R&D team relentlessly pursues innovation, ensuring our products stay ahead of your evolving needs.

Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys.

Our chief engineer has nearly two decades of industry experience. He has been engaged in the marine fender and rubber airbag industry since 2006.
In 2011, our parent company was established. It is engaged in the industry of buoyancy assistance and salvage.
From 2011 to 2021, we have been engaged in the production and sales of pneumatic rubber fenders and rubber airbags under the BUODER brand.
In 2021, with the support of a new round of financing, Doowin Marine brand company was formally established. It specializes in the production and sales of pneumatic rubber fenders, rubber airbags, and marine buoys.
In 2022, the company began the research and development and production of deep-sea buoyancy materials.
In 2023, the company expanded its production scale and improved its production technology for rubber airbags.
In 2024, the company's production capacity continued to increase. The maximum diameter of pneumatic rubber fender reached 4.8 meters.

Doowin Marine: Pioneering Airbag Engineering Solutions Worldwide‌

Industry Leadership‌
As the global pioneer in specialized airbag engineering, Doowin Marine delivers cutting-edge solutions for vessel launching, hauling, heavy load transportation, and structural relocation. Our exclusive dual certification from Lloyd’s Register (LR) and China Classification Society (CCS) underscores our technical excellence, supported by a proven history of serving prestigious international clients.

Comprehensive Project Services‌
We offer end-to-end project management for:

• Marine Operations‌: Successfully executing 100+ vessel launches and 50+ dry dockings with a flawless safety record.
• Diverse Launch Expertise‌: Handling everything from standard barge deployments to complex catamaran launches under challenging conditions (low tides, poor slipways, or inclement weather).
• Structural Solutions‌: Adapting airbag technology for concrete/steel structures like cofferdams, with customized ramp designs for ground-based launches.

Specialized Capabilities‌

• Heavy Lifting‌: Our high-contact-area airbags outperform hydraulic jacks in safety and lift capacity, ideal for fragile-bottomed LPG/LNG tanks.
• Caisson Logistics‌: Efficiently relocating 100+ caissons (up to 6,000 tonnes) without traditional trolleys.
• Military/Gov Projects‌: Leading in cost-effective fortification and bunker relocations for government contracts.
• Salvage Support‌: Providing buoyant airbags for underwater vessel recovery.

Value-Added Services‌

• Engineering Design‌: Advanced simulation software optimizes launch procedures and identifies risks pre-execution.
• Equipment Solutions‌: Offering winches (10T–50T) and airbags (1.0M–2.0M diameter) for sale/rental.
• Global Support‌: Deploying expert teams across 30+ countries with six-continent operational experience.
• Knowledge Transfer‌: Complimentary training in airbag maintenance, launch techniques, and beaching methods.

Doowin Marine combines innovation with operational rigor to redefine marine and industrial engineering standards globally.