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Hangzhou Aotuo Mechanical and Electrical Co., Ltd. (AOTUO) is a national high-tech enterprise and a leading Port Loading And Unloading Equipment Manufacturers. Since 2003, we have focused on integrated solutions for dry bulk material port transfer systems, covering research, development, manufacturing, and service of high-end equipment. Our product range includes screw ship unloaders, ship loaders, dust suppression hopper loaders, and auxiliary equipment, engineered for cement, coal, clinker, grain, and other bulk materials.
With over 100 patents and software copyrights, we are the responsible drafting unit for the industry standard JC/T 2575 "Bulk Cement Spiral Unloader." Our equipment handles vessels up to 200,000 DWT with unloading capacities reaching 3,000 t/h, serving ports across Australia, Singapore, the Philippines, Vietnam, Indonesia, and Bangladesh under the Belt and Road initiative.
We offer a complete line of continuous, environmentally friendly unloading and loading machinery. Each type is designed for specific vessel sizes, material characteristics, and berth configurations.
| Category | Typical Models | Capacity Range | Vessel Size | Primary Applications |
|---|---|---|---|---|
| Screw Ship Unloader | Rail mobile, fixed, tire mobile, vehicle mounted, shipborne | 100–3,000 t/h | Up to 200,000 DWT | Cement, coal, clinker, grain, multi-material |
| Ship Loader | Rail mobile | 300–1,500 t/h | 800–50,000 DWT | Loading bulk materials onto vessels |
| Dust Suppression Hopper Loader | Tire mobile | 200–800 t/h | Truck/hopper feeding | Transfer from trucks to conveyors with dust control |
| Auxiliary Equipment | Bulk truck loaders, dust collectors | 150–600 t/h | N/A | Conveying, metering, dust removal |
Our equipment is engineered for dry bulk materials with varying abrasiveness, moisture, and particle size. The fully enclosed screw conveyor design minimizes dust emissions and protects hygroscopic materials like cement from moisture.
We configure each machine based on your berth layout, material flow, and integration needs. Options include rail travel, tire mobility, fixed installation, or shipborne mounting. Our intelligent control systems provide:
Our factory in Hangzhou spans 35,000 square meters with an A-level production workshop. We hold ISO 9001 quality management, ISO 14001 environmental, and ISO 45001 occupational health certifications. Each unit undergoes rigorous testing, including load tests, dust emission checks, and safety system validation before shipment.
To prepare a precise proposal, we need the following project data:
Our unloaders are designed for vessels from 600 DWT (fixed type) up to 200,000 DWT (rail mobile coal unloader). We match the machine's outreach and capacity to your typical vessel fleet.
Our screw unloaders feature a fully enclosed conveying path with integrated dust collectors, achieving dust emissions below 10 mg/m³. This meets strict environmental standards in markets like Australia and Singapore.
Yes, we offer OEM/ODM customization. For abrasive materials like clinker, we use wear-resistant alloys; for food-grade grain, we ensure gentle handling and easy cleaning. We adjust screw pitch, speed, and lining materials accordingly.
After receiving your technical specifications and placing an order, standard delivery is typically 6-9 months, depending on configuration and factory load. We provide a detailed schedule during the proposal stage.
Yes, we offer on-site installation supervision, commissioning, and training. Our service team responds within 1 hour and provides solutions within 6 hours, with a global service network along the Belt and Road.