Cement Screw Ship Unloader Suppliers

Cement Screw Ship Unloader Manufacturer & Supplier

As a Cement Screw Ship Unloader Suppliers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

Hangzhou Aotuo Mechanical and Electrical Co., Ltd. (AOTUO) designs and manufactures a complete range of cement screw ship unloaders for ports, terminals, and inland wharves. As a China-based Cement Screw Ship Unloader manufacturer and supplier, we provide continuous, fully enclosed conveying systems that protect bulk cement from moisture and dust while achieving unloading rates from 150 t/h to 1500 t/h for vessels up to 70,000 DWT.

Our unloaders are engineered for abrasive, hygroscopic materials and are built to meet the industry standard JC/T 2575 "Bulk Cement Spiral Unloader," which we helped draft. With over 20 years of R&D and manufacturing experience, we supply rail-mounted, tire-mounted, vehicle-mounted, and shipborne configurations, each tailored to your berth layout, vessel size, and downstream conveying system.

Why Choose a Screw Unloader for Cement?

Bulk cement is highly hygroscopic and abrasive. Traditional grab unloaders expose the material to ambient air, causing moisture absorption, clumping, and dust emissions. Our screw ship unloaders use a fully enclosed, sealed steel casing that physically isolates cement from humidity and light rain. An integrated dust collection system maintains a clean internal environment, and positive pressure control prevents moist sea air from entering the material flow.

This design also minimizes material degradation and spillage, making it the preferred choice for cement terminals that must meet strict environmental regulations. The continuous mechanical conveying action is gentler on the product than pneumatic systems, which can be energy-intensive and limited in capacity.

Our Cement Unloader Configurations

We offer five main configurations to match your berth and operational needs. Each can be customized with different boom lengths, slewing angles, and discharge heights to connect seamlessly to your existing conveyor system.

Key Technical Features

• Fully Enclosed Conveying Path: Vertical and horizontal screws are housed in weather-sealed steel tubes, preventing moisture ingress and dust leakage.
• Intelligent Control System: Real-time monitoring of screw torque and material density prevents overloading and ensures consistent flow, even with slight variations in cement moisture.
• High-Capacity Operation: Our systems can handle up to 1,500 t/h (and up to 3,000 t/h for coal models), reducing vessel turnaround time.
• Low Dust Emission: Integrated dust collectors keep emissions below 10 mg/m³, meeting stringent environmental standards.
• Durable Construction: Wear-resistant materials and robust steel structures are designed for abrasive cement and long service life.

Engineering and Customization

Every cement screw ship unloader we supply is engineered to your specific project. We start with your vessel size, berth layout, required unloading rate, and downstream conveyor interface. Our team then configures the machine's reach, slewing range, and discharge height to ensure smooth material transfer.

We also offer auxiliary equipment such as dust suppression hopper loaders, ship loaders, and transfer station systems, allowing us to provide a complete port transfer solution. Our in-house engineering covers process, steel structure, mechanical, hydraulic, automation, and IT, so you get a fully integrated system.

Quality Assurance and Standards

Our manufacturing facility spans 35,000 square meters and includes an A-level production workshop of 14,000 square meters. We hold quality management, environmental management, and occupational health and safety management system certifications. As the responsible drafting unit for JC/T 2575, we ensure our unloaders meet or exceed industry requirements.

Each machine undergoes rigorous testing before delivery, including load tests, dust emission checks, and control system validation. We also provide comprehensive documentation, including drawings, operation manuals, and maintenance schedules.

Global Service and Support

AOTUO has exported cement screw ship unloaders to Australia, Singapore, the Philippines, Vietnam, Indonesia, and Bangladesh, among other countries. We offer one-on-one customer service, with installation, commissioning, and after-sales support provided by our experienced engineers. Our service network is expanding along the "Belt and Road" route, ensuring timely response and spare parts availability.

We provide 24/7 technical support and aim for a 1-hour response time and 6-hour solution for common issues. Our after-sales team can also train your operators and maintenance staff on site.

Information We Use to Configure Your Solution

To prepare an accurate proposal and quotation, we need the following project details:

• Vessel size (DWT) and typical hatch dimensions
• Required unloading capacity (t/h)
• Berth layout and available space for the unloader
• Downstream conveyor height and connection point
• Power supply voltage and frequency
• Environmental regulations for dust emissions
• Preferred configuration (rail, tire, fixed, etc.)

With this information, we can provide a tailored solution that meets your performance and compliance requirements.

Frequently Asked Questions

What is the typical lead time for a cement screw ship unloader?

Lead time depends on the configuration and customization level. For standard models, it typically ranges from 4 to 6 months, including design, manufacturing, and testing. We provide a detailed schedule with our quotation.

Can your unloader handle cement with high moisture content?

Our fully enclosed design and intelligent control system are specifically engineered to handle moisture variations. The sealed casing prevents external humidity from affecting the material, and the control system adjusts screw speed to prevent clogging.

Do you provide installation and commissioning services?

Yes, we offer full installation and commissioning support. Our engineers can supervise the installation, conduct load tests, and train your operators. We also provide remote assistance when needed.

What spare parts do you recommend keeping in stock?

We recommend keeping wear parts such as screw flights, liners, and seals, as well as critical electrical components like sensors and drives. We provide a recommended spare parts list with each machine.

Can you integrate the unloader with our existing control system?

Yes, our intelligent control systems can be configured to interface with your PLC or SCADA system. We support common communication protocols such as Modbus, Profibus, and Ethernet/IP.

Related Products and Categories

Our portfolio also includes 1000-70000 DWT 200-1500t/h Rail mobile Screw Ship Unloader, More Details for applications with different operating ranges, interfaces or integration requirements.