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Hangzhou Aotuo Mechanical and Electrical Co., Ltd.
Hangzhou Aotuo Mechanical and Electrical Co., Ltd.(Abbreviated as AOTUO) was established in 2003 and is China
Custom OEM/ODM Grain unloader Suppliers and
Grain unloader Factory and AOTUO is a nationalhigh+tech enterprise that focuses on the integrated solutions of the harbor dry bulk material transfer system, as well as the research and development, manufacturing, and service of high-end equipment for dry bulk material port loading and unloading...
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Admin 2026-09-09
Grain Ship Loader Maintenance Guide: 5 Checks That Prevent Costly Downtime
A Grain Ship Loader Breaks Down in Three Places at Once Your rail-mounted grain loader has just dropped a telescopic spout liner during the third hat...Read More -
Admin 2026-09-04
Custom Grain Ship Loader Solutions for Port Projects: Design, Capacity & Compliance
When a port project team starts specifying a new grain export or import terminal, the ship loader is often the last major equipment decision. By that...Read More -
Admin 2026-09-03
How to Reduce Grain Ship Loader Maintenance Costs: A Practical Guide | AOTUO
A mid-sized grain terminal was spending nearly 18 percent more on ship loader maintenance every year. The extra cost did not come from a single catas...Read More -
Admin 2026-08-28
Aotuo launches eco-friendly multi-material ship unloader
Aotuo has successfully launched another continuous-type environmental-friendly multi-material ship unloader. Recently, another new-generation continuo...Read More -
Admin 2026-08-26
Grain Ship Loader Quality Control Standards Explained: A Practical Guide
What Counts as a Quality Control Standard for a Grain Ship Loader Quality control standards for a grain ship loader are not written in a single code....Read More
Grain unloader Industry knowledge
Grain Unloader Manufacturer and Supplier
As a Grain 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 builds continuous screw-type ship unloaders for grain and other dry bulk materials. As a Grain unloader manufacturer and supplier, we combine 20 years of R&D with in-house manufacturing to deliver reliable, high-capacity unloading solutions for ports and terminals worldwide.
Our Grain Unloader Range
We offer a family of screw-type unloaders tailored to different vessel sizes, berth layouts, and throughput targets. Each configuration uses a vertical screw and centrifugal feeder to extract grain from the hold with minimal dust and product damage.
| Model Type | Capacity | Vessel Size | Best Fit |
|---|---|---|---|
| Rail-Mobile Screw Ship Unloader | 200–1500 t/h | 1000–70000 DWT | Fixed berths with rail track; high throughput |
| Tire-Mobile Screw Ship Unloader | 200–1500 t/h | 1000–70000 DWT | Multi-berth flexibility without rail |
| Vehicle-Mounted Screw Ship Unloader | 150–500 t/h | 800–5000 DWT | Small inland vessels, mobile river terminals |
| Shipborne Screw Ship Unloader | 200–1000 t/h | 1000–70000 DWT | Self-unloading vessels, offshore transfer |
For larger grain carriers, our Screw Ship Unloader line includes models up to 3000 t/h and 200,000 DWT, as used in major export terminals.
Application Fit and Material Handling
Our grain unloaders are engineered for wheat, corn, soybeans, barley, rice, and similar free-flowing grains. The enclosed screw and telescopic spout minimize dust emissions and prevent contamination, meeting modern environmental standards.
- Gentle handling: Low-speed screw rotation reduces grain breakage and maintains quality.
- Dust control: Fully enclosed conveying path and integrated dust collection points.
- Hull protection: The feeder shoe is designed to avoid damage to ship structures.
Engineering and Customization
We configure each unloader to your specific berth, vessel mix, and downstream conveyor system. Our engineering team integrates mechanical, structural, hydraulic, and automation disciplines to deliver a complete solution.
Key configuration parameters include:
- Unloading capacity (t/h) and vessel size range (DWT)
- Boom length, outreach, and clearance under the gantry
- Mobility: rail-mounted, tire-mounted, or shipborne
- Dust collection system type and filtration efficiency
- Control system interface with existing plant PLC or DCS
Quality and Manufacturing
Our 35,000 m² factory uses CNC machining, automated welding, and precision coating processes. We hold ISO 9001 quality management certification and follow strict inspection procedures for every component.
We are the drafting unit for the industry standard JC/T 2575 "Bulk Cement Screw Ship Unloader" and hold over 100 patents and software copyrights, reflecting our technical leadership in screw unloader technology.
Automation and Integration
Our unloaders can be equipped with advanced automation for semi-automatic or fully automatic operation. Features include:
- Remote monitoring and fault diagnosis
- Belt weigher integration for accurate throughput measurement
- Position sensors for boom and trolley control
- Interlocking with ship loading systems and yard conveyors
We provide the control system as part of the supply, or we can integrate with your existing automation architecture.
Installation, Commissioning, and Support
Our service team handles installation supervision, commissioning, and operator training. We offer a 24/7 service hotline and maintain a global service network along the Belt and Road, with response commitments of 1 hour for remote support and 6 hours for solution proposals.
We also supply spare parts and provide preventive maintenance programs to maximize uptime.
Information We Use to Configure Your Solution
To prepare a detailed proposal, we need the following project data:
- Material type, bulk density, and angle of repose
- Required unloading rate (t/h) and annual throughput
- Vessel sizes (DWT) and number of hatches
- Berth layout, rail gauge, and available power supply
- Environmental regulations for dust emissions
- Preferred control system and integration points
Frequently Asked Questions
Q: What grain types can your unloaders handle?
A: Our unloaders are designed for wheat, corn, soybeans, barley, rice, and similar free-flowing grains. We adjust the screw pitch and speed based on the material's properties to ensure efficient and gentle handling.
Q: Can you provide a dust-free unloading solution?
A: Yes, our unloaders feature a fully enclosed conveying path and integrated dust collection points. We can also add a central dust collector to meet strict environmental standards.
Q: What is the typical delivery time for a grain unloader?
A: Delivery time depends on the configuration and complexity. After receiving your project details, we provide a confirmed schedule in our quotation. Standard models typically ship within 6–8 months.
Q: Do you offer installation and training?
A: Yes, we provide installation supervision, commissioning, and operator training as part of our service package. Our engineers can also support on-site during the initial operation phase.
Q: Can you customize the unloader for an existing berth?
A: Absolutely. We design each unloader to match your berth dimensions, vessel sizes, and existing conveyor interfaces. Our engineering team works closely with your project team to ensure a seamless fit.
Related Products and Categories
Our portfolio also includes 1000-70000 DWT 200-1500t/h Rail mobile Screw Ship Unloader for applications with different operating ranges, interfaces or integration requirements.
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Contact Us
- WhatsApp: +86-13675892653
- Tel: +86-18958022558(Timmy You)
- +86-13675892653(IVY Zhou)
- E-mail: [email protected]
- Add: No. 3 Heyan Road, Renhe Base, Qianjiang Economic Development Zone, Yuhang District, Hangzhou City
Copyright © Hangzhou Aotuo Mechanical and Electrical Co., Ltd. All Rights Reserved.
Custom OEM/ODM Grain unloader Suppliers
