General purpose overhead crane
Grab Bucket Overhead Crane for Bulk Material Handling
Product Overview
The Clamshell Grab Bucket Overhead Crane is a specialized, heavy-duty lifting solution designed specifically for the efficient handling of bulk materials. Built on a robust double-girder platform, this crane is equipped with a high-performance open winch trolley and a durable clamshell grab bucket. It is engineered to withstand the demanding, high-frequency cycles of loading, unloading, and transferring materials like sand, gravel, coal, grain, and industrial waste. This crane is the essential workhorse for ports, storage yards, power plants, and processing facilities.
Product Advantages
- High-Efficiency Bulk Handling: The specialized grab bucket and powerful winch system are designed for rapid, high-volume material transfer, significantly boosting your operational throughput and reducing cycle times.
- Engineered for Grab Duty: Designed for A6-A7 work duties, this crane features a reinforced structure, durable motors, and wear-resistant components to withstand the repetitive stress and impact of continuous grab operations.
- Precision and Load Control: Optional anti-sway technology and standard VFD controls provide superior stability and precision, minimizing material spillage, reducing cleanup, and enhancing overall safety during rapid movements.
- Durable and Reliable: Built to operate in dusty, abrasive, or harsh environments, with features like IP55 protection, robust cable management systems, and components selected for their long-term endurance and reliability.
- Customized for Your Material: The grab bucket itself can be tailored to the specific density and characteristics of the material you handle, ensuring optimal fill factor and handling efficiency.
Application Scenarios
- Ports and Terminals: Ideal for unloading bulk cargo like grain, coal, and ore from ships and barges to hoppers or stockpiles.
- Waste-to-Energy and Power Plants: Reliably handles municipal waste, biomass, coal, and ash as part of the continuous fuel feeding and processing cycle.
- Steel Mills and Foundries: Efficiently moves bulk raw materials such as scrap metal, coke, and limestone within the facility.
- Construction Material Yards: Quickly loads trucks and railcars with sand, gravel, cement clinker, and other aggregates.
- Agriculture and Food Processing: Handles large volumes of grain, animal feed, and other bulk agricultural products in storage silos and processing plants.
Product Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 5t / 10t / 16t / 20t / 30t (Grab + Material Weight) |
| Span | 10.5 m to 35.5 m (Customized to your yard or bay) |
| Max. Lifting Height | 10 m to 40 m (Customized as per your requirement) |
| Work Duty | A6–A7 (Heavy to Very Heavy Duty) |
| Lifting Speed | 0.8–5 m/min (VFD controlled for smooth operation) |
| Trolley Traveling Speed | 2–25 m/min (VFD controlled) |
| Crane Traveling Speed | 20–80 m/min (VFD controlled) |
| Hoist Type | Open Winch Trolley with four-rope grab mechanism |
| Hoist Motor | Heavy-duty VFD motor with enhanced cooling |
| Travel Motors | Heavy-duty VFD-controlled gear motors |
| Control Methods | Cabin Control (Standard), Wireless Remote Control (Optional) |
| Power Supply | 3-Phase 380V/400V/415V/440V, 50/60Hz |
| Control Voltage | 24V / 36V / 48V (Safe control voltage) |
| Electrical Components | Schneider, Siemens, or equivalent high-endurance brand |
| Safety Devices | Overload limiter, anti-sway control (optional), travel limits, emergency stop |
| Working Temperature | -20°C to +40°C (Designs for higher temps available) |
| Protection Class | IP55 (For dust and water jet protection) |
| Paint/Finish | Sandblasted Sa2.5, anti-corrosion primer, and heavy-duty topcoat |
| Steel Grade | Q355B High-Strength Carbon Structural Steel |
| Wheel/End Carriage | Forged and hardened steel wheels; Heavy-duty end carriages |
| Rail Size (typical) | P43, QU70, QU80 (Recommended for the application) |
| Braking | Electromagnetic and/or hydraulic brakes for all movements |
| Limit Switches | Included for all hoisting and travel motions |
| Documentation | Certificate of Conformity, Test Reports, CE/ISO Certificates |
| Warranty | 1 Year |
| Lead Time | 45–60 days (negotiable for specific configurations) |
Features at a Glance
- Specialized design for high-frequency bulk material handling with a clamshell grab.
- Heavy-duty A6-A7 work classification for maximum durability and reliability.
- Robust double-girder structure ensures stability during grab operations.
- Optional anti-sway control for increased efficiency and safety.
- Fully customizable to suit the specific material and operational environment.
FAQ
1. What’s the information should I provide when inquiry?
More details or drawings, better. A: Lift capacity B: Crane arm length C: lift height: hook travel distance D: What material to lift E: power source or other specials you give us will be more appreciated.
2. How many operating methods for my selection?
Standard operating methods: A: pendent controller with push buttons .B: remote control with push buttons. Choose any type as you like.
3. Can this type work in hazardous environment?
Sure! We can customize for you, acid proof or explosion proof, no problem for that.
4. What about warranty time ?
Use within the standard for the next 12 months.
5. How can we install the crane? Our senior engineer can be your side to do the installation guide service and training.
6. May I visit your factory?
Of course. We can pick you up at train station, high-speed rail station or airport, and book hotel for you.
