At DQCRANES,
grab cranes are designed for efficient handling of bulk materials like coal, ore, sand, grain, and waste. Equipped with durable mechanical, electric or hydraulic
grab buckets, they ensure smooth and reliable movement of heavy bulk materials in steel manufacturing, mining, ports, warehouses, and recycling facilities.
Recently, DQCRANES successfully designed, manufactured, and exported a 3 ton single girder grab
overhead crane to Nigeria, providing a tailored solution to meet the client's unique needs.
Client's Requirements
The client, a prominent player in Nigeria’s manufacturing and logistics sector, approached DQCRANES with specific requirements. Their primary need was a reliable and efficient overhead crane capable of handling bulk materials such as sand, gravel, and other loose goods in their production facility. The crane needed to be robust, easy to operate, and designed to withstand the challenging environmental conditions often encountered in industrial settings.
Grab Crane Solutions - DQCRANES
DQCRANES' engineering team worked closely with the client to understand their operational needs and constraints. The resulting 3 ton single girder grab bucket crane was designed with the following key features:
- Single Girder Design: The 3 ton overhead crane featured a robust single girder construction, providing a balance between strength and cost-effectiveness. This design minimizes the crane's footprint while maximizing its lifting capacity.
- Clamshell Grab: The grab mechanism was specifically designed for handling bulk materials such as sand, gravel, and aggregates. It ensures precise and efficient material handling, reducing downtime and increasing productivity.
- Advanced Control System: The grab crane for sale was equipped with pendent control and remote control system that allows operators to maneuver loads with accuracy and ease. Safety features include overload protection, emergency stop buttons, and anti-sway control to ensure safe and stable operation.
- Customization: The crane was customized to meet the specific dimensions and weight requirements of the Nigerian facility. It includes features such as adjustable hooks, and a durable paint finish to resist corrosion in tropical climates.
Types of Grabs for Cranes
Grabs are essential lifting attachments for overhead and
gantry cranes, specifically designed for handling bulk materials efficiently. At DQCRANES, we offer three main types of grabs for sale: mechanical grabs, electric grabs, and hydraulic grabs.
Mechanical GrabMechanical grab buckets do not come with their own opening and closing structures. Instead, their opening and closing are controlled by a cable drum located on the crane’s trolley. They are simple, cost-effective, and particularly suitable for handling loose and bulk materials.
Applications:
- Suitable for handling coal, coal powder, slaked lime, blast furnace slag, etc.
- Capable of handling small mineral stones such as iron ore, magnesium ore, and copper ore.
Electric Grab BucketElectric grab buckets are equipped with their opening and closing mechanism, typically powered by an electric hoist or winch system attached to the grab itself. Compared to a mechanical grab, an electric grab is more efficient and capable of handling heavier loads.
Applications:
- Suitable for lifting iron ore, copper concentrate, and other mineral-based materials.
- Frequently used in port operations for efficient bulk cargo handling.
Hydraulic GrabHydraulic grab for crane features an opening and closing structure powered by hydraulic cylinders. These grab buckets utilize multiple open and close jaw plates to ensure efficient and precise material handling. They are highly automated, powerful, and suitable for heavy-duty operations.
Applications:
- Efficiently moving scrap metal in recycling and steel plants.
- Sorting and handling garbage in waste treatment facilities.
- Lifting large mineral ores and slag in mining and smelting operations.
- Managing large debris and waste on construction sites.
Production and Delivery
Once the design was finalized, leveraging advanced machinery and stringent quality control measures, from the steel structure to the electrical systems, each element was meticulously crafted to guarantee optimal performance and durability.
Before shipment, the 3 ton grab bucket crane underwent rigorous testing to verify its functionality, load capacity, and safety features. DQCRANES’ logistics team managed every aspect of the export process, including packaging, documentation, and shipping arrangements. The crane was securely packed to prevent any damage during transit and shipped to Nigeria on schedule.
Installation and Training
Upon arrival, the grab crane will be reassembled and tested by the local engineers' team to ensure it performs as expected.
DQCRANES will provide comprehensive online installation guides, including site preparation, crane assembly, and safety checks. Additionally, DQCRANES will offer training sessions for the client's operators to ensure they are familiar with the crane's features and safe operating procedures.
Get a Customized Grab Crane Solution!
Whether it’s designing custom grab cranes for specialized applications or offering comprehensive after-sales support, DQCRANES is committed to excellence at every stage of the process. The following are essential considerations when buying an overhead or gantry crane with grab bucket:
Identify Your Material Handling Needs
- Material Type: Is the material loose (e.g., coal, grain) or bulky (e.g., scrap metal, large rocks)?
- Density and Weight: What is the density and weight of the material?
Choose the Right Grab Type
- Mechanical Grabs: Suitable for loose and lightweight materials like coal or sand.
- Electric Grabs: Ideal for heavier and compact materials like ores.
- Hydraulic Grabs: Perfect for handling large, bulky, or irregular items like scrap metal and construction debris.
Determine crane specifications
- Lifting Capacity: Ensure it accommodates the heaviest loads.
- Span and Lifting Height: Match the crane’s reach to your workspace dimensions.
- Work Duty Cycle: Choose light, medium, or heavy-duty classifications based on usage frequency.
Consider the Operational Environment
- Indoor vs. Outdoor Use: Outdoor gantry grab cranes may require weather-resistant features such as protective coatings or enclosures.
- Hazardous Areas: Explosion-proof or anti-corrosive designs are essential for environments with flammable materials or chemicals.
- Temperature Extremes: High- or low-temperature environments may require special materials and components to ensure reliable operation.
Select Control Options
- Pendant Control: For straightforward operations.
- Remote Control: Enhances safety and flexibility by allowing operation from a distance.
- Cabin Control: Ideal for heavy-duty, high-precision tasks.
Factor in Customization Needs
- Anti-sway mechanisms for precise material handling.
- Dust-proof or explosion-proof designs for hazardous environments.
- Smart monitoring systems for tracking crane performance.
For more information about DQCRANES’ grab cranes and services or to discuss your specific lifting needs, feel free to
contact us today!