Machinery Manufacturing is a professional port machinery manufacturing enterprise integrating product research and development, design, manufacturing and installation of port cranes. Our company has a strong technical force and experienced installation, debugging and after-sales service team. We serve customers with regular cycles, preferential prices, and good reputation, and continue to innovate and go global.
Why Choose Us
Our Certification
Our products have passed the international ISO9001:2000 standard quality system certification and CCS China Classification Society quality system certification, and have passed the ISO9001 quality management system certification. The company has the right to import and export on its own.
Product Application
Our main products include fixed load luffing cranes, fixed rack luffing slewing cranes, slewing hydraulic cranes, floating cranes, hydraulic cranes, etc. These products are widely used in cargo loading and unloading, stacking, dredging and lightering of engineering ships, and dock lifting operations in ports, power, metallurgy, and mining enterprises.
Production Equipment
Our company has gantry cranes, magnetic drills, CNC flame cutting machines, inverter CO2 gas shielded welding machines, CG1-30 semi-automatic flame cutting machines, submerged arc welding machines MZ-1000, bending machines, plate rolling machines, shearing machines, milling machines, lathes, sawing machines and other equipment.
Product Market
Relying on strong scientific research strength, our company's leading products have covered cities such as Shanghai, Dalian, Shenzhen, and Qingdao. Our products have opened up the international market and are exported to Southeast Asia, Africa, and developed countries in Europe.
Advantages of Port Grab
Increased Efficiency: The advanced gripping and loading capabilities accelerate job completion times, improving overall workflow.
Cost-Effective: By reducing manual labor and minimizing equipment downtime, these excavators provide a significant return on investment.
Enhanced Safety: The design and technology of mechanical grab reduce risks associated with material handling, promoting a safer work environment.
Versatile Usage: The ability to customize grabs based on specific tasks ensures adaptability to diverse material types and job requirements.
Application of Port Grab
Construction Sites
Ideal for digging foundations, lifting heavy building materials, and managing debris.
Mining Operations
Suitable for ore extraction and transporting materials in uneven terrain.
Waste Management
Highly effective for sorting and managing scrap materials in recycling and disposal facilities.
Dredging Activities
Used in waterway maintenance to remove sediment and debris, improving navigation channels.
Technical Parameters of Port Grab
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Maximum rated lifting capacity |
100t |
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Maximum bulk density of materials |
3.0t/m3 |
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Applicable materials |
Powdered and granulated bulk materials |
Mechanical grabs: The use of rope or linkage and other mechanical devices to drive the opening and closing, simple structure, low cost.
Electric grapple: Driven by the motor, high precision control, suitable for the higher requirements of the grabbing force occasions.
Electro-hydraulic grapple: Combining the advantages of electric and hydraulic, with high flexibility and reliability.
Double flap grabs: The most common type, consisting of two symmetrical flaps.
Multi-flap grabs: Suitable for grabbing irregularly shaped materials such as steel scrap.
Orange peel grab bucket: Bucket flaps are arranged in a curved shape, suitable for grabbing granular or powdery materials.
Grab Bucket Capacity
The capacity of a grab bucket refers to the maximum volume or weight of material it can effectively handle in a single grab. Grab bucket capacities can vary widely depending on their size, design, and intended application. Smaller hydraulic grab buckets may have capacities in the range of a few hundred liters or kilograms, while larger ones can handle several cubic meters or tons of material. It's crucial to consider the specific requirements of the project and the equipment's lifting capacity when selecting a grab bucket with the appropriate capacity.
Precautions for Use Port Grab
To fully assess the condition of the whole grab it is important to fully dismantle it down to individual component level. This allows every part to be cleaned and inspected, with special attention being paid to the dimensions of bushes, pins and pivot bores as well as the seals and dimensions of the hydraulic cylinders.
For those defects that are more difficult to see, non-destructive testing (NDT) techniques, such as magnetic particle and liquid dye penetrant testing should be used to discover any welds that have suffered from fatigue or excessive loads. This also applies to the hydraulic tank and the plate welds on the petals of the grab.
While dealing with the hydraulic tank, it is important to thoroughly clean the inside of the tank to remove any contamination and get the grab ready for reassembly. At this point, it should be possible to put together a comprehensive list of work required to repair or replace all the worn components for the operator.
Installation Requirements of Grab
Installing the new parts, either purchased or manufactured, is just the beginning of a refurbishment; new pivot pins, bushings and seals are used to reattach the petals to the main frame.
The hydraulic cylinders are resealed, having re-chromed the rods if necessary, and comprehensively pressure tested along with the hydraulic power pack, the control valves and the reservoir. Using a hydraulic datalogger it is possible to record pump pressures as well as pressures on both sides of the cylinders and provide the customer with a complete record of the results.
At the same time, new hard-facing is applied to the petals. This cross-hatched welding increases the durability of the steel plates that are required to operate in such arduous conditions. The welding acts as a sacrificial surface that can be replaced during the refurbishment and prevents wear of the base material.
Once all the components have been repaired, they are reassembled, with a new hydraulic filter fitted and clean oil added, it is possible to complete the function testing of the grab and then package it ready for shipment back to the customer. All of this can be achieved in two to three weeks, if parts are already stocked, ensuring the spare grab is back on site and ready to go back to work.
Packaging and Shipping of Port Grab
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Packing |
Ordinary wooden boxes or frame wooden boxes |
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Shipping |
Flatbed trucks, lowboy trailers, specialized heavy haul trucks |
We're well-known as one of the leading grab manufacturers and suppliers in China. Please feel free to buy high quality grab for sale here from our factory. Contact us for more details.
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