Grab-Type Four-Link Portal Crane
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Grab-Type Four-Link Portal Crane is utilized in ports and bulk cargo terminals for loading and unloading ore, grain and other loose bulk materials.
Capacity:
20 ~ 32 t, Customizable
Lifting Height:
28 ~ 38 m, Customizable
Span:
10.5 ~ 12 m, Customizable
Voltage/Hertz:
Customizable
Working Class:
A7
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Introduction
Application Scenario
Advantages
Structural Diagram And Parameter Table
Introduction
Grab-Type Four-Link Portal Crane is a professional high-stability bulk cargo handling portal crane specially designed for port bulk operation. It adopts advanced four-link luffing mechanism with constant horizontal track, effectively eliminating height fluctuation and material swinging during luffing movement. Equipped with high-performance mechanical or hydraulic grab bucket, independent lifting and luffing drive system and full frequency conversion control system, the crane realizes automatic grabbing, lifting, transferring and discharging of various loose bulk materials. Featuring optimized wind resistance, salt spray anti-corrosion and dust-proof structure, it is built for long-term, high-frequency and heavy-intensity cyclic operation in harsh open port environments. It is the preferred core equipment for standardized and high-efficiency bulk cargo loading and unloading at terminals.
Application Scenario
Grab-Type Four-Link Portal Crane is widely used in bulk cargo operation terminals and industrial bulk yards. It is mainly applicable to inland river wharves, coastal bulk ports, coal storage terminals, mineral material yards, grain logistics ports and industrial raw material transfer stations. It is specially used for continuous loading and unloading of coal, ore, sand, grain, chemical powder and other bulk loose materials. It fully adapts to dusty, windy and high-frequency working conditions, meeting the rapid turnover and large-volume handling demands of modern bulk logistics.
Advantages
Grab-Type Four-Link Portal Crane has outstanding advantages of ultra-stable operation, high working efficiency and low material loss. The mature four-link constant-amplitude luffing technology ensures horizontal stable movement, effectively reducing grab swing and material spilling, greatly improving operation accuracy and reducing cargo loss. The matched high-capacity grab bucket features strong grabbing force and high filling rate, realizing continuous and efficient bulk material handling and improving terminal throughput. The full frequency conversion driving system achieves smooth start-stop, stable operation and low mechanical impact, extending equipment service life. The whole machine adopts professional anti-corrosion, dust-proof and wind-proof design, adapting to long-term open-air harsh port environments. With reasonable structural layout, low failure rate and convenient daily maintenance, it effectively reduces comprehensive operating costs. It provides stable, high-efficiency and economical bulk cargo handling solutions for various port and industrial logistics scenarios.
Structural Diagram And Parameter Table
| Rated Lifting Capacity (Grab) | 20 ~ 32 t, Customizable | Max Lifting Height | 28 ~ 38 m, Customizable |
| Span | 10.5 ~ 12 m, Customizable | Working Class | A7 |
| Grab Volume | 6 ~ 12 m³ | Hoisting Speed | 14 ~ 18 m/min |
| Working Wind Pressure | 250 N/m² | Power Supply | Customizable |
| Total Installed Power | 220 ~ 290 kW | Applicable Bulk Cargo | Coal, ore, grain, sand, clinker |
| Total Crane Weight | 300 ~ 370 t | Operating Temperature | -20 ℃ ~ +45 ℃ |
HOT PRODUCTS
CORE ADVANTAGES
1
HIGH QUALITY & STABLE PERFORMANCE
Built with premium materials and strict quality control, ensuring smooth and consistent operation even under heavy working conditions.
2
LONG SERVICE LIFE & LOW MAINTENANCE
Durable structural design reduces wear and tear, delivering long service life with minimal maintenance requirements.
3
HIGH EFFICIENCY & ENERGY SAVING
Optimized driving system ensures fast, responsive lifting while lowering energy consumption and operating costs.
4
HIGH SAFETY STANDARD & DURABLE STRUCTURE
Equipped with multiple safety devices and a rugged structure, providing reliable protection and long‑term durability.
5
CUSTOM DESIGN & FLEXIBLE SOLUTIONS
Fully customizable to different tonnages and working conditions, offering flexible lifting solutions for shipyards and marinas.
QUALIFICATION
FAQ for Grab-Type Four-Link Portal Crane
This FAQ covers common questions about Grab-Type Four-Link Portal Crane, including product characteristics, application scenarios and export supporting documents for quick customer reference.
What advantages does the four-link luffing system offer for grab operation?
The four-link mechanism keeps the grab moving horizontally during luffing, reducing material spilling. It suppresses swing effectively, enabling continuous and stable bulk cargo grabbing and unloading.
Can different types of grabs be matched to this portal crane?
Yes. Multiple grab options are available, including orange peel grabs and clamshell grabs to adapt to ores, sand, grain and other bulk materials with different properties.
What export technical documents can you provide?
We can supply complete general layout drawings, factory acceptance test reports and relevant certification files. All technical documentation can be compiled to satisfy inspection standards of different destination regions.
