YFM Crane --- Chinese Manufacturer Breaks Technological Boundaries: Eccentric Arm Grab Crane Achieves Revolutionary Expansion Of Working Radius

Jun 13, 2025

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--- Eccentric Platform Design Empowers 30% Port Handling Efficiency Leap, Working Radius Leading Traditional Models by 6-10 Meters

Ex-Center Arm bulk cargo crane

As global bulk cargo terminal throughput continues to rise, YFM, a Chinese heavy machinery manufacturer, has introduced the cargo crane with an ex-center arm. It's breakthrough structural design addresses the industry pain point of limited working radius in traditional deck cranes.

 

Different from the structure of conventional bulk grab deck cranes, this cargo crane innovatively adopts Ex-Center Platform technology. Through mechanical optimization, the crane tower is pre-installed on a cantilever platform offset from the slewing center. Verified by authoritative institutions, this design achieves a critical 6-10 meter breakthrough in Working Radius, increasing the cargo hold area covered per operation by 40% and significantly reducing ship berthing frequency.

 

"The eccentric arm structure represents a disruptive innovation in bulk cargo handling," said Wang Zhenhua, Chief Engineer of Sany Port Machinery, a leading Chinese manufacturer. "When handling the rear cargo holds of Panamax bulk carriers, operators can complete operations in edge areas without frequent vessel repositioning, reducing the average unloading time per ship by 3.5 hours."

 

Ex-Center Arm bulk cargo crane

The technological advantages have been validated by international clients:


✅ Loading/unloading efficiency improved by 32% at an Indonesian nickel ore terminal
✅ Equipment configuration reduced by 20% at Richards Bay Coal Terminal in South Africa
✅ Working radius extension shortens berthing window for 80,000 DWT bulk carriers to 36 hours

 

Currently, Chinese manufacturers including Zhenhua Heavy Industry and XCMG have achieved mass production of full-series Eccentric Boom Cargo Cranes, with load capacities ranging from 15 to 30 tons. All key components are certified under ISO 4301, adapting to special conditions such as salt spray corrosion and -30℃ extreme cold.

 

Ex-Center Arm bulk cargo crane

 

Core Value Highlights:

 

 Revolutionary Radius Expansion: Maximum working radius reaches 40m (traditional models: 26-30m)

 Dynamic Balance System: Overall stability improved by 27% during eccentric operations

 Intelligent Anti-Sway Control: Accurate grab positioning achieved via PLC system integration

 

With the RCEP agreement deepening regional trade cooperation, China-manufactured Cargo Handling Cranes with Offset Booms are accelerating exports to emerging ports in Southeast Asia, Latin America, and Africa. Industry analysts predict this technology will become the standard configuration for modern bulk carriers within the next five years.

 

Ex-Center Arm bulk cargo crane

 

Call to Action

 

Upgrade your vessel's lifting system with a YFM-certified Cargo Crane with Ex-Center Arm today!

Contact our team to get a customized solution:


📧 E-mail:anne@yfm-crane.com

  Phone/Whatsapp: +86 15818704927
🌐 Visit:https://www.yfm-crane.com/marine-crane/deck-crane/cargo-crane-with-ex-center-arm.html

cargo crane with ex-centre arm

One-stop Eccentric Arm Grab Crane Factory in China

-- YFM Crane is Specifically Designed for Heavy-Duty Applications in Ports, Terminals, Jettys, offshores, and Industrial Scenarios

Empower efficient bulk material handling?

📞 Tel./WA.:+86 15818704927
📧 E-mail.:anne@yfm-crane.com
🌐 Web.:www.yfm-crane.com