In the field of construction machinery, technological innovation has always been a key force in promoting the development of the industry.
News came on June 3, 2026. Information from the State Intellectual Property Office showed that Guangxi Liugong Machinery Co., Ltd. successfully applied for a patent called “A hydraulic system and rotating fork forestry machine”. The authorization announcement number is CN224315268U, and the authorization announcement date is June 2, 2026.
The patent application number is CN202521087228.9, the application publication date is June 2, 2026, and the application date is May 29, 2025.
The patent abstract shows that the utility model relates to the technical field of loader hydraulic systems and provides a hydraulic system and a rotary fork-holding forestry machine, including a main control board and a fork-holding tilt link and an active arm link electrically connected thereto. The fork-holding tilt link includes a fork-holding tilt cylinder, a floating balance component, and an oil supply valve group.
The innovation of this patent is that a floating balance assembly is connected in series between the fork tilt cylinder and its corresponding oil supply valve group, and the first solenoid valve and the second solenoid valve in the floating balance assembly are used to obtain the working status of the active arm (including the long moving arm link and the short moving arm link).
Furthermore, when the active arm is working, the balance valve is powered and the fork tilt cylinder is in a floating position, allowing the fork to be adjusted by its own gravity, and the entire fork can naturally droop by gravity; when the active arm is not working, the balance valve is de-energized and the fork tilt cylinder is locked to prevent the fork from shaking with the whole machine, thereby effectively preventing the fork from accidentally tilting.
LiuGong was established on November 8, 1993, and listed on the Shenzhen Stock Exchange on November 18, 1993. Its registered address and office address are both in Liuzhou City, Guangxi.
As a leading domestic construction machinery manufacturer, LiuGong’s core business covers construction machinery and key components, with advantages across the entire industry chain.
LiuGong’s main business is the research and development, production, sales and service of construction machinery and key components. The Shenwan industry it belongs to is mechanical equipment – construction machinery – complete construction machinery, involving Yaxia power station concept, low price-earnings ratio, net-breaking stocks and other conceptual sectors.
In 2025, LiuGong achieved operating income of 33.144 billion yuan, ranking 4th among 23 companies in the industry.
XCMG Machinery, the first in the industry, is 100.823 billion yuan, and Sany Heavy Industry, the second, is 89.231 billion yuan. The industry average is 16.765 billion yuan, and the median is 6.689 billion yuan.
Among its main businesses, revenue from earthmoving machinery was 20.45 billion yuan, accounting for 61.70%; revenue from other construction machinery and parts was 9.611 billion yuan, accounting for 29.00%; revenue from prestressed machinery was 2.523 billion yuan, accounting for 7.61%; revenue from leasing business was 560 million yuan, accounting for 1.69%.
In terms of net profit, it will be 1.409 billion yuan in 2025, ranking 8th in the industry. The first Sany Heavy Industry is 8.488 billion yuan, the second XCMG Machinery is 6.686 billion yuan, the industry average is 1.362 billion yuan, and the median is 530 million yuan.
It is worth mentioning that Guangxi Liugong Machinery Co., Ltd. has made fruitful achievements in patents recently.
The following are some recent patent situations:
| Serial number | Patent name | Patent type | Legal status | Application number | Application date | Publication (announcement) number | Public (publication) Report) Date |
Inventor |
|---|---|---|---|---|---|---|---|---|
| 1 | Operation control method, device, equipment and medium for engineering equipment | Invention patent | Published | CN202610537220.0 | 2026 – 04 – 22 |
CN122129052A | 2026 – 06 – 02 |
Luo Jianwei, Tao Linyu, Jia Chong |
| 2 | A shovel loading control method, equipment, medium and Product |
Invention patent | Effectiveness and publication of substantive examination | CN202610379389.8 | 2026 – 03 – 26 |
CN121992832A | 2026 – 05 – 08 |
Luo Jianwei, Tao Linyu, Jia Chong |
| 3 | A hydrostatically driven bulldozer control system, method and medium | Invention patent | Effectiveness and publication of substantive examination | CN202610345592.3 | 2026 – 03 – 20 |
CN121931903A | 2026 – 04 – 28 |
Ma Wei, Lu Gang, Wu Junzong, Tao Linyu, Wei Zhenhua, Cheng Zhihao |
| 4 | Energy consumption control method for extended-range vehicle platooning, Devices, equipment and media |
Invention patents | Effectiveness and publication of substantive examination | CN202610314190.7 | 2026 – 03 – 16 |
CN121912934A | 2026 – 04 – 24 |
Luo Jianwei, Tao Linyu, Jia Chong |
| 5 | A vertical lifting control method, equipment, medium and program product | Invention patent | Effectiveness and publication of substantive examination | CN202610314197.9 | 2026 – 03 – 16 |
CN121974250A | 2026 – 05 – 05 |
Zhang Enlai, Wei Zhenhua, Ma Wei, Tao Linyu, Wu Junzong, Qin Yonglin, Wei Shijia, Wei Lei |
These patents cover technological innovation in multiple fields of construction machinery, fully reflecting LiuGong’s continuous investment and strong strength in technology research and development.
In the future, Liugong is expected to rely on these technological advantages to achieve better results in the global construction machinery market and introduce more high-quality Chinese construction machinery products to the world.
