Shandong Lansheng Intelligent Equipment Dock Levelers: Solving Cold Chain and Port Loading/Unloading Challenges with Scenario-Based Customization

In special scenarios such as cold chain logistics and port terminals, dock levelers must not only meet the demand for efficient loading and unloading but also withstand harsh tests such as low temperatures, heavy loads, and frequent operations. With in-depth insights into segmented scenarios and accumulated customization technology, Shandong Lansheng Intelligent Equipment Co., Ltd. has developed low-temperature adaptive and heavy-load enhanced dock levelers, successfully solving core pain points for cold chain warehouses and port hubs. Real application cases demonstrate its core competitiveness of "precision adaptation + high-quality performance".

Cold Chain Logistics Scenario: Balancing Sealing and Efficiency at -30℃

A large Shandong food cold chain enterprise operates 3 high-standard cold storage facilities in Jinan and Qingdao, specializing in cross-regional distribution of quick-frozen foods and fresh ingredients. Previously, the enterprise faced two common industry challenges: first, poor sealing at the junction between the cold storage platform and truck compartments led to severe cold loss, with temperature fluctuations exceeding 2℃ inside the warehouse, increasing refrigeration energy consumption and affecting food freshness; second, ordinary dock levelers suffered from hydraulic system jams and reduced platform anti-skid performance at -25℃, taking 1.5 hours to load/unload a single vehicle and posing safety hazards. In the second half of 2023, the enterprise learned about Shandong Lansheng's special dock leveler solution for cold chains through an industry exhibition. After low-temperature condition tests, it purchased 12 customized fixed dock levelers.

Targeting the particularity of cold chain scenarios, the Shandong Lansheng team created a three-in-one solution of "sealing + cold resistance + efficiency": adopting a double sealing design, installing high-elasticity sponge gaskets and retractable wind curtains at the junctions between the dock leveler, platform, and truck compartment, reducing cold loss by 85%; upgrading the hydraulic system to -30℃ low-temperature resistant configuration, selecting special hydraulic oil and anti-freeze seals to ensure smooth lifting actions without jams in low-temperature environments; using a double anti-skid structure of patterned steel plates and diamond mesh on the platform, increasing the friction coefficient to 0.9, and integrating heating and deicing devices to completely solve the slipping problem in icy and snowy weather. Additionally, the entire equipment adopts anti-corrosion spraying technology to resist erosion from the humid cold storage environment and extend service life.

After the equipment was put into use, the enterprise achieved dual optimization of loading/unloading efficiency and operational costs: the loading/unloading time per vehicle was reduced from 1.5 hours to 40 minutes, and the daily average loading/unloading volume increased from 32 vehicles to 65 vehicles, an efficiency improvement of 103%; the internal warehouse temperature fluctuation was controlled within ±0.5℃, saving 80,000 yuan in monthly refrigeration energy consumption, and the food loss rate dropped from 1.2% to 0.2%. "Lansheng's special cold chain dock levelers not only solve the sealing and low-temperature jamming problems but also are easy to operate—one person can complete the docking, greatly reducing the labor intensity of employees," said the logistics director of the enterprise. After more than a year of operation in low-temperature conditions, the equipment has a zero failure rate, and the enterprise plans to purchase 8 more units for the newly expanded Yantai cold storage.

Port Terminal Scenario: Stable Loading/Unloading Support Under Heavy Load and High Frequency

A Qingdao container terminal, as an important foreign trade logistics hub in northern China, handles nearly 1,000 standard containers of import and export goods daily. The loading/unloading link faces harsh requirements of heavy loads, high frequency, and diverse vehicle types. Previously used ordinary dock levelers had two major drawbacks: insufficient load-bearing capacity, leading to platform deformation when facing 20-ton heavy container forklifts and requiring frequent maintenance; limited adjustment accuracy, unable to quickly adapt to container trucks of different heights, resulting in long vehicle queuing times and affecting terminal turnover efficiency. In early 2024, the terminal selected Shandong Lansheng through bidding and customized 15 heavy-load enhanced mobile dock levelers.

To meet the high-intensity operation needs of port terminals, Shandong Lansheng made three core upgrades: using national standard Q235 high-strength steel and an 8-beam reinforced structure, increasing the single-unit load-bearing capacity to 25 tons to meet the heavy-load requirements of heavy forklifts and containers; optimizing the hydraulic control system, achieving a lifting adjustment accuracy of ±5mm and expanding the height adjustment range to 0.8-2.0 meters, adapting to more than 95% of container truck models, and shortening the adjustment time to 20 seconds; adding an intelligent safety protection system, equipped with overload alarm, emergency braking, and anti-unhooking devices, while upgrading 650-16 thickened pneumatic tires to enhance the equipment's driving stability on the rough terminal ground. In addition, the equipment is designed for 24/7 continuous operation, extending the maintenance cycle to 6 months and reducing operation and maintenance costs.

After the commissioning of these heavy-load dock levelers, the loading/unloading efficiency of the Qingdao terminal significantly improved: the daily average container loading/unloading volume increased from 820 TEUs to 1,250 TEUs, a 52% increase; the vehicle waiting time was reduced from 40 minutes to 15 minutes, completely alleviating terminal congestion; the equipment operated continuously for 6,000 hours without failures, with no platform deformation or hydraulic system leakage, and the maintenance frequency decreased by 70% compared to before. "Port operations are a race against time. Lansheng's dock levelers have strong load-bearing capacity, fast adjustment, and few failures, which can fully withstand our high-intensity operation rhythm and provide key support for terminal efficiency improvement," commented the person in charge of the terminal's equipment management department.

From low-temperature sealing in cold chain logistics to heavy-load and high-frequency operations in port terminals, Shandong Lansheng Intelligent Equipment Co., Ltd. has always been scenario-driven, providing precise solutions for customers in special industries through customized R&D and high-quality performance. As a source manufacturer, Lansheng Intelligent Equipment not only has a 50,000-square-meter production base and a full set of precision processing equipment but also established a nationwide 24-hour after-sales response system to ensure stable operation of equipment under complex working conditions. Its products have passed ISO9001 quality management system certification and CE safety certification, and won wide recognition in cold chain, port, manufacturing, and other industries with the strength of 100% qualification rate in 5,000 consecutive load tests. In the future, Lansheng Intelligent Equipment will continue to focus on intelligent upgrading, developing functions such as IoT monitoring and automatic docking, to empower loading and unloading links in more special scenarios.