WJ-LEAN delivers measurable impact across global warehouse and manufacturing operations through innovative racking and lean production systems.
Precision-engineered flow racking parts and roller track systems for high-performance industrial warehouse storage.
Warehouse Storage Roller Track — High Strength Flat Caster Nylon Wheel for Industrial Flow Racking
Warehouse Racking Bottom Accessories — Galvanized Steel Adjustable Tube Joints for Industrial Racks
Warehouse Flow Racking Component — Coated Steel Pipe Type 40 Flat Wheel Steel Roller Track
Heavy Duty Warehouse Racks With Wheels — Type 40 Flat Wheel Steel Roller Track Flow Racking
Industrial racking systems are the structural backbone of modern warehouse and manufacturing operations. Designed to maximize vertical and horizontal space utilization, these systems provide organized, accessible, and scalable storage for goods, components, and materials across diverse industries.
The global warehouse racking market is undergoing a fundamental transformation driven by e-commerce growth, supply chain digitalization, and the push for lean, sustainable manufacturing.
From automotive assembly lines to cold-chain food storage, industrial racking systems serve as the critical infrastructure enabling efficient, safe, and scalable operations across every major industry.
WJ-LEAN Technology Co., Ltd. is a manufacturer focusing on lean production automation and its technical solutions. The company is headquartered in Dongguan, Guangdong Province, with a global market layout and comprehensive service agencies in many countries around the world.
The products are widely used in mechanical frame structure and connection of various parts, industrial assembly lines and conveyor belts, small motor equipment and non-standard electromechanical equipment, industrial inspection and testing and safety protection equipment. Including electronics, auto parts assembly lines, home appliances, chemicals, furniture advertising, medical food, cleaning equipment and other fields. By 2020, WJ-LEAN has provided more than a thousand products to the world.
In 2005, Wu Jun, who had long heard that Japan had advanced production technology, came to a Japanese company in Dongguan to study manufacturing. When he came to this company again in 2008, he found that a production line of the Japanese company at that time only took 2 days from assembly to use.
Since then, he had a bold idea to introduce this advanced production line into China and carry it forward, and continuously improve the material technology. Later, in order to attract business, he simply sold all the spare parts of this lean production to the world. Five years later, his "Wu Jun" brand spare parts have been sold all over the world. In order to make local customers more satisfied, he personally released the market and communicated with many customers around the world in depth.
But due to external accent problems, locals always call "Wu Jun" a pronunciation similar to "weijie", and the Weijie brand was born. In 2020, the company's brand was upgraded and its name was officially changed to "WJ-lean".
We use highly adjustable mechanisms and actuators as well as other necessary solutions to deliver fully functional products. The company has all industry product systems, including but not limited to MB industrial aluminum profile assembly system, lean production system, linear module system, workbench system and small elevator platform system. We provide advanced solutions for lean production automation, ergonomics and future intelligent manufacturing.


Explore our full lineup of industrial racking components — from Karakuri gravity systems to Kanban flow racks and precision pipe joint connectors for every warehouse storage application.
Warehouse Storage Roller Track — High Strength Flat Caster Nylon Wheel
Warehouse Racking Accessories — Galvanized Steel Adjustable Bottom Joints
Warehouse Flow Racking — Coated Steel Pipe Type 40 Flat Wheel Roller Track
Heavy Duty Warehouse Racks With Wheels — Type 40 Flow Racking Component
Kanban Warehouse Racking Storage Systems — Galvanized Steel Adjustable Accessories
Karakuri Warehouse Flow Racking — Type 40 Aluminum Roller Track Component
Industrial Warehouse Shelving Rack — Inner Corner Joint Pipe System Connector
Gravity Flow Warehouse Racking System — Type 40 Flat Wheel Steel Roller Track
Partner with WJ-LEAN for custom industrial racking solutions that drive efficiency, reduce costs, and future-proof your warehouse operations worldwide.
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