Chongqing Factory Tour | 13?Worker Line, 60%+ Efficiency Gain: Inside Kanghui Ultra?Clean

From 850 pieces to over 1,400 pieces.

For a production line of 13 people, these numbers tell a clear story of change.

Recently, we visited Kanghui Ultra-Clean Technology (Chongqing) Co., Ltd. to see how ZOJE's hanging system and digital solutions have brought tangible improvements to the factory since being put into production.

Kanghui Chongqing was established on August 15, 2025, and officially commenced production in January of this year. The company specializes in cleanroom garments, anti-static clothing, medical protective apparel, and PPE protective products. As a newly built factory, Kanghui Chongqing integrated digital production into its overall layout from the planning stage, introducing ZOJE sewing equipment including lockstitch machines, overlock machines, and coverstitch machines, as well as ZOJE-Aibous MES and WMS digital systems.

In traditional garment production, cut pieces need to be transferred between different workstations. In addition to sewing, workers also have to handle material fetching, transporting, identification, and recycling — tasks that consume labor and can lead to waiting times and material buildup.

What ZOJE's hanging system changes, first and foremost, is the way materials flow. Once cut pieces enter the hanging system, they automatically move along the rail to the corresponding workstation, reducing manual handling and intermediate steps, and allowing workers to focus more on their specific tasks.

According to Wan Fachun, Manager of Kanghui Chongqing, taking a relatively simple protective garment as an example, a 13-person production line produced about 850 pieces per day before the hanging system was installed. After implementing ZOJE's hanging system, daily output reached over 1,400 pieces — an efficiency improvement of over 60%.

Manager Wan added: "With the hanging system, each person can more consistently complete their own process, reducing the time spent on fetching, identifying, and returning materials. Operator proficiency also steadily improves. Even for more complex anti-static garments, overall efficiency can increase by over 10%."

From 850 to over 1,400 pieces, what has improved is not just material handling speed. With smoother workflow, operators can remain focused on their processes, and materials can flow along predetermined paths — this is the tangible value the hanging system delivers.

Compared to protective garments, anti-static clothing comes in a wider variety of styles and processes, with some products requiring frequent thread changes. Coverstitching is one of the more complex processes, requiring two layers of fabric to be folded and aligned before sewing — demanding both operator skill and process stability.

Therefore, the efficiency gains from the hanging system cannot be simply summarized by a single set of figures across different products. Product structure, process flow, operator proficiency, and material organization all affect final output. However, for products like cleanroom and anti-static garments, which come in diverse orders and vary significantly in process complexity, stable process coordination is especially critical.

If the hanging system solves material flow issues on the production line, Kanghui Chongqing's digital factory vision — planned from the very beginning of the factory's establishment — addresses an even bigger challenge.

Currently, the factory has implemented ZOJE-Aibous MES (Manufacturing Execution System) and WMS (Warehouse Management System), and has already integrated with an ERP system. The next step is to introduce a financial system.

Among the existing digital applications, functions such as piece-rate counting and order output are already in use, and WMS has been integrated into production and warehousing processes.

Furthermore, according to Manager Wan, as the production system continues to improve, customers are also eager to track production progress and delivery timelines in a more timely and accurate manner — potentially even connecting the system to their own management systems.

In other words, digitalization ultimately connects not only equipment and departments within the factory but also the factory with its customers.

This is one of the shifts taking place in garment manufacturing digitalization:
In the past, factory digitalization mainly focused on "how to manage internally." In the future, it must also address "how customers can see what's happening."

From the production floor to management systems, and then to customer needs, the real value of digitalization lies in enabling information to flow, making production more transparent, and delivery more certain.

Competition in the cleanroom garment sector is intensifying. Kanghui Technology's focus extends beyond production capacity to product quality, delivery stability, and customer service capabilities.

Cleanroom garments, anti-static clothing, medical protective apparel, and PPE products each have different requirements for process precision and quality consistency. Having equipment is only the foundation. The real capability factories need to build over the long term is how to match processes to products, organize production, ensure quality, and respond quickly to customer needs.

From standalone equipment such as lockstitch, overlock, and coverstitch machines, to the hanging system, and then to MES, WMS, and other digital systems, ZOJE's partnership with Kanghui is progressively deepening into production system development. In the face of fierce market competition, Kanghui places greater emphasis on service and quality, embedding customer satisfaction and market recognition into production processes, product delivery, and daily service.

Kanghui Chongqing began planning for digital production from the very start of the factory's construction — because when industry competition shifts from "whether there are orders" to "whether orders can be delivered stably and efficiently," both production efficiency and management efficiency become equally important.

From 850 to over 1,400 pieces — that's the efficiency change brought by the hanging system. From the implementation of MES and WMS, to the integration of ERP, and the future addition of a financial system — this is Kanghui's ongoing journey of building digital capabilities.

From a single machine to a full production line; from a production line to an entire factory. ZOJE, with its sewing equipment, hanging systems, and digital solutions, is helping Kanghui enhance production coordination capabilities and explore more efficient, stable, and reliable paths for cleanroom garment manufacturing.

ZOJE — Making Intelligent Garment Manufacturing More Reliable.

作者：钟品雯

审校：苏庆先

终审：郑学国