Application Case: 40 Steel Roller Track White Wheel in Spare Parts Warehousing

When Lisa, the warehouse manager at a mid-sized 3C spare parts company, walked into her facility one Monday morning, she knew something had to change. The previous week had been a disaster: orders were delayed by an average of 2 hours, workers were complaining about back pain from bending over static shelves, and a customer had returned an order because three parts were missing. Lisa's team needed a solution that wasn't just a quick fix—it had to address the root causes of their inefficiency while fitting into their budget and lean operational goals. That's when she reached out to Sunqit, a supplier specializing in flexible production and storage systems.

Lisa's warehouse stored over 5,000 types of spare parts—from small screws and connectors to larger components like battery packs and screen panels. The existing setup relied on traditional static shelves, which created several pain points:

• Picking Delays: Workers spent 15-20 minutes per order walking between shelves, reaching for parts at the back, and searching through unorganized bins. This meant they could only process 25-30 orders per day.
• High Error Rates: Small parts often got mixed up in bins, leading to a 5% error rate in orders. This not only upset customers but also cost the company time and money in returns.
• Ergonomic Issues: 60% of workers reported back or shoulder pain from bending over low shelves or stretching to reach high ones. This led to increased sick days and low morale.
• Lack of Flexibility: When new parts arrived, the team had to build additional static shelves, which took 2-3 days and wasted valuable floor space. The system couldn't adapt quickly to changing inventory needs.

Sunqit's team conducted a full audit of Lisa's warehouse and proposed a lean solution centered on three key components: 40 Steel Roller Track White Wheel , flow racks , and conveyors , with aluminum profile accessories to ensure stability and flexibility. Here's how each part fit into the plan:

1. 40 Steel Roller Track White Wheel: The Core of the System
The 40 Steel Roller Track White Wheel was chosen for its durability and smooth operation. The white color made it easy for workers to spot parts against the dark bins, reducing search time. Each roller track was designed to hold bins of varying sizes, and the steel construction meant it could handle heavy loads without bending. Sunqit's team installed these tracks on sloped shelves to create a first-in-first-out (FIFO) system—when a worker picked a part from the front, the next part slid forward automatically.

2. Flow Racks: Organized Storage That Saves Time
The roller tracks were integrated into flow racks —modular units that could be adjusted to fit different part sizes. Sunqit used aluminum profile accessories like angle brackets and support beams to build the racks, making them sturdy yet easy to reconfigure. For example, when the warehouse received a new line of larger battery packs, the team simply adjusted the spacing between the roller tracks instead of building new shelves.

3. Conveyors: Bridging the Gap Between Storage and Packing
To eliminate manual carrying, Sunqit installed conveyors connecting the flow racks to the packing station. Workers now place picked parts onto the conveyor, which carries them directly to the packing team. This reduced the time spent walking between areas by 70% and cut down on fatigue.

4. Customization for Lean Goals
One of Lisa's key requirements was that the system align with her company's lean principles—reusability and continuous improvement. Sunqit's solution checked both boxes: all components (roller tracks, flow racks, conveyors) were modular and could be rearranged or reused if the warehouse layout changed. This meant Lisa wouldn't have to invest in new equipment every time her inventory needs shifted.

Sunqit's team worked closely with Lisa's team to ensure a seamless implementation. The process took just 5 days—here's how it unfolded:

1. Day 1-2: Audit and Design. Sunqit's engineers mapped the warehouse layout, measured inventory sizes, and created a 3D model of the proposed system. Lisa and her team reviewed the model and made minor adjustments (like adding more roller tracks for small parts).
2. Day 3: Installation of Flow Racks. The team assembled the flow racks using aluminum profile accessories and installed the 40 Steel Roller Track White Wheel. They also labeled each bin with a QR code to link to the warehouse management system (WMS).
3. Day 4: Conveyor Setup. The conveyors were installed and tested to ensure they ran smoothly between the flow racks and packing station.
4. Day 5: Training and Go-Live. Sunqit's trainers spent the day teaching workers how to use the new system—from picking parts off the roller tracks to using the QR codes for inventory tracking. The system went live by the end of the day.

After 30 days of using the new system, Lisa's team saw remarkable improvements. The table below shows the before-and-after metrics:

Beyond the numbers, the system had a positive impact on worker morale. "I used to go home with a sore back every day," said Maria, a picker at the warehouse. "Now, I just stand in front of the flow rack and the parts come to me. It's made my job so much easier."

Three months later, the system continues to deliver results. Lisa's team has made several small improvements (like adding more conveyors for larger parts) using the modular components from Sunqit. The system's reusability has also saved the company money—when they expanded their inventory by 20%, they simply rearranged the flow racks instead of buying new ones.

Lisa's warehouse transformation shows how the right storage system can turn chaos into efficiency. The 40 Steel Roller Track White Wheel , combined with flow racks , conveyors , and aluminum profile accessories , created a lean solution that addressed all of her team's pain points. Whether you're dealing with picking delays, ergonomic issues, or a lack of flexibility, a modular, flexible system like this can help you achieve your operational goals while staying true to lean principles.