Why did Gu Tai Lao Li choose to partner with Saiyu Technology

to create the HK620(“skeleton door” edge banding machines)?

In the past two years, “skeleton door” edge banding machines have garnered increasing market attention, while the trend of matching colors across doors, wall panels, and cabinetry has emerged as a new standard in high-end custom interiors.

However, anyone with hands-on experience in manufacturing skeleton doors knows that the real challenge lies not in the design, but in the processing.

Producing a single skeleton door profile previously required multiple steps—such as edge banding, profile milling, and cutting—resulting in low efficiency and inconsistent quality. Many factories had to rely heavily on skilled labor, which limited production capacity and made material waste inevitable.

Having been deeply rooted in the industry for years, Gu Tai Lao Li understood these issues better than most.

Through daily interactions with clients, constant market analysis, and firsthand observation of the production hurdles factories faced, he became increasingly convinced of one thing: the industry needed specialized equipment designed specifically for skeleton door profiles.

Saiyu Technology, meanwhile, has remained steadfast in its commitment to a single mission: independent research and development.

We believe that innovation is not about being different for the sake of it, but about genuinely solving customer problems.

It is this shared philosophy that brought Gu Tai Lao Li and Saiyu Technology together.

One side operates on the front lines of the market, understanding exactly what customers need; the other focuses on mechanical R&D, turning those needs into reality.

Following a process of continuous communication, optimization, and testing, the HK620 “skeleton door” edge banding machine has officially arrived.

It is neither a mere upgrade of a traditional edge banding machine not a simple combination of existing machines; rather, it represents a redefined production method tailored to the specific processing requirements of “skeleton door” profiles.

A single machine handles the entire workflow—from edge banding and profile milling to final cutting—transitioning production from manual labor to automation. This ensures greater process stability and higher efficiency, while also enabling more enterprises to enter the “skeleton door” market.

This marks not just the launch of a new machine, but the result of a revolution in manufacturing processes.

For we have always believed:

Innovation creates value.