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DOING HOLDINGS
Henan Doing Environmental Protection Technology Co., Ltd
E waste recycling machine manufacturer
June 11, 2026We signed a new contract on June 3, 2026. A customer in China bought a 400-500 KG/H China PCB recycling machine line from HENAN DOING.
The customer already runs an auto dismantling yard that handles about 20,000 vehicles a year. Over time, they had been collecting a lot of scrap circuit boards from those cars. They wanted to process those boards themselves, mainly to recover the precious metals inside. What mattered most to them was the metal recovery from automotive waste circuit boards. They didn't want to leave much value behind after processing.
They first contacted us on May 25. On May 28, they came to our factory. We had a complete set of China PCB recycling machine line ready for them to see and test with their own material. They liked that they could touch and run it right there. On May 29 we worked on the contract details, and by June 3, everything was signed. The whole thing took just over a week.
Chinese clients visit the DOING factory
Before coming to us, they had looked at two or three other suppliers. In the end, they picked DOING for a few simple reasons. We are in the same country, so travel and communication were easy. They saw the car dismantling e-waste equipment in China in person and trusted our workshop quality. And they liked how the machine performed during the test.
Here is how our China PCB recycling machine line works and why it gave them the recovery rate they wanted:
Before the main crushing step, customers can also add an optional electronic component dismantling machine. This unit removes reusable parts like IC chips, capacitors, and connectors from circuit boards. These components can sometimes be sold separately or reused, which adds extra value. And this dismantling machine is available as a standalone unit if someone only needs that function.
Electronic component dismantling machine
DOING pcb recycling machine line uses multi-stage crushing – a shredder first cuts whole boards into 2-5 cm pieces, then a hammer crusher breaks those down to under 1 cm, and finally a hammer mill grinds everything to smaller than 4 mm. This step helps separate metal from non-metal material as much as possible. After that, an air separator pulls out about 95% of the metal, and then an electrostatic separator collects most of the remaining metal that is still mixed in the resin powder. Together, the total separation rate reaches about 99%, which is exactly what good metal recovery from automotive waste circuit boards looks like. The line also includes a cyclone dust collector and a pulse-jet bag filter, which handle both large and fine dust with automatic collection. So the operation stays clean and meets local environmental requirements. This is how reliable car dismantling e-waste equipment in China should perform.
DOING pcb recycling machine line
The customer also mentioned they felt comfortable working with our team. Our engineers answered their questions clearly, and we offer practical after-sales support like installation help, on-site training, and spare parts.
If you run a dismantling yard or process e-waste and want strong metal recovery from waste circuit boards, this is the kind of result you can expect with the right equipment. DOING pcb recycling machine line ready for testing, and we are happy to show you how it works. Feel free to contact HENAN DOING if you want to talk about your own circuit board recycling needs.
If you want to get more details, you can send E-mail to market@doinggroup.com. Or you can consult our professional engineers and specialized sales team by leaving a message in below form. We will contact you ASAP.