About Us

DOING HOLDINGS CO.,LTD​ is professional manufacturing enterprise which gathers research & development, design, production, sales, installation and after-sales service in one. DOING's main business scope involves two industries: pyrolysis plant and cooking oil machine.

With mature production technology, through the unremitting technological innovation, our machines have obtained the customers' approval from more than 60 countries around the world.

Pyrolysis Plant

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Pyrolysis plant

Pyrolysis plant can pyrolyze waste tires and plastics into pyrolysis oil, non-condensable gas and carbon black under high temperature. You can extract diesel from pyrolysis oil by our waste oil to diesel plant. In addition, we also provide tire cutting machine, tyre doubling & unpacking machine, copper wire recycling machine and related auxiliary equipment.

Cooking oil machine

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Cooking oil machine

Cooking oil machine manufactured by Henan Doing Company includes cooking oil processing machine, cooking oil solvent extraction machine, cooking oil refining machine, suitable for processing soybean oil, groundnut oil, sunflower oil, rice bran oil, cottonseed oil, corn oil, sesame oil, palm oil, palm kernel oil, etc.

WhatsApp: +8613526692320