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Core Application Scenarios of Internal Pipe Coating Machine

2025.11.11

Author：internal pipe coating machine

Internal pipe coating machines are specialized equipment used for coating the inner walls of pipelines. Their core function is to achieve efficient and uniform anti-corrosion or functional coating application through automation technology. They are widely used in energy, municipal, and chemical industries.

1. Urban Water Supply and Drainage Pipelines

Requirements: New ductile iron pipes, steel pipes, or concrete drainage pipes require internal anti-corrosion treatment to prevent rust and scaling, ensuring water quality and flow capacity.

Solution: The spraying machine applies the coating in sections during pipeline connection, forming a continuous anti-corrosion layer; for old pipe repair, CIPP technology is used in conjunction with the spraying process to achieve trenchless repair.

2. Oil and Gas Pipelines

Requirements: Long-distance buried steel pipes require anti-corrosion and drag reduction (reducing friction between crude oil and the pipe wall, reducing pumping energy consumption).

Solution: High-performance epoxy resin or two-component polyurethane coating is applied to form a smooth, dense functional layer.

3. Process Piping in the Chemical and Pharmaceutical Industries

Requirements: Transporting corrosive, high-purity, or highly clean materials; the inner wall must be absolutely smooth, without dead corners, easy to clean, and the coating must be chemically resistant and non-toxic.

Solution: Using a high-cleanliness spraying machine to apply food-grade epoxy, PTFE, or other special coatings.

4. Power Plant Flue Gas Desulfurization System Piping

Requirements: The slurry flowing in the pipeline contains chloride ions and gypsum particles, exhibiting strong corrosiveness and physical abrasion; ordinary steel pipes are easily worn through.

Solution: Spraying with ultra-thick slurry-type epoxy glass flake coating or wear-resistant ceramic coating.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about internal pipe coating machine, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

Email: qdcajx@gmail.com