Import Comma Scraper — Buy in Bulk from Supplier in China

The Comma scraper is a precision industrial blade designed for material removal and surface cleaning in high-tolerance manufacturing environments. Built by Shanghai Donghui Roller Machinery Co., Ltd., it features a hardened steel construction for prolonged wear resistance in continuous operation, with a typical blade thickness range of 0.5 mm to 1.5 mm for standard applications. The tool integrates a replaceable insert system, allowing operators to swap worn edges without replacing the entire assembly, which reduces downtime in production lines.

Manufactured from alloy tool steel, the scraper meets typical industry hardness ratings of 58-62 HRC, ensuring consistent performance against abrasive materials like rubber, plastic or composite coatings. The edge geometry is optimized for scraping without gouging, with a standard bevel angle of 15 to 20 degrees for balanced durability and sharpness. Common variants include straight, angled and hook designs to suit different access requirements in machinery maintenance or production workflows.

This tool is widely adopted in printing, rubber rolling and surface treatment sectors where precise material removal is critical. Buyers in automotive and aerospace industries use it for deburring and cleaning molds, while packaging manufacturers rely on it to maintain roller surfaces. Trade terms for this listing are flexible, with the supplier offering FOB Shanghai as a standard Incoterm. Confirm packaging options and batch sizes directly with the supplier, as these are tailored to order volume and destination port.

Shanghai Donghui Roller Machinery Co., Ltd. operates from No.639, Chunnong Road in the Huangdu Industrial Zone of Shanghai, China. The company specializes in industrial machinery components, with a focus on rollers, scrapers and associated tools for manufacturing and maintenance applications. Its imported tier classification indicates a supplier with imported raw materials or technology, which may influence product consistency and performance.

The supplier currently shows a harbor trust tier and has not yet established a response rate or average response time on the platform. This means buyers should expect to initiate contact directly and may need to follow up to confirm technical details, lead times or trade terms. The company’s address and operational base in Shanghai suggest proximity to major ports, which can simplify logistics for international shipments.