Import Doctor Blades — Buy in Bulk from Supplier in China

The Shanghai King-Boss Printing Equipment Co., Ltd. Doctor blades are precision-engineered components made from high-carbon spring steel, sourced from Germany. These blades are designed for use in flexographic and gravure printing presses, where consistent ink control and minimal wear are critical. The material selection ensures high resilience and resistance to deformation under pressure, allowing for extended operational life without frequent replacement.

High-carbon spring steel typically contains 0.6% to 0.8% carbon and is heat-treated to achieve a hardness range of 52 to 58 HRC. This provides the necessary balance between flexibility and edge retention. The blades are ground to tight tolerances, often within ±0.01mm, to ensure uniform ink metering. Standard widths range from 50mm to 120mm, and thicknesses from 0.15mm to 0.35mm, depending on press configuration. Unlike composite blades, this steel variant requires regular honing to maintain edge sharpness.

Buyers in the packaging, label, and commercial printing industries use these blades for high-speed printing operations requiring precise ink layer control. Minimum order quantities are flexible, and blades are available in custom lengths and edge profiles. The supplier indicates compatibility with major press brands including MBO, KBA, and Manroland. Buyers should confirm whether blades are supplied pre-honed or require final edge preparation before installation.

Shanghai King-Boss Printing Equipment Co., Ltd. is a manufacturer based in Shanghai, with a registered address in the Shuangyang Road industrial zone. The company is classified as an imported supplier, suggesting it sources components or materials from abroad, specifically German steel. It does not publish its founding date, workforce size, or financial metrics. Its listing does not include ISO certification, client names, or export history, despite claims of international compatibility.

The supplier does not disclose its production capacity, testing protocols, or quality control procedures. No response rate or average response time is recorded, indicating limited digital engagement. While the product description references German steel and performance claims, the company provides no documentation to verify material origin or heat treatment process. Buyers must request material certificates and hardness test reports directly before committing to bulk orders.