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Yantai Yunde Intelligent Technology Co., Ltd. has only 30 years of production experience, has served more than 300 domestic and foreign customers, and has produced more than 2,000 machines.
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Rough straightening +peeling+ precision straightening
The black bars are pre-straightened using a rough straightening machine with hydraulic protection, then processed by a peeling machine to obtain bright bars, and finally processed by a precision straightening machine to achieve higher straightness and surface finish.
Uncoil+peeling+cutting off+straightening production line
The wire rod is unwound using an uncoiler or payoff reel, then the scale is removed by a peeling machine. The wire is then cut to the required length using a cutting machine, and finally, a straightening machine is used to achieve better straightness and surface finish.
Uncoiling and Pre-straightening+Continuous Drawing and Forming+Precision Straightening+Surface Finishing
Uncoiling and Pre-straightening: The coiled raw material is unwound and preliminarily straightened to relieve internal stresses.
Continuous Drawing and Forming: Through a multi-die continuous drawing process, the material’s cross-section is reduced while its length is elongated, achieving single-pass forming.
Precision Straightening: A secondary, high-precision straightening step is performed post-drawing to ensure straightness (typically <0.30 mm/m).
Cut-to-Length: The material is automatically cut to the required length with high precision.
Surface Finishing: Polishing and/or burnishing operations are conducted to enhance surface finish (Ra <1.6 μm).
Finished Product Collection: Automatic stacking and bundling complete the full automation of the entire process workflow.
