Coolervie is a wire drawing die manufacturer based in Tianchang, Anhui, China. Since 2003, we have focused on manufacturing and supplying wire drawing dies for wire and cable production, including diamond, polycrystalline diamond (PCD), tungsten carbide, and specialty die solutions.
Our capabilities cover die material selection, core mounting, internal profile processing, polishing, and quality inspection, depending on the product type and specification. We also support customers with die selection, custom tooling requirements, die reconditioning, and wire drawing process guidance.
Our goal is to help wire manufacturers select suitable tooling based on their wire material, target diameter, drawing conditions, and quality requirements.
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Who We Are？
Genuine Manufacturer, Not a Trading Company
Established in 2003 and located in China's premier machinery manufacturing hub, Coolervie is a professional wire drawing die manufacturer integrating R&D, production, and global sales. For over two decades, we have focused on a single mission: engineering solutions for smoother wire drawing and maximizing die lifespan.
Our products are widely trusted in industries including electrical wire and cable, steel wire ropes, tire cords, stainless steel micro-wires, and tube drawing. Whether you require standard specifications or custom-shaped dies, our engineering team provides the optimal pass schedule design tailored to your specific drawing material.
Core Philosophy: Zero compromise on raw materials, zero shortcuts in quality inspection.
World-Class Manufacturing Capabilities
Premium Raw Materials
At Coolervie, superior dies start with superior cores. We partner with top-tier suppliers like Element Six and Sumitomo, ensuring every cylindrical PCD and ND blank delivers exceptional wear resistance and drawing stability.
Advanced Laser Drilling
We utilize imported high-precision laser drilling and wire EDM machines. This technology ensures flawlessly smooth transitions from the reduction angle to the bearing zone, entirely eliminating micro-cracks during processing.
Ultrasonic Polishing
Executed by master technicians with over 15 years of experience. Our sizing zones achieve a mirror-level finish (Ra ≤ 0.05), drastically reducing wire breakage and guaranteeing flawless output wire surfaces.
Uncompromising Quality Control (QC)
Every Die Has Its Own "Health Report"
At Coolervie, inspection isn't just the final step—it is integrated into our entire workflow. We operate under a strict ISO 9001:2015 quality management system. Our ultimate goal is predictable, precise reduction, ensuring the transition from the input wire diameter to the accurate, smaller output wire diameter is executed flawlessly.
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Profile Measurement: Utilizing advanced laser profiling systems to 100% verify the reduction angle and the length of the cylindrical bearing zone.
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Diameter Inspection: Using precision micrometers and laser gauges, we control hole tolerances strictly to ±0.001mm or to your exact custom demands.
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Surface Finish Verification: Each die is inspected under 200x high-magnification microscopes to eliminate any microscopic scratches, chipping, or internal defects.
Technical Support for Wire Drawing Process Optimization
Experiencing frequent wire breaks, wire shrinkage, or premature die wear? Often, the root cause isn't the die material itself, but an unoptimized Pass Schedule.
At Coolervie, we don't just sell dies; we solve drawing bottlenecks. Our technical team provides free, customized pass schedule designs tailored to your specific material (copper, aluminum, stainless steel, tungsten, etc.), drawing speed, and area reduction rate.
We meticulously calculate the reduction ratios to guarantee the output wire diameter is perfectly and safely reduced from the input diameter. By optimizing the reduction angle and maximizing the efficiency of the cylindrical functional insert, we ensure your drawing machines run at peak performance with minimal downtime.
* Our engineers will respond with a tailored analysis within 24 hours.