Radial Tire Industry Solution

In the radial tire industry, wire drawing dies are critical for producing precise, smooth steel cords that ensure tire strength, flexibility, and superior rubber bonding performance.

Radial Tire Industry (Steel cord for tire reinforcement)

Ensures ultra-fine and uniform steel cords (typically 0.15–0.38 mm), enhancing the tire’s load-bearing and pressure resistance.
Produces smooth surfaces ideal for subsequent coating processes (e.g., brass plating), improving bonding with rubber.
High-quality dies (such as PCD dies) enable high-speed drawing with excellent dimensional stability and reduced wire breakage.
Suitable for step-by-step diameter reduction from thick steel wire to final steel cord specifications.

Recommended Wire Drawing Dies Products

Choosing the appropriate wire drawing die material is crucial for improving production efficiency, extending die life, and ensuring wire quality when drawing copper and aluminum wires.

Feature	Nano Wire Drawing Die	Pressure Wire Drawing Die	PCD Wire Drawing Die
Structure & Material	Tungsten carbide (WC-Co) base with CVD-deposited nano-scale diamond composite coating	Tungsten carbide with specially designed pressure geometry	Polycrystalline diamond (PCD) formed by sintering diamond particles under high temperature and pressure
Wear Resistance	High – 5 to 10 times longer lifespan than standard carbide dies	Moderate – suitable for mid-strength wire drawing	Very high – ideal for long production cycles
Surface Finish	Excellent – ultra-smooth with low friction, minimizes damage to wire structure	Good – reduces surface scratches and internal stress	Good – maintains consistent surface quality over time
Dimensional Accuracy & Stability	Excellent – stable bore size reduces downtime and die replacement	Moderate – suitable for general tolerance requirements	Excellent – reliable for consistent long-run diameter control
Application Scope	Ideal for ultra-fine steel wire (e.g., <0.15 mm), especially for premium radial tire manufacturing	Used in intermediate drawing passes to improve material flow	Standard die for mass production of steel cords
Cost & Maintenance	Higher upfront cost, but lower long-term cost due to longevity; not suitable for repolishing	Moderate cost; easy to refurbish and maintain	Higher cost, but offset by durability; can be polished multiple times
Typical Use Case	Precision drawing of high-end steel cords for premium radial tires	Mid-stage drawing to optimize material deformation and flow	General-purpose drawing for large-scale steel cord production

Nano Wire Drawing Die: Utilizes CVD technology to deposit nano-diamond coatings on carbide dies, offering superior wear resistance and surface finish. Best suited for high-precision drawing of ultra-fine steel cords in premium radial tire production.
Pressure Wire Drawing Die: Designed with pressure geometry to enhance material flow and reduce drawing stress. Ideal for intermediate steps in multi-pass wire drawing, especially when processing high-strength steel wires.
PCD Wire Drawing Die: Made from polycrystalline diamond, known for its exceptional hardness and dimensional stability. Widely used in mass production of steel cords for radial tires.