Case Study: Custom Carbide Nozzles for a KoreanBattery Manufacturer

1. Project Overview

This case study introduces our customized tungsten carbide nozzles project for a professional Korean lithium battery manufacturer. The client specializes in new energy battery component production and requires high-precision, wear-resistant carbide nozzles for battery coating and injection molding processes.

Due to high-frequency continuous industrial operation, standard nozzles cannot meet their strict requirements on abrasion resistance, hole concentricity, surface smoothness and service life. Our team provided fully customized carbide nozzle solutions, including custom dimensions, inner hole precision polishing, special carbide grade formulation and batch stable production.

2. Client Challenges & Industry Requirements

Battery manufacturing belongs to high-standard new energy industry, which puts forward extremely strict demands on nozzle accessories. The Korean client faced the following problems with traditional nozzles:

• Short service life: Ordinary material nozzles wear quickly, causing frequent replacement and production downtime.
• Poor inner hole smoothness: Unpolished inner holes lead to uneven battery material injection and coating defects.
• Unstable tolerance: Batch dimensional errors affect equipment assembly accuracy.
• Low corrosion resistance: Unable to adapt to long-term contact with chemical battery materials.

The client required custom carbide nozzles with ultra-high wear resistance, zero-defect inner hole finish, precise concentricity and consistent batch performance to ensure stable battery production quality.

3. Customized Carbide Nozzle Solution

According to the client’s drawings and working environment parameters, we formulated a targeted custom carbide nozzle solution.

• Custom Carbide Grade: Adopted high-density, corrosion-resistant WC-Co alloy grade with optimized cobalt ratio, greatly improving wear resistance and chemical stability for battery industry working conditions.
• Custom Outer Diameter & Length Tolerance: Strict precision control to ensure perfect matching with automated battery production equipment.
• Ultra-Polished Inner Hole: Fine mirror polishing for inner hole, eliminating burrs and tool marks to ensure smooth and uniform material flow.
• High Concentricity Processing: Controlled hole position deviation to meet high-precision industrial injection standards.
• Batch Consistency Customization: Unified production parameters to guarantee zero difference in hardness, size and surface quality of each batch.

4. Strict Tolerance & Surface Quality Control

For new energy battery industry accessories, precision and stability are the core indicators. We implemented full-process precision control for this custom nozzle project.

• Dimensional tolerance controlled within ±0.005mm
• Inner hole surface mirror polished, no scratches, no residual tool marks
• Strict concentricity and verticality testing
• Hardness and density sampling inspection for each production batch
• 100% full inspection before delivery to eliminate defective products

All finished carbide nozzles achieved stable performance, fully meeting the client’s high-standard battery production requirements.

5. Production & Custom Machining Process

All custom carbide nozzles are produced with our full in-house production process, from virgin raw material proportioning, high-temperature sintering, precision grinding, inner hole finishing to mirror polishing and final inspection.

Compared with suppliers relying on outsourcing processing, our integrated production mode avoids intermediate quality risks, ensures stable mechanical properties and highly consistent surface effects for customized products. We also completed customized cutting, fine chamfering and surface finishing according to customer drawings.

6. Final Testing & Customer Feedback

After batch delivery and installation testing by the Korean battery manufacturer, our custom tungsten carbide nozzles showed excellent performance in actual production lines.

• Service life increased significantly compared with previous nozzles
• Battery coating and injection process became more stable
• No blockage or uneven flow issues occurred
• Batch consistency highly recognized by client quality department

The client confirmed long-term cooperative procurement plans for follow-up batch orders.

7. Conclusion

This custom carbide nozzle project for the Korean battery industry fully proves our capability in high-precision tungsten carbide customized parts production. With independent formula adjustment, full-process precision machining and strict batch quality control, we can provide stable, durable and industry-specific carbide component solutions for new energy, automation and precision equipment fields.

Whether standard carbide products or complex non-standard custom parts, we support one-stop custom manufacturing to meet different industrial clients’ high-precision demands.

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Precision Custom Carbide Nozzles & Parts

We provide custom tungsten carbide nozzles, carbide pins, carbide rods and special-shaped carbide parts for battery industry, automation, machinery and industrial equipment. Support drawing customization, strict tolerance control and batch stable supply.

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