Custom Metal Shims

Metal shims play a critical role in many industries, serving as essential components for adjusting spacing and minimizing movement between mechanical parts. These small yet vital pieces are used in various applications, including aerospace, automotive, electronics, and industrial machinery. Shims are typically designed to provide precise gaps between surfaces, ensuring smooth operation, reduced wear, and increased longevity of mechanical systems.

At TONGJIN Technology, we specialize in the design and manufacture of high-precision custom metal shims. Whether your needs are for industrial-grade shims or precision-crafted components for delicate machinery, our team offers tailored solutions to meet exact specifications. Our state-of-the-art chemical etching technology guarantees burr-free, highly accurate, and cost-effective results, ensuring that your equipment operates at optimal performance.

Manufacturing Process

The production of custom metal shims at TONGJIN Technology is rooted in our advanced chemical etching process. This method ensures high precision, flexibility, and efficiency, making it the ideal choice for manufacturing shims of varying shapes and complexities.

Chemical Etching

Chemical etching is a subtractive manufacturing process that involves the controlled removal of metal using chemical solutions. Unlike traditional machining techniques such as stamping or laser cutting, chemical etching provides several distinct advantages, especially for precision parts like metal shims.

Why Chemical Etching?

• Burr-Free Results: Traditional methods like stamping can leave burrs or rough edges on the metal surface, compromising the fit and performance of the shim. Chemical etching, however, eliminates this issue, delivering clean and smooth edges every time.
• Cost-Effective for Customization: With chemical etching, there’s no need for expensive tooling. This makes it cost-efficient for both low-volume prototypes and large-scale production runs.
• Precision and Accuracy: Chemical etching allows for extremely tight tolerances, often as fine as ±0.020mm. This ensures that each shim fits perfectly within its mechanical assembly, improving the system’s overall reliability and efficiency.
• Fast Turnaround: By eliminating the need for physical tooling, the chemical etching process can quickly move from design to production, allowing for a fast and efficient workflow.

Materials

At TONGJIN Technology, we understand that different applications require different materials. That’s why we offer a wide variety of metal options for our custom shims, each carefully selected to meet the specific demands of your project.

Stainless Steel Shims

Stainless steel is one of the most popular materials used in shim production due to its durability, corrosion resistance, and high strength-to-weight ratio. Stainless steel shims are ideal for applications where exposure to moisture, chemicals, or extreme temperatures is common.

Aluminum Shims

Aluminum is lightweight yet strong, making it an excellent choice for industries that prioritize weight reduction without sacrificing structural integrity. Aluminum shims are widely used in aerospace and automotive applications due to their superior machinability and corrosion resistance.

Copper Shims

Copper shims are highly conductive and malleable, making them suitable for electrical and thermal applications. They are commonly used in electronics, heat sinks, and RF shielding. Copper’s ability to conduct heat and electricity efficiently ensures that it remains a preferred material for specialized uses.

Brass Shims

Brass offers excellent corrosion resistance and workability, making it a good choice for decorative and functional purposes alike. Brass shims are often employed in architectural designs, marine applications, and precision instruments where aesthetics and durability are equally important.

Benefits of Custom Metal Shims from TONGJIN Technology

The precision and quality of your shims can have a direct impact on the performance of your machinery or equipment. At TONGJIN Technology, our custom metal shims offer several key benefits:

Precision Tolerances

One of the primary advantages of choosing TONGJIN Technology for your shim production is our ability to achieve extremely tight tolerances. With tolerances as precise as ±0.020mm, our shims ensure perfect fits between components, minimizing movement and enhancing mechanical efficiency.

Burr-Free and Smooth Edges

Thanks to our chemical etching process, our shims are manufactured burr-free, eliminating the risk of sharp edges damaging nearby components or affecting the assembly. This results in a smoother installation process and increased longevity for both the shims and the machinery in which they are used.

Quick Production Turnaround

With our chemical etching capabilities, we can move quickly from design to production, offering fast turnaround times without compromising on quality. Whether you need a small batch for a prototype or large quantities for mass production, we can meet your deadlines.

Cost-Efficient Solutions

Custom metal shims produced through chemical etching are more affordable than those produced through traditional machining methods, especially for intricate designs or low-volume orders. Without the need for expensive tooling, the costs are reduced significantly while maintaining high precision.

Flexibility in Design

Our process allows for flexibility in the design and production of shims, including complex geometries, thin or thick profiles, and a range of material options. No matter how unique your requirements are, we can deliver shims that meet your exact specifications.

Forming & Finishing Services

Beyond etching, TONGJIN Technology offers a variety of forming and finishing services to enhance the performance and appearance of your custom metal shims.

Electropolishing

Electropolishing is a process that smooths and polishes the surface of the metal, removing any imperfections and enhancing corrosion resistance. For applications that demand a flawless finish, electropolished shims offer superior surface quality.

Passivation

Passivation is an additional treatment that improves the corrosion resistance of stainless steel shims. By removing free iron and other contaminants from the surface, passivation extends the life of the shims and makes them more suitable for harsh environments.

Electroplating

For industries that require enhanced conductivity or protection against wear and corrosion, we offer electroplating services. This process involves coating the surface of the shim with a thin layer of metal, such as nickel or gold, to improve its properties.

Custom metal shims are indispensable components that ensure precision and reliability in a wide range of mechanical assemblies. At TONGJIN Technology, we leverage advanced chemical etching techniques to produce high-quality, burr-free, and highly accurate shims tailored to your specific needs. With a variety of materials and finishing options available, our custom metal shims are designed to optimize performance, longevity, and cost-effectiveness across numerous industries. Contact us today to learn more about our custom shim solutions and how we can support your next project.