PRODUCTS

Dongguan Tongtoo Aluminum Products Co., Ltd. specializes in aluminum alloy CNC precision machining, injection molding, mold development, and metal manufacturing. We are ISO 9001 certified and strictly implement the 6S management system. Using equipment imported from Germany, our products are exported to over 20 countries, including Europe, America, and Southeast Asia, with an average annual delivery volume exceeding 5 million units. With exquisite craftsmanship, rapid response, and end-to-end quality inspection at our core, we provide customized ODM/OEM solutions to our global customers, striving to become a trusted strategic partner in the international industrial manufacturing sector.

Product Introduction

We are a manufacturer of optical lens metal parts with our own CNC precision machining facility and anodizing plant. We specialize in turning aluminum rings, lens barrels, and focusing rings. Through integrated production, we strictly control anodizing color variability and support a variety of custom colors. We provide high-precision components for optical instruments, laser equipment, and medical endoscopes.

Product Description:

Ultra-high-precision turning processing utilizes imported CNC turning and milling centers, committed to optical-grade precision. We can process a variety of metal materials, including aluminum alloy, stainless steel, and titanium alloy, with dimensional tolerances strictly controlled within ±0.01mm, ensuring a perfect match with optical lenses and ensuring lens imaging stability. In-house anodizing with controlled color variability: We have our own in-house anodizing surface treatment workshop, breaking the "black box" of outsourced production. Through standardized chemical solution ratios, current, voltage, and time control, we achieve extremely low batch-to-batch color variability (ΔE < 1), effectively addressing color variability issues when assembling multiple components. We offer a complete, one-stop production process, from raw materials to finished product, including turning, milling, drilling, tapping, anodizing, and quality inspection. Eliminate delivery delays and quality fluctuations caused by outsourcing, ensure a stable and reliable supply chain, and support rapid prototyping and mass delivery. Excellent weather resistance and durability. The anodized film features uniform thickness (customizable from 8-25μm) and high hardness (HV>300), corrosion resistance, wear resistance, and anti-fingerprint properties, enabling it to withstand a variety of harsh environments and extend the lifespan of optical products.

Product Features and Applications

Our Technological Advantages and Process Features

Cluster of Cutting-Edge Equipment: We possess 4-axis/5-axis simultaneous turning and milling centers (such as the DMG MORI NTX series and MAZAK INTEGREX series).

Equipped with Swiss-type lathes, we specialize in efficient and precise machining of slender shaft parts.

Our full range of equipment supports C-axis and Y-axis machining, enabling the realization of extremely complex geometric features.

"We are not just a processor; we are a manufacturer with our own factory." From the CNC workshop to the anodizing line, we control every step in-house, which is the source of our absolute confidence in quality.

Leading Color Difference Control Technology: "We deeply understand that color difference is a pain point in the optical industry." Our color management system, developed specifically for optical components, ensures consistent color for every part you order, whether today or next year.

Strong Support Capabilities: We offer customers complete metal parts solutions, including housings and brackets, ensuring highly consistent color and style across all components, enhancing the overall quality of the product and its brand image.

Cost and Efficiency Optimization: Integrated production eliminates intermediaries, reduces communication costs, and increases production efficiency, providing you with more competitive pricing and shorter lead times.

Applications for Precision Optical Lens Metal Parts

Security and Surveillance Lenses: Metal housings and aperture adjustment rings for various specifications of bolt-on and dome cameras.

Machine Vision Lenses: High-precision lens barrels and adapters for industrial inspection equipment, meeting the durability requirements of automated, repetitive installation.

Medical Optical Equipment: Endoscope tubes and microscope focusing mechanisms, meeting high cleanliness and corrosion resistance requirements.

Laser Optical Systems: Laser beam expander barrels and focusing mounts for laser cutting/marking equipment, ensuring excellent heat dissipation and stability. Photography and Surveying Equipment: DSLR/cine lens barrels, drone lens mounts, combining lightweight and durability.

Product Qualification

Environmental Certifications:

RoHS Certification (lead-free, cadmium-free, and other hazardous substances)

REACH (European Union Chemical Safety Directive)

Quality Management System:

ISO 9001:2016/ISO 9001:2015 (production quality control)

Testing Equipment: Zeiss 3D Scanner (0.8μm accuracy)

Delivery, Shipping, and Serving

A professional ODM & OEM manufacturer with over 20 years of precision machining experience, we provide comprehensive, customized services tailored to customer needs.

Standard Packaging: Copy paper + carton

Customized Packaging: Blister tray/PEF + wooden box

Global Export Experience: Familiar with international packaging and shipping standards, we consistently supply our products to global markets, including Europe, America, Japan, and South Korea.

FAQ

Q1: Can you guarantee color consistency across batches in a bulk order?

A: This is our core strength. As we own our own anodizing plant, we have established strict color control standard operating procedures (SOPs) and use colorimeters for quantitative testing. This ensures highly consistent color across large-volume, multi-batch orders, with ΔE values ​​kept within a very tight range.

Q2: What anodizing colors do you support? Can you provide color swatches?

A: We offer custom anodizing in over 100 colors, including black, gray, military green, blue, and red. We can provide standard color swatches for your selection, and we also accept Pantone color numbers or physical samples for benchmarking.

Q3: What is the typical lead time from proofing to mass production?

A: For simple samples, we can deliver within 3-5 business days. Mass production typically takes 2-3 weeks, depending on order quantity. Thanks to our integrated production model, lead times are typically shorter and more manageable than with outsourcing.

Q4: Besides turning, do you offer other machining services?

A: Yes. Our factory is equipped with mill-turn machining centers capable of performing complex milling, drilling, tapping, and other operations. We are capable of producing complex metal parts, providing you with a one-stop solution.

Q5: How do I start a custom project?

A: Simply provide a 2D drawing or 3D model (STEP/IGS format) of your product. Our engineers will review it and provide you with the optimal process solution and quote. Feel free to contact us for inquiries.

Company Introduction

Our 5,000 square meter workshop is equipped with hundreds of CNC machining centers (with machining accuracy up to 0.002 mm), CNC turning and milling machines, CNC lathes, milling machines, lathes, grinders, and more; as well as over a dozen inspection equipment (with inspection accuracy up to 0.001 mm). Our machining capabilities reach internationally advanced levels. The Tengtu team possesses the most professional expertise in mold design and CNC machining. We will work closely with you throughout prototyping, production, assembly, inspection, packaging, and final delivery to exceed your expectations.

Our team uses CNC machining to manufacture high-performance parts for industries such as aerospace, automotive, military, medical, machinery, electronics, and communications. We are committed to innovation, manufacturing and assembling critical components with exceptional precision, tight tolerances, and premium materials. Over the past 11 years, Tengtu has established a strong reputation for efficiency, quality, reliability, and on-time delivery.