Flexible
Capacity configuration to meet customer needs
30 Years
Professional eyewear manufacturing experience
Industry leader
Always at the forefront of eyewear manufacturing
Industry &
trade integration
Integrated service from production to trade
Production
The first step in manufacturing a metal frame is to create the mold that makes up the core.
It is made by carving a piece of metal.
Production
Metal frames are produced from molds, but those with detailed decoration can also be laser cut out.
All the work is done by machines.
Production
In different steps, weld together the front frame and other metal components.
Welding is done by hand.
Production
As the drum rotates, the surface is polished, creating a moderate roundness and shine.
The chips in the roller come in various types and shapes, and they change their formulation depending on the season, temperature, and weather.
Production
Hand polishing it to a mirror finish with a cloth block and abrasive paste.
Without the use of machines, it is polished one by one by hand, giving off a unique shine.
Production
The injection is the processing method used for polymers.
Plastic in different colored grains is fused and injected into molds through the presses to obtain semi-processed frames.
Production
A metal core bar will be inserted inside the acetate frame.
A special machine is used to heat the metal at high temperatures to ensure the perfect insertion of the acetate.
Production
Attach the hinge to the temples.
The skilled, delicate and precise work of artisans is irreplaceable and part of every production phase.
Production
Oil, grease, wax and other solvent-soluble dirt are removed.
Ultrasound & solvent.
Production
Unfinished frame special compartment in varnish.
Clean rooms.
Production
Transfer the pattern on top of the electrified aluminum to the glue holder by heat and pressure.
Clear and sharp edges of the stamped image.
Production
Cutting of the lenses by high-tech precision machines.
Workers are trained in a range of techniques to process a wide variety of products, ensuring strict quality control of the finished product.
Production
The laser engraving is required by the authorized brand.
Using relevant machines that help workers to fill the engraving with various colors or effects.
Q1: What is your production capacity for OEM/ODM sunglasses orders?
Our total annual output exceeds 20 million pieces. For our primary injection styles, our capacity is between 800,000 and 1,000,000 pieces per month, while our metal production lines output 400,000 to 600,000 pieces per month. This large-scale capability allows us to support high-volume orders for global supermarkets and chain stores reliably.
Q2: What kind of customization services do you provide for fast-fashion brands?
We offer a complete product and packaging one-stop service. Our R&D team develops over 50 new sample designs per month based on market research and trend analytics. We fully support custom frames, lenses, and LOGO customization to match your exact brand identity.
Q3: How long is the typical lead time for samples and bulk production?
We pride ourselves on speed and efficiency. We offer fast sample-making within 7 to 15 days. If your project requires a new mold, it typically takes 20 to 30 days. For bulk order production, our standard lead time is 30 to 60 days.
Q4: Do your sunglasses meet international quality and safety standards?
Absolutely. We strictly follow quality control steps from raw materials (IQC) to finished products (OQC). Our factory and products hold comprehensive professional qualification certificates, including CE, FDA, ISO 9001, ISO 13485, BSCI, SMETA, and the Global Recycled Standard.
Q5: Do you have experience working with major global retailers?
Yes, Wenzhou Zhantai Glasses has over 30 years of company history and extensive experience manufacturing for top supermarkets, ecommerce platforms, and global brands. Our recognized quality control has earned us partnerships with industry leaders like Walmart, Disney, Muji, Safilo, and QUAY. By working with us, you receive factory prices with no middlemen.
Q6: What types of eyewear materials do you manufacture?
We work with a wide variety of materials across our 3 production lines. Our capabilities include injection PC and TR, metal, acetate, and eco-friendly materials. This diverse material expertise allows us to meet the specific price points and design requirements of different fast-fashion brands and supermarkets.
Q7: What are your main product categories?
Our main products are sunglasses, optical glasses, and reading glasses. While we specialize in injection sunglasses for retail chains, we also have dedicated production lines for optical frames and reading glasses to provide a comprehensive eyewear catalog.
Q8: What is your Minimum Order Quantity (MOQ)?
As an OEM/ODM factory focusing on large-scale production, our standard MOQ is 1200 pieces per model for 3-4 colors. However, we offer flexible solutions for trial orders or specific customization needs. Please contact our sales team to discuss your project.
Q9: Do you have manufacturing facilities outside of China?
Yes, we do. In addition to our main 10,000-square-meter headquarters in Wenzhou, China, we also operate a specialized manufacturing facility in Thailand. Having a dual-country production strategy allows us to provide our global clients with highly flexible supply chain solutions, optimize import logistics, and mitigate international trade risks (such as tariffs). This ensures uninterrupted, high-capacity delivery for major supermarkets and brands.
Q10: What is your company’s background and manufacturing scale?
Wenzhou Zhantai Glasses was founded in 1990, giving us over 30 years of deep expertise in eyewear manufacturing. Our headquarters covers a construction area of over 20,000 square meters and employs more than 500 skilled workers. Thanks to the trust of our global clients, we maintain a highly stable operational status; our annual turnover continues to grow steadily, reaching $40 million in 2025, with a projected figure of $45 million in 2026. We are a financially strong and scalable partner ready for long-term collaboration.
Let’s build your vision together. Backed by 30 years of manufacturing excellence, Zhantai Glasses offers the quality and customization your brand needs to stand out. From concept to global distribution, we handle the details so you can focus on growth.
Let's collaborate for exceptional eyewear. We look forward to a meaningful collaboration.
Wenzhou Zhantai Glasses
Beiwei No.2 Street, Ouhai District, Wenzhou City, Zhejiang Province, China.
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