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Plastic Miniature Transparent Box Injection Molding

Plastic Miniature Transparent Box Injection Molding

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Mold Making & Plastic Injection One-stop Service

Yuyao Hualong Moulds & Plastic Products Co.,Ltd.

Yuyao Hualong Moulds & Plastic Products Co.,Ltd. was established in 1988. At present, there are 15 plastic injection molding machines from 100g to 3500 g, more than 20 mold manufacturing equipment such as machining centers, and more than 20 testing equipment and other auxiliary equipment. As leading Plastic Injection Molded Miniature Transparent Box manufacturers and Miniature Transparent Box factory in China, We have 100 employees and more than 30 managers and professional technicians.

After over 30 years of indomitable efforts, with the molds-making and plastic products-processing as the mainstay, our company has implemented a service for product development, mold-designing and making, plastic injection-molding and finished product-assembly in a coordinated process. Hualong mold has long history of serving European and American high-quality brands and well-known public companies at domestic and abroad. We custom make injection molded Plastic Miniature Transparent Box. Customized products involve all kinds of instruments, equipment accessories, industrial automation and intelligent equipment of the Internet of things, auto accessories, kitchen appliances, household products, etc. Products are widely used in power, communications, security, automotive, aerospace, medical, life and other different fields.

We have gained certifications of ISO9001, ISO16949 quality management system and ISO14001 environmental management system. OEM/ODM plastic injection molded Miniature Transparent Box. We accept annual factory inspection of clients, and conduct ECOVADIS audits on environment, labor and human rights, business ethics and sustainable procurement.

Customized Service Custom Advantage

Custom Process

  • Drawings or Samples

    We get the drawings or samples from customers.

  • Drawings Confirmation

    We will draw the 3D drawings according to the customers' 2D drawings or samples,and send the 3D drawings to customers for confirmation.

  • Quotation

    We will quote after getting the customers' confirmation,or quote directly according to customers' 3D drawings.

  • Making Molds/Patterns

    We will make molds or pattens after getting the mold orders from the customers.

  • Making Samples

    We will make real samples using the molds and send to customers for confirmation.

  • Mass Producing

    We will produce the products after getting the customers' confirmation and orders.

  • Inspection

    We will inspect the products by our inspectors or ask the customers to inspect together with us when finished.

  • Shipment

    We will ship the goods to the customers after getting the inspection result ok and the customers' confirmation.

Every certificate witnesses our profession


  • ISO45001
  • ISO14001 Environmental Management System Certification
  • IATF16949 Automotive Industry Quality Certification
  • ISO9001 Quality Management System Certification
  • Sustainability Rating
  • POM F20-02 ROHS SGS Report

Develop customized mold products according to customer requirements

Comprehensive analysis of projects, high degree of cooperation with customers, strong timeliness, good follow-up service and stable production.

Learn about customization
Industry Knowledge

What are the key design considerations when designing a Plastic Miniature Transparent Box for Injection Molding?

When designing a Plastic Miniature Transparent Box for Injection Molding, several key design considerations must be taken into account. Here are some important factors to consider:

Wall thickness: The wall thickness of the box should be uniform to ensure consistent molding and prevent warpage or sink marks. A thicker wall can make the box more rigid, but it can also increase the cost and weight of the final product.

Draft angles: A draft angle is the angle at which the sides of the box taper. Draft angles are essential for easy release from the mold and should be incorporated into the design to prevent undercuts.

Ribs and gussets: Ribs and gussets can be added to the design to increase the strength and rigidity of the box. They can also help to prevent warpage or deformation during the molding process.

Gate location: The location of the gate, or the point where the molten plastic enters the mold, can impact the quality of the finished box. The gate should be placed in a location that allows for optimal filling and minimal stress on the part.

Surface finish: The surface finish of the box is an important consideration, especially for transparent boxes. The surface should be smooth and free of defects to ensure clarity and visibility.

Undercuts: Any undercuts or features that prevent the part from being ejected easily from the mold should be minimized or eliminated to ensure proper ejection.

Parting lines: Parting lines are the seams or lines where the mold halves meet. These should be placed in inconspicuous areas to ensure a clean appearance of the final product.

Material selection: The choice of plastic material used in the injection molding process can impact the quality, durability, and overall cost of the box. It is important to choose a material that is suitable for the intended use of the box, as well as one that is cost-effective and can be easily molded.

Assembly: If the box requires assembly, the design should consider how the different parts will fit together, and any necessary features should be included in the design to facilitate the assembly process.

Tolerance: The design should consider the desired tolerances, or allowable deviations from the specified dimensions, to ensure that the box meets the required specifications.

How do you determine the appropriate injection molding machine size for producing Plastic Miniature Transparent Boxes?

The appropriate injection molding machine size for producing Plastic Miniature Transparent Boxes can be determined by considering the following factors:

Part size and weight: The size and weight of the Plastic Miniature Transparent Box will determine the size and clamping force required for the injection molding machine. It is important to choose a machine with sufficient clamping force to ensure proper mold closure and prevent flashing.

Production volume: The required production volume will determine the machine's cycle time and the size of the barrel, screw, and mold. It is important to choose a machine with a high enough cycle time to meet the production requirements.

Material properties: The properties of the plastic material being used will affect the machine's barrel temperature, screw speed, and injection pressure. It is important to choose a machine with the appropriate settings to ensure the material can be processed effectively.

Molding complexity: The complexity of the Plastic Miniature Transparent Box design will affect the machine's required injection pressure and the type of injection unit needed. It is important to choose a machine with the appropriate injection unit and injection pressure capabilities to ensure proper filling of the mold.

Tooling design: The tooling design will affect the machine's required injection force, clamping force, and shot size. It is important to choose a machine with sufficient capabilities to accommodate the desired tooling design.

Cost: The cost of the injection molding machine will also be a consideration. It is important to choose a machine that is affordable and cost-effective while still meeting the necessary production requirements.

By taking these factors into consideration, the appropriate injection molding machine size for producing Plastic Miniature Transparent Boxes can be determined. Consulting with a skilled injection molding professional can also help in selecting the appropriate machine.

How do you ensure consistent quality and accuracy during Plastic Miniature Transparent Box Injection Molding?

To ensure consistent quality and accuracy during Plastic Miniature Transparent Box Injection Molding, the following measures can be taken:

Use high-quality materials: The quality of the plastic material used for injection molding can greatly affect the final product. Using high-quality and consistent materials can help ensure consistent quality and accuracy.

Maintain proper machine settings: The machine settings, such as barrel temperature, injection speed, and mold temperature, can greatly impact the quality and accuracy of the final product. It is important to maintain consistent and appropriate machine settings throughout the production process.

Regularly maintain and clean the machine: Regular machine maintenance and cleaning can help prevent issues that can impact the quality and accuracy of the final product. This includes keeping the machine and mold clean and free of contaminants and regularly inspecting and replacing worn or damaged parts.

Conduct regular quality checks: Conducting regular quality checks throughout the production process can help detect any issues early on and prevent defects from being produced. This includes checking for proper fill and packing, inspecting the finished product for any defects, and verifying that the product meets the necessary specifications.

Optimize the mold design: The mold design can greatly impact the quality and accuracy of the final product. Optimizing the mold design to minimize stress and reduce the risk of defects can help ensure consistent quality and accuracy.

Train and educate employees: Properly trained and educated employees can help ensure that the production process is consistent and accurate. This includes training on proper machine operation, quality control procedures, and troubleshooting techniques.

By implementing these measures, consistent quality and accuracy can be ensured during Plastic Miniature Transparent Box Injection Molding. It is also important to continuously monitor and evaluate the production process to identify any areas for improvement.

  • Where are your products mainly exported to?
    Our products are mainly exported to the United States, Canada, the Netherlands, France, Italy, the United Kingdom, South Korea, and other dozens of countries.
  • How to deliver the goods to us?
    Foreign customers usually ship by sea. We are only 80 kilometers away from Ningbo Port, so it is very convenient to export by sea. Of course, if the customer's goods are urgent, we can also ship by air. Ningbo Airport and Shanghai International Airport are very close to us.
    Domestic customers, we have our own van and driver to arrange delivery.
  • How many employees of your comany? What about the technicists?
    The company has more than 100 employees, including more than 30 managers and professional and technical personnel.
  • How about the capacity of your company?
    The company covers an area of 9,000 square meters, with a modern workshop of more than 8,000 square meters. We currently have thirteen plastic injection molding machines ranging from 100 grams to 3500 grams, and more than ten mold manufacturing equipment such as machining centers, with an annual production capacity of 80 million yuan.
  • Do you have some standard parts?
    No, we are a pure custom manufacturer.
  • Can you do customized products?
    Yes, we mainly do customized products,we are mainly doing customized products according to the customers’ drawings or samples.
  • What applications do your products relate to?
    Our products cover almost every aspect of your life. Products have been involved in instrumentation, auto parts, medical equipment, smart equipment, audio-visual office supplies, fitness equipment, small kitchen appliances and many other industries.
  • What products can you offer?
    We mainly accept the customization of injection molds and the production of corresponding products.
  • Are you a direct manufacturer or a trading company?
    We are a professional manufacturer of customized injection molds and injection products. We also accept orders from domestic and foreign customers and have the right to export independently.
  • How to guarantee the quality of your goods?

    Firstly,we will do the inspection after every process.for the finished products,we will do 100% inspection according to the customers’ requirements and the international standard.

    Then, we have the more advanced and complete testing equipment in the industry: color detectors, three-coordinate measuring instruments, 3d scanners, etc. To ensure that the customer's all-round testing requirements for product color, high-precision geometric size testing, etc. are met.

    In addition, we have a professional team to do a complete technical analysis in advance. According to the needs of different materials, shapes and performances of the products, we will make corresponding molds or increase the necessary technological processes such as cooling and boiling to ensure that the product performance and shape meet the requirements of customers and reduce follow-up troubles.

  • What’s the payment term?
    When we quote for you,we will confirm with you the way of transaction,fob,cif,cnf,etc.
    For mass production goods, you need to pay 30% deposit before producing and70% balance against copy of documents. the more common way is by t/t. l/c is also acceptable.
  • How long can I get the feedbacks after we sent the inquiry? 
    We will reply you within 12 hours in working day.