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Plastic Water Filter Pot Injection Molding


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 Water Filter Pot manufacturers and Water Filter Pot 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 Water Filter Pot. 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 Water Filter Pot. 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

How to avoid five common problems in injection molding of plastic parts?

Injection molding is a widely used manufacturing process for producing plastic parts with high precision and repeatability. However, there are several common problems that can occur during injection molding that can lead to defective parts and production downtime. Here are five common problems in injection molding of plastic parts and ways to avoid them:

Warpage: Warpage occurs when the plastic part experiences uneven cooling, leading to distortion and deformation. To avoid warpage, it's important to ensure that the mold temperature is consistent and that the cooling system is properly designed and maintained. Additionally, using an appropriate filling and packing pressure and speed can help reduce warpage.

Sink marks: Sink marks occur when the plastic part cools and contracts unevenly, resulting in visible depressions on the surface. To avoid sink marks, it's important to use a design that minimizes thick sections and includes uniform wall thickness throughout the part. Additionally, using appropriate injection speed and pressure, and cooling time and pressure can also help prevent sink marks.

Short shots: Short shots occur when the plastic does not fill the mold completely, resulting in a partially formed part. To avoid short shots, it's important to ensure that the mold temperature is consistent, and that the injection speed and pressure are appropriate for the plastic material being used. Additionally, it's important to ensure that the injection molding machine has sufficient capacity to fill the mold completely.

Flash: Flash occurs when excess plastic material escapes from the mold cavity and creates a thin layer of material on the part's surface. To avoid flash, it's important to ensure that the mold is properly designed and maintained, with appropriate venting and clamping force. Additionally, using appropriate injection speed and pressure, and cooling time and pressure can also help prevent flash.

Burn marks: Burn marks occur when the plastic material overheats and becomes discolored, resulting in black or brown marks on the surface. To avoid burn marks, it's important to ensure that the injection molding machine is properly calibrated and that the mold temperature and cooling system are properly designed and maintained. Additionally, using appropriate injection speed and pressure, and cooling time and pressure can also help prevent burn marks.

In summary, avoiding common problems in injection molding requires proper design, maintenance, and operation of the injection molding machine and mold. By taking the necessary steps to ensure consistent mold temperature, appropriate injection speed and pressure, and proper cooling time and pressure, manufacturers can produce high-quality plastic parts with minimal defects.

What are the common problems of plastic water filter jug injection molding?

Injection molding is a common manufacturing process for plastic water filter jugs, which are used to filter tap water and remove impurities. However, several common problems can occur during the injection molding of plastic water filter jugs, including:

Bubbles and voids: Bubbles and voids can occur when air is trapped in the plastic material during injection molding, resulting in defects in the water filter jug. This problem can be avoided by using appropriate injection speed and pressure, venting the mold properly, and avoiding excessive temperatures that can cause the plastic material to decompose and release gases.

Defective threads and seals: The threads and seals of the water filter jug are critical components that ensure a tight fit and prevent leaks. Defective threads and seals can occur due to improper design or inadequate injection molding parameters, resulting in a non-functional water filter jug. This problem can be prevented by ensuring that the mold is properly designed and maintained, with appropriate gating and ejection systems.

In summary, the common problems of plastic water filter jug injection molding can be addressed by ensuring proper mold design, maintenance, and operation. By taking the necessary steps to prevent warpage, sink marks, bubbles and voids, flash, and defective threads and seals, manufacturers can produce high-quality water filter jugs with minimal defects.

How are plastic water filter jugs made?

Plastic water filter jugs are typically made using injection molding, which is a manufacturing process that involves injecting molten plastic material into a mold cavity. The steps involved in making a plastic water filter jug using injection molding may include:

Design: The first step in the manufacturing process is to design the plastic water filter jug. This involves creating a 3D model of the jug using computer-aided design (CAD) software.

Mold creation: Once the design is finalized, a mold is created using CNC machines or other manufacturing tools. The mold is made from steel or aluminum and consists of two halves, the cavity and the core, which together form the shape of the jug.

Material preparation: The plastic material, typically a type of thermoplastic such as polypropylene or polycarbonate, is prepared by melting it down into a liquid form.

Injection molding: The molten plastic material is injected into the mold cavity under high pressure using an injection molding machine. The plastic fills the cavity and takes on the shape of the mold.

Cooling and ejection: Once the plastic has filled the mold cavity, it is allowed to cool and solidify. The mold is then opened and the plastic part, in this case the water filter jug, is ejected from the mold.

Finishing: The plastic water filter jug may then undergo additional finishing steps such as trimming excess material, drilling holes for the filter cartridge and handle attachment, and adding any necessary labeling or branding.

Quality control: Finally, the plastic water filter jugs are inspected and tested for quality to ensure they meet the required standards and specifications.

  • 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.