Tools and Moulds

Tools and Moulds

Quick Info

Mold making is a core manufacturing competency at GEMS-MFG, while we would like to highlight that there are NO product with our own brand. All of the products we supplied are custom made to the client’s specification, and in most case they need custom molds, molding or casting production, and sometimes secondary to generate the finished parts. To assure the best quality, our molds and parts are all precision fabricated using the best materials and the latest technologies. For a large percentage of our customers, they authorize us to make molds and continue the mass production at our facilities, and we also accept order to make exported molds for manufacturing abroad.

No matter what product applications requires, you can trust GEMS-MFG to do it, and more importantly we can make it better. You are free to make full use of our experienced design and engineering team, as well as our highly advanced technology and state-of-the-art equipment. Regarding to the project management, we will deliver superior outcomes while keeping you informed at each stage, as our team has a strong demand of professional consultation, careful attention to detail, and customized manufacturing solution services that are specifically tailored to your needs.

Our focus on accuracy in mold processing, along with our experience and expertise in manufacturing, gives you the advantage of producing precision inserts & components that are interchangeable to lower maintenance costs, longer mold life, and more reliable product quality.



  • When utilizing two or more plastic resins or colors in one shot for customized plastic parts, multi-shot or two-shot plastic injection molding is the exactly efficient and cost-effective manufacturing process to achieve.
  • To create custom plastic parts like soft-grip inserts, multi-colored parts, dashboards or gauges, or parts with molded seals, flexible hinges, or movable parts, they are usually made by plastic polymers from two or more injection units that are applied through separate nozzles. Such process is so called multi-shot and two-shot custom plastic injection molding.
  • With multiple-shot and two-shot of plastic injection molding, you may achieve the necessary integrated functionality on rigid parts, multiple colors and materials, molded graphics, and soft-touch layers while saving manufacturing steps, time and costs.


  • Thermoplastic injection mold plays an important role in the manufacturing field, as it enables producers to produce products with distinctive features and shapes that can be applied to a broad range of industries. In order to generate a desired product, the manufacturing process known as thermoplastic injection molding involves injecting molten plastics into a pre-shaped mold.
  • Thanks to its capacity to produce complicated parts with great light-weight, repeatability and cost-effectiveness, thermoplastic injection mold has rapidly grown in popularity. Being a reliable mold maker & production supplier, our clients and their supply chains have gained great value through the business cooperation with GEMS-MFG. We are ready to support you next project.


  • When it comes to the manufacturing of Home Appliance, ABS PP plastic injection molds are increasingly replacing other options as the preferred option for many manufacturers. Comparing to other materials, the injection mold using ABS PP plastic offer greater strength and durability, improved design flexibility, and cost savings.
  • GEMS-MFG has served as core supplier for some world famous brands of home appliances and household products for more than 10 years now. While making full use of our integrated manufacturing resources, our clients can concentrate on what matters most to promote the market selling. We can support the mass production of the following home appliance parts, such as small household appliances, cooking equipment, personal care products and home cleaning equipment etc.
  • In the home appliance industry, GEMS-MFG provides a range of highly quality products, molds, and sub-assemblies to its clients worldwide. By integrating our experience, expertise and manufacturing capabilities, We add value to our customers along the whole value chain, from concept design, value engineering, prototyping and test development, to pilot run, massive production and delivery.


  • The process of insert molding involves injecting molten plastic into a mold that already has a pre-installed insert in it, forming a strong bond between the two materials and helping cut back on assembly operations and time. Insert molding is also known as over molding. The end product from insert molding or over molding is a single plastic component that has a built-in insert, which can be made of various metals or plastic. Insert molding is used in many industries. Applications for insert and over molding include product handles, enclosures, couplings, filters, threaded fasteners, and electrical tools like screwdrivers.
  • Since the early stage of workshop set-up for mold making, GEMS-MFG has been working as a significant supplier to the power tool and electronic industries. Together with our customer engineers, we have produced over-molded parts with metal or plastic inserts with exceptionally tight tolerances. For many of consumer products and electric personal care devices, we have produced a wide variety of insert molding parts for the finished product.


  • Function, appearance, and ergonomics are frequently the main considerations for industrial designers of medical device or equipment. Upon project kicked off, the design engineers at GEMS-MFG will provide DFM (designing for manufacturability) report to optimize and finalize the product design.
  • Besides, our engineers are familiar with various productivity tools and concepts, including but not limit to mold flow analysis, prototyping, scientific molding analysis, and automation consideration, which help a lot to eliminate inefficiencies or potential problems in the ramp-up process. Our team is ready to develop your medical product concepts into reality, or take over the production of your current products for higher quality and lower cost.
  • In addition to precision molding, GEMS-MFG has a broad variety of manufacturing technologies that are essential to the medical product industry, such as high gloss molding, co-injection molding, and different surface finishing processes like pad printing and electroplating, etc.


  • Professional automobile plastic injection mold making is a highly specialized technique that calls for solid engineering knowledge and experience. To maintain the reliable and high-speed operation of the car parts, it is crucial to ensure that the automotive plastic injection molds are created to the highest quality standards. Automobile Mold is widely used to make a wide range of components, including instrument panels, frames, tubes, dashboards, bumpers, interior and exterior trim, and many more.
  • GEMS-MFG is the vendor you can rely on if you’re seeking for a skilled and reputable injection mold maker. We approach each order strategically to make sure that our customers receive the best possible service and outcomes in a timely and cost-effective manner. You have our guarantee that every mold we make complies with or surpasses industry standards. In addition, we are committed to our clients’ success, working closely with them to achieve their objectives. You can be rest assured that GEMS-MFG will provide you with excellent and trustworthy manufacturing solutions.


Integrated Factory Resources

We are your one-stop manufacturing solution provider for customized products with the joint effort & support from our 120 partnership subcontractors mainly for the production of metals & plastics. We can expand much faster but the top management decide to keep GEMS a compact, dedicated and professional company, which allows our team to really focus and deliver on your projects without any excuse or compromise. We strive to be a long-term, reliable and trustworthy partner of our customers rather than just being a contractor, and look forward to growing the company with customers’ success.

Manufacturing Veteran Team

With the passing years, we are proud to build up a manufacturing veteran team with rich experience and full expertise to fulfill your specific demand. From mold making, injection molding, die casting, stamping and sheet metal, to 2nd processes like CNC machining, oil spraying, powder coating and chrome plating, and then assembling and packaging and related, we always have someone in house to be an expert to resolve the issues in different stages of product development. We also specialize in providing charger, cable and hub, plus other electronic accessories that support a complete set of product.

Strong Project Management

“Think global, act local” is the principle of our work. Time, quality and cost are the three key elements to be considered throughout the product development from concept design to mass production. A detailed plan with weekly conference call update is a critical gateway to ensure these three key elements are successfully implemented, also assuring that all parties are on the same page. Communication is the Secret to Success . Everyone works independently to take care his own job, but together we are a team to get things done and are your daily eyes and ears onsite in China.

Flexible Operation & Customization

We offer a wide variety of products, such as mold, component and assembly product, and certain value-added services. For logo or branding product, we have in house resources to complete a color mix that can perfectly match a brand’s unique colors in fast and cost-effective way. Understood the client needs production parts but having a hard time to find a vendor since the order quantity is as low as 1000 or lower. GEMS is well set up for low volume injection molding or die casting projects. Surely our team is also capable of building SPI Class 101 mold that is designed & made for 1 million cycles or more of producing the same high quality parts consistently.