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Advanced Manufacturing

Advanced Manufacturing Technology

We provide advanced manufacturing services in technologies like 3d printing, CNC machining, vacuum casting, injection molding, etc.

On Time Project Delivery

on time project delivery

With locations in all over Australia we can assure lightning fast delivery.

Australia Wide Expandation

Australia wide expandation

Zeal 3D is present in
Victoria, NSW, Western Australia,
Queensland and Tasmania.

Experienced Engineers

Team of expert engineers with more than 15 years of experience.

Injection Molding Services Australia

Zeal 3D Services offers comprehensive services for prototyping and producing parts through a plastic injection molding process. We have advanced machines, skills, and experience to design and manufacture injection-molded plastic parts. Our plastic injection molding services are suitable for a variety of industries for designing and manufacturing high-quality plastic products for both high-volume and low-quantity parts production. We manufacture and supply durable, functional, and cost-effective plastic injection molded products defence, automotive, medical, aerospace, and consumer industries. We are among the best plastic injection molding companies that offer an amazing range of services for the Australian and overseas markets.

Being a leading provider of injection molding service, we offer a wide range of manufacturing services to OEMs. From gears to brackets, enclosures, knobs, pulleys, automobile parts, toy parts, robot parts, etc., we make thousands of molded plastic parts. We also offer an online injection molding service for which you just need to load your 2D or 3D CAD file on our website for an instant free quote. We provide free design assistance for our clients who needs alteration in the design of their product for Injection Molding.

Injection molding service Australia

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Plastic Injection Mold

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Injection Moulding Processes We Have at Zeal 3D

Plastic Injection Moulding

In the manufacturing process known as plastic injection moulding, plastic in a barrel is heated until it melts, at which point it is shot into a mould to create a finished thermoplastic item suitable for production. We are experts at designing and producing a variety of plastic injection moulds tailored to specific tolerance and budget with our expertise and cutting-edge equipment.

Liquid Silicone Rubber Moulding

Using a platinum catalyst, a thermoset method called liquid silicone rubber moulding heat-cures a two-component compound in the mould to create the finished object.

Overmolding & Insert Moulding

Two-part injection moulding techniques called overmolding and insert moulding combine one material with a secondary substrate part or metallic insert to produce a single component. Our overmolding process shortens assembly time and increases the strength and flexibility of your parts by covering plastic, metal, and rubber over one another via chemical bonding.

Injection Moulding Materials Available at Zeal 3D

We have a wide range of materials available for injection molding. The selection of material from the wide range of different grades of these materials can be a challenging task but our team of expert engineers will help you to select the most suitable material for your application.


  • ABS
  • Acetal
  • Nylon 6/6
  • PEI (Ultem)
  • PET
  • Polyethylene
  • Polypropylene
  • Styrene (crystal clear and opaque)
  • TPE

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  • HDPE
  • LCP
  • PA (Nylon)
  • Polycarbonate (PC)
  • PMMA (Acrylic)
  • POM (Acetal/Delrin)


  • Standard silicone (30, 40, 50, 60, and 70 durometers)
  • Fluorosilicone (fuel and oil resistant)
  • Optical-grade silicon
  • Medical-grade silicone


Accuracy of final injection molded products depends upon the various factors like material, tooling, the geometry of the product, and surface finishes. The possible tolerance of most thermoplastic is ±0.2 to few specialized applications tolerances are low as ±5 µm on both diameters and linear features are achieved in mass production Surface finishes of 0.0500 to 0.1000 µm or better can be obtained. Rough or pebbled surfaces are also possible.

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Injection Molded Parts

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Surface Finishes of Injection Moulding

Typically, the mould's surface preparation is finished throughout the manufacturing process. After the injection moulding is accomplished, we will give the end product-specific surface treatments in accordance with your specifications. Some of the high-end surface finishes are,


An injection moulded part's shiny and glossy surfaces are produced by A-grade finishes, which are created by involving a buffing process.


B-grade parts have a slightly rougher polish than A-grade parts due to the application of grit sandpaper. B-grade finished custom-moulded plastic components have quite a matte surface texture.


C-grade finishes provide a rough, uneven surface using grit sanding stones. C-grade finished injection plastic components have a matte surface texture.

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Grit and dry glass beads are used in D-grade finishes to provide a highly rough textured finish. Products might have a smooth or dull finish based on the type of material utilized.

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Industries We Offer Injection Moulding Services


Automobile plastic injection moulding is a crucial production technique in the automotive sector, where reliability, stability, and quality are of the highest importance. It is used to produce auto parts like,

  • Components under-the-hood
  • Exterior and interior components
  • Automotive Prototypes
  • Seating
  • Upholstery


Purchasing high-quality construction components, including injection moulded plastic building products and assemblies, is one of the keys to the success of architecture projects.

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  • Personalized architectural detailing
  • Concept Models
  • Decorative items
  • Wall Hangings


One of the many industries that manufacture parts using the plastic injection moulding technique is defence. The injection moulding process is used in numerous applications in the defense sector for creating desired end-products.

  • Fairings
  • Cable Clamps
  • AirFrame Assemblies
  • Deflector Shields
  • Chassis Components


Most of the components used in the aircraft sector are manufactured using aerospace plastic injection moulding because of the number of advantages they provide.

  • Turbine Blades
  • Bezels
  • Lenses
  • Panels
  • Turbine Housings
  • Chassis Components


  • Tooling parts
  • PPE
  • Mining Equipment Spares
  • Fixture elements

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Industrial injection molding

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injection-molded plastic parts

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Advantages of Injection Moulding

Efficient High Production: The cost per part for large volume production runs is quite cheap. By employing plastic moulds rather than metal ones, you may save costs even for medium volumes, or between 10,000 and 25,000 pieces.

Low Waste: In comparison to several other manufacturing techniques, injection moulding generates a very little amount of waste. Even if there is any leftover or trash plastic, it can be recycled and used again.

Cost-Effective: Numerous copies of the same products can be produced. When you require parts with tight tolerances and high levels of dependability, injection moulding is the best option.

High Detail: Under extremely high pressure, molten plastic is injected into the mould during the procedure. This forces the plastic firmly against the moulds, enabling the creation of detailed and complex shapes with lots of detail.

Needs Less Post-Production: Since the parts typically have good aesthetic post-production, you will typically need very little post-production. You can create an injection moulding tool with a unique finish that will be immediately visible on the finished product.

Why Choose Zeal 3D for Custom Injection Moulding?

High-end Service Provider: Zeal 3D, a provider of 3D engineering and modern digital manufacturing services, is dedicated to constantly providing products and customized services that satisfy customers' expectations and adhere to regulatory requirements.

Manufacture At Any Scale: Zeal 3D works with manufacturers to create tools and equipment in any quantity, from 1 to 10,000 pieces, enabling high or low-volume manufacturing at the most competitive pricing.

Extensive Material Support: Zeal 3D offers specialized 3D engineering services that cater to the client's needs and requirements using more than 45 different materials.

No MOQ Needed: Without needing a minimum order quantity, our staff will make the required effort to locate the supplies if you need manufacturing services utilizing materials that are not on the material list.

High-Quality Assurance: In order to reach the highest level of customer satisfaction, Zeal 3D makes a significant effort to ensure quality assurance and continuously delivers high-quality goods with strict tolerances.

Australia Wide Fastest Delivery: In Australia, including Melbourne, Perth, Sydney, Brisbane, Canberra, Adelaide, Tasmania, and New Zealand, Zeal 3D offers the quickest delivery options for 3D metal printing.

Industrial Plastic Injection Molded Parts

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Industrial Injection molded parts

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Our Injection Molded Products and Services

If you are launching a new automobile and need custom product designs, we have the best custom injection molding expertise and services. Our industrial plastic parts designs are also utilized by building and construction, food packaging, and medical industries. Whenever think about Injection Molding services, think of the largest plastic injection molding company in the world i.e Zeal 3D.

We are proud of being one of the top custom injection molding suppliers for manufacturers whose injection molding cost is lower than any market. Our team is skilled in producing high-precision and durable plastic injection molded parts. We work with advanced machines to handle our customers' needs for injection-molded parts from low to moderate, and large quantities in any 2D and 3D shapes. Whether you want to turn concepts into reality, enhance product design, or conduct injection molding and testing, we can provide a high degree of precision and aesthetic appearance to meet international standards.

Zeal 3D's engineering department uses state-of-the-art CAM programming equipment to send tool path instructions to our machines that will produce your desired part accurately. The quality is tested using automatic testers that ensure dimensional specifications are maintained right on target without any change.

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With Zeal 3D services, we can support any of your injection molding needs and provide you with the best service and products at every step of your project. This ranges from design assistance to prototype verification or full-scale production, all by the highest quality standards.

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Industrial Plastic injection molding service

Plastic injection molding is a faster and low-cost manufacturing process for quality and functional plastic products for a variety of uses across all industries. Our designers are experts in creating 3D CAD models with complex features and using laser-based rapid prototyping methods. We recommend all our clients to get injection molding to test fitting and functionality before going for production. Easy testing, assembling, and manufacturing are various advantages of rapid prototyping.

Zeal 3D is an expert in injection molding and has the capacity to join fast prototyping procedures with ultimate ease. From high customization to complex design manufacturing, we do it all for you. We offer the best plastic mold manufacturing services for your every need. Search plastic injection molding companies near me and you will find Zeal to helping you about everything which you need to know about it.


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Plastic injection molding mass manufacturing

A Few Advantages of our Plastic Injection Molding Services

  1. No Limits on reproduction depending upon mold
  2. Dependability in parts conveyance
  3. High efficiency with complex geometries
  4. Full scope of tooling abilities
  5. Enhanced strength and reduced manufacturing costs.

Zeal Injection Molding Services and plastic molding manufacturing services additionally offer its clients an extensive variety of auxiliary administration alternatives that incorporate machining, powder covering, silk screening, painting, and ultrasonic welding. Zeal Injection Molding Services utilizes the most recent machines to deliver high-quality plastic products.

Zeal is a leading company offering you on-demand plastic injection molding services. Regardless of your industry, Zeal offers you full-fledged plastic injection molding solutions to cater to all your manufacturing requirements.

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Be it automotive, construction, computing, electrical, and electronics, Zeal offers clients a wide variety of molding processes to produce the best quality plastic products. We have a proven track record of supplying high-quality parts that meet each client's distinct requirements in terms of design, dimensions, and surface finish.

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Metal Injection Molding

Metal injection molding is an advanced variation of conventional plastic injection molding that allows engineers to perform fabrication of solid metal parts. In this metal molding process, the raw material called feedstock is the powder of metal and polymer.

In this process, manufacturers utilize a standard injection molding machine, and the powder is melted before injecting into the mold. The powder cools down and solidifies into the desired shape during this process. After this, the heating process removes the unnecessary polymer to produce high-density metal objects.

This process is ideal for producing high-volume small metal parts with complex geometric designs. Metal injection molding can efficiently create objects with thin walls. Engineers can use a variety of ferrous and non-ferrous alloys and get the desired material properties. Our metal injection molding machine offers a tolerance level of up to ± 0.005 in and Max wall thickness of 0.04 to 0.25 in.

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Metals Used for MIM Parts:

Several industries including automotive, aerospace, and medical use robust metal parts manufactured using the metal injection molding process. Below are some of the commonly used metals used in MIM parts:

  • Stainless steel
  • Copper alloys
  • Titanium alloys
  • Nickel alloys
  • Tungsten alloys
  • Iron
  • Cobalt alloys, and many more

Zeal 3D is among the leading metal injection molding companies that cater to all your bespoke manufacturing requirements with ease.

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Metal Injection Molding

Metal Injection Molding Process

Metal injection molding process consists of four significant production steps that turn powder from raw materials into a robust solid object. The process has the following steps:

Preparation of Feedstock:

The first step of metal injection molding is to form a powder mixture of metal and polymer, and the metal used in this process is much more refined (under 20 microns). The powdered metal is mixed with a heated thermoplastic binder, cooled, and then pulverised into a feedstock in pellets. The end feedstock consists of 60% of metal and 40% polymer.

Injection Molding:

Next, the powder is molded utilising the same machine and tooling that engineers use in plastic injection molding. But in this method, the cavities are 20% larger to manage the part shrinkage during the sintering process. In the process, the machine first melts the feedstock and injects it into the mold cavity, where it cools and gets the desired shape.

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In this step, the machine removes the polymer binder from the metal, and in many cases, engineers use solvent debinding to dissolve most of the binder. Once this step is complete, engineers perform the thermal debinding process. In this process, the molds are heated at a low temperature, and it helps in removing the polymer binder through evaporation.


The final step of this process includes sintering the remaining part at high temperatures (up to 1350°C) to reduce the space by around 1% to 5%, and it results in a high-density metal part. The furnace leverages inert gas to attaint's temperature of about 85% of the metal's melting point. This process helps remove pores and causes the part to shrink by 80% of its molded volume. The final part retains the original shape with higher tolerance levels.

Injection Molding Design Rules

Even while using 3d printed injection mold for the MIM process, most of the rules are similar to the plastic injection molding. But, here are some additions that engineers need to follow:

Wall Thickness:

The wall thickness should be minimal, and it should be uniform throughout the part production. Minimising the wall thickness helps in reducing material volume and sintering times.


Unlike the traditional plastic molding process, MPM parts don't require any draft. The polymer binder that is used in the powder material releases quickly from the mold.

Sintering support:

While performing sintering, the MIM parts need robust support, or the parts will get distorted as they shrink during the process. Engineering can use standard flat support trays or use custom supports if required.

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Rubber Molding

Rubber molding is a molding process that manufactures usable rubber items produced from uncured elastomers or rubber. Elastomer is any rubber molding materials that have good resilience for returning to the original shape when applied.

Rubber Molding Process

The rubber molding machine creates molded rubber parts by hard pressing a rubber's block into a molding metal cavity. When the rubber is exposed to heat, it activates a chemical reaction, and there are several variations in this process to achieve the desired quality. The most popular variation methods are compression molding, transfer molding, and injection molding.

Types of Rubber Molding

Industries use several rubber molding solutions to accomplish respective structure and properties in the final product. There are majorly three types of rubber molding that are:

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  1. Rubber Compression Molding

    In this process, engineers keep a fixed amount of rubber compound into the mold cavity and then compress it into the shape of the cavity by closing both sides of the mold. In this process, the pressure remains the same while the heat is added to cure the product. Once the process is complete, engineers remove the final product from the mold.

  2. Rubber Injection Molding

    In this process, the rubber is heated to a liquid stage before injecting it into the mold. The final product is obtained by opening the mod and then closing it to get the following injection process for producing molding rubber.

  3. Rubber Transfer Molding

    In rubber transfer molding, the rubber compound is placed at a specific part of a mold called a pot before being pushed against a cavity to get the desired shape. Once the curing process is done, the mold is split while relating the product.

Rubber Molding Materials

There is a wide range of rubber molding materials available in the market to accomplish different tasks. Some of the popular ones are:

  • Nitrile or Buna-N
  • Hydrogenated Nitrile
  • Ethylene Propylene Diene Monomer
  • Silicone
  • Natural Rubber

Advantages of Rubber Molding

  • Good surface finish
  • Dimensional stability
  • Ethylene Robust mechanical properties
  • Suitable for parts with a large cross-section
  • Tooling is easy & cost-effective

Zeal 3D is a leading rubber and silicone injection molding company that brings in the complete range of molding across industries.

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Rubber Molding
foam injection molding

Foam Injection Molding

The foam injection molding process is a low-pressure injection molding process in which the machine introduces inter gases into the melted polymer to reduce the density of the product. The structural foam molding creates products that have cellular cores surrounded by integral and rigid skin. While making the homogenous mixture of polymer and gas, engineers use foaming agents, including NI, CO2, or CBA.

The foam injection molding machine then injected the material through the nozzle into the mold in a lower volume than the amount required to mold an object. Injection expansion and pressure of the polymer and gas then fills the mold. A porous surface is formed when the melt comes in contact with the cold surface of the mold. Then the foam injection molding expanding polymer mixture forms the cellular core.

Why Use Foam Injection Molding?

The foam molding process is an ideal process for producing high-strength, lightweight parts. Many large-sized objects require thick walls than conventional injection molding, making the production more accessible. The structural foam brings a quick turnaround while working with thicker parts.

Another benefit of leveraging this technology is that it's a very cost-effective molding process that produces robust products. With minimum warpage, the parts have superior durability.

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Structural Foam Injection Molding Advantages

  • It reduced molding costs
  • Complex product design capabilities
  • Improved dimensional stability
  • Highly efficient and cost-effective
  • Less material usage

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Micro Injection Molding

Micro molding is an advanced and highly specialized manufacturing method that can produce tiny plastic components with extreme intricate geometries. This process can manufacture parts weighing from 0.1gm to 1gm and tolerance levels of 10 to 100 microns.

It is an ideal method for producing tiny components with higher design precision and accuracy. This mini injection molding begins with creating smaller cavities to form the desired shape. Resin or thermoplastics are rapidly injected into the cavity to form components at a higher speed.

Industries Using Micro Injection Molding Service

Several industries including, medical, automotive, and electronics manufacturing, require small injection molding processes to create minuscule parts. Following are some of the sectors using micro molding:

  • Automotive
  • Healthcare

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  • Electronics
  • Pharmaceutical
  • Fashion

Micro Molding Materials

  • Polypropylene
  • Polyethylene
  • Nylon
  • Polysulfone
  • Polycarbonate
  • Acrylics
  • Polybutylene terephthalate

Zeal 3d is a leading micro injection molding company that caters to all industrial requirements with higher accuracy and shorter turnaround time.

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Injection Molded Plastic Parts

Injection Molding - A Comprehensive Beginners Guide

Injection molding is a robust manufacturing process used to make an enormous variety of products. It is a large-scale production method that is cost-effective for mid-volume production runs. In addition, it gives the manufacturer the ability to create complex items with fine detail accurately and efficiently. It is why injection molding has become so popular recently, as manufacturers are increasingly looking towards innovative processes to stay competitive in today's global market.

This process offers several advantages to manufacturers. To begin with, it is a highly versatile process for manufacturing all kinds of plastic parts. It is ideal for producing items that range in size from fractions of millimetres up to several metres in length and creating them with amazing intricacy and detail.

If you are new to this mass production process, then this comprehensive guide will walk you through the process.

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