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Custom Connectors
LCD Display and Modules
Injection Moulding
Die Casting and Extrusion
CNC Machining
Cable Assemblies
Custom Metal Work
Our Mission
Custom Connectors Supply Concepts has a state of the art mold/tooling fabrication shop which allows us to quickly go from concept to mass production in weeks, not months. Our in house mold facility provides flexibility to react quickly to changes in customer requirements.
LCD Display and Modules Supply Concepts offers a wide range of custom and standard LCD displays and modules. Our custom capabilities range from the simplest of monochrome displays to the highest resolution available in today’s technology.
Injection Moulding Utilizing the latest CAD systems, coupled with our experience, Supply Concepts can undertake the most difficult Injection Moulding Projects. Whether it be the selection of raw material or color, we have the expertise and experience to create the quality finished product are customers expect.
Die Casting and Extrusion Supply Concepts Die Casting and Extrusion process offers the widest range of shapes than any other metal manufacturing technique. From die design to finished product, with the end result always being the same, and economical, quality product.
CNC Machining Unsurpassed accuracy is the end result with our CNC capabilities, which include the full array of CNC fabricating techniques. If the project demands the upmost of accuracy our CNC solutions is the answer.
Cable Assemblies Our custom cable assembly capabilities furnish the OEM and ODM market with superior product at a significantly reduced cost. Our cable manufacturing services range from design, prototypes, to full production.
Transformers We make sure all our transformers comply with the safety standards denoted by our customer’s, UL, CSA, VDE. IEC, and AS/NZS and others. Making sure all of our electrical products meet the highest safety standards is paramount at Supply Concepts.  
Heatsink Supply Concepts offers many different standard type heat sinks. Many of these heat sinks can be slightly modified to meet most of our customer’s need. Having a large inventory of these basic designs in stock offer you, our customer, a very cost effective, quick turnaround solution to your heat sink needs. If need be, we can always design and deliver a totally customs solution.  
Custom Metal Work Whether it be a simple stand alone single part, or a totally customized multi faceted assembly, Supply Concepts has the expertise and quality facilities to get your project done right the first time. Our partnered factories capabilities range from a simple stamping to the most intricate multi process fabrication.
Our Mission Our mission is to support the OEM, ODM, & CM market through well established, ,skilled, and diverse factory partnerships in Asia. We deliver value-added services that enable companies to manage, improve, and add profitability to their business.

Die Casting Process

die casting china

Die casting is a process of casting Aluminium, Zinc and Copper alloy under pressure, which  produces precision parts in high volume with low cost. There are two processes of die casting: hot chamber die casting and cold chamber die casting. Die casting machines are typically rated in the amount of pressure they exert on the die. Regardless of their size, the only fundamental difference in die casting machines is the method used to inject molten material into a die. A complete die casting cycle can vary from one second for small components to minutes for casting a large part, making die casting the fastest technique available for producing precise metal parts. Supply Concepts utilizes the fastest methods of production in Asia to produce quality products at significantly lower cost than in other regions. 

Advantages of Die Casting

- Die casting is an economical process providing a wider range and shapes of components than any other manufacturing technique.

- Die cast parts have a long service life and can be manufactured to complement or enhance the visual appeal of the final product they are used in. Many product designs can be improved or benefit by utilizing die cast parts.

- Die casting provides for complex shapes and higher dimensional accuracy/stability than many other mass production processes. Some further machining may be required, depending on the design or application

- Die cast parts are stronger than plastic injection moulded products having the same dimensions. Thin wall castings are stronger and lighter than those possible with other casting methods.

- Die cast parts can be produced with smooth or textured surfaces and they can be easily finished with a minimum of surface preparation.

- Die castings can provide integral fastening elements as part of the design. For many parts, post-machining can be totally eliminated, or, done minimally to bring dimensions to sizes required.

Cold chamber hot chamber process explained:

In a cold chamber process, the molten metal is ladled into the cold chamber for each pour. There is less time exposure of the melt to the plunger walls or the plunger. This is particularly useful for metals such as Aluminium and Copper (and its alloys) which alloy easily with Iron at higher temperatures. 

In a hot chamber process, the pressure chamber is connected to the die cavity which is immersed permanently in the molten metal. The inlet port of the pressurizing cylinder is uncovered as the plunger moves to the open (un-pressurized) position. This allows a new charge of molten metal to fill the cavity and thus, can fill the cavity faster than the cold chamber process. The hot chamber process is used for metals of a low melting point and high fluidity such as tin, zinc, and lead, that tend not to alloy easily with steel at their melt temperatures. 


Extrusion is the process by which long, straight metal parts can be produced. The cross-sections that can be produced vary from solid round, rectangular, L shapes, T shapes, Tubes and, many other different types. Extrusion is done by squeezing metal into a closed cavity through a tool, known as a die, using either a mechanical or hydraulic press. 
Extrusion produces compressive and shear forces in the stock. No tensile is produced, which makes high deformation possible, without tearing the metal. The cavity in which the raw material is contained is lined with a wear resistant material. This can withstand the high radial loads that are created when the material is pushed by the die. Extrusions often minimize the need for secondary machining, but, are not of the same dimensional accuracy or surface finish as machined parts.

Cold Extrusion:  Cold extrusion is the process done at room temperature or slightly elevated temperatures. This process can be used for most materials,subject to designing robust enough tooling that can withstand the stresses created by extrusion. Examples of the metals that can be extruded are lead, tin, aluminium alloys, copper, titanium, molybdenum, vanadium and steel. Examples of parts that are cold extruded are collapsible tubes, aluminium cans, cylinders and gear blanks. The advantages of cold extrusion are: 
- No oxidation takes place.
- Good mechanical properties provided the temperatures created are below the re-crystallization temperature.
- Good surface finish with the use of proper lubricants.

Hot Extrusion: Hot extrusion is done at fairly high temperatures, approximately 50 to 75% of the melting point of the metal. The pressures can range from 35-700 MPA (5076 - 101,525 PSI). Due to the high temperatures/pressures required and their detrimental effect on the die life, as well as other components, good lubrication is necessary. Oil and graphite work at lower temperatures whereas at higher temperatures, glass powder is used. 

Typical parts produced by the hot extrusion process are trim parts used in automotive and construction applications, window frame members, railings and aircraft structural parts.

Choosing the Proper Alloy

Each of the metal alloys available for die casting offer particular advantages for the completed part:

Zinc - The easiest alloy to cast, it offers high ductility, high impact strength and is easily plated. Zinc is economical for small parts, has a low melting point and promotes long die life.

Aluminium - This alloy is lightweight, while possessing high dimensional stability for complex shapes and thin walls. Aluminium has good corrosion resistance and mechanical properties, high thermal and electrical conductivity, as well as good strength at high temperatures.

Magnesium - The easiest alloy to machine, magnesium has an excellent strength-to-weight ratio and is the lightest alloy commonly die cast.

Copper - This alloy possesses high hardness, high corrosion resistance and the highest mechanical properties of any alloys cast. It offers excellent wear resistance and dimensional stability, with strength approaching that of steel parts.

Lead and Tin - These alloys offer high density and are capable of producing parts with extremely precise dimensions. They are also used for special forms of corrosion resistance. 

Die design

Die casting is one of the fastest and most cost-effective methods for producing a wide range of components. However, to achieve maximum benefits from this process, it is critical that designers collaborate with the die caster at an early stage of product design and development. Consulting with the die caster during the design phase will help resolve issues affecting tooling and production, while identifying the various trade-offs that could affect overall costs. For example, parts having external undercuts or projections on sidewalls often require dies with slides. Slides increase the cost of the tooling, but may result in reduced metal use, uniform casting wall thickness or, other advantages. These savings may offset the cost of tooling, depending upon the production quantities, providing overall economies realized over the life of the project.

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