Jewelry Casting Equipment

The steps we’ve outlined below are intended as a guide to help you through this decision making process, and ensure you’ve considered all possibilities before you sign on the dotted line.

Research Your Options

Research forms the foundation of any informed business decision. So like the products you plan to make, or the markets you want to enter, deciding on a jewelry casting equipment company requires an initial investment of sheer time to compile a list of relevant options. To expedite the process and cut down on overheads, this phase should also see you gathering as much information on these prospective options as you can.

For example, say you have the following two candidates in front of you. The first is a design start-up, with little real-world experience and no past clients. The second? It’s a company with 10+ years of experience, with a history of successful projects, happy clients, and industry-wide recognition. Which would you choose?

When push comes to shove, there’s no comparing a newcomer in the industry to a seasoned developer with a proven track record. So while the decision to work with a new company may pan out for you, a calculated risk is still just that: a risk.

From here, highlight the companies that have experience within a specific field similar to the one you intend to enter, or are flexible and versatile enough to adapt to your needs. If your projects requires microcontroller design and development, for example, look for companies with a history in the field.

At the end of the day, you want to know that your project is in the experienced hands of a developer that knows how to deal with the challenges that inevitably arise over the course of any project.

Size Matters

With a list of reputable companies in hand, you need to start considering the size of the company itself, as well as the inherent pros and cons that come with working with either.

Larger companies often suffer from an unfair stigma that they’ll treat you, the customer, as ‘just another number’. While small companies, in comparison, are known for providing personal, individualised service that can better suit your specific needs. They often become as personally invested in your project as your are because, after all, your success is their success too.

On the flip side, larger companies often have access to a much larger pool of resources, which can help speed up the process and ensure your project is moving through the production pipeline at a comfortable speed.

The ideal scenario is a company that ticks all of these boxes, whether it’s a large company that operates on the personal level of a small one, or a smaller company with the resources of a larger one. And don’t despair, these companies are out there. Either way, you want to join forces with a company that’s going to treat you and your project as if it were their own, irrespective of size, resources or annual turnover.

Look for signs of this approach early. How are your initial enquirers being followed up? What kind of language is being used? How are you treated during those initial conversations, and later when you’re talking to higher-ups within the company?

How a company treats new and potential customers is often a sign of how they’ll treat you a day, a week or a month down the track. Judge them based on your personal criteria, and choose wisely.

An Experienced Management Team

Let’s face it, you want the most skilled and experienced staff members working on your project, right? Which means a large part of your decision is reliant on just how well a company’s development team is managed. It follows that common questions to ask would be ‘Is there a strong leadership within the company?’, or ‘At the end of the day, who will have the final say on hard issues?’.

Experienced, results-driven management teams don’t just sit on the sidelines, instead they offer up new ideas or ways to improve your project because they care about it, and want it to become the success you already know it can be.

Don’t always take this at face value, though. Oftentimes, companies can play the tried-and-tested bait-and-switch. That is, you’ll be lead to believe that senior staff are working on your project, when in reality much of the work is being carried out by subcontractors. Stay vigilant, ask questions, and find the answers you need to make an informed decision.

Brand Trustworthiness

Not every consumer consideration is linked entirely to creative package design, unfortunately. When we recognize a brand as having been in existence since time immemorial, we are obviously more likely to trust it. After all – how could it have endured more than a century without having its merits?

2.1, Vacuum Casting Method

To cast jewelry using the vacuum casting method, there is a strict procedure that you have to follow to get top-quality jewelry. To make the process a success, you have to begin by designing the jewelry that you are looking to make. This step can be completed with the help of a computer software, of with a hand-carving process done on engravable objects. Note that this method, is most of the time, used to design scheme.

The second step involves making the wax mold that will later be used for the production of the jewelry that was designed in the first step. There are two applicable ways in which the wax mold can be made, and you are free to apply any of the two processes.

Take the existing ring or component, and place it in container with eight sheets of rubber surrounding it. The container is placed in a hot press where it remains for about 40 minutes, during which time the rubber melts around the ring or component, and makes a perfect mold of it. Along with the ring, a metal stem is placed in the container in order to create an opening where the wax will be injected at a later time.

Once the rubber mold has been removed from the vulcanizer, cooled and hardened back to its original state, a blade is used (with a very special and precise technique) to cut the mold open in such a way that it can be closed back tightly in order to make the wax duplicate.

Wax flakes are placed in a wax injector and melted so that they can be injected into the mold. Using air pressure, the wax is shot into the mold through the opening.
In the next step, you want to weld the jewelry wax mold together so that you end up with a tree-like wax mold. The work of this is to let you cast a large number of jewelries at the same time without breaking a sweat.

In the next step, you need to make a plaster using a thread. From there, you will fetch a container in which you will place the wax tree. From there, you want to fill up the container with gypsum liquid. Note that you are almost there in making your jewelry. Your step three is one when you are complete with the solidification.

In the next step, which is step four, you need to place the gypsum liquid from the previous step into in an oven, in a vacuum jewelry casting machine and let it sit there for some time. Make sure that the temperature is high so that you end up with the right product. You will notice that your wax will get melted into liquid, after which they will flow out of the plaster mold.

From there, you will be left with a mold that is empty on the inside. In the fifth step, you are required to thoroughly heat the precious metals, get them into liquids and then have them filled in the empty plaster molds that you have. Let them cool, and after that is done, you will be left with a well-cast jewelry.

2.2, Centrifugal Casting Method

Centrifugal casting is a process that delivers components of high material soundness. As a result, it is the technology of choice for applications like jet engine compressor cases, hydro wear rings, many military products, and other high-reliability applications. It has also proven to be a cost-effective means of providing complex shapes with reduced machining requirements and lower manufacturing costs as compared to forgings and fabrications.

In the centrifugal casting process, molten metal is poured into a preheated, spinning die. The die may be oriented either on a vertical or horizontal axis depending on the configuration of the desired part.

By spinning a mold while molten metal is poured into it, centrifugal force acts to distribute the molten metal in the mold at pressures approaching 100 times the force of gravity. The combination of this applied pressure and the engineering mechanics of controlled solidification and secondary refining produces components of superior quality.

As the die begins to fill, the denser molten metal is forced to the wall of the spinning die. Directional solidification of sound metal progresses from the O.D. towards the bore, while the less dense material, including impurities, “floats” to the I.D.

Once the casting has solidified, the part is removed from the die and residual impurities in the I.D. are machined away, resulting in a defect-free structure without cavities or gas pockets.

2.3, Other Casting Methods

Investment casting (also known as lost-wax casting) is a casting process that has been practiced for thousands of years. With lost wax process being one of the oldest known metal forming techniques.It is used for metals that are difficult to be machined or fabricated.

It is also used for the manufacture of parts that cannot be formed by usual manufacturing techniques like turbine blades or components of airplane that are subjected to high temperatures.Compared to other casting processes, such as die casting or sand casting, it can be an expensive process, but the components that can be produced using investment casting can incorporate intricate contours. In most cases the components are cast near net shape.

Though sand casting has been largely replaced by centrifugal casting in recent decades, for hundreds of years it was the most popular of all casting methods. It still plays an important role in the production of large metal forms, and can offer the advantages of low cost, quick results and ease of duplication to those goldsmiths who take the time to master it. Though sometimes thought of as coarse, sand casting can yield results that are as fine and true to detail as any other casting method. 

SuperbMelt jewelry casting equipment (SPB-DM) can be used for casting any precious metal in the weight range of 1-6kg. Precious metals such as gold, copper, and silver or any other metal artwork can process with this product.

The vacuum jewelry making machine is super jewelry casting equipment you should opt for. It is super-fast and energy efficient. SuperbMelt jewelry casting equipment (SPB-DM) ensures that you’ll never have to bother about density, shrinkage or air hole in your final piece. The casting machine comes with gas chamber which releases pressurized inert gases. This completely eliminates any of form of porosity or shrinkage. Thereby giving your final piece an impeccable appearance and a touch of class. Strong induction stirring makes the gold alloy more uniform.

2.4, Comparison of Multiple Casting Methods

Vacuum casting is a fast and effective method for making high-quality rapid prototypes and end-use parts in low volumes. The process uses pour-able casting resins and reusable silicone molds to make perfect copies of master patterns.

Such copies are useful in many ways, including for engineering testing, product development, as display models and for marketing and crowd funding campaigns.

Centrifugal vacuum casting is a process that has been there for many years, and if used properly, can help companies come up with quality jewelries to sell to users across the globe. Though we try to vouch for vacuum pressure casting due to its low frequency operation, we are still conviced that your company can still achieve success with other methods mentioned in this guide.

We have everything in-house to offer a great vacuum casting solution for rapid prototypes and end-use parts. With our experienced staff, finishing services and quality inspection, you’ll get production quality parts at a fraction of the production price. Upload your CAD files now for a free quotation.

It is the method of producing castings where molten metal is poured into a  mould rapidly moving around a fixed axis. The molten metal come into contact with this rotating mould under a good amount of pressure because of the centrifugal force. This gives a better filling of mould. The casting grain density is also high.  As a result the porosity is almost zero. Centrifugal casting process is mainly used for making parts having the shape of bodies of revolutions.

Greater strength. The greater strength of parts produced using centrifugal casting is a result of higher density grain structures. As the process allows for more control over directional solidification, the grain structure is more uniform and its mechanical properties are almost equal in all directions.

This higher structural density increases the life span of the component and allows for higher stress tolerances. Another factor that contributes to the enhanced part strength is higher product purity, which eliminates internal porosity and improves structural uniformity.