Category Archives: Plastic Moulding

Custom Plastic Moulding Cost

Custom plastic moulding could make your innovative idea for a product a reality. Often people think producing a product out of plastic is farfetched, and that a large factory overseas is needed. This is not the case, as custom rotational plastic moulding can make it straightforward and cost-effective at any production scale.

When looking to create a plastic product one of the first things considered is the custom plastic moulding cost. Different plastic moulding solutions offer unique advantages and savings. Rotational moulding offers various advantages both in design, production, and cost when creating a custom plastic mould.

Cost considerations

What exactly are some of the costs of developing a custom plastic mould?


All plastic products are made by filling a mould that is in the shape of what you want to make. Some processes like injection moulding use high pressure to force melted plastic into place. Here at Rotational Plastics, we use, you guessed it, a process called rotational plastic moulding, also known as rotomoulding.

Rotational moulding is a low-pressure process which means unlike other processes, weaker and cheaper materials, like aluminium can be used to create custom plastic moulds. Since the moulds are not under pressure, they do not require the same tolerances.

Because tooling can account for upwards of 70% of the initial start-up cost when creating a new custom plastic mould an expensive mould could make or break your dream. Rotational Plastics steel miller can create cheap moulds from steel but can offer aluminium moulds when required.


If you have an idea for a product but do not know how to convert that to a design for a custom plastic mould, the team the rotational plastics is happy to use their industry expertise to assist you and ensure your vision comes true.

Realizing your idea may come with some hurdles, but more than likely our team has encountered them all. Engineering a product to be suited to rotational plastic moulding is an art form. Requiring intricate knowledge of what is and is not possible. Due to the nature of rotational plastic moulding, certain designs may be impossible to produce. The team at Rotational plastics will help you through the design process to ensure these are avoided early in development.


Generally, the design, testing and mould tooling is almost all the cost involved in setting up a custom plastic mould. When it comes to producing your plastic product, the cost pales in comparison.

So how much can you expect to pay for custom plastic mould?

The cost of a custom rotational mould is not as straightforward as one might think. Depending on size, the complexity of design, to the material used for the mould, the price can range from as low as $3,000 to $30,000. Because design and tooling are where the money is invested, having a team as talented and professional as the one here at Rotational Plastic is key. If you have an idea for a custom plastic mould, give us a call at 0800 768 284 or contact us here. The Rotational Plastics team have developed a process to lead you to your goal and is eager to help your project succeed.

Spill containment of hazardous substances

Rotational Plastics NZ Ltd are leading manufacturers of rotationally moulded plastic products who have been assisting customers with design & manufacturing solutions for over 25 years.

If the storing or transporting of hazardous substances is part of your day to day activities, then you will have a need for spill pallets, spill containment berms, IBC spill pallets, drum pallets or other secondary containment solutions.

If you are dealing with chemicals, oils, sewage or the like then you will need to consider a form of Spill containment (or different forms of, depending on what you are dealing with) at your workplace.  Accidental spills or overflow, if contained within a spill containment unit let spills be contained within a barrier or drainage system rather than being absorbed at the surface.



Absorbent spill kits have been in place in workplaces for a number of years, but spill containment is considered now to be an eco-friendlier solution. This is mainly because absorbent spill kits have a small capacity, require disposal once used and allow no recycling of the spilled fluid.

Installing spill containment measures prior to a spill can result in significant savings in the event of a spill. Wise people count the cost of possible issues prior to them happening. Instead of paying for a costly clean up, containment measures reduce the impact on the environment and the surrounding area, and may even save some of the resource. Clean up costs can be impacted by numerous factors such as location of the spill, type of oil spilled, surrounding sensitive areas, and local regulations.

Rotational Plastics NZ Ltd have a range of solutions to help you resolve spillage issues. Our trained staff have the experience you need to advise you on the best option for your company. Some of the products on offer at Rotational Plastics are:

  • Bundled IBC’s
  • Drum Spill Pallets
  • Drum Splash Pallets
  • Drum Rack Spill Pallets
  • Spill Bunds
  • Splash Trays
  • Accessories

All of our Spill Containment items provide storage, secondary containment, protection and response to minimize the impact of leaks and spills. There are many applications that our spill containment products can handle such as oils, lubricants, chemicals, diesel and poisons and can be either mobile or fixed.  Our products:

  • Will not splinter or rot
  • Available in a variety of colours and can be numbered and incorporate text and logos
  • Extremely robust and strong
  • UV stabilised
  • Easy to clean

Having the right product in your workplace will help make sure you are in compliance and make your workplace safer. All of our products are made here in New Zealand and are designed and tested to meet specific industry standards.

You can view our full line of Spill Containment items by clicking  >> HERE <<. If you need more information, give us a call on 09 443 5880.

We manufacture industrial plastics

Do you have an idea for a new product? Need help making it happen?  We at Rotational Plastics can help. If you have an idea around plastic moulding that you want realised we can help you make it a reality from the design to the mould.  We can pretty much manufacture anything you can think of around industrial applications.  To make your ideas a reality we use the rotational moulding process.  This process is a low pressure, high temperature method to produce hollow one-piece plastic parts.  It is a competitive alternative to blow moulding, thermoforming and injection moulding.  This way your designs are produced stress-free and with near uniform wall thickness and moderately complex shapes.  For example, this is great for making canoes, toys, containers and such.  Rotational moulding is

  • Relatively simple and cheapindustrial_plastics
  • Possible to alter wall thickness without changing the mould
  • Complex parts with undercuts and intricate contours can be manufactured easily
  • Has very little waste
  • Is able to run short sizes, which is great for New Zealand

So come and talk to us as we can offer custom engineered solutions, high demand and production, mould generation and design, and commercial product supply in various verticals.  We take on any job no matter how big or small from one offs to whole ranges.  The plastic we use is called thermalplastics which means when your product is made it is high strength and stress resistant.  We make quality products so your ideas are in good hands with us.


Our company is New Zealand owned and operated and have been around for 25 years.  We have worked along with leading brands and cover a wide range of subjects from farming, to marine, to plumbing.  We believe in developing a strong customer relationship so we can best help you put your ideas into reality.  Your satisfaction is of high importance to us and it shows by our reputation of being reliable.  We can offer a free quote so call today and discus what we can do for you.

Is Plastic Molding Bad For The Environment?

Plastic has been a concern for a long time, with many claiming that it has very negative effects to the environment. However, plastic molding helps to keep waste levels down, keeping plastics out of landfills and disposal centers.


Firstly, why is plastic considered bad for the environment? Plastics take a long time to break down, which leads to quickly filling up landfills if it just dumped there after a short time being used. So making more plastic products would be bad wouldn’t it?

Not necessarily. Plastic molding is a very low waste process which reuses almost all waste products. Plastics can be remoulded into new products once they are used, keeping them out of landfills and making them useful once again. By recycling plastic products, plastic moulding actually helps the environment by keeping plastics in use rather than in the landfills.

How Does Plastic Moulding Work?

If you are having a custom plastic item made, you may very well be interested in how rotational plastic moulding works. It is actually a rather interesting process.

First, a mould is created of the item that is to be produced. These moulds are usually produced from CAD drawings, but it is possible to work from paper designs or physical models. Any metal items to be moulded are then fitted to the mould.

Polymer powder is then added to the mould and the mould is securely closed. The mould is slowly heated with hot air and rotated simultaneously. The movement of the rotation distributes the polymer evenly within the mould while it slowly begins to adhere to it. The moulded is then cooled, setting the polymer.

Now the mould is opened and the product removed from the mould, ready for any finishing and assembly. The moulding process is complete! Now the mould can be fitted with any new inserts and new powder put in ready for the next cycle.