Plastic Bucket Mould

Inox Cast is an expert plastic bucket mould manufacturer in China. We offer a wide variety of plastic moulding solutions widely applied on different field application. If you need a plastic bucket mould to add to your production needs, Inox Cast is your ideal choice.

  • More than 20 years experience in plastic bucket mould
  • ROHS compliant plastic bucket mould
  • Strict quality control team to control production
  • Competitive price plastic bucket mould

Why Inox Plastic Bucket Mould is Your Ultimate Source

Inox specializes in manufacturing plastic bucket mould for over 20 years. Our capabilities to supply plastic moulding solutions will take your brand to next level. We are providing modern plastic bucket moulding; fully complies ROHS compliant. Regardless of the number of your orders, small or big, we are dedicated to providing a quality product.

Plastic Bucket Mould for Mop
Plastic Bucket Mould for Mop

Inox plastic bucket mould for mop is made of steel. It comes in various shapes, sizes, etc… Widely used in different industries and applications such as supermarkets, hospitals, hotels, kitchens, and more.

Plastic Chair Bucket Mould
Plastic Chair Bucket Mould

This plastic chair bucket mould is design and manufacture with the highest quality. As ISO9001:2008 certified company, we make sure every moulding meets the strict quality control.

Inject 6 Cavity Plastic Bucket Mould

Inject 6 cavities plastic bucket mould material from Inox can be made of 45#, P20,718,2738, NAK80, S136 etc. The size of moulding can be customized as per desire.

Plastic Storage Bucket Mould

This plastic storage bucket mould comes in various shapes, sizes, and capacities. Inox Cast design and manufacture this moulding with life 250000-300000 shots. Widely applied in vast industries including automotive.

OEM Plastic Bucket Mould

At Inox, we offer OEM plastic bucket mould feature high precision. The moulding comes with painted, deburr, and smooth finish. Color and size can be customized according to your own requirements.

Plastic Painting Paint Bucket Mould
Plastic Painting Paint Bucket Mould

This plastic painting paint bucket mould is made of plastic material. You can choose which color you desired since there are lots of colors available. Inox plastic paint mould life is more than 500000.

Round Plastic Paint Bucket Mould
Round Plastic Paint Bucket Mould

Inox round plastic paint bucket mould are manufactured using plastic/ steel. The cavity can be single and/or multi. The moulding size can be customized according to requirements.

25litres Plastic Bucket Mould

This 25litres plastic bucket mould is designed using plastic material. We offer OEM service including customized logo, single/ multiple cavities and various mould materials.

10 gallon Plastic Water Bucket Mould

Inox 10 gallon plastic water bucket mould can be made of P20/718/738/NAK80/S136 mould. The average mould life is 300K~700K. Polishing is the surface treatment. Normal delivery time is 35-45 days.

Custom plastic bucket mould

Inox can custom plastic bucket mould with material like 45#,P20 steel,NAK80,718H,SKD. The weight of moulding vary according to your requirement. And the mould life can speed up to 500,000 shots.

Plastic White Bucket Mould with lid

This plastic white bucket mould with lid is made of steel material, P20/718/738/NAK80/S136. It comes in a single cavity. Can be hot runner/ cold runner. The model number can be customized.

Small plastic wheels bucket mould
Small plastic wheels bucket mould

Small plastic wheels bucket from Inox is certificated by ISO9001. It has an eco-friendly structure. The color, shape, size, and other features can be customized according to requirements.

Inox Plastic Bucket Mould

Inox Cast – Your Reliable Plastic Bucket Mould Manufacturer

Inox Cast is an experienced manufacturer of plastic bucket mould. We offer distinct categories of plastic bucket moulding ideal for making a vast range of items. From household products, appliances, automotive, to other commercial products. Inox Cast is your best place to be.

Inox Cast plastic bucket mould comes in a sturdy and of optimum quality. It can be made of plastic material, PP, PE, ABS, metal, PET, PVC…etc. These mouldings are well-known for their robust structure. It also offers high precision while shaping the products.

You can also select the surface finishes like texture, polished, EDM marks, and others. At Inox Cast, you can find both single-cavity or multi-cavities.

Meanwhile, our plastic bucket mould can be fully customized. We can manufacture mould according to your specified size, shape, colour, and features. We offer OEM products that best fit your manufacturing plant.

Inox Cast offers a massive range of durable and high precision plastic bucket mould. The moulding comes in different life shots depending on the request.

Inox Cast plastic bucket mould can be used using design software like CAD. With Inox, you can save money, time and effort as we make sure to deliver the best product and services. Our products are available in both, OEM and ODM along with customized packaging.

Inox Cast plastic bucket mould got the ROHS, CE, … ISO certification. With more than 20’ years of experience in plastic bucket mould, we focus to launch the best-quality moulding with the latest technology.

For more than two decades in the field, Inox Cast gained an amount of expertise in the plastic bucket mould industry. We are dedicated to providing you with excellent kind of services. Through our skilled, knowledgeable, and dedicated staff, we are able to produce innovative plastic bucket mould.

Inox Cast is capable to manufacture custom service of plastic bucket mould if necessary. Regardless of the complexity of the layout, we can design and supply product according to your requirements. Our goal is to exceed individual customers project requirements.

If you are interested in Inox plastic bucket mould, please don’t hesitate to contact us today!

Plastic Bucket Mould: The Ultimate FAQ Guide

This guide has all information you are looking for about plastic bucket mould.

Whether you want to learn about features, specification, material type or any other feature – you will find all information right here.

So, keep reading to learn more.

1.  What Is A Plastic Bucket Mould?

A plastic bucket mould is a cavity that you will use in an injection moulding process to make various types of plastic buckets.

The process entails injecting molten plastic into the mould and on solidifying, it will take the shape of the mould.

plastic bucket mould

plastic bucket mould

2.  What Types Of Plastic Bucket Moulding Can Employ When Using A Plastic Bucket Mould?

There are different ways you can use a plastic bucket mould when conducting a plastic bucket mould.

The various versions you can use include the following:

Rotational Moulding

This is also known as roto moulding.

It entails placing molten material in the mould and rotating it within an oven until it takes the shape of the mould.

The centrifugal force will create a plastic bucket with even wall thickness and once it hardens, you will remove it from the mould.

Rotational moulding

Rotational moulding

Besides, this process is economical and environmentally friendly, and you can reuse the surplus material.

Furthermore, you can include inserts, logos, curves, etc. on the plastic bucket mould.

Injection Moulding

This version entails making custom plastic buckets by injecting liquid plastic substances at high-pressure levels within the mould.

Once the plastic cools, you will open the mould to remove the plastic bucket.

This method is suitable when making large amounts of custom plastic buckets

Also, you can include different resins and additives to enhance flexibility for engineers as well as designers.

Injection moulding

injection moulding

The mould is costly as the material construction is steel or aluminum.

Blow Moulding

This method is suitable for making hollow and thin-walled plastic buckets.

Furthermore, it ensures the wall of the plastic bucket is uniform thus suitable when the shape is vital.

Blow moulding

Blow moulding

This process entails blowing hot plastic using air once you heat the plastic.

Here, you will blow the plastic within the mould and as it expands, it will press against the wall of the plastic bucket mould.

Once it fills the plastic bucket mould, it cools and hardens, and this process occurs within 2 minutes.

This process is economical and fast and the mould costs less than rotational and injection moulding.

Compression Moulding

Here, you will place heated plastic in a heated plastic bucket mould.

Afterward, you will press it until it takes a specific shape.

The heating process ensures that the plastic bucket maintains maximum strength.

Compression Moulding

compression moulding

Once you complete the process, you will cool, trim and remove the plastic bucket from the plastic bucket mould.


Here, you will heat a thermoplastic to a temperature, after which the plastic bucket mould will shape it.



Thermoforming will use different types of moulds to attain the final plastic bucket.

Furthermore, it uses low pressures and you can make the plastic bucket moulds inexpensively.

3.  What Should You Consider When Selecting A Plastic Bucket Mould?

The factors you should consider entail the following:

Build Speed

When you are constructing a new plastic bucket mould, it may require longer lead times.

For instance, you can build the plastic bucket mould in a few weeks or several months.

Ensure you evaluate your needs and not how quickly you can construct the plastic bucket mould.

Building a prototype can take between 3 and 6 weeks while production may take over 12 weeks.


The price ranges and this means you should include the budget early in your plans.

For instance, simple R&D plastic bucket moulds are cheaper than those with multiple cavities.

If you need several designs, it is suitable to have several R&D moulds.

Factors that determine the cost of a plastic bucket mould include classification, the complexity of plastics, mould cavitation and features.

A suitable manufacturer will take you through what drives your costs and advice on how you can have the best within your budget.

Project Development

The stage you are in during development is vital when selecting a plastic bucket mould.

Different development stages entail:

  1. Design
  2. Prototype
  3. Pre-production
  4. Production
  5. High volume

Within the early stages, expect low costs and construction quality since it entails several designs and changes.

Designing for production without research can prove to be costly as you may encounter several modifications.

Ensure you are realistic as to where you are in the development stage as it may save you money and time.


Specific component shapes and features need various mouding methodologies.

Some parts are constructed with hardened steel as opposed to soft materials which are common in the R&D phase.

Material selection is important in plastic bucket mould making.

Furthermore, some plastic buckets do not relate well to specific mould materials.

For instance, glass-filled nylon components need higher quality mould than that made of regular polypropylene.

Ensure you examine the entire functionality of the plastic bucket mould.


This entails considering the number of plastic buckets you want to make from the plastic bucket mould.

Consider if this is a test plastic bucket mould or a plastic bucket mould that you will use for several productions.

4.  What Are Some Classifications Of A Plastic Bucket Mould?

Plastic bucket moulds exist in different variations as the mould materials and construction techniques accomplish different purposes.

The Plastic Industry Association, formerly SPI, made a mould classification system that is the industry standard.

For instance, class 104 aluminum mould is cost-effective but not as durable.

This makes them suitable for the conception stage.

Class 101 or 102 hardened steel is durable but is expensive to construct, thus, suitable for use once you finalize your design.

The SPI made different classes for the categories of moulds.

Furthermore, the standard details the following:

  • The hardness of mould components
  • Construction approaches
  • Materials you are processing
  • Cycles you expect
  • Minimum cost

The five categories of plastic bucket moulds include the following:

Mould Class 105

This is suitable for industries that need to make between 100 and 500 plastic buckets.

It has a low investment requirement and is not as durable for large continuous productions.

This class is suitable for use early in the prototyping phase.

Mould Class 104

Biotech and medical industry startups begin with this aluminum mould, as long as all processes align.

Once you prove your concept, you will move into a single cavity steel mould, followed by a multi-cavity steel mould.

This technique allows you to responsibly prove your concept, conduct testing, plan for your investment, and increase production without it being costly.

Mould Class 103 And 102

This mould design is suitable for industries that need a medium to a high production rate of plastic buckets.

Mould Class 101

This is for complex parts that need production in the millions.

They are durable and expensive.

5.  What Parts Will You Find In A Plastic Bucket Mould?

There are several parts you will find in a plastic injection mould.

Furthermore, you can divide them into two categories, the cavity, and the core.

The cavity has the following:

  • Sprue which is a passage where the molten plastic will pass
  • Runners are smaller passages that allow molten plastic to pass from sprues to gates
  • Locating rings that prevent leakages and also assist in fixing nozzles to the sprue
  • Clamp plates that attach the plastic mould to platens
  • Clamp slots that accommodate the clamp plates
  • Guide pins that align cavities to the cores and will support the weights
  • Cooling channels that fill with water will cool the molten plastic when making plastic buckets
  • Cavities that will fill with the molten plastic

The core has the following:

  • Ejector pins that assist in the safe removal of plastic buckets from the plastic bucket mould
  • Guide pins that align the cavity and the core
  • Gates from which molten plastic enters
  • Ejector retaining plates that hold ejector plate pins and return them to position
  • Ejector plates that push ejector pins when releasing plastic bucket from the cavity
  • Support pillars that give support to the structure and bear the weight

6.  What Should You Consider When Designing A Plastic Bucket Mould?

Since the gate wears out first, ensure the design is durable and replaceable.

For instance, you can use D2 steel and carbide.

Also, ensure the diameter of the gate allows molten plastic to pass through.

Ensure the sprue orifice is large than the nozzle as this will inhibit any form of leakage.

The plastic bucket mould materials should be made of materials such as:

  • Beryllium-core alloy
  • Hardened steel
  • Pre-hardened steel
  • Aluminum

Steel is costly but is more durable than other materials and this means you will save a lot in the long run since it needs fewer replacements.

When designing the plastic bucket mould, consider the shrinkage allowance.

This ensures that the final plastic bucket has no defects.

Another factor to consider is the wall thickness of the plastic bucket mould as it will determine the cooling rate of the molten plastic.

Have an accurate calculation of the wall thickness so that the plastic bucket will cool uniformly.

When making the holes that assist the cooling system, make sure they exist on the core and the cavity.

This effect will ensure the cycle time is kept to a minimum.

Ensure you include the draft to the core and the cavity as it helps when you are ejecting the moulded plastic bucket.

The position of the gate should enable you to fill the cavity from the thicker areas to the thinner areas.

Furthermore, you should conduct polishing in the same direction as the flow of molten plastic.

This entails the flow within the sprue, runners, core, and cavities.

7.  What Is The Purpose Of Ejection Systems In A Plastic Bucket Mould?

The ejection system operates by releasing the final plastic bucket from the plastic bucket mould.

It is important since any malfunction will damage the moulded plastic bucket.

Furthermore, ejection systems contain ejector plates, pins, return pins, etc.

8.  What Is The Function Of Gates In A Plastic Bucket Mould?

This is the point where molten plastic will enter the plastic bucket mould.

It also determines the success of the moulding process as clogged gates inhibit molten plastic from entering the cavity.

This causes delay and will distort the whole moulding process.

9.  What Types Of Gates Exist In A Plastic Bucket Mould?

These include

Edge Gates

These are the most popular gates and are located where the two halves meet.

Pin Gates

These gates will direct the substance from within the core and are invisible from the outside.

For this reason, they are suitable for appearance.

Direct Gates

They come from the spur to the upper part and will lower the wastage of materials thus being suitable when making large plastic buckets.

Tunnel Gates

This sits under the parting lines and will automatically snap off during ejection.

10.  What Role Do Runners Play In A Plastic Bucket Mould?

Runners are small passages for the resins to pass through to the gate from the sprue.

They should be uniform and the thickness will determine how much pressure you will use when injecting molten plastic.

11.  Do You Require A Cooling System In A Plastic Bucket Mould?

Yes, they are vital for regulating the temperature of the molten plastic in the plastic bucket mould.

Factors to consider when designing a cooling system include:

  • Aircheck all circuits
  • Use brass and not expandable materials
  • The connection of water channels should not interfere with the clamps
  • Avoid obstructions of the water channels

12.  What Is The Effect Of The Thickness Of Walls In Plastic Bucket Mould?

The thickness of walls affects the moulding process and ensures it is uniform throughout.

Also, ensure you have a gradual transition if you need thicker and thinner walls for your product.

A uniform wall inhibits parts from warping when cooling the molten plastic.

13.  What Process Will You Take When Designing A Plastic Bucket Mould?

The various stages include:

  • Analysis of the plastic component
  • Designing
  • CAD
  • Analyzing mould flow
  • Confirming the design
  • Building the mould

14.  What Types Of Injection Moulds Can You Use With A Plastic Bucket Mould?

These include:

  • Hot runner

These have heated channels that direct molten plastic to the cavity.

  • Cold runner

This has unheated channels that forward molten plastic to the cavity.

15.  What Is The Size Of A Plastic Bucket Mould?

The size varies as per your requirements and this means it can be anywhere from a 1-gallon bucket.

16.  Which Materials Can You Use When Making Plastic In A Plastic Bucket Mould?

These include:

  • HDPE
  • ABS
  • LDPE

17.  What Services Can A Manufacturer Offer You When It Comes To A Plastic Bucket Mould?

A suitable manufacturer should offer the following:

  • Plastic bucket design
  • Plastic bucket mould design
  • 3d prototyping
  • CNC machining
  • Plastic bucket injection mould making
  • Plastic injection moulded bucket manufacturing

Depending on your unique, requirements, you can get all types of plastic moulds.

Contact us now for all your plastic moulds.

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