Sungda Conveyor Belt Co.,Ltd.

With the continuous integration and development of globalization, the demand for conveyor belts is also increasing, and the number of conveyor belt manufacturers in the market is also increasing. This has advantages and disadvantages for customers. The good thing is that there are more choices. The downside is that the number of conveyor belt products is dazzling, and it is easy to choose the wrong conveyor belt if you don’t know which conveyor belt to choose. The following three aspects will be analyzed for you, how to choose the most suitable conveyor belt for your own use.

1.Selection of conveyor belt carcass material and structure of conveyor belt: The performance of rubber conveyor belt has a great relationship with the carcass material, structure and number of layers.

Cotton fabric (CC) multi-layer conveyor belts have the characteristics of fatigue resistance, corrosion resistance, light weight and low cost. The disadvantage is that the CC carcass strength is low and the energy consumption is high.

Nylon (NN) conveyor belt has high strength, high elasticity, light weight, good impact resistance, bending resistance, very good troughing forming performance, mildew resistance and water resistance better than cotton fabrics. The disadvantage is that the elongation of the conveyor belt is large.

EP Fabric

Polyester (EP) belts are similar in strength to cotton fabrics belts. It has the advantages of nylon belt, and the elastic modulus is higher than nylon. Low elongation and good dimensional stability. It is an ideal conveyor belt commonly used in industry. High strength, small elongation, short tensioning stroke, especially suitable for mass transportation. High belt speed, long distance conveying requirements

2.Selection of cover rubber: The main components of cover rubber are various natural rubber and recycled rubber. Since the properties of various rubbers are also very different, such as natural rubber, styrene-butadiene rubber with good heat absorption capacity and wear resistance, especially EPDM rubber, nitrile rubber with good oil resistance, butyl rubber Therefore, the choice of covering material must be comprehensively considered according to the size of the conveying volume, the nature of the material being transported, the temperature and the operating environment of the conveyor belt.

EP CONVEYOR BELT CARCASS

3.Selection of the thickness of the rubber cover thickness: Increasing the thickness of the additional rubber cover thickness is also conducive to improving the impact resistance and wear resistance of the rubber conveyor belt. In particular, the cotton fabrics carcass has been replaced by a synthetic fiber carcass, and the carcass is to greatly improve the performance, and the thickness is relatively thin. In order to improve the overall performance of the conveyor belt, the thickness of the rubber cover thickness must be increased to give full play. Its advantages can improve the service life of the conveyor belt, but the thickness of the covering layer will make the running resistance of the heavy conveyor belt, which will increase the operating energy consumption and limit the conveying volume, so it must be considered comprehensively. The thickness of the cover is 1.5~3 mm for bottom cover, and the thickness of the top cover rubber is between 2.5~6 mm (the heat resistance belt is 4~8 mm), which is a more economical choice.

4.Selection of the number of layers of the belt carcass: The number of layers of the belt carcass of the conveyor belt is not as much as possible. Excessive number of layers will increase the pressure of the conveyor belt when it passes through the drum, so that the strong layers of the conveyor belt face delamination. Generally speaking, in the case of ensuring the overall strength of the conveyor belt, it is an ideal choice between 3~6 layers

In addition to the above 4 tips, the selection of the rubber conveyor belt plays a decisive role in the size, sharpness of the material, and the specific properties of the material, including: loose density, angle of repose, particle size, lumpiness, and material properties. Humidity, abrasiveness, cohesion and coefficient of friction of the material. In addition, the working environment of the rubber conveyor belt, daily operation time, working frequency, service life, feeding and unloading methods, etc., all directly affect the choice of belt conveyor.

SUNGDA CONVEYOR BELT CO.,LTD

The rubber profile ready for package
Tags: manufacture,Rubber conveyor belt

Tags: EP conveyor belt

Quality considerations are a significant area to be aware of when designing custom rubber seals, gaskets or mouldings so here are some top tips for your consideration. They are based on speaking with design engineer customers and DP Seals 40 years experience and expertise in the custom rubber seals, gaskets and mouldings business.

TIP 1: Think about and prioritise the different aspects of quality before talking with your manufacturer

Prioritisation is key and one of the best tips I can give design engineers is to really think about what they mean by quality before discussing this with their manufacturer. Quality could mean less flash, split line, integrity, surface finish, appearance or even rubber mix. Prioritising your requirements will really help in discussions about material selection and design considerations.

TIP 2: Understand where you do need extra quality as well as where you don’t!

Following on from the previous tip I think it’s important to review the overall design of the part basics, like fit and function. Review elements such as hardness, material choice, tolerance criteria, surface finishes and feed point positions to build a strong picture of where you do and don’t require extra quality.

Tip 3: Closely consider the capability and credentials of your manufacturing partner.

A custom made rubber moulding can sometimes really push the boundaries with, for example, the need for tiny holes, radius or lip features. All of these details are very often critical to how the component functions in application and this may necessitate the requirement for no ‘flash’, ‘feed’ points or ‘split’ lines in these areas.

Thoroughly consider the toolmaking, design, moulding, prototyping, manufacturing, quality and accreditation standards of your manufacturer. At DP Seals, for example, it is our patented ‘transfer’ moulding system and first class approach to quality that makes many of the demanding requirements we’ve described above possible.

TIP 4: Get your manufacturing partner involved in the process as early as possible

The most important thing for a manufacturer is to have the opportunity to be involved early in the design process. At DP Seals, as a team with over 40 years experience we can add real value at this stage through our expert knowledge in material selection, design experience, prototyping and helping with all the points we’ve made in this article. 

Summary

In this article we’ve touched on some of the key things design engineers should consider in respect to quality when designing custom rubber, seals, gaskets or mouldings. We’ve mentioned:

• the importance of prioritisation
• thinking about different quality requirements for different aspects of the design
• sharing what you don’t need as much as what you do need
• choosing a manufacturer with the required credentials and capabilities
• involving your manufacturer early in the design process

Of course we’ve largely written about quality in respect to finish of the part in this article but we like to consider quality throughout the whole design and manufacturing process. From initial discussions through to your manufacturing partner checking that you’re happy with the solution after receipt of the parts. Quality should run throughout.

It’s also important to remember that quality is just one consideration and shouldn’t be seen in isolation. Every design is different with its own unique features. That’s why we’ve produced the following articles and support which will help you think about many of these other considerations.

Other articles include:

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Guides

Videos

These videos provide useful tips, advice and information about the rubber moulding process and DP Seals.

If you have any questions about this post or thoughts about other top tips I’d love to hear from you in the comments below.

ABOUT THE AUTHOR:

Andrew Piper is the Managing Director of DP Seals a renowned, global custom rubber seals, gaskets and mouldings manufacturer. DP Seals manufactures high precision custom seals, gaskets and mouldings for the Aerospace, Subsea Oil & Gas, Medical, Specialist Automotive, Motorsport, Food & dairy and Instrumentation & electronics sectors. Based in Poole, UK, the company has 40 years expertise and experience.

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