10 Questions You Should to Know about Steel cord conveyor belt for heavy-duty applications

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When choosing a belt conveyor system, one of the most important decisions you'll have to make is which belt it should be equipped with. In most cases it's the only part of the conveyor that's actually in contact with your parts, product or packaging.

Here are eight important questions to ask when choosing a belt:

What is the coefficient of friction? ' Belt surfaces range from an extremely low coefficient of friction to a high coefficient of friction. Low friction belts are ideal for accumulation applications or side-entering or -exiting applications where product must slide while the belt continues to move. High friction belts are often found in incline applications up to 15° to ensure positive product movement simply through friction between the product and the belt.

What are the maximum and minimum temperatures? ' There are two temperatures you should be concerned with: ambient operating temperature and temporary part temperature. Each is important for the long-term function of the belt. Ambient temperatures that are too cold can lead to brittleness and cracking of the belt; temperatures that are too high could lead to belt stretch or delamination at the splice. Short-term part temperature specifications ensure hot parts don't damage the surface of the belt when they're placed or dropped onto the conveyor.

What color is the belt? ' Color is most important in inspection applications, whether it's automated with cameras or a visual inspection by an operator. Proper color contrast with the product can be vital for spotting defects or impurities. Blue is very common in food applications since it's a color that rarely appears naturally in foods, making it easy to spot residue after cleaning.

Is the belt cut resistant? ' If your product has sharp edges, a cut resistant belt may be necessary to avoid cutting the surface of the belt. These belts typically include a hardened urethane or PVC top surface.

Should I use a sealed edge belt? ' To reduce particulates in cleanroom environments, a sealed edge belt is typically recommended. These encapsulate the cut edges of the belt to seal in the fibers of the carcass. Without a sealed edge, those fibers may be released as the belt flexes around the pulley.

Does the belt have release properties? ' In some applications, product may tend to stick to the belt, whether it's a sticky confectionery product or glue from a packaging process. A silicone belt helps to ensure the product is released cleanly.

Do I need cleats? ' Cleated belts are common for applications where parts need to be pushed up an incline or restricted from sliding or rolling down a decline. They're also used to maintain product spacing, especially in applications where parts are fed manually by an operator. Cleats are placed at custom intervals based on the customer's specifications and are available in a variety of heights for different products and applications.

What's in stock? ' All these considerations mean nothing if finding the perfect belt would push the lead time past the date you need the conveyor. With hundreds of potential belt types, it would be impractical for conveyor manufacturers to stock every type. Most manufacturers stock a limited number (at QC Conveyors we stock seven types, which cover about 95% of our conveyor orders) and rely on the belt manufacturers to supply others as needed. This can double or triple the lead time for the conveyor, so it's important to know which belts your conveyor manufacturer stocks, especially if you need a conveyor quickly. You may be able to compromise on one of the other requirements to help meet your lead time requirement.

To see photos and specifications of the various types of belts that are available, visit the Belts section of our website. You'll find filters that help you narrow down the belts to find the perfect one for your application.

If you want to learn more, please visit our website Steel cord conveyor belt for heavy-duty applications.

In addition, our Applications Engineers are always available to help select the proper belt for your application. They have decades of experience with various products and applications.

Choosing a timing belt can seem like a daunting task, they're more complicated than your standard conveyor belt. With multiple fabrication options, tooth profiles, dozens of backing/cover materials, and several layers on the belt, the whole process can be overwhelming.

Every timing belt application is different; there's no cookie cutter selection model to follow. Timing belt solutions need to be determined on a case-by-case basis. And, in order to select the most efficient belt for your plant, you'll want an expert's opinion on the matter. That's why the professionals at Accurate Industrial created this article: to guide you through answers to our most commonly asked timing belt questions.

Timing belt frequently asked questions:

1. How do I know when I need a truly endless belt vs. a welded endless belt?

• To answer this question, we will need to know what your timing belt is being used for. If your application requires the belt to transmit power, you will need a truly endless belt.
• Welded endless belts are fine for more common conveying applications. They carry components, ingredients, finished products, cartons, etc. on top of the belt. The 'timing' in timing belt indicates they are employed mostly to synchronize delivery of these goods in the production, packaging, or freight-loading process.

2. What cord type should I use?

• Again, different cord types are designed for different applications. Steel is typically the tensile cord material of choice, especially in power-transmission applications. It provides the highest tooth shear strength of any cord material.
• Kevlar cord is an effective alternative and is often used in metal detecting applications and when steel does not offer sufficient impact resistance for items dropped onto the belt. Kevlar CANNOT be used in wet or humid environments, cords constructed with aramid fibers absorb moisture, causing them to stretch and contract. These changes in fiber length can cause problems in belt performance, such as slippage and binding, altering the engagement between belt and sprocket teeth.

3. What is PAZ/PAR and why do I need it?

• PAZ/PAR are nylon fabric coverings that are molded to either to the back (PAR) or the tooth side (PAZ) of timing belts. The nylon facings reduce the coefficient of friction on both sides. PAZ, optimizes the interactions between the timing belt teeth and the pulley. Less friction will result in quieter belt operation and longer tooth life. PAR reduces friction between the timing belt and the product being conveyed. This functionality is especially key in accumulating applications and when easy product release from the belt speeds the operation.

4. What are the advantages and disadvantages of a pin splice?

• Pin splicing allows belts to be removed from and installed onto the conveyor without disassembling the machine. Pin-spliced belts can be replaced in as little as 10 minutes. This can save as much as eight hours and some cases days of valuable production time.
• However, pin splicing reduces the timing belt's tensile strength, preventing its use in power-transmission applications. (Note: welded endless belts are about half as strong as truly endless belts; pin-spliced belts are about half as strong as welded).

5. What is the difference between a molded cover and a spliced cover?

• Molded covers offer superior performance, 9 times out of 10 when there is failure it is at the splice location. Molded covers are continuous; they contain no seams that can fray or catch, causing failure after repeated use. The chemical properties of some rubbers and some other materials are not conducive to molded covers and can only be applied with spiced covers. One disadvantage of molded covers is the lead time. Manufacture and delivery of these belts can take 4 to 6 weeks.

6. How do I find out my timing belt's tooth style?

• The best way to determine the tooth style of your belt is by using a timing belt tooth gauge; contact Accurate Industrial for your free gauge.
• If you do not have a tooth gauge, you can determine the tooth style by observing tooth shape (rounded or trapezoidal) and measuring the pitch of the teeth (the distance between the centers of two adjacent teeth).

7. What type of cover (also referred to as backing) is best for my application?

The company is the world’s best High load steel cord conveyor belt supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

• For a full discussion of this topic and a comparison of all timing belt cover options, visit https://accurateindustrial.com/products/timing-drive-belts/timing-conveyor-belts/.
• Use this guide to determine the cover/backing type that will work best for you: