Roller conveyor is one of the material handling equipment, and also the best choice for carton transportation.The roller conveyor has two frame styles: high roller (RSH) and low roller (RSL), which promote the development of the roller conveyor.

What do you know about these two frameworks? The following will take you through RSH and RSL.

What is RSH?

RSH conveyors are standard with 6-1/2 inch high side frames and 1.9 inch diameter carrier rolls. They are called RSH because the top of the rollers are positioned 1/4 inch higher than the top of the conveyor side frame.

What is RSL?

The RSL frame is designed to have a frame height of 8-1/2 inches while keeping the rollers in the same position as the bottom of the frame. This allows the higher frame to be 1-3/4 inches higher than the top of the rollers, so the rollers are set lower relative to the top of the frame.

What are the advantages of RSH and RSL?

RSH and RSL have different functions. The following will show you their features and choose a more practical framework type.


Since the RSH frame style roller is directly above the frame, the height of the built-in guide rail does not need to be pulled out, which can effectively reduce the operator’s work intensity.

If the size of the product you are transporting is larger than the belt width, you can choose the RSH frame, because the RSH frame will attach the load directly to the frame.


Easy and fast installation:

With the reflector and accumulation kit pre installed, RSL becomes more convenient in installation. RSL will install relevant settings during production, reducing the team’s installation time and improving labor efficiency.

Reduce installation costs:

The labor cost is more flexible, and the installation of low setting rollers does not require more time in unpacking, parts sorting, installation and setting.

Stable transportation:

When installing and setting the RSL channel, install the flow label on the side of the end of the conveyor frame, and then slowly push it to the surface at the feed inlet to help the seamless connection between the two parts, prevent the jam phenomenon in the cargo transportation, and ensure the smooth transportation of products.

Sensor handling:

In cargo transportation, smaller size products are worth considering separately. Because smaller products are easy to get stuck on the guardrail during transportation. If such problems cannot be found in time, it will cause the conveyor system to jam, which will directly affect the productivity of the entire conveyor system.

However, RSL can avoid such problems. During installation, sensors are set to detect the target, so as to sensitively sense the goods transported, especially smaller products.

The installation of guardrail is more convenient:

Because RSL is equipped with built-in guardrails, the purchase cost is relatively favorable, which can also meet many needs. When a higher guide rail is required, simply bolt the channel or angle guardrail to the top flange of the conveyor frame, and use RSL to install it more easily.

It will take more time to install the fixed channel guardrail to the RSH frame, as shims must be used to allow the cumulative photoeye beam to see the opening of the reflector. This means more components to handle, additional risk of errors, and more installation time per foot.

In contrast, the installation and use of the RSL framework will have more advantages. RSL can not only reduce labor and consumption costs, but also specially adjust sensors suitable for product types. If you are considering frameworks, the RSL framework is a good choice.

Of course, no matter which framework you choose, the one that is more suitable for your product transportation is the most appropriate. I hope the above content can help you solve the problems on the roller conveyor.

If you want to know more about conveyor problems, you can contact Nar, and professional technicians will provide you with solutions.

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