Pulley Lagging
Your Professional Pulley Lagging Supplier
Qingdao Best Friend Rubber & Plastic Co., Ltd. (Short as QBF) has been involved in the design, manufacturing, engineering, and service of bulk conveying systems. They focus on the production, research and development of European standard long-life sidewall conveyor belts and other special rubber conveyor belts. Our products include sidewall conveyor belts, specialized conveyor belts, conveyor belt accessories, a cold bonding system, and pulley lagging.
Why Choose Us?
Rich Experience
Our management team has over 20 years of experience in the material handling industry.
Broad Market
QBF products are exported to more than 50 countries and regions around the world. They have replaced 90% of domestic imports of conveyor belts.
Wide Range of Applications
QBF products have been successfully applied in the mining, metallurgy, power plants, chemicals, tunneling, harbors, and other industries, providing innovative and efficient solutions for bulk material transportation.
Leading Service
QBF can provide full life cycle services, including pre-sales, sales, and after-sales services. QBF can always provide customers with technical diagnosis, conveyor system design, installation, engineering maintenance, spare parts, dust removal systems, and all kinds of conveyor belts as well.
Definition of Pulley Lagging
Pulley lagging is the process of bonding a layer of rubber to the conveyor pulleys shell. Lagging & grooving is often used in applications to reduce belt slippage and to lengthen the overall service life of the roller. Having a specific lagging on the conveyor pulley reduces wear and friction.
What are Advantages of Pulley Lagging？
Improved Traction
One of the primary benefits of pulley lagging is that it improves traction between the belt and the pulley. This can help to prevent slippage, which can cause a range of issues, including increased wear and tear on the belt, reduced efficiency, and even the potential for accidents.
Increased Belt Life
Pulley lagging can also help to extend the life of your conveyor belt. By reducing slippage, pulley lagging helps to reduce the amount of wear and tear that your belt experiences, which can help to prolong its lifespan.
Improved Conveyor System Efficiency
Another benefit of pulley lagging is that it can improve the overall efficiency of your conveyor system. By reducing slippage and improving traction, pulley lagging helps to ensure that your conveyor system is operating as efficiently as possible.
What are Features of Pulley Lagging?
As much as 50% increase in coefficient of friction over non-lagged pulleys.
Protects pulley face from wear and extends pulley service life.
Herringbone and Diamond Grooves shed water and dirt promoting a self-cleaning effect.
Improves Belt Tracking.
Types of Pulley Lagging
Rubber Lagging
Rubber is the most common type of pulley lagging. It is a relatively ‘soft’ material which offers good traction and is resilient to wear. Other functions include protection for the pulley shell and increased friction for conveyor belts.
Pulley
There are many options when considering rubber lagging. It can be grooved and shaped to offer greater flexibility depending on your application.
Another added benefit of rubber is its one of the most affordable types of pulley lagging.
Rubber lagging is a versatile product. Depending on your application, different properties such as thickness and hardness can be utilised to achieve your outcomes. Rubber lagging can also be grooved into just about any shape or pattern.
One of the challenges with rubber lagging is that the operational life is limited and must be replaced routinely. Belt slippage can still occur even though rubber lagging increases friction to the conveyor belt.
Rubber lagging is not the most optimal pulley lagging product to achieve high levels of friction.
Ceramic Lagging
Another common type of pulley lagging is ceramic. Ceramic is used because it is a more hardy and durable material than rubber. Harsh conditions and abrasive material are the two usual reasons why ceramic lagging is considered.
The most common types of ceramic lagging are ‘smooth’ and ‘dimple’. Both of these products offer a significant increase in friction, grip and tracking of the belt and elimination or reduction of belt slippage.
Pulley LaggingCeramic lagging is a more expensive option than rubber lagging however ceramic lagging has a greater service life and reduces lagging wear.
Drive pulleys are usually lagged with dimple ceramic lagging because the increased fiction and grip assists in driving the conveyor belt. The coverage of ceramic on the surface of the lagging can be customised depending on your application and is used to increase or decrease friction and grip.
It can also be used to increase wear resistance depending on your needs and budget.
Non-drive pulleys can be lagged with smooth ceramic lagging. This is less common than drive pulleys as ceramic lagging is more expensive than rubber lagging and is only used when necessary.
Ceramic lagging can be applied to the pulley shell as a rubber backed ceramic strip or sheet. The rubber backing is bonded to the pulley shell. The other method is to directly bond the ceramic tiles to the pulley shell.
Polyurethane or Plastic Lagging
Another type of pulley lagging is polyurethane or plastic lagging. Polyurethane lagging can be applied as a sheet or strip. The method of bonding is usually rubber backed polyurethane or cast the polyurethane directly on to the pulley shell. Although not as common as rubber and ceramic, polyurethane lagging is gaining popularity in some applications and can provide good service life. Cast polyurethane lagging can be very expensive to apply and extremely difficult to remove for repair, thus its generally only used when rubber and ceramic lagging has proved less serviceable.
Pulley Lagging Installation Process
Isconnect the Power Supply and Hang the Safety Warning Board
We shovel glue according to the status of residual glue on the roller surface. If the residual glue exceeds 0.5m, a shoveling glue machine must be used to remove the residual glue.
Before shoveling the glue, the roller must be rotated by humans. If it cannot be rotated, the connecting pin between the roller and the reducer must be removed. If the residual adhesive area is less than 0.5m, then there is no need to shovel the adhesive.
Note: When shoveling the glue, the angle between the flat chisel and the roller surface should be 15-30 degrees, or it will shovel off the steel body, and damage the flat chisel.
Polishing
There are many dirt, dust, grease, water, rust, and other organic or inorganic contaminants on the surface of the metal, which affect the wetting of the glue.
In order to improve the bonding strength, it is necessary to adopt mechanical, physical, chemical, and other methods to rough, clean, activate the surface of the adhesive, and change the surface properties.
It can facilitate the glue infiltration, make the glue have a firm binding, and finally improve the durability and service life of the bonding.
After the surface treatment, the metal surface can be changed into a kind of adhesive surface with high activity and high effective area.
There are two ways that can solve the problem, mechanical grinding and sandblasting. They can provide the surface with appropriate roughness, increase the effective bonding area, improve the glue to the surface of the adhesive infiltration, and the adhesion performance.
For the metal surface treatment of the roller, we usually use the steel brush or grinding machine to brush the loose oxide layer.
At present, the angle grinder with a tungsten steel buffing disc to do the grinding treatment, not only can improve the grinding efficiency but also prevents the aging phenomenon on the surface of the roller.
Cleaning
After polishing the surface, there is a lot of dirt, dust, grease, water, rust, and other organic or inorganic pollutants, which affect the glue adhesive effect.
We should use a cleaning agent to clean the surface. The cleaning agent should have good quality, which can protect the metal surface from corrosion.
You can clean it several times to make sure the surface is totally clean. After the cleaning, dry it for some time, it can guarantee a good adhesive effect for glue.
Transition
Brush a layer of metal primer evenly on the roller metal surface. Waiting an hour to let it dry completely.
The metal primer can not only prevent surface pollution but also prolong the storage life of the treated metal. It’s a great way to guarantee the wetting performance of the adhesive and increase its adhesive strength and durability.
Gumming
Evenly brush the prepared cold vulcanized glue on the roller metal surface, and let it dry completely. The drying time is about 15-45 minutes.
Brush the second layer of cold vulcanized adhesive after the first glue dries completely. After the second glue can slightly stick to the hand, you can do the final surface bonding.
The bonding surface of the common glue board should be polished and cleaned first, then brush the glue twice.
Bonding
You should fix the bonding reference line on the roller surface first. After the second glue brushing, it’s easy to find the reference line for the bonding pulley lagging.
Here is the line drawing method:
Take the two sides of the roller as the reference, draw the reference line with a square, steel ruler, and knife.
Cover the semi-vulcanized layer of the Conveyor Pulley Lagging with a clear plastic film.
Using the reference line found on the roller as a reference, tear the plastic film about 50mm wide and start to paste the Conveyor Pulley Lagging on the surface of the roller.
After confirming the correct position, start to tear off the plastic film. While tearing it off, wipe it down with your hands. Note: Don’t tear it too much, or it will be very firm after being glued and cannot be torn off
If the sticking is skewed and the sticking area is not large, you can drop the cleaning agent between the Conveyor Pulley Lagging and the metal body of the roller and slowly tear it off. Then brush cold vulcanized adhesive to the area where the Conveyor Pulley Lagging and the roller are pasted, and then paste it after it dries slightly.
Sealing
Use a knife to cut out the V-shaped opening at the seam of the Conveyor Pulley Lagging. The width of the outer opening is 15mm. Polish the V-shaped opening with a steel wire polishing brush, then brush off the rubber powder.
Next, you should brush the T2 adhesive to the V-shaped opening twice. Then use the T2 extrude gun to fill the T2 adhesive, at the same time, keep pressing down with a compacting roller.
Trimming
Use a rubber knife to cut off the excess rubber at the edge of the roller. Keep the angle of the rubber knife at an angle of 45° with the surface. While rotating the roller, remove the excess rubber.
Correct Operation Of The Conveyor
Notwithstanding the above, it is possible to achieve the optimum life from pulley lagging by observing the following basic pointers :
Ensure that a conveyor's take-up unit applies the correct load to the belt to prevent belt slip on the drive pulley(s) on startup.
Do not attempt to reduce belt slip by throwing sand or similar material into the pulley feed/nip point. This accelerates wear of the lagging.
Do not over-fill the conveyor as this will necessitate additional torque to start and run the belt, which may result in belt slip over the drive pulley.
Install and maintain a belt plough on the return belt, immediately ahead of the tail pulley. This will minimise the opportunity for lumpy material to be trapped between the belt and pulley, which results in localized damage to the lagging and belt.
Ensure that pulleys are correctly aligned so that the wear pattern is uniform across the pulley.
In the case of screw take-up units, ensure that the take-up is correctly adjusted to provide adequate belt tension under all operating conditions.
Prevent or address material spillage onto the return belt so that pulleys are in contact with a clean belt as far as possible.
Install and maintain belt scrapers to minimise material carry-over, which is deposited onto bend and snub pulleys.
If a drive pulley continues to slip on startup for no apparent reason, consult the designer to confirm the conveyor design parameters and start-up philosophy. Do not ignore the slippage!
Correct Design and Component Selection
The designer should ensure that the correct pulley diameter is used so as to prevent over-stressing of the belt and lagging.
Select the appropriate type and hardness of lagging to be used depending on whether the pulley is a drive, tail, take-up pulley and so on.
Use grooved lagging on drive pulleys which assists with traction, expels moisture and is less likely to slip when dirt has become trapped onto the return belt.
Follow recognized conveyor design procedures and equipment sizing guidelines when designing a conveyor.
Maintenance Measures
Inspect and monitor the condition of pulley lagging regularly.
Repair local damage to lagging before the damage propagates to other areas.
Ensure that re-lagging of pulleys is done by experienced personnel to maximize the useful life of the lagging.
Make a spare pulley available so that a damaged pulley, or damaged lagging can be removed from service and rectified or refurbished correctly and in a controlled environment.
The Considerations for Buying
Belt Type and Running Speed
The belt’s run speed has a significant impact on the lagging. However, the belt should always take priority as they are more costly to replace. When choosing a pulley lagging, consider how speed will wear out the lagging and affect the operating temperature.
Pulley Type
You can choose two different types of lagging for drive pulleys and tail pulleys even if they are on the same conveyer because they have different responsibilities. More grip is required for a head pulley lagging compared to a tail pulley.
The Environment and Operating Conditions
The climate, wet or dry conditions, and chemical contact all play a role in the type of pulley lagging to choose.
The Type of Material Being Processed
Product abrasion is an essential factor to consider. The abrasiveness of the material on the belt impacts belting requirements, which affects the type of pulley lagging to use.
Our Factory
QBF is one of the leading R&D company of Heavy-duty Cleat, PE board leak-proof structure, sticky material easy-to-clean formula and personalized color glue in China. Largest Sidewall conveyor belt single production enterprise in Asia.
QBF holds leading technology and market cases in the fields of lifting height, large Conveying capacity, steep incline lifting, single length, anti-stick and other products.
Our Certificate
QBF also follow global standards with certificate. QBF will be your solution partner in sidewall belting and special conveyor belt, accessories,etc.
Contact Us
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Frequently Asked Questions
Q: What are the Types of Conveyor Pulley Lagging?
Each specific type of pulley lagging has different specifications and purposes. The ideal type of pulley lagging is highly dependent on the design and application of the conveyor.
Rubber Lagging
Rubber is the most common type of pulley lagging as it is one of the most affordable conveyor component options. Rubber is a versatile material that varies in thickness, hardness and type of grooves. The two main types of rubber lagging are:
Plain Rubber Lagging for non-drive pulleys to provide better traction for the conveyor belt. One of the benefits of this option is that it won’t excessively increase the friction that could cause the belt to wear faster.
Diamond/Herringbone/Chevron Grooved Rubber Lagging is ideal for pulleys that require more friction on the conveyor belt. The diamond grooves on rubber provide added flexibility to move and bend with the conveyer belt. Another advantage of diamond grooved rubber lagging is that it sheds water off the pulley to prevent slippage.
Ceramic Lagging
Ceramic lagging is commonly used for harsh environments where long service life and the use of durable materials on conveyor components are a necessity. There are two types of ceramic lagging options:
Dimple Ceramic Lagging – The dimples in this type of lagging adds significantly more friction and grip compared to other materials. The dimples press into the belt, assisting in driving the conveyor efficiently. The amount of ceramic coverage selected will depend on the amount of friction and grip required for your application.
Smooth Ceramic Lagging is typically used with non-drive pulleys and offers a middle ground between dimple ceramic lagging and rubber lagging.
Q: Why use pulley lagging?
Lagging is a high-traction, rubber coating applied to a conveyor pulley. This layer separates the pulley from direct contact with the belt, reducing wear and boosting traction between the pulley-face and belt.
Lagging plays a key role in the efficient operation of conveyor systems. Well made and properly applied lagging:
Extends the life of the conveyor pulley
Shields the conveyor belt from abrasion
Increases friction to aid torque transfer
The advantages of lagging make it a no-brainer as an investment in your operation-critical machinery. Lagging can provide up to a 50% increase in coefficient of friction over non-lagged pulleys. It also extends service life considerably, meaning you’ll quickly see a return on investment through increased efficiency and reduced pulley replacement costs.
With vulcanized lagging, rubber protects the pulley from wear and extends the life of the pulley. Herringbone and diamond patterns in the grooves shed water and also act as a self-cleaning tool.
Herringbone grooved lagging offers superior traction and is highly desirable. Each groove acts as an exit path for water and other debris. Herringbone grooved pulleys should be applied in the conveyor in a manner in which the grooves point toward the direction of belt travel.
Diamond groove lagging also offers great traction and should be used on reversing conveyor travel.
If no patterns are desired, it should only be used in an environment where assisting in watershed is not necessary. It will still perform other functions, like increased friction and increasing the longevity of the pulley.
Q: What are the functions of pulley lagging?
Extends the life – of key conveyor components.
Reduces wear – from abrasive materials.
Prevents belt slippage – by increasing the coefficient of friction between the conveyor belt and the pulley.
Creates a self-cleaning action – on the pulley surface and prevents the buildup of transported bulk material, water, snow or ice.
Q: What are the specification tips for pulley lagging?
Plain steel drum pulleys (with no lagging) are best in dry, clean environments where traction is not critical, and when no foreign material is present on the return belt.
Drum pulleys with plain rubber lagging are typically used in snub applications where traction is not critical.
Drive pulleys that operate in wet or damp conditions are commonly grooved and are available in a smooth, herringbone or diamond design.
Ceramic lagged pulleys are used in applications with abrasive material on the return side of conveyor belt.
Q: What are the common types of pulley lagging?
Lagging is often applied in order to extend the life of the pulley by providing a replaceable wearing surface or to improve the friction between the belt and the pulley, thereby preventing costly maintenance and replacement of damaged pulleys. It also can reduce the chance that a belt will slip. Slipping belts will wear out, cause fires and damage your equipment. There are three common types of lagging used on pulleys:
Rubber – This lagging is soft and won’t damage the belt but also does not have a long lifespan. Drive pulleys are often rubber-lagged to improve the friction between the conveyor belt and the pulley.
Ceramic – This lagging is used in instances where the pulley operates in extremely aggressive conditions.
Replaceable strip – This lagging comprises a series of steel support strips, which are welded or bolted to the pulley. The lagging material, which is either rubber or ceramic strips, is then slid into the steel retaining strips to provide lagging on the pulley.
Q: How to maintain pulley lagging?
Regularly inspecting and monitoring its condition.
Repairing local damage before it affects other areas.
Ensuring that re-lagging of pulleys is done by experienced personnel to maximize the life of the lagging.
Having a spare pulley available so that a damaged pulley or damaged lagging can be removed from service.
Q: Polyurethane Vs. Ceramic Lagging: Which One Should You Choose For Your Belt Conveyor System?
The Pros And Cons Of Polyurethane Lagging On Your Conveyor
Also known as plastic lagging, polyurethane has been gaining popularity in non-drive pulley applications where there are concerns about carryback buildup between the belt and lagging. It can be applied as a sheet or strip, either bonded with rubber-backed polyurethane or cast directly on the pulley shell. Compared to rubber lagging, it has a three to five times longer service life and provides higher abrasion resistance. The low coefficient of friction makes polyurethane lagging kind to the belt bottom cover, making it the ideal solution for belts with premature wear. Polyurethane lagging also poses very little risk of damage to the belt cover. It is commonly used on bend pulleys where there is slippage between the belt and lagging surface.
However, cast polyurethane lagging is very expensive to apply and extremely difficult to repair, it is generally only used when rubber or ceramic lagging has proved less serviceable. Furthermore, polyurethane lagging lasts a maximum of five years before the pulley needs to be refurbished. As mentioned, this is a very costly and labor-intensive procedure, hence polyurethane is recommended to be used only for bend pulleys and non-drive pulleys on turnover conveyors.
The Pros And Cons Of Ceramic Lagging On Your Conveyor
Ceramic Conveyor Belt Pulley LaggingCeramic lagging is popular in applications where belt slip or high wear are a concern as it is more durable than rubber. The most common types of ceramic lagging utilize either smooth or dimpled ceramic tiles, both offering a significant increase in friction, grip, and tracking of the belt.
Ceramic lagging has four main advantages over other types of lagging:
The ceramic tiles are extremely resistant to abrasion so it can handle harsher materials and the dimples can significantly improve traction for drive pulleys.
The amount of coverage of ceramic on the surface of the lagging can be customized to your application and requirements, with options to feature 13%, 39%, and 80% ceramic coverage.
Ceramic lagging has a greater service life, which reduces lagging wear significantly.
Smooth ceramic lagging is the optimal choice for non-drive head pulleys; it has a flat, even surface for the belt and belt cleaners to run efficiently.
There aren’t many negatives to consider when installing ceramic lagging, but it is best to get expert help when choosing the right type of lagging for your belt conveyor system. For example, depending on the conveyor design when choosing dimpled ceramic lagging, belt clawing or bottom-cover damage can be displayed if there is belt slippage present, as the dimples can claw the backside of the belt. So, it makes sense to talk to a trusted expert when deciding what lagging is best for your system.
Q: Why Ceramic Tile Lagging?
Ceramic Tile Lagging Provides Better Traction and Positive Drive
Ceramic Tile Lagging provides greater grip, is great for slippage reduction and sheds water and dirt, which is ideal to combat wet slurry and harsh environments. The tiles are extremely abrasion resistant and naturally improve traction between your componentry. The tiles have better surface contact with the conveyor belt and allow the belt to operate under a lower belt tension and provision for less take up weight.
These positive attributes also sustain your equipment and increase their service life. However when utilising these tiles you must ensure that they are ‘fit for purpose’ otherwise they will do more harm than good.
Ceramic lagging is typically profiled with dimple ceramic tiles, which are embedded/molded into a durable rubber backing strip. These strips are then trimmed into lengths for cold bonding or hot vulcanising applications with the appropriate methods and adhesives. Budget wise, ceramic lagging is dearer but has a greater service life and reduces lagging wear in comparison to Rubber Lagging types.
Q: What are the preliminary preparations for installing pulley lagging?
You can use the object thermometer or infrared thermometer to measure the temperature, including the environment and metal surface of the roller.
Measure the humidity
Use the hygronom to measure the humidity of the environment.
Check the Dew point value
The dew point value is the lowest temperature on the surface of the roller steel body. You need to find the dew point value according to the “Dew point value query table”.
Note: When the lowest temperature on the steel body surface is lower than the dew point value, a drop of water will be formed. The site shouldn’t be constructed.
Check the space for the roller working
The space for the roller working will directly decide whether the roll is removed or not.
Requirement:
The upper space distance from the roller is more than 1000mm,
The lower space distance is more than 300mm;
The left and right distance is more than 1000m
Time: Calculate by 0.5 square hours per person, if the space is large enough, and the technicians are skilled, two people can work at the same time.
Fixed the roller types and specification
The roller can be divided into drive roller, reversing roller, and surface-increasing roller.
The driving roller is driven by a motor or other power equipment, by which the power is transferred to the conveyor belt.
A reversing roller can change the initial running direction of the conveyor belt, which does not transmit power to the belt.
The surface-increasing roller is used to increase the contact area between the driving roller the reversing roller and the conveyor belt.
You should confirm the conveyor belt speed, site environment, and load-bearing conditions, fix the shape and thickness of the wear-resistant rubber pulley lagging. Measure the length and diameter of the roller and calculate the amount of material.
Note: The driving roller needs to be carved on the black surface of the wear-resistant rubber pulley lagging, it should be finished before entering the site. the carving depth should be half of the thickness of the plastic board, if there are several pieces of plastic board, the board grain should be consistent.
The thickness details:
Roller Diameter Pulley Lagging Thickness
Diameter ≥600mm Thickness：8-10mm
Diameter ≥800mm Thickness：10-12mm
Diameter ≥1000mm Thickness：15-20mm
Note: Please strictly follow the actual design standards.
Fixed the distance and the hoisting ways
We should confirm the distance between the conveyor belt and the roller, and make sure there is enough space to work.
Requirement: The lifting height shall be to let people stand in front of the roller normally and have a certain amount of space to back up. When lifting all the adhesive tape from the roller, it cannot contact the roller.
Confirm power supply for tools
Requirement: Voltage: 220v， Power: 4kw. If you need to do the down-hole operation, please make sure that all the tools are not explosion-proof, and your clients need to do the special downhole operation procedures. The electrician should be there all the time.
Fixed the material and transportation
Essential tools: measuring calipers, tape, folding rule, marking powder cord, rubber marking pen, Dan Carcross knife, layering knife, layering stripping hook, cleaning brush;
Personal protective equipment: helmet, work clothes, helmet shoes, gloves, flashlight, protective glasses, earplugs, work notebook, work permit.
Space available for Conveyor Pulley Lagging cleaning and brushing
A place should be available on the site to clean the glue board and brush the glue. The place should be as flat as possible, keep drying, no dust. Because the water and dust will affect the glue bonding effect.
Prepare four iodine tungsten lamps or halogen lamps
The iodine tungsten lamps are used to raise ambient temperature, they should be placed in front and rear of the roller. at least 30cm from the roller.
Material recommendations
A Diamond/Ceramic conveyor pulley lagging is recommended for the drive roller wheel. For the guide wheel, tailwheel, and tensioning wheel: it is recommended to use a flat plastic plate with no slotted surface.
Q: What are the precautions for installing pulley lagging?
Polish and polish thoroughly, and make sure there is no residual glue, rust spots, pits, or flaps.
Brush the metal primer or metal treating agent evenly, and dry thoroughly. You can use a hot air dryer or other dry tools.
Brush the glue evenly twice, brushing it from one direction to another, it can avoid the failure of glue wrapping caused by bubbles. Brush the glue twice only when it is dry, and brush the glue only when it is dry for the second time.
Roll and knock from the middle to both sides during gluing, so as not to produce bubbles and lead to failure of gluing.
Sealing, the size should be calculated, and no gaps or blobs should be allowed.
Q: What factors should you consider when choosing pulley lagging?
Resistance to temperature, light, oils, fats, acids, alcohols and water, as well as compatibility with food products, are all factors that need to be considered when selecting a lagging material. Select a lagging material that is compatible with the conveyed material and has resistance to the conditions of the intended environment.
WEAR CHARACTERISTICS
The durometer, strength, and abrasion resistance of the lagging material will impact its ability to provide traction, wear properly, and hold up to tearing, peeling, or eroding.
MAINTENANCE
The type and style of lagging selected will impact the serviceability of the conveyor pulley when it requires recoating. Some styles allow for field installation of replacement lagging while others require that re-lagging services be conducted at a re-lagging facility.
BELT MATERIAL
The type and style of lagging selected will not only impact the coefficient of friction that is achieved between the conveyor pulley and conveyor belt, but also may impact the likelihood of reversion. Consult belt manufacturer specifications when selecting a lagging material.
RELEASE PROPERTIES
The type and style of lagging selected will impact its ability to prevent sticking or adherence of foreign particulate to the surface. If ease is desired in eliminating foreign material from exposed lagged surfaces, then a lagging compound with good release properties should be considered.
Q: How to Install Pulley Lagging?
Clean the pulley surface thoroughly to remove any dirt, debris, or old lagging material.
Apply an adhesive to the pulley surface and the lagging material.
Align the lagging material with the pulley shell and press it firmly to ensure a good bond.
Allow the adhesive to dry completely before using the conveyor system.
It's essential to follow the manufacturer's guidelines and recommendations for specific installation procedures and adhesive types. Hiring a professional installer can ensure proper installation and optimal performance.
Q: What is the basic function of pulley lagging?
This is especially important for drive pulleys. Maximizing traction helps to prevent slippage during start up and operation. Slippage in the best-case scenario will wear away the conveyor belt, but in the worst case will cause a fire. Slippage is the main cause of fires on conveyor belts.
Provide Wear Protection for the Conveyor Belt and Pulley
Pulley Lagging should be viewed as the sacrificial material due to the fact that it is far less expensive than the Conveyor Belt or Pulley and far less expensive to replace in terms of material costs, downtime costs and replacement job costs. It is important to note that bare pulleys wear away quickly through normal operation of the conveyor belt.
Pulley Lagging should provide a cushioning effect to prevent or reduce damage to the Conveyor Belt and Pulley caused by debris trapped between the Conveyor Belt and Pulley.
Q: Does Your Conveyor System Need Pulley Lagging?
The configuration of your conveyor system is one of the primary factors that will determine whether or not you need pulley lagging. If your conveyor system has a steep incline or decline, or if it is operating in a wet or slippery environment, pulley lagging may be necessary to prevent slippage and ensure safe and efficient operation.
Type of Conveyor Belt
The type of conveyor belt you are using will also play a role in determining whether or not you need pulley lagging. Some types of conveyor belts, such as those made of PVC or urethane, have a higher coefficient of friction and may not require pulley lagging. Other types of belts, such as those made of rubber, may require pulley lagging in order to ensure proper traction and prevent slippage.
Type of Material Being Transported
Finally, the type of material being transported on your conveyor system will also play a role in determining whether or not you need pulley lagging. If you are transporting heavy or bulky materials, or if your materials have a high moisture content, pulley lagging may be necessary to prevent slippage and ensure safe and efficient operation.