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  • How to Calculate Roller Pitch for Chain Driven Live Roller Conveyors

    Chain driven live roller conveyors are used to move the products such as carton boxes, plastic crates, totes etc at a controlled speeds higher or lower whatever it may be. Chain driven live roller conveyors are beneficial because there is positive engagement between chain and chain teeth and gives excellent power transmission for heavy duty loads also. It is often a complaint that chain driven roller conveyors have more noise. But the noise comes from improper engagement of chain and sprocket. This results because of mis-calculations of roller pitch. So lets understand it. Most of us have done chain tensioning to the cycle in their childhood. We do it, when the chain gets removed from the sprocket frequently, or their is chain noise. When you adjust the chain tensioning of the bicycle chain, you are actually managing the distance between the chain teeth, so that it engages properly. We do that by reducing the distance between two sprockets or by increasing the distance between two sprockets. This needs to be done periodically because the bolts gets loosened or chain elongates after long working. Now lets get to some basics. Any chain have pitch. If a chain is 4" chain, it means that when a sprocket moves by 1 teeth, the chain will move by 4". By the way 4" = 4inch = 4x25.4 = 101.6mm Below are the sprocket pitches which are generally used for conveyor rollers. 3/8" = 3/8 inch = 3/8 x 25.4 = 9.52mm 1/2" = 1/2 inch = 1/2 x 25.4 = 12.7mm 5/8" = 5/8 inch = 5/8 x 25.4 = 15.87mm For Roller Conveyors, chain is transferred from one roller to other. So there is no scope for tensioning as it will disturb other pair. So how we do that. The Best way is to maintain the optimum distance while design only and there is no need to tensioning. Lets consider an example. You have to carry a carton box of 400mm length, width 350mm and weight 50kg. For any product to be stable, there has to be 4 rollers below the product any time. So 400mm / 4nos = 100mm. The pitch should be 100mm. Considering pitch 100mm, the load on each roller will be 50kg / 4nos = 12.5kg The load capacity of each roller should be 12.5kg Check the roller capacity chart. Here we take roller dia 50.8 which comes with 1/2" x 14z sprocket. The pitch of roller is 1/2inch i.e. = 12.7mm Now 12.7 x 8 = 101.6mm So ideally the pitch should be 101.6mm If we keep that pitch 101.6mm, it will become difficult to put chain lock and join the chain. Hence to ease out the efforts, you can reduce the roller pitch and keep as 101.3 or 101 All chains come with Half Lock and full lock. so if we use half lock, we can also use odd pitches. e.g. 12.7 x 7.5 = 95.25mm. Please refer below video where a conveyor is running at 50meters/min

  • 10 advantages & benefits of conveyor systems

    Business Owners often hear that there are many advantages and the benefits of using conveyor systems. We are going to see what those are. Most of the time the benefits of conveyor automation systems are neglected considering the investment. In this article, we have tried to note down 10 conveyor automation uses and benefits. Conveyors reduce labor costs and increase productivity. Do they? Let's see all the advantages and benefits of using conveyor systems in detail about how the conveyor system will affect your work. What is Conveyor System? Conveyors move the material from place A to place B is the very much old concept of conveyor. There is a lot of advancement in conveyors, along with PLCs and Sensors. It is going beyond imagination using IOT - internet of things. There are different conveyor systems, and one chooses it depending on the application and expertise in the particular area. Below are some basic types of conveyor systems Flat Belt Conveyors Gravity Roller Conveyors Powered or Motorised Roller Conveyors Modular Belt Conveyors Spiral Conveyors Drag Chain Conveyors Screw Conveyors Overhead Conveyor System ... ... the list continues What is the difference between various conveyor systems? A conveying system is a mechanical piece designed to move the product with or without external power with or less workforce efforts A conveyor generally has an electric motor ( Except gravity roller conveyor ), which runs a media in the conveyor. The media then moves your parts, components, carton boxes. The media in the conveyor changes depending on the type of conveyor. The Belt Conveyor has media of Conveyor Belt. Roller Conveyors has media of Rollers. Screw Conveyor has media of Screw. Drag Chain Conveyor has media of chain. Overhead conveyor has media of chain. This way, some media moves the parts. The rest is structure and support to the media, and the total is a conveyor. There are absolutely no limitations as to which industries use conveyor belts. There are a number of applications of conveyor belt. Gravity Roller Conveyors advantages and disadvantages are different than belt conveyors. You need to understand various conveyor systems and then select the right conveyor system for your needs. Let's see below the advantages and benefits of conveyor systems Before that, let us understand what is the cost of labor. Direct labor costs are - - Wages - Direct employee benefits - Provident Funds, Canteen & Bus Facility, Medical Facility - Legal Compliance - ESI and record-keeping of various types. Indirect labor costs are - Supervision cost - The time spent in managing, record keeping of a large group of people is higher than a bunch of people. - HR - The cost of recruitment and replacement is very high. In addition to that, the legal compliance cost associated is also very high. We all know one of the major benefits of Conveyor installation is increased production at faster speeds but how? E.g., If you want to install the conveyor in the packaging area of the fruit packing line, the original work in this area is adding the fruit in the carton box. So you can assign one person in preparing the carton box. The second person will move the filled boxes. Third-person will seal the boxes. This way, work-lines can be arranged. By preparing packaging lines this way, will create a series of tasks. 1) Manpower Cost Saving In this way, every massive work breaks into small activities. Due to this, you get to know whether you need a person or not. If any person is lagging in the task, you need to rethink whether the job is complicated and time-consuming or it is not done correctly. Conveyor installation reduces and optimizes the real needed workforce for your work. If an activity in the series is getting done faster, you can reduce the number of persons there. Or you can ask one person to feed to two lines. If a task is becoming the bottleneck, either you can increase the workforce at the job or reduce the speed of the whole line. You can define the optimum workforce for your need. If there is batch production, optimum quantity can be determined, and production planning can be implemented. The reduced manpower saves the supervision cost and record-keeping costs tremendously. It will help in the utilization of these resources at some other needful place. 2) Faster speeds A person in the series is required to do a task repetitively. This results in faster speeds as over the time the persons get the expertise in doing that task faster. Everyone in the production series is comfortable to work with the already defined task. It results in better coordination, teamwork, and increased throughput at consistent quality. 3) Ergonomical Working, Mistakes & Accidents Ergonomical working ensures that the person has a comfortable operation. Due to this, the person can work for a longer time without having short brakes. As the person does the same task repeatedly, fewer mistakes are prone to happen. Less injuries and accidents at the workplace result in cost-saving as well as confidence in the workforce. 4) Save on Training Cost & use Semi-Skilled Manpower Training Costs are huge and incur a considerable portion of the company budget. Every time a new person joins a lot of time invested in providing training. In a conveyor production series, Since the activity breaks broken down into smaller tasks, it is effortless to train the new person faster for the specific job. You can employ a less-skilled workforce. Skilled workforce has higher wages, whereas a less-skilled workforce is easy to train, easy to engage, and easy to payments. 5) Fixed Protocols It is a challenge to fix up the production protocols. When there is a conveyor automation system, it is easy to implement fixed protocols for everything that is done. 6) Achieve Production Targets with the Right Quality Consistent product quality is only possible with quality awareness in your production team. Conveyor Automation Systems helps you and your team to achieve your production targets as well as quality benchmarks. Quality is an outcome of relentless efforts and constant awareness. Maintaining quality awareness in the team is essential. Ergonomic working, fewer mistakes, and fewer accidents increase workforce confidence resulting in quality awareness. 7) Utilize Shopfloor Space effectively With conveyors at the production area, there is more utilization of the space. It is because with conveyors everything gets organized properly. 8)Maintain Hygiene Standards. It is easy to maintain all the standards required by various industries such as food manufacturing and pharmaceuticals. Since conveyors are easy to design for a clean and hygienic environment. 9)Avoid production damage Production damages are a huge cost to business. There are various reasons for production damages. But fixed protocols, expert skills of doing tasks comfortable working help avoid production damages. 10) Increased Brand Loyalty Creating a brand is always a challenge for small business owners. Social media & advertisements are not going to result in creating "a brand" unless you have consistent product quality. When your products reach to customer's hands, it should provide the same experience every time. It should offer the same feeling of brand purchase each time and every time. Product with inconsistent packing and quality will deteriorate this experience and destroy the customer expectations. A conveyor automation system helps you to increase customer brand loyalty. Calculate ROI - Return on Investment of your new conveyor system with our ROI - calculator. 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  • 5 ways to adjust conveyor belt tension and tracking of belt

    Belt Tracking is often an issue faced by conveyor manufacturers and users. Maintenance people are called frequently for belt tracking problems in production areas. Below are the steps by which should be followed while tracking the belt With the advancement in technology, there are other ways to avoid and minimize the belt tracking issues. It can be avoided by following ways Coating of the Drive Roller Crowning of the Drive Roller knurling of the Drive Rollers Centre Guide for the belts. Below you shall find the procedure to track the belt. One should understand the science behind belt untracking. Conveyor belt is cut square ( rectangle ) while joining. When the belt is trying to come to its origin, i.e. squareness it leaves its position and it gets out of the track. The elements of the belt conveyors need properly at 90degree to each other such as the support frame, the drive & driven rollers, support rollers. When we are adjusting the belt tension, we are only trying to maintain the squareness of the belt. One should follow each step carefully with the technical understanding of the same. You should provide sufficient time for the belt to take its position, after each adjustment. Do make small changes, allow the belt to move, observe the position and decide the next action. Steps to Track your Conveyor Belt and adjust tension Check runout or concentricity of the drive/driven roller Runout or concentricity of the drive/driven rollers is the most known cause of belt getting untrack. Check the drive & Driven Rollers position if it is exactly at the right angle to the belt. Basically, if you join the centre lines a perfect square should be formed. Conveyor support structure may be welded or aluminium profile welded, in any case, it is necessary that it forms a perfect square. Check the Support Rollers are exactly at the right angle to the belt top.  The support rollers may force to change the position. Check if any foreign material is stuck below the belt e.g. some carton box cut pieces, metal debris, electrical wires, screws or Nuts. Check if the belt properly cut... a perfect Square Cut. Do share your likes and comments on this post to enable us to improve.

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  • Conveyor Roller Manufacturer | We Move Businesses Fast - econveyors

    Standard Conveyors & Rollers for Factory Automation !!! Conveyor Roller Manufacturer Conveyor Roller Manufacturers and Suppliers in Pune, India About Excel Conveyors Excel Conveyors, Established in 2016, is a rapidly growing organization, focused on customer satisfaction. Conveyor Roller Manufacturer in Pune, India. We manufacture gravity Rollers Conveyors as well as Conveyors. Our products are used all over industry segments across the globe. We handle a range of products from lightweight such as labels to heavy pallets of 2 tons. Some examples include Carton boxes, HDPE Bags, Pouches, machined components, Plastic crates, Milk Crates, Component Crates, Totes, Plastic and Metallic Drums, Wooden Pallets, Plastic Pallets, Fabricated Pallets, and lot many others. ​ Standard Design Concepts, results in faster turnaround of the orders assuring Quality, Consistency, and maintenance-free working for our customers. ​ We help customers to MOVE their Business FASTER. ​ ​ We help manufacturers who are struggling to achieve the already shrinking profits. We do this by reducing unnecessary product movements by using simple & easy to maintain conveyors. These reduce workforce costs & dependency, improve productivity, and improved product quality. ​ We understand customers' requirements by factory visit & witnessing their production, storage, warehouse, or logistics area. Factory visit results in getting minute details, which help provide the right type of conveyor to you. ​ We do provide after-sales service for all the products we supply. Many times customers are not aware of maintaining the product, or they do not have any expertise in that. We do help them by making annual maintenance contracts. Some of our Valued Customers All product names, logos, and brands are property of their respective owners

  • 8 Best Options of Gravity Rollers - Excel Conveyors - (Selection Complete info)

    Type 120 - Gravity Roller Or Idler Roller ​ Materials - Carbon Steel / Stainless Steel Bearing Housing - Polymide Molded Size options available as per chart. Load Capacity chart as per below Surface Treatments for Carbon steel - Zinc Plated, Chrome plated Surface Treatment for SS - Mirror Polished Coatings - PU Coated, PVC Sleeve Standard Sizes available in Type120 Gravity Rollers Load Capacity The load capacity of conveyor Rollers is as mentioned below. The column headings of the table are lengths in mm. The row headings are roller diameters. It can be seen that the roller capacities of the rollers are in Kgs. The "x" marked shows that, lengths are not recomended that diameter. Want to understand more about load capacity ... read here What is the load-carrying capacity of conveyor rollers? ​ The designers and users of gravity conveyors need to understand that the load-carrying capacity of rollers is distributive and not concentric. It means that the capacity of the roller is not pointed load capacity. Also, the load capacities are indicative because there are a lot of other factors that come into the picture such as the construction of the conveyor. ​ Load-carrying capacity is inversely proportional to the length of the rollers. As the length of the roller increases, the roller capacity decreases. Accordingly, high-width products need more diameter. 5 types of surface Treatments Or Coatings are available for conveyor rollers Different types of roller coatings are available to protect the rollers from corrosion. ​ Below coatings are available for Carbon Steel or MS Rollers. Zinc Plating Chrome Plating PU Coating PVC Sleeve ​ Zinc Plating is the most used roller coating because it is the fastest and economical process. ​ Chrome plating is an expensive and time-consuming process. ​ Powder Coating is also a process that is suitable for gravity rollers. ​ Polyurethane or PU Coating avoids metal to metal friction. If you are carrying a metallic machined component on a metal roller, the probability of component damage is very high. PU coating prevents this. PU coating protects the roller from corrosion, weathering, and abrasion. ​ PVC Sleeve is a low-cost alternative to PU coating. PVC sleeves of 1mm or 2mm thickness are applied on the rollers to avoid corrosion and abrasion. ​ How Gravity Rollers are mounted in the frame? There are various options for mounting the rollers ​ Spring-loaded Shaft - The shaft is spring-loaded. While mounting the roller, the shaft is to be pressed and released in the mounting hole. Designers should take note while the design of the roller conveyor that sufficient free distance should be kept between the frames. Lack of the extra distance between the roller mounting frames will make the roller assembly difficult. ​ Female Tap - The shaft has a female tap in the shaft. and is bolted on the roller mounting frame. When a large number of rollers are to be installed it is very time-consuming work. Pneumatic or electric nut runners are useful in such cases. ​ Female Tap + Across Flat - Across flat is used most of the time to apply the spanner. As mentioned above, it is laborious work. ​ Across Flat - The roller shaft has across flat and it is placed in the slot of the roller mounting frame. An "L" frame is used to hold the rollers in place in the frame. This method gives the fastest result. ​ ​ A conveyor manufacturer has a preset mindset and accordingly the roller mounting option is selected. Across flat option is for applying spanner to the shaft. It is easier to bolt when you can hold the shaft with a spanner. The spanner slot is also important during maintenance. Sometimes due to oil & dirt, the bolt does not open easily. You need to hold the shaft. Across flat is important in such cases. ​ ​ What are Gravity Roller Conveyor Design Calculations? ​ Designers make calculations to ensure that the rollers are suitable for the product given. The product properties should be studied carefully. Before you start the design you should have complete information about the product to be handled and what is the conveyor expected to do. ​ The shape of the product. The base of the product should be even at the bottom. Protrusions and projects at the bottom will make the bottom surface uneven. The even surface products are suitable to run on roller conveyors. A refrigerator is not even at the bottom. It has got leveling pads at the bottom. The leveling pads will enter the gap between rollers. So it is not the right product to run on roller conveyors. ​​ ​ Weight of the product. The product should have evenly distributed weight in it. It might happen sometimes that the product may have unevenly distributed weight inside it. It is called the eccentric weight. In such cases the product behavior is different. ​ Imagine a box that is half full of soap bars as shown in the image below. In such a case, the center of gravity of the box may change during the travel of the box on the roller conveyor. This is because the box portion ( with weight) will try to enter the gap between the rollers ( since weight is more there). It will result in the shifting and falling of soap bars into the empty space. ​ To avoid this, a smaller roller pitch is required, so the box may not enter the gap between rollers. ​ ​ ​ ​ ​ Limitation of gravity rollers & conveyors. ​ It is challenging to handle higher weights on gravity conveyors. Higher loads get higher speeds with little inclination, which may result in accidental damages at the working place. Proper safety arrangements and speed control rollers or brake rollers reduce unexpected occurrences drastically. Safety arrangements such as stoppers at unloading ends are a must. Speed control or brake rollers reduce the speed of the rollers. Installation of the speed control rollers is well before the unloading end so that there is sufficient time for the product to stop. There are two types of speed control rollers. Internal speed control rollers, which are inside the roller. Outer speed control roller installation is between 2 rollers. Speed Control Rollers are a must for heavy-duty pallet roller conveyors since they work like gravity roller conveyor brakes. Similar to higher weights, it is challenging to carry lighter loads . It is because the lighter weights do not slide easily on the rollers, as there is no or very little gravitational force generated. In such cases, ultra-free rollers are required. Apart from this, a higher inclination is needed to move the product. ​ Uncontrolled speeds - The speeds may be slow or fast. You cannot stop the product intermittently and then release it. It is difficult to pass the product at the same speed along full gravity conveyor length. ​ Length Limitations - The gravity conveyor requires a slope to enable the product to slide from top height to lower height. Due to this, for lower product weights and higher inclinations, longer lengths are not suitable. In spite of all the limitations, gravity roller conveyors are the most widely used conveyors all over the world. ​ Easy to Use Easy to maintain User friendly No Power Required. Easy to move No Training is required. Easy for Installation Low Cost ​ Gravity Roller Conveyors are easy to use. There is no pre-knowledge about the conveyors required. Any layman can use the gravity conveyor with the same ease and effort as others. The operators are safe while working with Gravity roller conveyors. There are no safety hazards working with light-duty gravity roller conveyors. Heavy-duty gravity roller conveyors require safety measures but they are very easy to implement. ​ Gravity Conveyors require no external power. They are Cost-Effective & Budget-friendly conveyors that provide quick results. ​ ​ Which are the industries where gravity rollers are used? ​ It is difficult to find an industry that does not use gravity conveyors. They are used in all industries across the globe except in some industries. Every industry small or big tries to utilize the free power to make the most of it. Gravity Roller Conveyors are the first choice of factory owners. Automotive & Allied Industries Chemical Food & Bakery Milk & Dairy Pharmaceuticals Electronics FMCG Warehouse & Storage E-Commerce ​ ​ Mail us Your Requirement

  • Best Manufacturer of Flat Belt Conveyors in Pune | Excel Conveyors

    What are Flat Belt Conveyor s? Excel Conveyors manufactures various types of flat belt conveyors. Flat Belt Conveyors carry carton boxes, plastic crates, totes, milk crates, bags, sacks, industrial components, and many more. ​ Flat belt conveyors have evolved over the years, and there has been a lot of advancement and options available as per application. There is a whole lot variety of belt conveyors depending on the application. ​ Features of Flat Belt Conveyors ​ Rigid & Sturdy Construction Welded & Bolted Structure Centre Guided Belt for minimum tracking Easy to maintenance Belt widths starting from 30mm Food Grade, Pharma options available. Read below to know applications of flat belt conveyors How do Flat Belt Conveyors work? Flat Belt Conveyors work by friction between the roller and the belt. The drive end roller has a motor to drive it. It can be done by directly mounting the geared motor to the roller or by giving indirect speed with a chain or timing belt. It is called Drive End. The other end is called Driven end or Tension end. When the belt has appropriate tension, it starts rotating by friction between the roller and belt. If there is no tension to the belt, i.e., the belt is loose, and it will not function. The belt has no reason to run at the center. The belt may go on any side of the conveyor while running. The belt will run in one position when the belt tracking is proper. How is conveyor belt tracking done? Please read here. What are types Or Applications of Flat Belt Conveyors? Depending on the application, there are different types of belt conveyors as ​ ​ Inclined Flat Belt Conveyor ​ The inclination of the conveyor should not go beyond 25-30degrees. The preference also depends on the product dimensions, especially the height. Excel Conveyors generally keep the angle of inclination at 25degree. You can watch a video of inclined belt conveyors here manufactured by Excel Conveyors. Inclined flat belt conveyors have use for various purposes like floor to floor handling, truck loading conveyor, and many other purposes. Inclined flat belt conveyors convey various articles such as carton boxes, plastic crates, totes, bags, components. ​ Printing Conveyor Flat belt conveyors for printing application, it is called printing conveyor. The printer on the conveyor can print various information such as the date of mfg, expiry date, plant number. Printing conveyors can print on different types of articles such as plastic bottles, carton boxes, food pouches, pharmaceuticals bottles, tablets A typical printing conveyor has a printing head on the top, a side guide for adjustment of the article on the belt, and CPU below the belt. A variable frequency drive to regulate the speed of the conveyor is a must for such conveyors to match belt speed with printing speed. Knife Edge Belt Conveyor ​ When the product dimensions are tiny, the product may fall or stuck in the gap between the conveyors at transfers. ​ The drive or driven end rollers create the gap between conveyors. Due to which tiny products may get stuck in the difference. Knife-edge conveyors have application in such cases. As the name suggests, the knife-edge conveyors have very smaller diameters at the conveyor ends to create a knife-like portion. Due to which product transfer is smooth between conveyors. The use of a single or both low side diameter is optional and depends on the application. There are particular types of conveyor belts to be used based on such claims. The conveyor manufacturer should discuss the belt application with the manufacturer in detail to select the right belt. The selected belt should be suitable for knife-edge application Food Grade Belt Conveyor It is nothing but a belt conveyor designed for food-grade applications.​ The belt is suitable for food grade and ideal for use. The structure may or may not be stainless steel. The design of the conveyors should be according to the standard of HACCP or ISO 22000. PVC Belt Conveyor It is a usual conveyor with the material of the belt PVC.​ There are a lot of other materials available, depending on the application. While selecting the belt, the conveyor designers should share all the possible details with the belt manufacturer for screening. The application details, speed conveyor, component weight construction, roller diameters, end industry of installation. Cleated & Side Wall Belt Conveyor These are the accessories that are available with the belt. ​ Inclined conveyors generally use Cleats & sidewalls. Cleats and Sidewalls are ultrasonically welded to the belt. Straight flat belt conveyors also use cleats to locate the product in applications such as pick & place. The designers should take care of the mounting position of the support rollers of the return path for cleated belts carefully. Either cleated belt or either walled side belt or with both the options belts are available. Checkweighers Most of the time, check weighers have flat belt conveyors. The design of the conveyor is very different from typical belt conveyors. Checkweighers measure the weight of the component without stopping the conveyor. Typically after keeping pressure on the weight balance, it needs to be stable to come the reading. Generally, check weighers are installed at the End of the packaging Line to ensure the product weight is in the given range. Since the production speeds are high, it is difficult to ensure the pressure manually. Checkweighers does this at a very high rate. Checkweighers generally have pneumatic pushers to reject the products which are out of the range. Checkweighers have been an essential part of a production and packing line due to stringent norms of the Government. Warehouse Conveyors Warehouse conveyors can be of any type, such as a belt, rollers, modular belt inclined. Bar Codes, Bar Code Scanners, RFIDs, RFID Scanners, Forklifts, ASRS, Warehouse Management Softwares are also required to manage the warehouse operations efficiently. Sorting Conveyors Sorting Conveyors are in use for applications such as incoming fruit material sorting to parcel sorting. Sorting conveyors has been used in various industries like food, pharma, parcel sorting, e-commerce. Weighing Conveyors A weighing conveyor is a static weight balance with a conveyor. For low production speeds, check weighers are not economical, and so static weighing conveyors are a cheap option. Packing Belt Conveyor Generally, companies use packing conveyors to pack products in carton boxes or a container with multiple items. Operators create a packing line, with a series of operations or tasks. Such as cake manufacture may provide a spoon, a coupon voucher for next time purchase, and cake, which uses a packing conveyor line. Packing Conveyors have platforms on both sides of the conveyor where operators are working. Carton Box Conveyors When belt conveyors are used to carrying carton boxes, they are called carton box conveyors. ​ Crate Conveyors Belt conveyors carrying or conveying plastic crates are crate conveyors. Metal Detector Conveyors Belt Conveyors with metal detectors detect metal contamination in various materials such as food, chemicals. Metal detectors have some unique designs. Food & pharma companies use metal detector conveyors or types of equipment to check metal contamination. A typical metal detector conveyor has a metal detecting device and a belt conveyor running through it. The range of metal detecting devices is an important selection criterion while buying a metal detector conveyor. Telescopic Conveyors Truck or container loading and unloading use telescopic conveyors. Telescopic conveyors have a fixed portion length, and the rest is adjustable. They have multiple features such as up-down height adjustment, horn/siren system, safety features, fixed or movable. Belt Over Roller Conveyors Belt over roller conveyor is just another type of belt conveyor. ​ Generally, belt conveyors have sheets as support plates. If the product is heavy, it increases friction between belt and sheet due to which motor power increases. Gravity rollers are added below the belt conveyor so that due to rolling contact, less motor power is required. Generally, bag stitching machines have a belt over roller conveyor at the bottom. Bag conveyors also have rollers below the belt. Truck Loading & Unloading Conveyors Truck Loading Conveyors have a lot of variety. ​ Truck loading conveyors have height adjustment features. Height adjustment can be made using hydraulic, pneumatic, or motorized. Most of the time, height adjustment is made using hydraulic, which is easy to use and standalone. Mini Belt Conveyors Mini Belt Conveyors are very small in widths of around 30mm to 120mm width.​ These are generally used for tiny spaces and varied industries. Please check here for the video of the mini belt conveyor made by Excel Conveyors. ​ Mail us Your Requirement

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