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Carrying Idler Roller
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PRODUCT INTRODUCTION
Carrying idler roller is a type of conveyor idler that is used to support and guide the conveyor belt along its path. Carrying idlers for belt conveyor are typically flat in shape and are designed to be mounted horizontally on the conveyor frame. Carrying Idlers with Frame are commonly used in applications where the conveyor belt is relatively flat and straight, such as in mining, quarrying, and material handling operations. Self-aligning carrying idlers are available in a variety of sizes and configurations to suit different conveyor belt widths and load capacities.
WHERE IS IT USED
Carrying idler roller is mainly used in the following many fields:
1. Mining industry
Carrying idlers for belt conveyor is used to transport coal in coal mine conveying system. After the coal is mined from underground, it is transported to the ground or other processing areas via conveyor belts. The upper flat roller set can provide stable support for the conveyor belt to ensure that the coal will not be spilled due to the swaying of the conveyor belt during transportation.
Carrying idlers for belt conveyor is used to convey the ore in the beneficiation plant of metal ores (e.g. iron ore, copper ore, etc.). After a series of processing procedures such as crushing, screening, etc., the ore needs to be transported to the next stage through the conveyor belt. The upper flat roller set can adapt to the weight and hardness of the ore, reduce the friction loss between the conveyor belt and the rollers, and extend the service life of the conveyor belt and the roller set.
2. Port Terminal
In bulk terminal, self-aligning carrying idlers are used for loading, unloading and conveying all kinds of bulk cargoes, such as grains, ores, coal and so on.
3. Power industry
In thermal power plants, flat carrier idlers are used to convey coal to the boiler. Coal is transported from the coal yard to the coal feeder of the boiler through the conveyor belt, and the upper flat roller set ensures the stability of the coal in the conveying process.
In some new energy power plants (e.g. biomass power plants), Carrying Idlers with Frame is used for conveying biomass raw materials, such as straw, wood chips and so on.
4. Construction industry
In building construction site, carrying idlers for belt conveyor is used to convey building materials, such as sand, cement, bricks, etc.
5. Chemical industry
Self-aligning carrying idlers plays an important role in the transportation of chemical raw materials and products. For example, in fertilizer plants, it is used to convey fertilizer granules. Fertilizer granules need to be conveyed in such a way as to avoid breakage and spilling of the granules. The upper flat roller set ensures that the fertilizer granules arrive intact at the packing house or storage warehouse under conveyor belt transportation by providing a smooth conveying surface. Meanwhile, in chemical production, many raw materials and products may be corrosive, the material of the upper flat roller set can be selected according to the specific chemical substances to resist corrosion and ensure its normal service life.
PRODUCT DESIGN

The structure of flat carrier idlers typically consists of a cylindrical roller, a bearing, a seal, and a support bracket.
The cylindrical roller is the main component of the idler and is usually made of high-quality steel. It has a smooth surface to reduce friction and wear on the conveyor belt. The roller is mounted on a shaft that is supported by the bearing.
The bearing is typically a deep groove ball bearing or a spherical roller bearing, depending on the load capacity and operating conditions of the conveyor system. It is designed to support the roller and allow it to rotate freely.
The seal is used to protect the bearing from dust, dirt, and other contaminants that can cause premature failure. It is usually made of rubber or plastic and is designed to provide a tight seal around the bearing.
The support bracket is used to attach the idler to the conveyor frame and provide additional support for the roller. It is typically made of steel and is designed to withstand the weight and forces of the conveyor system.
In addition to these components, carrying idler roller may also include features such as grease fittings for lubrication, adjustable brackets for belt tracking, and impact beds for absorbing shock and reducing belt damage.
THE CONVEYOR BELT HAS THE FOLLOWING DESIGN
1.Load - Bearing Capacity Principle
Flat carrier idlers must be designed to withstand the weight of the conveyor belt and the materials it carries. The load - bearing capacity is determined by factors such as the maximum expected load per unit length of the conveyor belt and the number of idlers in a given section.
2.Smooth Running Principle
The design should ensure that the idlers rotate smoothly to minimize friction and wear. This requires the use of high - quality bearings. The bearings are selected based on the rotational speed and load requirements of the idlers.
3.Belt Conformity Principle
Flat carrier idlers should conform well to the shape and movement of the conveyor belt. The diameter of the rollers is designed to provide the right amount of support to the belt without causing excessive deformation.
4.Durability and Maintenance - Ease Principle
The design should aim for durability to withstand the harsh operating conditions such as dust, moisture, and corrosive substances. The materials used for the idlers, including the roller shell, frame, and bearings, are selected with their resistance to corrosion and wear in mind.
TABLE OF TECHNICAL CHARACTERISTICS
| BELT WIDTH | MODEL | ROLLER | BEARING No. | A | E | H | H1 | H2 | P | Q | d | MASS (Kg) | ||||||
| MODEL | D | L | 30 | 35 | 45 | 30 | 35 | 45 | ||||||||||
| 500 | -343 | CR-89-204-200 | 89 | 200 | 204 | 740 | 800 | 220 | 135.5 | 286 | 300 | 328 | 170 | 130 | M12 | 15.2 | 15.6 | 16.3 |
| 650 | -358 | CR-89-204-250 | 250 | 204 | 890 | 950 | 235 | 135.5 | 311 | 329 | 364 | 170 | 130 | M12 | 17.4 | 17.5 | 18.1 | |
| -359 | CR-89-205-250 | 205 | 19.1 | 19.2 | 19.8 | |||||||||||||
| -377 | CR-108-204-250 | 108 | 204 | 265 | 146 | 330 | 346 | 381 | 19.9 | 20.2 | 20.9 | |||||||
| -378 | CR-108-205-250 | 205 | 21.6 | 21.9 | 22.7 | |||||||||||||
| -478 | CR-108-305-250 | 305 | 23.1 | 23.4 | 24.1 | |||||||||||||
| 800 | -373 | CR-89-204-315 | 89 | 315 | 204 | 1090 | 1150 | 245 | 135.5 | 350 | 366 | 410 | 170 | 130 | M12 | 22.6 | 22.6 | 23.2 |
| -374 | CR-89-205-315 | 205 | 24.4 | 24.4 | 25 | |||||||||||||
| -392 | CR-108-204-315 | 108 | 204 | 270 | 146 | 371 | 385 | 427 | 25.5 | 25.5 | 26.4 | |||||||
| -393 | CR-108-205-315 | 205 | 27.5 | 27.6 | 28.4 | |||||||||||||
| -493 | CR-108-305-315 | 305 | 29 | 29 | 29.8 | |||||||||||||
| 1000 | -413 | CR-108-205-380 | 108 | 380 | 205 | 1290 | 1350 | 300 | 159 | 417 | 437 | 487 | 220 | 170 | M16 | 39.8 | 39.8 | 42.4 |
| -513 | CR-108-305-380 | 305 | 41.2 | 41.3 | 43.9 | |||||||||||||
| -414 | CR-108-206-380 | 206 | 43.3 | 43.3 | 46 | |||||||||||||
| -514 | CR-108-306-380 | 306 | 44.5 | 44.5 | 47.2 | |||||||||||||
| -438 | CR-133-205-380 | 133 | 205 | 325 | 173.5 | 442 | 462 | 515 | 43.9 | 43.9 | 46.8 | |||||||
| -538 | CR-133-305-380 | 305 | 44.8 | 44.8 | 47.8 | |||||||||||||
| -439 | CR-133-206-380 | 206 | 46.9 | 46.9 | 49.9 | |||||||||||||
| -539 | CR-133-306-380 | 306 | 48.1 | 48.1 | 51.1 | |||||||||||||
| 1200 | -433 | CR-108-205-465 | 108 | 465 | 205 | 1540 | 1600 | 335 | 176 | 476 | 503 | 564 | 260 | 200 | M16 | 52.8 | 53 | 56.1 |
| -533 | CR-108-305-465 | 305 | 54.3 | 54.5 | 57.5 | |||||||||||||
| -434 | CR-108-206-465 | 206 | 56.8 | 57 | 60 | |||||||||||||
| -534 | CR-108-306-465 | 306 | 58 | 58.2 | 61.2 | |||||||||||||
| -458 | CR-133-205-465 | 133 | 205 | 360 | 190.5 | 501 | 528 | 592 | 57.6 | 57.7 | 60.9 | |||||||
| -558 | CR-133-305-465 | 305 | 58.6 | 58.6 | 61.9 | |||||||||||||
| -459 | CR-133-206-465 | 206 | 61.2 | 61.3 | 64.7 | |||||||||||||
| -559 | CR-133-306-465 | 306 | 62.4 | 62.5 | 65.9 | |||||||||||||
| -484 | CR-159-205-465 | 159 | 205 | 390 | 207.5 | 529 | 557 | 618 | 65 | 65.6 | 68.7 | |||||||
| -584 | CR-159-305-465 | 305 | 66 | 66.6 | 69.7 | |||||||||||||
| -485 | CR-159-206-465 | 206 | 68.6 | 69.1 | 72.2 | |||||||||||||
| -585 | CR-159-306-465 | 306 | 69.8 | 70.3 | 73.4 | |||||||||||||
| 1400 | -453 | CR-108-205-530 | 108 | 530 | 205 | 1740 | 1800 | 350 | 184 | 516 | 548 | 618 | 280 | 220 | M16 | 58.9 | 58.9 | 70.5 |
| -553 | CR-108-305-530 | 305 | 60.4 | 60.4 | 71.9 | |||||||||||||
| -454 | CR-108-206-530 | 206 | 63.3 | 63.3 | 74.8 | |||||||||||||
| -554 | CR-108-306-530 | 306 | 64.5 | 64.5 | 76 | |||||||||||||
| -478 | CR-133-205-530 | 133 | 205 | 380 | 198.5 | 541 | 573 | 646 | 64.2 | 64.2 | 75.8 | |||||||
| -578 | CR-133-305-530 | 305 | 65.1 | 65.1 | 76.8 | |||||||||||||
| -479 | CR-133-206-530 | 206 | 68.1 | 68.4 | 79.8 | |||||||||||||
| -579 | CR-133-306-530 | 306 | 69.3 | 69.6 | 81 | |||||||||||||
| -504 | CR-159-205-530 | 159 | 205 | 410 | 215.5 | 570 | 603 | 672 | 80.3 | 81 | 85.8 | |||||||
| -604 | CR-159-305-530 | 305 | 81.3 | 82 | 86.8 | |||||||||||||
| -505 | CR-159-206-530 | 206 | 84.2 | 84.8 | 89.7 | |||||||||||||
| -605 | CR-159-306-530 | 306 | 85.4 | 86 | 90.9 | |||||||||||||
FEATURES AND BENEFITS
1. Utilizing automatic welding robots for welding. Ensuring high stability, efficiency, accurate welding position and angle, as well as consistent welding quality and appearance.
2. Rollers automatic production line. A $2.8M investment in 2024 added a complete set of rollers automatic production line for extreme consistency and fast lead times.
3. Enhanced bearing seal. Revamped and enhanced standard idler seal for water-proof bearing protection.
4. The rollers are made of high-precision special steel pipes with minimal radial runout and good balance.
INSTALLATION AND COMMISSIONING FROM PROFESSIONALS
JUXIN also provides services for the installation and commissioning of conveyor equipment. Our team of experienced specialists will efficiently set up the operation of the conveyor line at your enterprise in a timely manner. We also offer installation supervision, where our specialist will visit your facility after equipment delivery to oversee the installation and launch process carried out by your personnel.

PRE-SALES:EQUIPMENT SELECTION
Assisting customers in selecting the most suitable belt conveyor for their specific needs and requirements. Additionally, we offer technical advice and guidance to facilitate informed decision-making on bulk material handling equipment. Furthermore, we can provide the following information:
• Customized solutions and design services
• Delivery lead time
• Equipment operation and maintenance
• Environmental and safety measures
• Integration with existing equipment

AFTER-SALES: 24/7 HOTLINE SUPPORT
We have established a hotline (+86 18622502901) to promptly address customer inquiries, feedback, and complaints. Our support is available 24 hours a day, seven days a week. Generally, our engineers will work remotely to resolve your issues.
- We provide training for customers on effective and safe operation and maintenance of the belt conveyor.
- We offer technical support and troubleshooting assistance to address any operational issues or concerns with the belt conveyor.
- We supply spare parts and components as needed, ensuring prompt delivery and compatibility with the specific belt conveyor model.
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