Product Description
| MYC Roller Introduction | ||
| * Roller is an important part of the belt conveyor. There are many types of rollers such as carrier roller, impact roller, RDRT roller, return roller and so on. The function of roller is to support the belt, reduce the running resistance of the belt and make the verticality of the belt not exceed a certain limit to ensure the smooth running of the belt. | ||
| * Roller accounts for 35% of the total cost of a belt conveyor system and generates more than 70% resistance, so the quality of roller is particularly important. | ||
| * CZPT roller adopts self-developed double labyrinth seal structure, which is better than traditional seal structure in waterproof and dustproof effect. Roller pipe adopts high-frequency welding pipe special for rollers, shaft adopts cold drawn bright shaft special for rollers, and bearing housing is made by stamping, drawing and welding with mixed gas. After the roller is welded, both ends are chamfered and polished, and then polish and remove the rust of the pipe surface. The roller surface adopts outdoor powder coating, heating and curing. The roller adopts a double-head pressing machine to press the bearing and the seal in 3 times, so as not to damage the seal and protect the bearing. The shaft end is subjected to the final anti-rust treatment, and finally put into the export-specific crates. | ||
| * The CZPT series of rollers have a wide range of products, including steel rollers, impact rollers, RDRT rollers, rubber-coated rollers, self-aligning rollers, oil injection rollers, galvanized rollers and other types. The size specifications can be customized according to the customer’s drawings, also can be produced according to the standards of various countries. For detailed specifications, you can ask us for a product manual. | ||
| * At present, CZPT has the most advanced fully automatic production line for rollers in the industry. The entire production process uses robots instead of manual processing and production. Currently we have 2 automatic production lines and 2 semi-automatic production lines, which can achieve a daily output of 2000 rollers. For roller frames, we use a fully automatic laser cutting machine to cut the material, and use a CNC bending machine to produce the parts of the frame. Welding adopts a robot. Surface treatment is shot blasting and hot-galvanizing in accordance with international standards. | ||
| MYC Roller Specifications | ||
| No. | Item | Description |
| 1 | Brand | MYC |
| 2 | Roller Diameter | 60/63.5/76/89/102/108/114/127/133/140/152/159/178/194/219mm |
| 3 | Shell Thickness | 3/3.5/4/4.5/5/5.5/6mm |
| 4 | Face Length | 100mm-4000mm |
| 5 | Shaft Diameter | 20/25/30/35/40/45/50mm |
| 6 | Bearing | 6204/6205/6305/6206/6306/6307/6308/6309/6310 |
| 7 | Bearing Type | ZZ C3 / ZRS C3 |
| 8 | Bearing Brand | LYC/SKF/FAG/NSK |
| 9 | Seal | MY/TK/TKII/TKIII/TF/AR/RG/RD |
| 10 | Pipe Material | Carbon Steel Q235 |
| 11 | Shaft Material | Cold Drawing Round Steel |
| 12 | Surface Treatment | Powder Coating/Galvanizing |
| 13 | Surface Color | Customized |
Production Process
| MYC Production Equipment and Capacity | ||
| * We have an automated CNC production line designed and manufactured by ourselves. The production line contains the following unique core patented equipment: Fully automatic extrusion equipment Fully automatic injection molding equipment Two-way CNC plastic roll lathe Two-way milling machine with flat slot CNC Pipe cutting machine for plastic pipe |
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| * Our automatic production single line processes 50,000 rollers per month and we also have the ability to expand production capacity. | ||
| * Our CNC automatic processing equipment can fully guarantee the processing accuracy and quality of the products. | ||
| MYC Roller Advantages | ||
| * Choose the raw material with the very best quality from the market. | ||
| * Use the most advanced automation equipment for production. | ||
| * Long-life span, high quality and energy-saving products. | ||
| * Over 15 years experience of design, innovation, maintainence and production. | ||
| * Certified by ISO 9001, ISO 14001, ISO 45001, SGS, BV and other authorized certifications. | ||
| * Good reputation from the customers all over the world with longtime cooperation. |
| Comparison of Properties of Rollers of Different Materials | ||||
| No. | Item | HDPE Roller | Steel Roller | Ceramic Roller |
| 1 | Chemical resistance (strong acid, strong alkali) | Yes | No | Yes |
| 2 | Toughness (subject to greater external force) | Unbreakable | Unbreakable | Fragile |
| 3 | Bearing Tightness | Superior | General | Poor |
| 4 | Surface Adhesion | Difficult | Easy | Easy |
| 5 | Coefficient of Sliding Friction (to belt) | Small 0.10-0.15 | Big 0.68-0.80 | Big 0.68-0.80 |
| 6 | Abrasive Resistance | Good | General | Good |
| 7 | Wear on the belt | Wearproof | Easy to wear | Easy to wear |
| 8 | Running Power Consumption (take steel roller as 1) | 0.85 | 1 | 1.05 |
| 9 | Noise and Vibration | Low | High | Higher |
| 10 | Weight | 5 | 10 | 15 |
| 11 | Installation Maintenance | Easy to install and maintenance-free | Heavy installation and maintenance workload | Heavy installation and maintenance workload |
| 12 | Water Absorption | Small | Big | Big |
| 13 | Service Life | 3-5 years | 1-2 years | 1-2 years |
Products Overview
Roller is divided into carrier roller, impact roller, return roller, RDRT roller, CZPT roller, rubber lagged roller and so on.
As per the material used, there’re steel roller and plastic roller. Normally plastic roller is divided into HDPE roller, UMHWPE roller and nylon roller.
With good quality and high output, CZPT roller is exported to countries all around the world.
Belt Conveyor System Overview
| Belt Conveyor Introduction | ||
| * The belt conveyor mainly consists of frame, roller, belt, pulley, tensioner and transmission part. Frame is made of steel. The core of the belt is made of cotton or nylon. | ||
| *Belt conveyor is widely used in industries of mine, metallurgy, coal, power plant, cement and so on to convey loose materials and finished products. | ||
| * According to the requirement of conveying process, it can be used as a stand-alone machine or used with other conveying equipments. | ||
| Features and Advantages | ||
| * Made of seamless link-belt, effectively improve the transport job stability. | ||
| * Big transportation capacity, simple structure. | ||
| * Easy maintenance, standardization of each part. | ||
| * Big selection range, can be matched and assembled as per actual condition. |
| Technical Specification | |||||||
| Capacity (m3/h) |
Speed (m/s) | Power (kw) | |||||
| BW (mm) |
1.0 | 1.25 | 1.6 | 2.0 | ≤12m | 12-20m | 20-30m |
| 500 | 40 | 50 | 60 | 70 | 3-4 | 5.5-7.5 | 7.5-11 |
| 650 | 75 | 90 | 110 | 130 | 4 | 5.5-7.5 | 7.5-11 |
| 800 | 120 | 150 | 180 | 220 | 4-5.5 | 5.5-11 | 11-15 |
| 1000 | 180 | 220 | 280 | 350 | 5.5-7.5 | 7.5-11 | 11-18.5 |
| 1200 | 250 | 300 | 360 | 430 | 7.5-11 | 11-15 | 15-22 |
| 1400 | 300 | 380 | 480 | 600 | 11-15 | 15-22 | 22-30 |
Company Overview
ZheJiang CZPT Conveyor Co., Ltd, located in the Eurasian bridgehead – HangZhou City Juxian Economic Development Zone, the company occupies more than 300 acres with a production workshop of 13 million square meters. Our company is close to HangZhou Port, HangZhou Port, HangZhou Airport and HangZhou Airport with high-speed around and convenient transportation, providing convenient services for customers with superior geographical advantages.
Established in 2008, our company is a scientific and technological innovation-oriented enterprise with more than 10 R & D staff and more than 30 technical staff. Our company has independently studied and obtained more than 100 invention patents so far.
Our company is committed to long distance, large capacity, space turning belt conveyor research and development and manufacturing, the roller, bracket, pulley and steel structure we produced have won praise of domestic and foreign customers. Our current customers are throughout Australia, Canada, the United States, Turkey, Saudi Arabia, Chile, Japan, South Korea, the Netherlands, France, Southeast Asia and other countries and regions.
Our company attaches great importance to quality control, with high reliability for the design principle, from the source of the product to control the quality, uses advanced technology and equipment. Our company has obtained the “ISO9001: 2008 quality system certification”, “LEVEL III steel structure engineering and mechanical and electrical equipment installation”, “ISO14001: 2015 environmental system certification”, “ISO45001: 2018 CZPT system certification” and ” Production License of dangerous goods packaging and containers”.
Adhere to the production of first-class products, provide first-class service, adhere to first-class management and create first-class enterprise, our company sincerely looks forward to working with all customers for sincere cooperation and a better future!
Types of Screw Shafts
Screw shafts come in various types and sizes. These types include fully threaded, Lead, and Acme screws. Let’s explore these types in more detail. What type of screw shaft do you need? Which 1 is the best choice for your project? Here are some tips to choose the right screw:
Machined screw shaft
The screw shaft is a basic piece of machinery, but it can be further customized depending on the needs of the customer. Its features include high-precision threads and ridges. Machined screw shafts are generally manufactured using high-precision CNC machines or lathes. The types of screw shafts available vary in shape, size, and material. Different materials are suitable for different applications. This article will provide you with some examples of different types of screw shafts.
Ball screws are used for a variety of applications, including mounting machines, liquid crystal devices, measuring devices, and food and medical equipment. Various shapes are available, including miniature ball screws and nut brackets. They are also available without keyway. These components form a high-accuracy feed mechanism. Machined screw shafts are also available with various types of threaded ends for ease of assembly. The screw shaft is an integral part of linear motion systems.
When you need a machined screw shaft, you need to know the size of the threads. For smaller machine screws, you will need a mating part. For smaller screw sizes, the numbers will be denominated as industry Numeric Sizes. These denominations are not metric, but rather in mm, and they may not have a threads-per-inch designation. Similarly, larger machine screws will usually have threads that have a higher pitch than those with a lower pitch.
Another important feature of machine screws is that they have a thread on the entire shaft, unlike their normal counterparts. These machine screws have finer threads and are intended to be screwed into existing tapped holes using a nut. This means that these screws are generally stronger than other fasteners. They are usually used to hold together electronic components, industrial equipment, and engines. In addition to this, machine screws are usually made of a variety of materials.
Acme screw
An Acme screw is the most common type of threaded shaft available. It is available in a variety of materials including stainless steel and carbon steel. In many applications, it is used for large plates in crushing processes. ACME screws are self-locking and are ideal for applications requiring high clamping force and low friction. They also feature a variety of standard thread forms, including knurling and rolled worms.
Acme screws are available in a wide range of sizes, from 1/8″ to 6″. The diameter is measured from the outside of the screw to the bottom of the thread. The pitch is equal to the lead in a single start screw. The lead is equal to the pitch plus the number of starts. A screw of either type has a standard pitch and a lead. Acme screws are manufactured to be accurate and durable. They are also widely available in a wide range of materials and can be customized to fit your needs.
Another type of Acme screw is the ball screw. These have no back drive and are widely used in many applications. Aside from being lightweight, they are also able to move at faster speeds. A ball screw is similar to an Acme screw, but has a different shape. A ball screw is usually longer than an Acme screw. The ball screw is used for applications that require high linear speeds. An Acme screw is a common choice for many industries.
There are many factors that affect the speed and resolution of linear motion systems. For example, the nut position and the distance the screw travels can all affect the resolution. The total length of travel, the speed, and the duty cycle are all important. The lead size will affect the maximum linear speed and force output. If the screw is long, the greater the lead size, the higher the resolution. If the lead length is short, this may not be the most efficient option.
Lead screw
A lead screw is a threaded mechanical device. A lead screw consists of a cylindrical shaft, which includes a shallow thread portion and a tightly wound spring wire. This spring wire forms smooth, hard-spaced thread convolutions and provides wear-resistant engagement with the nut member. The wire’s leading and trailing ends are anchored to the shaft by means appropriate to the shaft’s composition. The screw is preferably made of stainless steel.
When selecting a lead screw, 1 should first determine its critical speed. The critical speed is the maximum rotations per minute based on the natural frequency of the screw. Excessive backlash will damage the lead screw. The maximum number of revolutions per minute depends on the screw’s minor diameter, length, assembly alignment, and end fixity. Ideally, the critical speed is 80% of its evaluated critical speed. A critical speed is not exceeded because excessive backlash would damage the lead screw and may be detrimental to the screw’s performance.
The PV curve defines the safe operating limits of a lead screw. This relationship describes the inverse relationship between contact surface pressure and sliding velocity. As the PV value increases, a lower rotation speed is required for heavier axial loads. Moreover, PV is affected by material and lubrication conditions. Besides, end fixity, which refers to the way the lead screw is supported, also affects its critical speed. Fixed-fixed and free end fixity are both possible.
Lead screws are widely used in industries and everyday appliances. In fact, they are used in robotics, lifting equipment, and industrial machinery. High-precision lead screws are widely used in the fields of engraving, fluid handling, data storage, and rapid prototyping. Moreover, they are also used in 3D printing and rapid prototyping. Lastly, lead screws are used in a wide range of applications, from measuring to assembly.
Fully threaded screw
A fully threaded screw shaft can be found in many applications. Threading is an important feature of screw systems and components. Screws with threaded shafts are often used to fix pieces of machinery together. Having fully threaded screw shafts ensures that screws can be installed without removing the nut or shaft. There are 2 major types of screw threads: coarse and fine. When it comes to coarse threads, UTS is the most common type, followed by BSP.
In the 1840s, a British engineer named Joseph Whitworth created a design that was widely used for screw threads. This design later became the British Standard Whitworth. This standard was used for screw threads in the United States during the 1840s and 1860s. But as screw threads evolved and international standards were established, this system remained largely unaltered. A new design proposed in 1864 by William Sellers improved upon Whitworth’s screw threads and simplified the pitch and surface finish.
Another reason for using fully threaded screws is their ability to reduce heat. When screw shafts are partially threaded, the bone grows up to the screw shaft and causes the cavity to be too narrow to remove it. Consequently, the screw is not capable of backing out. Therefore, fully threaded screws are the preferred choice for inter-fragmentary compression in children’s fractures. However, surgeons should know the potential complication when removing metalwork.
The full thread depth of a fully threaded screw is the distance at which a male thread can freely thread into the shaft. This dimension is typically 1 millimeter shy of the total depth of the drilled hole. This provides space for tap lead and chips. The full-thread depth also makes fully threaded screws ideal for axially-loaded connections. It is also suitable for retrofitting applications. For example, fully threaded screws are commonly used to connect 2 elements.
Ball screw
The basic static load rating of a ball screw is determined by the product of the maximum axial static load and the safety factor “s0”. This factor is determined by past experience in similar applications and should be selected according to the design requirements of the application. The basic static load rating is a good guideline for selecting a ball screw. There are several advantages to using a ball screw for a particular application. The following are some of the most common factors to consider when selecting a ball screw.
The critical speed limit of a ball screw is dependent on several factors. First of all, the critical speed depends on the mass, length and diameter of the shaft. Second, the deflection of the shaft and the type of end bearings determine the critical speed. Finally, the unsupported length is determined by the distance between the ball nut and end screw, which is also the distance between bearings. Generally, a ball screw with a diameter greater than 1.2 mm has a critical speed limit of 200 rpm.
The first step in manufacturing a high-quality ball screw is the choice of the right steel. While the steel used for manufacturing a ball screw has many advantages, its inherent quality is often compromised by microscopic inclusions. These microscopic inclusions may eventually lead to crack propagation, surface fatigue, and other problems. Fortunately, the technology used in steel production has advanced, making it possible to reduce the inclusion size to a minimum. However, higher-quality steels can be expensive. The best material for a ball screw is vacuum-degassed pure alloy steel.
The lead of a ball screw shaft is also an important factor to consider. The lead is the linear distance between the ball and the screw shaft. The lead can increase the amount of space between the balls and the screws. In turn, the lead increases the speed of a screw. If the lead of a ball screw is increased, it may increase its accuracy. If not, the lead of a ball screw can be improved through preloading, lubrication, and better mounting accuracy.
