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Product Description

 

Product Description

The drum is the main component that transmits power. It is divided into 3 types according to their load-carrying capacity: light, medium and heavy.
Light: Bearing aperture 80-100mm, the shaft and hub are single-width plate welded cylinder structure connected by single key.
Medium: Bearing aperture 120-180mm, the shaft and hub are expansion sleeve connection
Heavy: Bearing aperture 200-220mm, the shaft and hub are expansion sleeve connection, and the drum body is cast-welded structure.

Conveyor pulley stays at 2 ends of belt machine. The pulley can be divided into 2 categories: Driving pulley and averting pulley, driving pulley is the main part for transmitting the power and there are 2 kinds of pulley sets: Smooth surface and rubber surface, and rubber surface can be classified into smooth rubber surface, herringbone rubber surface and CZPT rubber surface to meet different technical requirements. Averting pulley can be classified into smooth rubber surface and smooth steel surface.

Detailed Photos

Technical Parameters

Driving Pulley (rubber surface)

Belt Width 

Standard Diameter of Pulley 

500 mm

500mm

650 mm

500mm,630 mm

800 mm

500mm,630mm,800mm,1000mm,1250mm,1400 mm

1000 mm

630mm,800mm,1000mm,1250mm,1400 mm

1200 mm

630mm,800mm,1000mm,1250mm,1400 mm

1400 mm

630mm,800mm,1000mm,1250mm,1400 mm

1600 mm

630mm,800mm,1000mm,1250mm,1400 mm

1800 mm

630mm,800mm,1000mm,1250mm,1400 mm

2000 mm

800mm,1000mm,1250mm,1400 mm

2200 mm

1000mm,1250mm,1400 mm

2400 mm

1000mm,1250mm,1400 mm

Bend Pulley (smooth surface & rubber surface)

Belt Width 

Standard Diameter of Pulley (mm)

500 mm

250,315,400,500

650 mm

250,315,400,500,630 

800 mm

250,315,400,500,630,800,1000,1250

1000 mm

250,315,400,500,630,800,1000,1250,1400

1200 mm

250,315,400,500,630,800,1000,1250,1400

1400 mm

315,400,500,630,800,1000,1250,1400

1600 mm

400,500,630,800,1000,1250,1400

1800 mm

400,500,630,800,1000,1250,1400

2000 mm

500,630,800,1000,1250,1400

2200 mm

630,800,1000,1250,1400

2400 mm

800,1000,1250,1400

 Pulley Standard

Brand 

SPD 

Specification 

SPD-CP-0001

Certificate

ISO/BV/SGS

Standard

CEMA/JIS/DIN/Australia

Application

Coal mining industry, cement, steel, harbour etc.  

Place of Origin 

HangZhou City , ZheJiang  Province , China

Material Feature

Water, Wear, Dust resistance 

Supply capacity 

80pcs/month

Management system 

ISO 9001:2008,ISO 14001:2004,GB/T 28001-2001

Project Performance

Main Equipment & Facilitys
Customer Visit & Exhibition

 

Packaging & Shipping

Company Profile

HangZhou Port Shipbuilding & Machinery Industry Co., Ltd (RPIC) are a comprehensive group enterprise which is engaged in the design, manufacture, installation and maintenance of port bulk-handling equipment. Our company has the Third-level Qualification of Machinery & Electrical Equipment Installation Enterprise and First-Level Qualification of Equipment Maintenance Enterprise. Our company has already passed ISO9002: 2000, ISO14001 and OHSMS18001 system certification.

The business of our company covers the design, manufacture, installation and maintenance of steel structure projects, belt conveyor system projects, port auxiliary equipment, port handling equipment and their accessories. The main products of our company include traveling stackers, running mechanisms of portal cranes, belt conveyors, idler rollers, pulleys, grabs etc.

The products and services of HangZhou Port Machine Engineering Co., Ltd. Spread all over domestic and overseas port industry, electric power industry, metallurgy industry, energy industry, cement industry, food industry, paper industry, etc.
With professional technical teams, exquisite processing equipment, modern management systems and convenient transportation, our company adheres to the business philosophy of “integrity and innovation, working hard to manufacture high quality products and constructe excellent projects, providing customers with value-added services”.

The quality control is carried out throughout the whole production process. We pursue perfection in the design and production of each product. With advanced processing equipment, we are committed to providing superior quality products and services.

RPIC is a leading professional bulk material conveying system equipment supplier. The capacity of conveying equipment can reach 10, 000t/h.

RPIC is a professional equipment installation and maintenance service provider which has the First-level Qualification of the Equipment Maintenance Enterprise.

Our products are well sold to Europe, Australia, America, Asia and African.

We welcome all companies to contact us for business negotiation.

Our EPC Conveying System Project

our certification

FAQ

Q1:Can you send samples? A:Of course, we can provide customers with free samples but customer should pay the courier fee.
Q2:What product information do I need to provide? A:Please kindly provide the grade, width, thickness, surface treatment requirement  and quantities you need to purchase
Q3:What is your terms of payment ? A: 30% T/T in advance ,balance before shipment or 100% LC at sight.
Q4.Do you provide customer made Products service? A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q5:How long does your delivery time take? A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q6: How many countries you already exported to? A:We have exported to America, Canada, Brazil, Chile, Colombia, Thailand, Myanmar, Vietnam,  and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble
Q7:Can I go to your factory to visit? A:Of course, we welcome customers from all over the world to visit our factory
Q8:Does the product have quality inspection before loading? A:Of course, all our products are strictly tested for quality before packaging,  customers can appoint third parties to inspect the products before loading too
Q9:How to pack the products? A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during CZPT transportation
Q10:What is your working time? A:In general, our online service time is ZheJiang time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.

Material: Steel
Application: Chemical Industry, Grain Transportation, Mining Transport, Power Plant
Structure: Spring Plate Type Roller
Bearing Type: Double Sealed Bearing
Type: Impact Idler
Pulley Diameter: 250mm to 2400mm
Customization:
Available

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Customized Request

pulley

Pulley Type

There are several types of pulleys. These include fixed pulleys, load multipliers and movable pulleys. Below is a description of each pulley type. A load multiplier is a special type of pulley with multiple wheels for increased lifting capacity. It is used in a wide range of applications including power transmission and construction. Some common uses of pulleys are listed below.

moving pulley

Movable pulleys work by transferring the weight of a load to another object of the same mass. Since a live pulley is inherently frictionless and weightless, the force required to lift a load with it is the same as the weight of the load. This principle applies to tall buildings and residences. It is an excellent choice for lifting heavy objects such as furniture and washing machines.
A pulley is a mechanical device with a wheel that rotates on a shaft. The axle is attached to the wheel and is usually fixed. The movable pulley can be fixed or movable, both of which can change the direction of the force on the rope. Some pulleys can also change the magnitude and direction of the force. They are ideal for a variety of applications, from lifting heavy objects to transporting objects.
Another type of movable pulley works by transmitting force to another object. It has a free axis and the total force provided by the rope tension is balanced. Since the tension on the rope is constant in each segment, pulling one end of the rope will double the force on the shaft, resulting in two mechanical advantages. This mechanical advantage is the main reason why movable pulleys are so versatile.
Another form of moving pulley is called a KWL diagram. The KWL diagram summarizes the basic concepts of the drive wheel. KWL diagrams are an excellent way to assess a student’s understanding of the concepts discussed in the course. Word questions are a great way to check whether students understand concepts. When students answer the word questions correctly, the answer is yes!

Fixed wheel pulley

If you need to move heavy objects, a single fixed wheel pulley is not a good choice. Using a single fixed pulley might be similar to using a handbag, but it’s not very convenient. This type of pulley system relies on friction to transmit motion. As a result, it can slip and isn’t always reliable. Fortunately, you can find other options that work just as well.
Fixed pulleys are the most basic type of pulley. They consist of grooved wheels and ropes attached to objects. These pulleys make lifting easier. Because the rope or cable only moves in one direction, the movement of the object feels lighter. And they are also easy to install. However, before you buy a fixed wheel pulley, make sure it is strong enough to support the weight of the load.
The disadvantages of fixed pulleys are obvious. One of them is the lack of mechanical advantage. A fixed pulley pulls up with the same force as a single moving pulley, and a single fixed pulley is not particularly effective as a force multiplier. However, the effect is more pronounced when you combine multiple fixed-wheel pulleys. You will get double the power! So what do fixed wheel pulleys have to offer?
Fixed wheel pulleys can be as small as a ring. A single ring pulley requires twice as much force as the weight being pulled. Adding more loops to the rope will reduce the effort required to pull the weight. The mechanical advantage of a fixed pulley is proportional to the number of strands running to the free pulley. A 100-pound pull on the free end will lift a 300-pound load.
pulley

composite pulley

Compound pulleys are pulleys that can be used to change the direction of a control wire. It can also be used to modify the mechanical force of the wire by moving the item it is connected to. In galleons, compound pulleys are more common. They are often combined with other ropes for mechanical advantage. Here are some common uses for composite pulleys.
The ideal mechanical advantage of a pulley is equal to the number of rope segments that pull up the load. This means that the more rope segments, the less force is required. A compound pulley will have the ideal mechanical advantage of 2, which means it will generate more force than a simple pulley. Composite pulleys are also more efficient at transmitting force because their number of rope segments is usually equal to the unit weight.
Composite pulley systems use more than two pulleys and ropes. More pulleys will reduce the force required to move heavier objects. They are usually used in large sailboats. The system is also used on construction sites. It can be used for a variety of applications, including lifting large objects or transmitting electricity. You can imagine how it would change your life if you had to move a large sailboat, but the result would be the same: a composite pulley system would make it easier to lift a large sailboat.
Composite pulleys are also known as fixed pulleys. The fixed pulley is stationary, and the movable pulley moves back and forth. The latter is more effective when used with a detachable cord or strap. On the other hand, a moving pulley is a moving pulley and it gives you a mechanical advantage. You can imagine this pulley on a flagpole.

load multiplier

The multiplication system has three basic parts: the rope grab, the connector, and the pulley. While some basic multipliers may combine the three parts, the concept remains the same. The multiplication system can make pulling the rope easier by reducing the amount of friction that occurs. Below are some examples of multiplication systems. A compact rope grab is a great option for resetting the multiplier.
The load reduction that a pulley system can achieve is proportional to the number of ropes used to support it. Although most utility pulley systems use only four ropes, the theoretical maximum load reduction is a quarter of the actual load. In other words, the four-wheel system only reduces the weight of a 1,000-pound load by a quarter. That would require 167 pounds of force, a far cry from the 500-pound load a single pulley system can achieve.
The mechanical advantage of a pulley system can be calculated by calculating the ratio between the forces exerted on each wire. For example, a 90-kilogram load is supported by three ropes, each weighing about thirty-five pounds. The ropes on pulleys A and B each carry a load of 60 kg. Using this formula, a single pulley system will yield a mechanical advantage over two tractors.
To calculate the force required to pull the rope over the pulley, measure the angle and deflection between the ropes. The deflection angle when added to the included angle should equal 180 degrees. A 75 degree angle requires 159% of the load force. This means a total load multiplier of four. This formula is an important tool for calculating the force multiple of the pulley.
pulley

Disadvantages of fixed pulleys

There are two basic types of pulleys: movable and fixed. Active pulleys are more advanced, allowing the pulley to move according to the load. They reduce the force required to lift the load. Active roller pulleys are more compact and therefore take up less space. Both types are good for lifting heavier objects, but they each have their pros and cons.
Fixed wheel pulleys can be used to lift heavy objects. This type of pulley consists of a wheel with a fixed shaft that has grooves on its edges for guiding ropes or cables. This is a simple machine as no motor or engine is required to lift objects. When two or more wheels are used together, the ropes around the wheels form a powerful hoist.
Single wheel pulleys are not suitable for lifting. They tend to push things down. Also, they are unreliable because they rely on friction and can slip. Also, a single wheel pulley would require a lot of space. Another disadvantage of fixed-wheel pulleys is that they make it difficult to move heavy objects easily. Single fixed-wheel pulleys also tend to slip easily, making them a poor choice for many applications.
Fixed wheel pulleys are also easier to install and maintain than manually operated ones. It requires less space and lubrication than manual pulleys. Manual pulleys can cause injury because the operator will be lifting the full weight of the heavy object. Additionally, rope slippage can lead to muscle strains and rope burns. And the system requires frequent maintenance.

China Best Sales Customized Belt Conveyor Drive Drum /Bend /Snub/ Pulley   crankshaft pulley	China Best Sales Customized Belt Conveyor Drive Drum /Bend /Snub/ Pulley   crankshaft pulley
editor by CX

2023-05-23