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China Tower Crane Spare Parts Nylon Pulley supplier

Product Description

Solution Description

>>>Main Paramters of Electric Tower Cranes

Product              QTZ80(6571)        
Max Load eight t
Tip load 1.0t @fifty six m
Jib duration 60m
Mast one.8*1.8*2.8 m
Hoist peak according to your need
Carry speed (a=2) 100/fifty/10 m/min (a=4) fifty/25/5 m/min
Trolley speed 22/24 m/min
Slewing pace .62 r/min
Jack clmbing pace .4 m/min
Principal electric powered Schneider

>>>Safety Attribute for Construction Electrical Tower Crane

1   Torque limiter it will warns when lifting weights attain to ninety% of rated lifting torque.
When achieve to one hundred ten% of the rated lifting torque, it will limit increasing upwards and trolley.
two Excess weight limiter Management the greatest lifting ability.
lifting weight attain to forty% of the rated ability, restrict large-pace lifting
lifting bodyweight attain to a hundred and ten% of the rated ability, limit  the lifting up
three Height limiter Manage the cheapest and greatest severe place of lifting hook
four Slewing limiter Handle the severe turns amount of switch still left and proper
five Amplitude limiter Handle trolley restrict situation of inward and outward
6 Overload security If the material is in excess of the capacity, the crane will give a sharp warning for defense by itself
seven Emergency brake If the procedure staff  encounter some unexpected emergency scenario, we could begin the unexpected emergency brake program to safety the related treasure
8 Handle Technique Room control or distant handle to keep away from any damage to the procedure personnel
nine Major lifting motor with thermal defense and currency safety

>>>Our Edge for Electric powered Tower Crane

1.We are group company but also manufactuer,which have more than 10 several years export experiance

2.we can immediate sale the crane towers for you with higher high quality and competitive price

three.We can customized for you, the functioning top, functioning radius, max load capacity and so on

 

>>>What We Offer for Electric Tower Crane

Design Regular Product Jib Duration/m Tip load /t Max Load/t
QTZ31.5 4208 forty two .eight three
QTZ40 4808 forty eight .8 four
QTZ50 5008 fifty .eight 4
5571 50 one. four
QTZ63 5571 fifty one. 5
5013 fifty one. 6
5610 56 1. six
QTZ80 5610 topless 56 one. 6
5513 55 1.three six
6571 sixty one. six
6571 sixty one. 8
QTZ125 6015 sixty 1.5 eight or 10
QTZ160 6516 65 1.six ten
QTZ250 7030 70 three 12 or 16
QTZ315 7040 70 four sixteen or 18
QTZ400 7055 70 5.five twenty five

>>> Our Provider for Electric powered Tower Crane

Pre-sale Service
1. We can customize merchandise in accordance to client’s demand. Numerous sorts of tower crane for your selection.
2. Very good Quality & Factory Cost & Quick Reaction & Reliable Provider, are what we are attempting best to offer you you
3. All of our merchandise are made by our skilled workmen and we have higher effectiveness income group, you can totally believe in us.
four. We have a lot more than 20 many years encounter in creating and manufacturing, we cherish each and every purchase from our honored customers.

Right after your choice
1. We will depend least expensive transport cost and make bill to you at as soon as.
2. Test each equipment just before shipping to make sure their quality, then deliver out to you after your payment.

Soon after-sale Service
1. Our engineers are obtainable to guide the operators overseas. 
two. We are quite happy that buyer give us some recommendation for value and products.
three. If you have any question, make sure you contact us freely by E-mail or Telephone

>>> Principal Areas Brand We Use

>>>Packing Shipping and delivery
Metal composition naked or packed by bubble. 
Electric powered portion and effortlessly desire components packed by substantial good quality plywood box

>>>Payment Phrases
one.T/T
2.LC
3.Western union

>>> Company Information 
Tavol Cranes Group
 is the skilled crane and carry platform producer in China .

We Layout,Manufacture,Set up,Mend,Servicing,Trade and Export pursuing merchandise:
+ Best Kit Tower Crane, Topless Tower Crane, Building Hoists etc.
+ Scissor Raise, Cargo Elevate, Wheelchair Carry , Dumbwaiter, Dock Ramp and so on

 

>>>Contact
 If you are interested in electric powered tower crane, make sure you no wait to speak to us with pursuing parameters:
one. Max crane peak under jib ?
two. Operating radius?
3. Max load ?
4.Tip load 

Best Regards 
Kitty Yang

>>>Our Services

Pre-sale Service
one. We can customise merchandise in accordance to client’s demand. Different sorts of tower crane for  your
 choice.
two. Excellent Good quality & Manufacturing unit Price & Swift Reaction & Reputable Provider, are what we are trying greatest
to provide you
three. All of our goods are produced by our specialist workmen and we have large effectiveness sales
crew, you can completely believe in us.
four. We have far more than twenty years knowledge in creating and production, we cherish each
get from our honored clientele.

Soon after your choice
1. We will rely least expensive shipping expense and make bill to you at once.
2. Examination each and every equipment before supply to ensure their quality, then send out out to you following your
payment.

After-sale Services
1. Our engineers are available to guidebook the operators abroad. 
two. We are extremely glad that client give us some recommendation for price and goods.
three. If you have any issue, remember to make contact with us freely by E-mail or Phone

>>>Packing Shipping
Metal structure naked or packed by bubble. 
Electric powered element and effortlessly demand elements packed by higher quality plywood box

>>>Payment Terms
one.T/T
two.LC
three.Western union

>>> Firm Info 
Tavol Cranes Group
 is the professional crane and lift platform manufacturer in China .

We Design,Manufacture,Installation,Restore,Upkeep,Trade and Export following products:
+ Prime Kit Tower Crane, Topless Tower Crane, Building Hoists etc.
+ Scissor Lift, Cargo Raise, Wheelchair Carry , Dumbwaiter, Dock Ramp and many others
 

>>>Contact
 If you are fascinated in 5t –25 tons tower crane, you should no hesitate to get in touch with us with adhering to parameters:
1. Max crane top below jib ?
2. Working radius?
3. Max load ?
4.Tip load 

 

To Be Negotiated 1 Set
(Min. Order)

###

After-sales Service: Yes
Warranty: 12 Months
Certification: GS, CE, ISO9001
Condition: New
Maximum Lifting Height: 100-150m
Maximum Lifting Weight: 6t

###

Customization:
Available

|


###

Model              QTZ80(6010)        
Max Load 8 t
Tip load 1.0t @56 m
Jib length 60m
Mast 1.8*1.8*2.8 m
Hoist height according to your demand
LIft speed (a=2) 100/50/10 m/min (a=4) 50/25/5 m/min
Trolley speed 22/24 m/min
Slewing speed 0.62 r/min
Jack clmbing speed 0.4 m/min
Main electric Schneider

###

1   Torque limiter it will warns when lifting weights reach to 90% of rated lifting torque.
When reach to 110% of the rated lifting torque, it will limit rising upwards and trolley.
2 Weight limiter Control the maximum lifting capacity.
lifting weight reach to 40% of the rated capacity, limit high-speed lifting;
lifting weight reach to 110% of the rated capacity, limit  the lifting up
3 Height limiter Control the lowest and highest extreme position of lifting hook
4 Slewing limiter Control the extreme turns number of turn left and right
5 Amplitude limiter Control trolley limit position of inward and outward
6 Overload protection If the material is over the capacity, the crane will give a sharp warning for protection itself
7 Emergency brake If the operation staff  encounter some emergency situation, we could start the emergency brake system to protection the related treasure
8 Control Method Room control or remote control to avoid any injury to the operation staff
9 Main lifting motor with thermal protection and currency protection

###

Model Standard Model Jib Length/m Tip load /t Max Load/t
QTZ31.5 4208 42 0.8 3
QTZ40 4808 48 0.8 4
QTZ50 5008 50 0.8 4
5010 50 1.0 4
QTZ63 5010 50 1.0 5
5013 50 1.0 6
5610 56 1.0 6
QTZ80 5610 topless 56 1.0 6
5513 55 1.3 6
6010 60 1.0 6
6010 60 1.0 8
QTZ125 6015 60 1.5 8 or 10
QTZ160 6516 65 1.6 10
QTZ250 7030 70 3 12 or 16
QTZ315 7040 70 4 16 or 18
QTZ400 7055 70 5.5 25
To Be Negotiated 1 Set
(Min. Order)

###

After-sales Service: Yes
Warranty: 12 Months
Certification: GS, CE, ISO9001
Condition: New
Maximum Lifting Height: 100-150m
Maximum Lifting Weight: 6t

###

Customization:
Available

|


###

Model              QTZ80(6010)        
Max Load 8 t
Tip load 1.0t @56 m
Jib length 60m
Mast 1.8*1.8*2.8 m
Hoist height according to your demand
LIft speed (a=2) 100/50/10 m/min (a=4) 50/25/5 m/min
Trolley speed 22/24 m/min
Slewing speed 0.62 r/min
Jack clmbing speed 0.4 m/min
Main electric Schneider

###

1   Torque limiter it will warns when lifting weights reach to 90% of rated lifting torque.
When reach to 110% of the rated lifting torque, it will limit rising upwards and trolley.
2 Weight limiter Control the maximum lifting capacity.
lifting weight reach to 40% of the rated capacity, limit high-speed lifting;
lifting weight reach to 110% of the rated capacity, limit  the lifting up
3 Height limiter Control the lowest and highest extreme position of lifting hook
4 Slewing limiter Control the extreme turns number of turn left and right
5 Amplitude limiter Control trolley limit position of inward and outward
6 Overload protection If the material is over the capacity, the crane will give a sharp warning for protection itself
7 Emergency brake If the operation staff  encounter some emergency situation, we could start the emergency brake system to protection the related treasure
8 Control Method Room control or remote control to avoid any injury to the operation staff
9 Main lifting motor with thermal protection and currency protection

###

Model Standard Model Jib Length/m Tip load /t Max Load/t
QTZ31.5 4208 42 0.8 3
QTZ40 4808 48 0.8 4
QTZ50 5008 50 0.8 4
5010 50 1.0 4
QTZ63 5010 50 1.0 5
5013 50 1.0 6
5610 56 1.0 6
QTZ80 5610 topless 56 1.0 6
5513 55 1.3 6
6010 60 1.0 6
6010 60 1.0 8
QTZ125 6015 60 1.5 8 or 10
QTZ160 6516 65 1.6 10
QTZ250 7030 70 3 12 or 16
QTZ315 7040 70 4 16 or 18
QTZ400 7055 70 5.5 25

What is a pulley?

Pulleys are shafts or wheels on a shaft that support the movement and change of direction of a taut cable. The pulley also transfers power from the shaft to the cable. A simple pulley is used to raise the school flag. Read on to learn about the basic types of pulleys. We also covered the use of pulleys in everyday life. Read on to learn more about this important mechanical part.
pulley

composite pulley

A composite pulley is a mechanical system where two or more pulleys and ropes are connected together. It reduces the force required to lift the load because the force is divided by the distance of each pulley. Distance is equal to the mass of the object. Composite pulleys are a common mechanical system on sailboats. Composite pulleys can be used to lift heavy equipment such as sails.
The compound pulley unit consists of two pulleys, one fixed and the other movable. The fixed pulley is fixed overhead, while the movable pulley is connected to the load by a chain. The lift applies force to the other end of the rope. Anchor points are attached to fixed joists, ceiling joists or sturdy branches. The chain should be long enough to support the load during lifting.
Composite pulleys can be made from a variety of materials. Some are fixed and remain fixed. Others are detachable. The composite pulley combines the advantages of both types, making it a versatile tool. In the table below, these three types of pulleys are compared. It’s easy to see which one is best for your needs. The right choice depends on your specific needs and budget.
The compound pulley system consists of two fixed pulleys and one movable pulley. The compound pulley system multiplies the force by a factor of 2. The compound pulley system is particularly suitable for heavy loads and is ideal for construction sites. Workers apply less than half the load force on the composite pulley, significantly reducing the force required. This is a major benefit for many people.

Fixed pulley

Fixed pulleys are fixed gears of fixed length that are mounted on solid objects. There are many different types of pulley systems. Some cooperate with each other, but not “fixed”.
Fixed pulleys can be used for a variety of purposes. One application is to lift small objects. They have a one-to-one mechanical advantage. Often, a single pulley can lift small loads. The force required to lift a single fixed pulley remains the same. They are usually used to lift lighter objects. They can even be attached to buckets used to draw water from wells.
While single fixed pulleys have desirable mechanical advantages, they are not suitable for force multipliers. Because their mechanical advantage diminishes over time, they are not effective force multipliers. They are used to redirect work so that it can be applied in the most convenient direction. This mechanical advantage is the main advantage of fixed pulleys and the most common way of moving objects. They have several benefits, including the ability to increase the speed of moving objects.
Another application for fixed pulleys is lifting supplies. A scaffold can weigh more than one and can be directly hoisted. In order to facilitate the transportation of materials, fixed pulleys are usually installed on the top of the scaffolding on construction sites. Then thread the rope through the edge of the groove that holds the pulley. The fixed pulley exerts the same force on the pull side as on the push side. The same is true for moving objects with fixed pulleys.
pulley

moving pulley

A movable pulley is a device whose part is fixed to another object, usually a rod or beam. The movable part moves with the load, making the load feel lighter. This is a useful tool for those who need to carry heavy items such as large bags. The advantages of moving pulleys are many. Here are some of them. Read on to learn more about them.
One of the most common uses of movable pulley systems is climbing high objects. Climbers act as pulley loads and pull ropes to lift objects. Eventually, when the traction stops, the climber descends. However, it is still a useful tool in other situations. The movable pulley system can help you climb the tallest objects or lift them to level surfaces.
Another example of movable pulleys is in industry. Depending on the load, movable pulleys make handling and moving loads easier. You can use them in a variety of applications in manufacturing and industry, including cleaning. For example, the American flag is raised and lowered every day. Removable pulleys are a handy tool when buildings need cleaning.
If you’re not sure whether a task requires a pulley, a zipline might be a good option. Connect the two ends of the rope and the pulley will move along the rope, then attach the rope to the metal cable. The load is the person holding the pulley, and the force comes from the attachment on the other end of the rope. There are two types of live pulleys: simple pulleys with just one wheel and live pulleys with many ropes attached.

School flag raised with simple pulleys

How is the school flag raised? It is pulled up by a rope attached to a pulley at the top of the pole. When the rope is pulled, the pulley turns, raising the flag. A pulley is a simple mechanism that helps people move heavier objects with ease. The rope must be securely attached to the pulley to keep the flag stable.
A simple pulley is a spinning wheel with grooves on one side and ropes on the other. The rope can be any length and the wheels can be any size. The rope has to go through the groove and the load is attached to the other end of the rope. Simple pulleys are pulleys with fixed shafts. An example is the wheel on a school flagpole.
A simple pulley system consists of a primary pole, a secondary pole and an outer member. The primary flagpole is connected to the track by a detour, while the secondary flagpole is connected to the track by a pipe. There is a groove on one side of the track, which passes through the inner cavity of the flagpole. An open track at the upper end of the track connects the two parts of the pulley.
A simple pulley can be used for many purposes. This is a useful machine that can be used to raise the flag. Among other things, it can be used in clothing lines, bird feeders, and even roofers. And, of course, you can use the pulley to raise the flag. Its versatility makes it an essential part of school decor.
pulley

cast iron pulley

If you are looking for pulleys for your machine, you may come across cast iron pulleys. They are usually cheap and available in a variety of sizes. The rim is held in place by a mesh attached to a central boss. The arms and spokes can be straight or curved, but most are oval. There are many uses for this type of pulley.
You might wonder why the arms of cast iron pulleys are so curved. Bent arms tend to yield rather than break. Cast iron pulleys are usually round with a slight bump on the rim, which helps keep the belt centered on the rim as it moves. On a 300mm diameter pulley, the bumps may be as small as 9mm.

China Tower Crane Spare Parts Nylon Pulley     supplier China Tower Crane Spare Parts Nylon Pulley     supplier
editor by CX 2023-03-27

China Heavy duty Hook Type H419 crane lifting snatch pulley block wholesaler

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Overview of Different Types of Pulleys

A pulley is a wheel mounted on a shaft or shaft. Its purpose is to facilitate the movement or change of direction of the cable or taut rope, and to transmit power between the cable and the shaft. Pulleys are typically used for lifting, winding or forklift applications. If you are building your own pulley system, the following design and installation considerations should be followed. This article will give you an overview of the different types of pulleys.
pulley

Pulley System Mechanics

There are many different ways to utilize the mechanism of the pulley system. The most basic pulley system consists of a fixed wheel and a support frame. Both components are connected by ropes or cables used to support the load. A pulley system is effective when the force required to lift the load is less than the weight of the object being lifted.
One way to use a pulley system is to suspend a block with a mass of 0.80 kg on a fixed pulley. Then another person can hang a bucket weighing up to 40kg. The weight of the bucket is transferred to the fixed pulley. The rope is attached to the pulley by a loop or sling. The rope will spin and pull on the barrel or block.
The pulley system is also an important tool for lifting heavy objects. Pulleys are often used in construction equipment to make lifting heavy objects easier. Gun tackles, yard tackles, and stationary tackle systems are common examples of these devices. They use the mechanical advantage of the design to guide the force that lifts the object. If you want to learn more about pulley systems, visit Vedantu. This website will provide you with a full description of the mechanism and its application.

Types of pulleys

Many different types of pulleys are used to lift heavy objects. They change the direction of the force and are an integral part of the cable system. Therefore, pulleys can move large and heavy objects more easily. However, before buying a pulley, you should have an idea of ​​the benefits it brings. Below are some of the most common uses for pulleys.
Conical Pulley: Consists of several small conical pulleys connected to each other. The larger base of one pulley is used to guide the force. Round pulleys are used in the same way as step pulleys. They are widely used in industry and can be purchased at any hardware store. Pulleys are a huge investment, and the benefits they provide far outweigh the cost.
Movable Pulls: These are similar to their names, but work by allowing objects to move with the pull. Their movable parts are attached to the object to be lifted. They are also ideal for lifting heavy loads and can be found in utility elevators and construction cranes. They are also used in many other industries. They can also be made of wood, plastic or metal. The type of pulley you use depends on its intended use.

Mechanical Advantages of Pulley Systems

A pulley system is a simple machine that reduces the effort required to lift heavy loads. This mechanical advantage is proportional to the number of loops. For example, if you have a single rope loop, you must apply equal force to lift the weight. When you add another rope loop, you can lift heavier weights just by applying the same force. Therefore, a pulley system is an excellent way to use gravity to your advantage.
Mechanical advantage is a measure of the effectiveness of a pulley system. This ratio of force to work is called the mechanical advantage. In other words, if the rope system has a large mechanical advantage, it means that it requires less force to lift heavier loads. This advantage is usually measured in kilograms and is the same for all pulley systems. In general, the greater the mechanical advantage, the less effort is required to lift the load.
The mechanical advantage of a pulley system is that a single movable pulley requires half the force to lift an object than a single fixed pulley. Assuming frictionless bearings, the MA of a single pulley system is 2, similar to the MA of a single lever. A single pulley travels twice as much as it takes to move heavy objects manually.
pulley

Considerations when designing and installing a pulley system

The capacity of the pulley depends on the type and diameter of the cable. Besides its diameter, its sheath should also support it well. The basic function of the pulley is also important. However, most people tend to ignore the pulley selection process, resulting in ineffective load-pull capabilities. To avoid such problems, different parameters must be carefully considered during design and installation.
During the design and installation of the pulley system, the ratio of the cable diameter to the largest pulley diameter must be considered. Those who work in the industrial sector will have an idea of ​​this ratio. The greater the D:d ratio, the greater the capacity of the cable to withstand the load. The best way to ensure secure design is to take the right information and use it to design a system that is both robust and secure.
When designing a pulley system, it is important to remember that the pulley needs to have enough power to operate safely. In addition to horsepower, the belt should have sufficient elongation to absorb shock loads. If the elongation of the belt is very small, it is very likely that the teeth will be sheared or broken, causing serious damage to the system. Extensive belt sag should be compensated for by offsetting the driven pulley. Finally, the frame supporting the pulley should be rigid. Otherwise, the non-rigid frame will cause center distance and tooth skipping changes.

Add more pulleys to the system

Adding more pulleys to the spool might have some effect. The friction between the rope and the pulley increases with the number of pulleys, which in practice limits the number of spools. The best solution is to combine the pulleys into one housing. If the load is small enough, adding a few pulleys probably won’t make a difference.
Using multiple pulleys allows a single load to be lifted with half the force required. The longer the rope, the greater the mechanical advantage. In fact, a spool can withstand a load of 100 N. Additionally, adding more pulleys quadrupled the mechanical advantage. In this case, a single 100 N load would require a force of 25 Newtons.
When the rope is used, it stretches as the weight of the object increases. This will make the rope longer, increasing its length and increasing the distance over which the load can be lifted. Eventually, the rope will break and the lifted object will fall. Then you will have to buy a new rope. It may seem like an expensive proposition, but it pays off in the long run.

cast iron pulley

Cast iron pulleys are the most popular choice among industrial users. They are made of solid cast iron and usually cost very little. Their rims are held in place by a mesh that extends from a central boss. They also have spokes and arms that hold them in place. These pulleys are ideal for a variety of applications including fan belts, compressors and conveyors.
V-groove drive pulleys are ideal for general purpose pulleys. It has an inner diameter of one inch and is commonly used in feeders and ventilation curtain systems. Its steel straps prevent rust and ensure it meets or exceeds industry standards. 3-1/2″ cast iron pulleys are also available. In addition to the V-groove drive pulley, there are similar pulleys for power transmission. The V-groove drive pulley is powder coated for added durability.
The cross section of the arm is elliptical, with the long axis twice as long as the short axis. The radius of the arm is equal to the diameter of the pulley. The thickness of the arm is a key factor to consider when purchasing a pulley. If you’re not sure which material you need, you can always consider wooden or steel pulleys. They are lighter and have a higher coefficient of friction than metal pulleys.
pulley

timing pulley

Plastic timing pulleys have many advantages over steel timing pulleys. On the one hand, they are lightweight and corrosion resistant, making them ideal for applications that do not require high torque and tensile strength. Another benefit is their resistance to high temperatures. Plastic timing pulleys are ideal for applications involving flammable gases, solvents or particles. They can last for many years. For more information on the different types of plastic timing pulleys.
Vertical shaft drives require flanged timing pulleys. For large span drives, at least one of these pulleys must be flanged. The flange provides a secure connection to the shaft and prevents ratcheting of the timing belt. Finally, HTD timing belt teeth prevent timing belt ratcheting. These teeth need a large enough space to be seated. However, they can also cause a backlash. These pulleys are not suitable for applications where positional accuracy is critical.
Timing belt systems are designed to avoid such problems. The drive shaft and the driven shaft are aligned with each other. The pulleys are located on different planes and are connected by pitch lines. The pitch line of the timing pulley coincides with the pitch line of the belt. These pulleys are also easier to implement and maintain. It is better to use a synchronous system because the resulting gear system emits less noise than other systems.

China Heavy duty Hook Type H419 crane lifting snatch pulley block     wholesaler China Heavy duty Hook Type H419 crane lifting snatch pulley block     wholesaler
editor by czh2023-02-15