China best 5 Way Pulley Blocks Roller for 4 Conductor Stringing in Overhead Powerlines Stringing with Best Sales

Product Description

Name: 5 way pulley blocks roller for 4 conductor stringing in overhead powerlines stringing     
Raw material:
The raw material of the sheave is high-strength MC nylon materials,and the frame is made up of high-quality carbon steel.
Product instructions:
Protect the cable and conductor from fricting when they are laying the conductors / cables in the high-voltage power transmission line projects.They can save much time and effort.

Sr Model Sheave Rated Load(Kn) Conductor
Groove width
Outside Diameter
Width(mm) Weight(Kg)
0571 11 1FXH-508MC 1 20 ≤400 408 508 75 16
0571 12 1FXH-660MC 1 20 ≤500 560 660 90 29
0571 13 1FXH-660MC 1 20 ≤500 560 660 100 31
0571 14 1FXH-820MC 1 30 ≤630 710 820 100 40
0571 15 1FXH-916MC 1 50 ≤720 800 916 110 51
0571 16 3FXH-508MC 3 40 ≤400 408 508 75 38
0571 17 3FXH-660MC 3 40 ≤500 560 660 90 70
0571 18 3FXH-660MC 3 40 ≤500 560 660 100 75
0571 19 3FXH-820MC 3 50 ≤630 710 820 100 118
050110 3FXH-916MC 3 75 ≤720 800 916 110 120
050111 5FXH-508MC 5 60 ≤400 408 508 75 70
050112 5FXH-660MC 5 60 ≤500 560 660 100 110
050113 5FXH-820MC 5 60 ≤630 710 820 100 170
050114 7FXH-508MC 7 75 ≤400 408 508 75 106
050115 7FXH-660MC 7 75 ≤500 560 660 90 180

Small aerial helicopter conductor cable stringing pulley blocks

Sr. Model ACSR(mm2) Rated Load(Kn) Outside Dia(mm) Width(mm) Weight(Kg)
0571 11 FXHΦ90 25-70 5 90 40 0.8
0571 12 FXHΦ120 70-95 10 120 30 1.2
0571 13 FXHΦ150 70-95 10 150 30 1.8
0571 14 FXHΦ170 95-120 10 160 40 2.1
0571 15 FXHΦ200 150-240 10 200 50 3
0571 16 FXHΦ250 150-240 20 250 40 3.2
0571 17 FXHΦ250 150-240 20 250 60 5
0571 18 FXHΦ270 300-400 20 270 60 5.5
0571 19 FXHΦ320 300-400 20 320 80 6.3
0571 10 FXHΦ360 300-400 20 360 80 7.5
0571 11 FXHΦ408 300-400 20 408 80 8.8

Longree orientation and service
Longreen is an international stringing equipment supplier as well as manufacturing & trading combo, providing one-stop service.
We not only produce and sell Longreen standard products, OEM and customize products, but also offer presales and aftersales support by ourselves.

Where to buy
Longreen sells and offer service directly from China, then ship to your seaport, airport and even some doorstep.

Customers Inquiry
If urgent, customers can also use online contact ways (Online chatting, Skype, WhatsApp, WeChat) for fast and better communication.
Any inquiry will be replied within 12 working hours.

Longreen quote
After analyzing the inquiry, Longreen team will send a quotation, datasheet or other relative files for reference.

Customer makes payment
Once the order confirmed, customers make payment.
Longreen support T/T, West Union, MoneyGram payment way.

Longreen arrange production
Production time
5 working days for some in-stock products; 10 working days for most of the goods
4 weeks for bulk order. All goods will be tested for 24 hours before package.

Longreen arrange packing and shipment
All goods will be packed in plywood box for safe and long-time transportation. Longreen support EXW, FOB, CIF, CRF, DDP, DDU term.
Any documents needed will be provided, such as packing list, commercial invoice, bill of lading, airway bill, CO, Form E, Form F, ect.

Operation support
The operation of puller and tensioner is easy and simple.
We will finish the assembly and test well before shipment.
Operation manual will be provided and once needed other support, we will offer service through video, email, pictures and online communication.

Calculate the ideal mechanical advantage of pulleys

The basic equations for pulleys can be found in this article. It will also cover the different types of pulleys, the ideal mechanical advantages of pulleys, and some common uses of pulley systems. Read on to learn more! After all, a pulley is a simple mechanical device that changes the direction of a force. Learn more about pulleys and their common uses in engineering.

pulley basic equation

Pulleys work the same way as gravity, so they should withstand similar forces. Newton’s laws of motion can be used to calculate the forces in a pulley system. The second law of motion applies to forces and accelerations. Similar to this is Newton’s third law, which states that the directions of forces are equal and opposite. The fourth law dictates the direction of force. The Fifth Law states that tension is in equilibrium with gravity.
A pulley is a simple mechanism that transmits force by changing direction. They are generally considered to have negligible mass and friction, but this is only an approximation. Pulleys have different uses, from sailboats to farms and large construction cranes. In fact, they are the most versatile mechanisms in any system. Some of their most common applications and equations are listed below.
For example, consider 2 masses m. Those of mass m will be connected by pulleys. The static friction coefficient of the left stop is ms1, and the static friction coefficient of the right stop is ms2. A no-slip equation will contain multiple inequalities. If the 2 blocks are considered to be connected by a pulley, the coefficient of kinetic friction is mk. In other words, the weight of each block carries the same mass, but in the opposite direction.

Types of pulleys

A pulley is a device used to pull and push objects. Pulley systems are ropes, cables, belts or chains. The “drive pulley” is attached to the shaft and moves the driven pulley. They are available in a variety of sizes, and the larger they are, the higher the speed of power transmission. Alternatively, use small pulleys for smaller applications.
Two-wheel pulleys have 2 mechanical advantages. The greater the mechanical advantage, the less force is required to move the object. More wheels lift more weight, but smaller pulleys require less force. In a two-wheel pulley system, the rope is wound around 2 axles and a fixed surface. As you pull on the rope, the shafts above slowly come together.
Compound pulleys have 2 or more rope segments that are pulled up on the load. The mechanical advantage of compound pulleys depends on the number of rope segments and how they are arranged. This type of pulley can increase the force by changing the direction of the rope segment. There are 2 main types of pulleys. Composite pulleys are most commonly used in construction. The ideal mechanical advantage of pulleys is 2 or more.
Construction pulleys are a basic type. They are usually attached to wheel rails and can be lifted to great heights. Combinations of axes are also common. Construction pulleys can be raised to great heights to access materials or equipment. When used in construction, these pulleys are usually made of heavy materials such as wood or metal. They are secured with ropes or chains.

The ideal mechanical advantage of pulleys

The pulley system is a highly complex system with high mechanical advantages. Use a single pulley system to reduce the force required to lift an object by cutting it in half. The mechanical advantage increases as you add more pulleys, such as 6 or seven. To calculate the mechanical advantage of a pulley system, you need to count the number of rope segments between the pulleys. If the free end of the rope is facing down, don’t count it. If it’s facing up, count. Once you have your number, add it up.
The required mechanical advantage of a pulley is the number of rope segments it has to pull the load. The more rope segments, the lower the force. Therefore, the more rope segments the pulley has, the lower the force. If the rope segments are four, then the ideal mechanical advantage is four. In this case, the composite pulley quadrupled the load force.
The ideal mechanical advantage of a pulley system is the sum of the mechanical force and the force required to lift the load at its output. Typically, a single pulley system uses 2 ropes, and the mechanical force required to lift the load is multiplied by the 2 ropes. For a multi-pulley system, the number of ropes will vary, but the total energy requirement will remain the same. The friction between the rope and pulley increases the force and energy required to lift the load, so the mechanical advantage diminishes over time.

Common uses of pulley systems

A pulley system is a simple mechanical device typically used to lift heavy objects. It consists of a rotating wheel attached to a fixed shaft and a rope attached to it. When the wheel moves, the force applied by the operator is multiplied by the speed of the pulley, and the force is multiplied by the weight of the object being lifted. Common uses for pulley systems include pulling, lifting, and moving heavy objects.
The oil and petroleum industries use pulley systems in a variety of applications. Most commonly, pulleys are used in drilling operations and they are installed on top of the rig to guide the cable. The cable itself is attached to 2 pulleys suspended in the derrick, where they provide mechanical energy to the cable. Using a pulley system in this application provides the force needed to move the cable safely and smoothly.
The main advantage of the pulley system is that it minimizes the force required to lift an object. The force used to lift the object is multiplied by the desired mechanical advantage. The more rope segments, the lower the force required. On the other hand, a compound pulley system can have many segments. Therefore, a compound pulley system can increase the force a worker can exert on an object.
Safety Precautions to Take When Working on Pulley Systems

There are many safety precautions that should be observed when working on a pulley system. The first is to wear proper protective gear. This includes hard hats that protect you from falling objects. Also, gloves may be required. You should limit the amount of movement in the penalty area, and you should also keep the area free of unnecessary people and objects. Also, remember to wear a hard hat when working on the pulley system.
Another important safety precaution when working on a pulley system is to check the Safe Working Load (SWL) of the pulley before attaching anything. This will help you understand the maximum weight the pulley can hold. Also, consider the angle and height of the pulley system. Always use safety anchors and always remember to wear a hat when working on a pulley system.
Safe use of chain hoists requires training and experience. It is important to read the manufacturer’s manual and follow all safety precautions. If you’re not sure, you can actually inspect the hoist and look for signs of damage or tampering. Look for certifications for sprocket sets and other lifting accessories. Look for the Safe Working Load (SWL) marking on the chain hoist.

Example of a pulley system

Pulley systems are often used to lift items. It allows you to reduce the effort to lift and move the load by applying force in 1 direction. Pulley systems can be built and modeled to fit any type of project. This resource focuses on pulley systems and is designed to support the new GCSEs in Engineering, Design and Technology. There are also many examples of pulley systems suitable for various applications.
In the study, participants who read easy text took longer to manipulate the pulley system than those who read challenging text. In general, this suggests that participants with prior scientific experience used their cognitive abilities more effectively. Additionally, students who read simple texts spent less time planning the pulley system and more time on other tasks. However, the study did show that the time required to plan the pulley system was similar between the 2 groups.
In everyday life, pulley systems are used to lift various objects. Flagpoles are 1 of many pulley systems used to raise and lower flagpoles. They can also be used to raise and lower garage doors. Likewise, rock climbers use pulleys to help them ascend and descend. The pulley system can also be used to extend the ladder.

China best 5 Way Pulley Blocks Roller for 4 Conductor Stringing in Overhead Powerlines Stringing   with Best SalesChina best 5 Way Pulley Blocks Roller for 4 Conductor Stringing in Overhead Powerlines Stringing   with Best Sales