China manufacturer Ztt296c (7031) -12ton Tower Crane Brands Flat Top Tower Cranes Free Climbing Tower Cranes near me manufacturer

Product Description

 Mechanisms Specifications

(ZTT296C 12T)
2Fall 4Fall  Drum capacity Motor
m/min t m/min t KW
Hoisting 12T 75LVF30A 0-45
670m 55
Trolleying BP7575X 0-60 m/min 7.5
Slewing RVF7.5 0-0.7 rpm 2*7.5
Travelling RT 12.5-25 m/min 4*1.7/3.4


Pressure KVA
380V(±10%)     50HZ 75LVF30: 104     85LVF40: 116     100LVF30B/100LVF40B: 130


Main Features

        With the reputation of "Intelligent Hoisting Expert" in the industry, CZPT has specially designed the tower crane from its steel structure, mechanism, and electric control technology, which makes it more suitable for intelligent hoisting operation scenarios, such as the 2 operation stages of "hoisting" and "installing" in PC building construction. CZPT tower crane adopts the European F.E.M design standard in steel structure and is equips with more than 10 unique intelligent hoisting modules in hoisting system, which ensure the safety of tower crane all-around and realize the high efficiency & intelligence of the whole hoisting operation.

LVF mechanism:
1. Flender and another famous brand reducer 
2. The perfect combination of the large drum and double-folding groove, no more cost for a large amount of wire rope wear and tear
3. High-performance vector variable frequency speed regulation, no mechanical shock, sensitive electrical response
4. Wide range of frequency modulation, controllable speed, with long-term low-speed and large-torque output motor characteristics
5. Multiple active safety brake protection, ensuring hoisting safety
6. Millimeter-level control accuracy, with "assembly operation mode", prevents misoperation, completely independent intellectual property rights.

Integrated big luxury cabin with air conditioner built-in. Provide unmatched comfort over long hours on the job.

Constant temperature and humidity environment with air conditioner built in, keep operators comfortable. The whole electrical control system is positioned inside the cabin.

Improve the service life of electrical components and ensure safe operation for the serviceman. The air conditioner is no longer disassembled when the equipment is repeatedly installed, which improves the air conditioner's service life and simplifies the installation process.

Electrical all in 1 panel authorized by ABB group located inside the cabin, waterproof, anti wire aging,anti-electromagnetic interference, not affected by any weather condition, easy operation for serviceman, saving your maintenance cost.
Equipped with a temperature sensor to avoid the danger of fire and ensure the safe operation of the electrical system.


    Each mast section is equipped with an inclined ladder and 1 hot galvanized rest platform per 3 meters, super safe for climbing, the mast section are L46A1, L68A1, L68B1, L68B2, L69 type, which can be global interchangeable.

      ZheJiang CZPT Intelligence Equipment Co., Ltd.(ZTM) is a leading construction equipment manufacturer in the industry. Founded in 2003, the company specializes in the research, development, and manufacturing of tower cranes and construction hoists. After years of climbing and breakthroughs, CZPT ranked as the NO. 5 tower crane manufacturer and has also become a member of drafting industry-related standards in China.
        With innovation and development for many years, CZPT specialized in hammerhead tower crane series, flat top and luffing tower crane series, each series with a wide range of size and capacities, all strictly comply with European standard F.E.M 1.001. As a leading manufacturer in the industry, the CZPT production facility cover an area of 200,000 square meters, approximately 1100 employees included sales, R&D, after-sales, and technical support. We have been exported to more than 80 countries and areas all over the world such as Korea, Malaysia, Vietnam, South America, Middle East, Southeast Asia, etc. CZPT tower cranes are fitted with A to Z safety features to help increase safety for the technician, operators in the work environment, safety access to all zones.

Q1:Are you a trading company or manufacturer?
A1: ZTM is an original manufacturer.

Q2: How to confirm a suitable tower crane model?
A2: My friends, please tell us the below basic parameters to confirm the tower crane model:
       a. Building height or tower crane working height.
       b. Max load capacity and tip load capacity.
       c. Span or jib length
       d. Other Special requirements

Q3:  Quality Warranty
A3: We grant our clients as a twelve-month or 2000-hours warranty for any machine purchased from us.

Q4: How long is your delivery time?
A4:Generally 7-15 days after advance payment.

Q5: Is it convenient to visit your factory?
A5: Yes, we welcome every customer to visit our company. We also supply to visit our factory by live stream.

Any other questions, please give us a message, hope can cooperate with you! and welcome you to visit us!



The importance of pulleys

A pulley is a wheel that rides on an axle or axle. The purpose of the pulley is to change the direction of the tensioning cable. The cable then transfers the power from the shaft to the pulley. This article explains the importance of pulleys and demonstrates several different uses for this machine. Also, see the Mechanical Advantages section below for the different types. let's start.

simple machine

A simple pulley machine is a device used to transfer energy. It consists of a wheel with flexible material on the rim and a rope or chain tied to the other end. Then lift the load using the force applied to the other end. The mechanical advantage of this system is one, as the force applied to the load is the same as the force on the pulley shaft.
A simple pulley machine has many benefits, from the ability to build pyramids to building modern buildings with it. Pulleys are also popular with children because they can perform simple tasks such as lifting toys onto a slide, sliding them off the slide, and lifting them up again. These activities, called "transportation" by child development theorists, allow them to learn about the physics of simple machines in the process.
The mechanism works by using cables to transmit force. The cable is attached to 1 side of the pulley and the other side is pulled by the user. Lift the load by pulling on 1 end and the other end of the rope. Simple pulley machines have many commercial and everyday applications, including helping move large objects. They can be fixed or movable, and can be a combination of both. The present invention is a great tool for any beginner or engineer.


The axle wheel is the basic mechanical part that amplifies the force. It may have originally appeared as a tool to lift buckets or heavy objects from a well. Its operation is demonstrated by large and small gears attached to the same shaft. When applied to an object, the force on the large gear F overcomes the force W on the pinion R. The ratio of these 2 forces is called the mechanical advantage.
The ideal mechanical advantage of shaft pulleys is their radius ratio. A large radius will result in a higher mechanical advantage than a small radius. A pulley is a wheel through which a rope or belt runs. Often the wheels are interconnected with cables or belts for added mechanical advantage. The number of support ropes depends on the desired mechanical advantage of the pulley.
In the design of the axle wheel, the axle is the fulcrum and the outer edge is the handle. In simple terms, wheels and axle pulleys are improved versions of levers. The axle pulley moves the load farther than the lever and connects to the load at the center of the axle. Shaft pulleys are versatile and widely used in construction.

rope or belt

Ropes or pulleys are mechanical devices used to move large masses. The rope supports a large mass and can be moved easily by applying a force equal to 1 quarter of the mass to the loose end. Quad pulleys have 4 wheels and provide the mechanical advantage of 4 wheels. It is often used in factories and workshops. It is also a popular choice in the construction industry. If you are installing a pulley in your vehicle, be sure to follow these simple installation instructions.
First, you need to understand the basics of how a rope or pulley works. The machine consists of 1 or more wheels that rotate on an axle. The rope or belt is wrapped around the pulley and the force exerted on the rope is spread around the pulley. It then transfers the force from 1 end of the rope to the other. The pulley system also helps reduce the force required to lift objects.
Another common rope or pulley is the differential pulley. This is similar to a rope pulley, but consists of 2 pulleys of different radii. The tension in the 2 halves of the rope supports half the load that the live pulley should carry. These 2 different types of pulleys are often used together in composite pulley systems.

Mechanical advantage

The mechanical advantage is the ratio of the force used to move the load through the pulley system to the force applied. It has been used to measure the effectiveness of pulley systems, but it also requires assumptions about applied forces and weights. In a simple 1:1 pulley system, the weight lifting the weight is the same as the weight of the person pulling the weight. Adding mechanical advantage can help make up for the lack of manpower.
This advantage stems from the mechanical properties of simple machines. It requires less force and takes up less space and time to accomplish the same task. The same effect can also be achieved by applying less force at a distance. Furthermore, this effect is called the output force ratio. The basic working principle of a pulley system is a rope with a fixed point at 1 end. The movable pulley can be moved with very little force to achieve the desired effect.
The load can be moved through the vertical entry using a simple pulley system. It can use a simple "pulley block" system with a 2:1 "ladder frame" or a 4:1 with dual pulleys. This can be combined with another simple pulley system to create a compound pulley system. In this case, a simple pulley system is pulling another pulley, giving it a 9:1 mechanical advantage.

Commonly used

You've probably seen pulley systems in your kitchen or laundry room. You probably already use it to hang clothes on an adjustable clothesline. You may have seen motor pulleys in the kitchens of commercial buildings. You might even have seen 1 on a crane. These machines use a pulley system to help them lift heavy loads. The same goes for theaters. Some pulleys are attached to the sides of the stage, enabling the operator to move up and down the stage.
Pulley systems have many uses in the oil and petroleum industry. For example, in the oil and gas industry, pulley systems are used to lay cables. They are arranged in a pulley structure to provide mechanical energy. When the rope is running, 2 pulleys are hung on the derrick to facilitate smooth running. In these applications, pulleys are very effective in lifting heavy objects.
A pulley is a simple mechanical device that converts mechanical energy into motion. Unlike chains, pulleys are designed to transfer power from 1 location to another. The force required to lift an object with a pulley is the same as that required by hand. It takes the same amount of force to lift a bucket of water, but it's more comfortable to pull sideways. A bucket of water weighs the same as when lifted vertically, so it's easy to see how this mechanism can be useful.

Safety Notice

When using pulleys, you should take several safety precautions to keep your employees and other workers on the job site safe. In addition to wearing a hard hat, you should also wear gloves to protect your hands. Using pulleys can lead to a variety of injuries, so it's important to keep these precautions in mind before using pulleys. Here are some of the most common:
Pulleys are an important piece of equipment to have on hand when lifting heavy objects. Pulleys not only reduce the force required to lift an object, but also the direction of the force. This is especially important if you are lifting heavy objects, such as a lawn mower or motorcycle. Before starting, it is important to make sure that the anchoring system can support the full weight of the object you are lifting.
When using a pulley system, make sure the anchor points are adequate to support the load. Check with the pulley manufacturer to determine the weight it can safely lift. If the load is too large, composite pulleys can be used instead. For vertical lifts, you should use a sprocket set and wear personal protective equipment. Safety precautions when using pulleys are critical to worker health and safety.

China manufacturer Ztt296c (7031) -12ton Tower Crane Brands Flat Top Tower Cranes Free Climbing Tower Cranes     near me manufacturer China manufacturer Ztt296c (7031) -12ton Tower Crane Brands Flat Top Tower Cranes Free Climbing Tower Cranes     near me manufacturer