Product Description

Agriculture Low Cost Multi-Span Plastic Film Greenhouse for Salad

1. Multi-span film greenhouse

      Mutil span greenhouse is the upgrade product of single span greenhouse. This kind greenhouse  with bigger space and enhance the land utilization.  Many big agriculture machine can work in side. The kind greenhouse suitable for trees and flowers’ planting. You can also add outer shading system, inner shading system,cooling system, heating system, irrigation system to make the best suitable greenhouse environment.
     We can provide one-stop service from designing, production, installation, testing and after-sale service. All the greenhouses can be made by customers’ demand and can be advised by our professional experience. Each greenhouse has been designed with a special grooved channel frame to help reinforce the panels against wind and bad weather.

Greenhouse Advantages

     Hot-dip galvanized steel pipe,and the zinc coatding is 275g/sqm.,no welding point ,all bolted connections,so there’s strong corrosion resistance,so at least 20 years of service life, saving you cost.
      All the steel pipe were after hot dip galvanized processing, with great corrosion resistance, so the service life is more than 20 years. You can customized the structure to make the high strength.
     There are PE and PO films,It has the characteristics of anti-drip, anti-ultraviolet, anti-aging ability and long service life.Film thickness: 0.12mm/0.15mm, Customized,Span:6.8m/8.0m/9.6m/10.8m, Customized,Length:12m, 16m, 20m, 24m, 28m, 32m, Customized,Height:2.5m-8m, Customized.Hight light transmittance light transmittance is up to 90%.

2. Greenhouse specification




Three layers co-extrusion pep film: drop layer,insulation layer and anti-age layer




Hot dip galvanized steel









Wind load


Snow load


3. Greenhouse system (Depend on customers’ request)

The ventilation system has top ventilation and side ventilation
The film greenhouse depends on the control of manual or electric film winder to realize the opening and closing of ventilation system.

Cooling system cooling fan and cooling pad use the water evaporation cooling principle to achieve the purpose of cooling.The system has the advantage of simple structure,low cost,low energy consumption,and reliable operation.

Heating system mainly include boilers and radiators,boilers sucr as gas boiler,diesel boiler,and biomass boiler;Radiators have Radiating pipe,heating pipe for hydroponics system,heating coil fan,gardening heater fan.
Besides, the Quilt for thermal insulation used together with heating boiler etc.

Outside shading System.
Material: circular knitting silk curtains
Function: The external shading system can improve the greenhouse environment by adjusting the light intensity.When the greenhouse is exposed to strong sunlight, the use of a shading screen, so that most of the sunlight can not be directly exposed to the greenhouse, to avoid burning crops after the strong light.

Inside Shading System.
Material: aluminum foil and polyester woven.
Function: reduce temperature, save energy, prevent lower condensation

1. Irrigation and fertilization water treatment system with reasonable design improves absorption function of crops toward fertilizer. Meanwhile, it improves crop quality.
2. It is especially suitable for the area with poor water quality and crop greenhouse which has high requirements for planting water quality.
3. The advanced treatment process is combined with greenhouse production process effectively.
                               Hydroponics are vegetables grown in most layer of the nutrient solution,which provide water,nutrients and oxygen only through nutrient solution.They are different from those grown in traditional soil cultivation.Vegetable grown in water cycle are short and rich in vitamins and minerals necesary for various human bodies. 

4. Related Products

Single-span CZPT type greenhouse Venlo type glass greenhouse


Venlo type PC greenhouse  Solar greenhouse



5. Worldwide cooperation/Our project in domestic and overseas market
     Every year we ship containers to all over the world. We have professional engineer department, if customer request, we can send our engineers to foreign countries to CZPT the installation. Every year there are many customers visiting our factory for business cooperation.
     Our greenhouse also exports to many countries in North America,Europe,Africa,Southeast Asia,Middle east and Oceania,sush as:United Sates,Canada,the Netherlands,Germany,Italy,France,Ukraine,Russia,Uzbekistan,Kazakhstan,Saudi Arabia,The United Arab Emirates,Ruwait,Thailand,India,Australia,Algeria,Nigeria,Tanzania and so on….

6.Our company
HangZhou CZPT Modern Agri culture Development Co.,Ltd is located in No.3337 Xihu (West Lake) Dis. Street,Economic Development Zone,HangZhou City,ZheJiang Province,P.R.China.We are specialized in manufacturing greenhouse and greenhouse products.
We are committed to research the efficient agricultural equipment and development of modern agriculture.We specialized in greenhouse engineering scintific research and steel structure design,production,installation,greenhouse material,greenhouse accessories for temperature design,production,installation,greenhouse material,greenhouse accessories for temperature control equipment,heat preservation facilities,sales and service.

Sincerely welcome to our factory!

7. FAQ

* Q: Do you offer customized greenhouse?
   A: Yes. As long as you offer details of local climate and requirements of the greenhouse you want ,we will offer free design program and quotation to you.
* Q: How long is your delivery time? 
  A: Generally it is 20-30 days after order. 
* Q: Do you provide samples? Is it free or extra? 
  A: Yes, we could offer the sample for free charge but do not pay the cost of freight. 
* Q: How to install the greenhouse? Do you provide installation service? 
  A: We will provide paper or video building manual, or CZPT we will send engineer to do installation guidance. 

What makes pulleys so important?

A pulley is a simple tool that makes it easy to lift or move heavy objects. There are many uses for this tool, but let’s take a look at their mechanical advantages. There are several types and many applications, along with their benefits and costs. So what makes them so important? Read on to find out! Below are some of the most common uses for pulleys. Let’s dive into them.

Mechanical advantage

If you’ve ever used rope and pulley systems, you’ve probably noticed their usefulness. A 3:1 mechanical advantage system is like a 300-pound load being moved 1 foot up by 3 feet of rope. Then you can imagine using the same rope to get into a small space. The same principle applies to limited spaces, and a simple mechanical advantage system is just what you need for this purpose.
Assuming frictionless bearings, a single movable pulley can have 2 mechanical advantages. It is attached to a heavy object and requires the pulling force exerted by the jack to lift the heavy object. However, when you use a compound pulley, the force exerted on the rope to lift the object changes direction. The 3 factors used to measure machine efficiency are force, distance, and relative motion.
The mechanical advantage of the pulley is that it reduces the effort required to lift weights. When the rope is attached to the 2 wheels, applying a force of 500 Newtons can lift a mass of 100 kg. This mechanical advantage is why 2 rings in a pulley are better than one. Therefore, using a pulley system will save you energy. You can also use branches instead of ropes and pulleys.


There are several different types of pulleys. They can be simple or complex, depending on how they are connected. Simple pulleys have a grooved wheel on 1 end and are attached to an axle. These pulleys are used to lift heavy objects. They are often found on sailboats, and you can even see them on construction sites. On the other hand, stationary pulleys are attached to stationary structures, such as flagpoles. Fixed pulleys can also be used to lift loads from trucks or trains. Pulleys are also commonly used in wells.
Fixed pulley systems use rollers or single wheels. These pulleys are usually made of nylon or wire rope. They are used in heavy duty applications. They are also used in electric motors. A “V” pulley requires a “V” belt to transmit power. Some of these pulleys have multiple “V” grooves to reduce the risk of power slipping. Once installed, fixed pulleys are suitable for many applications.
Simple pulleys are simple pulleys. It has a pulley mounted on an axle and a rope at 1 end. Rope can be used to pull objects, while plastic pulleys can carry lighter loads. There are 2 main types: heavy duty and simple pulley systems. In either case, their function is the same: they change the direction in which the seat belt is fastened. So when comparing the two, it’s easy to decide which 1 is best for you.


Pulley systems are simple machines used for a variety of industrial and mechanical tasks. Its design parameters and benefits have improved over the years, but they remain essential for many applications. Let’s take a look at some of the most common applications of pulleys. The applications for pulley systems are endless, from construction to mining, from transportation to packaging. Read on to learn more!
Pulley systems are often used to lift large objects, such as blocks, that might otherwise be too heavy to lift. It also makes the exploration process easier by helping people pull heavy objects into place. It is also widely used on sailing ships. Due to its low cost of use and no need for lubrication, it is a practical choice for many applications. It can be used to lift heavy objects and support long ropes.
The pulley system allows you to change the force required to move the object. For example, a two-wheel pulley system is especially useful for reducing the effort required to lift large objects. The mechanical advantage increases with the number of wheels in the system. In addition, the mechanical advantage of a two-wheel pulley system depends on the ratio of the load weight to the number of rope segments in the system.


In most cases, an idler replacement will cost around $150, but the exact cost will depend on several factors, including the make and model of the car. The cost also depends on the type of idler you need and the cost of the OEM parts. Some pulleys are easy to replace at home, while others require specialized tools, such as pulley wrenches. The chart below shows the cost of popular vehicles. Prices are valid at the time of writing.
The diameter of the pulley is also important, this should be about 60% of the diameter of the active pulley. You can also purchase compensating pulleys at factory prices. Be sure to select the correct size before placing the pulley on the machine. Also, make sure you have enough space for the pulleys. Once you have the desired pulley size, you can determine the best type of belt to install.
While this method is the most common type of belt drive, there are other methods of spinning cup blanks directly from a flat metal disk. One such method is described in US Patent No. 5,500,31. US Patent No. 1,728,002 and shows a method of making a dynamically balanced V-groove pulley. Using a headstock die with sliders increases the cost of the pulley. In addition, different cup blanks require different molds.


The lubrication of pulley bearings is relatively simple. The pulley itself rotates smoothly with little vibration. Bearing contact loads are relatively low, and well-lubricated pulleys operate near ambient temperatures. Here are some tips for properly lubricating pulley bearings. Make sure to lubricate the nozzle before applying grease.
Check grease, elastic ring, pulley bearing clearance once a year. If the elastic ring of the pulley is damaged or the roller bearing on the associated pulley is damaged, replace the pulley. Also, check the running noise of the pulleys to see if they are making noise. Check the bearing, damage to the elastic ring may indicate bearing failure or roller failure.
Proper lubrication is critical to the life of the rotating pinion. Avoid exposure to sunlight or water. Protects the pinion meshing area from hard impurities. Liaise with crane operators and lubricators during maintenance and lubrication operations. They should know how to avoid pitfalls in the lubrication process. In case of malfunction, please contact service personnel and take necessary measures.

Compound Pulley System

A compound pulley system is used to lift heavy objects. These systems can use ropes or cords of different sizes. In general, the total weight of all ropes must be less than the weight of a single rope. The system can be used in large areas, but may not be suitable for smaller spaces. To learn more about compound pulleys, read on! Here are some helpful tips. 1. Understand the difference between single wheel and compound wheel
A composite pulley system consists of 3 components: a drive pulley, 1 or more driven pulleys, and 2 pulleys. The drive wheels are usually connected to shafts that are connected to the engine or transmission. The driven wheel is a separate unit mounted on the same shaft as the drive wheel. A compound pulley system helps lift heavy loads. These pulleys are the most common type of pulley system in use today.
Composite pulley systems are widely used on construction sites. They save energy by spreading the weight of heavy loads over multiple smaller loads. This means that the elevator does not have to use high-capacity lifting equipment. Additionally, the compound pulley system allows users to easily adjust power distribution to meet their individual needs. They can also use more than 2 ropes if necessary. This increases the range of motion of the lift arm.

China Best Sales Agriculture Low Cost Multi-Span Plastic Film Greenhouse for Salad     near me shop China Best Sales Agriculture Low Cost Multi-Span Plastic Film Greenhouse for Salad     near me shop