China OEM T72 New 8-Axis Agriculture Drone Sprayer 72L Spraying Pump System Waterproof Drone Agriculture Pesticide Sprayer near me factory

Product Description

Product Description

Product material

Aviation carbon fiber + aviation aluminum

Max. extended size

3920mm* 3920mm* 850mm

Arm folded size

1050mm* 900mm* 2000mm

Packaging size

2571mm* 1060mm* 950mm

Maximum takeoff weight

200 KG

Aircraft weight

51 KG

Pesticide barrel

72 L

Flight altitude

≤20 meters

Fly time

7~20 minutes (unloaded)

10~13 minutes when fully loaded (loaded)

Flight speed

1-10 m/sec

Structure lift span

≥10 years

Hovering in the air

Hovering in any direction

Spray width

8~20 meters

Spray flow

8-15 L/min

Spray system

Imported high pressure anti-floating atomizing nozzle

Spray efficiency

≥28 hectares/hour

Atomization point size

110~400 μm

Fly control

Industrial Version GPS and Controller

Safe takeoff and landing wind speed

≤ Level 5

Power system

60.9V power polymer computer battery


AC Input 100-240V

Lithium - polymer battery

42000 mAh* 2



·Efficient ·Stable ·Easy to use ·Durable

Strength comparison

Suitable for spraying all kinds of crops and fruit trees; Fish and shrimp feed sowing:

Compared with artificial, UAV sowing feed is more time-saving,labor-saving and material-saving.

UAVs are also widely used in pest control and disease control:

Detailed Photos


1.Remote Controller H12: Smart operating system 5.5-inch high definition screen.

2.42000mAH Smart Battery: Energy saving, high redundancy - full load flight after a barrel of medicine battery remaining about 30%-40%.

3.Fast Charge Four Port Charger: Shorten the charging time to 30 minutes realize cyclic work.

4.Intelligent Flight Control: Achieve full autonomous operation.

5.High-pressure Atomization Nozzle: Excellent work efficiency, achieve rapid spraying of 28 ha/hour.

6.Obstacle Avoidance Radar: Scan for obstacles within 15 meters ahead; Realize fast and accurate braking.

7.Terrain Following Radar: Real-time monitoring of terrain and quick response.

8.Power System: X10 motor have a quick and sensitive operating experience.Help drone spray evenly and efficiently.


Company Profile

Why Choose Us

1> Our service network is sufficient to guarantee the needs of our customers, a perfect and continuous solution can guarantee the needs of most customers.

2> One-stop sourcing provides you with a perfect supply chain of plant protection products, saving your purchasing cost and time cost with high efficiency and quality. You can also enjoy our long-term technical consulting services.
3> We support OEM/ODM service to meet your special needs.
4> Price, information, quality, program, after-sales, a full range of standardized support services for our agents to win more opportunities and competitiveness, making cooperation so easy and efficient.
5> Based on the absolute advantage of factory network, we have long-term cooperation with logistics, which can make the products delivered faster and more efficiently.
6> We will provide the best after-sales service for our customers. You are welcome to visit our factory and receive after-sales service training. No matter what, we will try our best to meet your requirements.

Haojing International Trade Co., Ltd.

Haojing Electromechanical is a well-known brand manufacturer in China for many years, established in 2003, our factory is located in ZheJiang , China, with a stable and highly skilled workforce, we are a high-tech enterprise in China ,we are a professional plant protection solution provider.
We specialize in agricultural plant protection drones and plant protection application solutions. We insist on using high quality key components to ensure stable and reliable product quality.
Our products have passed ISO certification and CE certification and have a number of patent certificates. We have a professional R&D team and a strong after-sales service team to provide customized solutions for our customers, and we also have rich experience in OEM and ODM. We have a perfect and continuous service program from product solution design and production, to transportation, installation and commissioning, and then to after-sales service. With our business philosophy of service first and quality first, we are committed to providing professional solutions for our partners in the plant protection industry and creating a perfect supply chain of plant protection products.
Our products are sold well in China and exported all over the world, including the United States, Mexico, Russia, Portugal, Turkey, Pakistan, Korea, Japan and Indonesia, and we have covered distributors and agents in many European countries, we have gained the satisfaction of our customers for the quality of our products and services.
We have established long-term relationships with our suppliers and have absolute advantages in terms of price and delivery.
We can provide you with unique products that are not only attractive, but also practical and competitive.
Welcome more partners to join us.

Packaging & Shipping


1. Who are we? We are an integrated factory and trading company, with our own factory production and 65 CNC machining centers. Our customers are all over the world, and we have expanded many categories according to their needs.  
2. How can we guarantee quality? We have a special quality inspection department before we leave the factory, and of course it is very important that we will strictly control the quality of each production process throughout the whole production process, so our products can reach a 99.5% pass rate.  
3. What can you buy from us? Professional drones, unmanned vehicles and other devices with high quality.  
4. Why should you buy from us not from other suppliers? We have 18 years of production, R&D and sales experience, and we have a professional after sales team to support you.  
5. What services can we provide? Accepted Delivery Terms: FOB,CIF,EXW,FCA,DDP; Accepted Payment Currency:USD,EUR,CNY; Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card;

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with 2 M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the 2 parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you'll be able to move it around with a stepper.

Angular contact

Ball bearings are made with angular contacts that result in an angle between the bearing's races. While the axial load moves in 1 direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to 5 times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing's axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

Ball bearings are circular structures with 2 separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It's also less resistant to heat than aluminum oxide, so it's best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you'll be able to transfer more energy, have less erosion, and improve the life of your machine. With today's advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it's best to select the right 1 for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between 1 and 5 million rotations. As long as its surface contact area is as small as possible, it's likely to be serviceable for at least 1 million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

The basic principle behind sliding-contact bearings is that 2 surfaces move in contact with 1 another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn't run in a bronze-lined bore, or vice versa. Instead, 1 element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their 2 surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in 2 different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the 2 elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

China OEM T72 New 8-Axis Agriculture Drone Sprayer 72L Spraying Pump System Waterproof Drone Agriculture Pesticide Sprayer     near me factory China OEM T72 New 8-Axis Agriculture Drone Sprayer 72L Spraying Pump System Waterproof Drone Agriculture Pesticide Sprayer     near me factory