TOPXGUN AGRI ACADEMY

In this tutorial, we will learn some tips on how to clean agri drones' Battery Anti-Spark Circuit to prevent ignition. The detailed procedures are as follows:

We wil wire up the plug of two centrifugal nozzles to prevent dust and water which might cause short-circuit, if there is no pair of plugs we can use tape to wrap the plug completely for protection.

After the operation we have to check whether there is dust, fertilizer or rust on the anti-ignition module, we can use WD40 to clean.

Then we use non-woven cloth to wipe it to ensure that each pole piece is cleaned in place to prevent rust.

Short-circuit ignition situation, even serious safety hazards may happen if the module is not cleaned up in time.

When the drone is being used and the propellers can't be unfolded, the motors are stuck, be sure to follow these instructions.

When the propeller is  either too loose or too tight, we can loosen the propeller's fixing screws a little and then spray some WD40, likewise do the same for the other side of the propeller.

Then pinch the propeller clamp, up and down to move the blade when there's no gap, in accordance with the e blade leading edge movement within 30 degrees smooth.

Spraying WD40 is only a temporary solution, if you want to maintain long-lasting smoothness, grease is a good choice and the lower limit of the temperature of it is at minus 20 degrees Celsius, the higher the upper limit of the temperature, the better, we choose to use grease which has the upper limit of the temperature of 60 degrees Celsius.

Detailed procedures are as follows:

Remove the clamp screws, remove the paddle clamp internal wear-resistant gaskets, front and back side of a small amount of grease, and then will be coated with grease paddle installed in the paddle clamp, fixed paddle clamp screws, other paddles are all in accordance with this operation.

The checking method is the same, pinch the paddle clamp, up and down to move the paddle paddle till there's no gap, lubricate according to the paddle leading edge of the movement of 30 degrees within the range of smoothness.

Normally when the drone is in use, we should also carefully checked the wear and tear of the propeller and clamp wear gaskets.

TOPXGUN AGRI ACADEMY

In this tutorial, we will learn some instructions on switching spreading mode and drone spraying mode.

When switching spraying and spreading mode, some clients remove the sealing ring for the convenience of connecting the adapter cable, which may cause a short-circuit situation, actually the sealing ring has a waterproof role.

If the connection is not smooth, you can apply a small amount of grease.

After replacing the broadcast, the connecting wires of the front and rear centrifugal spray nozzles should be docked to prevent dust from entering when broadcasting, resulting in malfunctioning of the interface after switching sprays.

When flushing the aircraft, spraying or broadcasting near the HUB board, be sure that the interface is plugged in before flushing to prevent damage caused by loose water ingress.

In China's tea-growing regions, many farmers face the difficulty of transporting fertilizer to tea trees planted on steep slopes. Traditional manual carrying methods are not only time-consuming and labor-intensive but also inefficient. To address this issue, Topxgun has organized a team to provide transportation services to tea farmers.

One tea farmer shared, "The walking distance is about 300 meters. If carrying a bag of fertilizer manually, it takes at least 30 minutes for a normal worker to reach the top. The first trip takes half an hour, and the second trip takes at least 40 minutes. As people get tired, manual labor becomes difficult."

Topxgun's YP600 delivery drone, equipped with a maximum payload of 50kg, efficiently transports fertilizer to the mountain top. Upon arrival, the fertilizer automatically detaches, and the drone quickly returns to pick up the next load. Compared to manual carrying, using the YP600 delivery drone not only increases efficiency but also reduces labor costs. 

Topxgun is dedicated to applying drone technology in agriculture to solve practical problems for farmers. By providing efficient and intelligent solutions, Topxgun's team helps farmers improve productivity, reduce costs, and promote agricultural modernization.

For more information about Topxgun's drones, visit their official website: https://www.topxgunag.com

To see the YP600 drone in action, watch the following video: https://www.youtube.com/watch?v=tuoakgEw5cE

AgroExpo is one of the most important agricultural events in Latin America, bringing together farmers, technology providers, and industry leaders from across the region. This year's edition, held in Bogotá, Colombia, once again became a hub for innovation and exchange of ideas about the future of agriculture.

Our partner in Colombia took part in AgroExpo 2025, showcasing how agricultural drones are transforming the way crops are managed in the country. With Colombia's diverse geography, from the coffee-growing highlands to tropical fruit plantations and extensive livestock areas, precision agriculture is becoming an essential tool to optimize resources and improve productivity.

Colombia's agriculture is characterized by a wide variety of crops, including coffee, sugarcane, bananas, rice, maize, and tropical fruits such as mangoes and avocados. Each of these crops presents unique challenges for pest control, fertilization, and yield management. In steep terrains or areas with limited access, traditional ground machinery often falls short.

This is where agricultural drones, like the FP series agri drones from Topxgun, bring real value. They allow farmers to apply pesticides and fertilizers precisely, even in hard-to-reach areas, while reducing water and chemical waste. The flexibility and efficiency of drones are proving especially useful in Colombia's mountainous and tropical regions.

At AgroExpo, our distributor presented Topxgun drones to local farmers and industry professionals, sparking conversations about how UAV technology can be adapted to Colombian conditions.

Exposoya, one of Bolivia's most important agricultural exhibitions, once again brought together farmers, researchers, and technology providers to share innovations that shape the future of farming. This year, our local distributor participated in the event, showcasing two of TopXGun's advanced agricultural drones: TopXGun FP500 and FP300E ag drone.

These drones attracted strong attention from growers looking for smarter solutions to improve efficiency in crop management. With large-scale soybean production being a key sector in Bolivia, the demand for precision agriculture tools is rapidly growing.

FP500 Agri Drone: Built for large fields, this drone provides powerful spraying capacity, stable performance, and reliable operation, making it an excellent choice for high-demand farming.

FP300E Agri Drone: Compact, efficient, and easy to operate, this model offers flexibility for small and medium-sized farms, helping more growers access the benefits of drone technology.

Hungary has always been a country shaped by its fields. From the Great Hungarian Plain to the hilly regions of Transdanubia, agriculture remains a central part of the economy and daily life. More than half of the country's land is used for farming, and crops like wheat, corn, sunflower, and barley continue to dominate the landscape. Yet in recent years, Hungarian agriculture has been going through a noticeable shift: farms are becoming more digital, more precise, and more focused on efficiency.

Hungarian growers face many of the same challenges seen across Europe - labor shortages, rising input costs, unpredictable weather patterns, and the pressure to produce more with fewer resources. At the same time, there is strong motivation to modernize. The government and various EU programs have been encouraging the adoption of smart farming tools, and young farmers in particular have shown interest in new technologies.

As a result, digital agriculture - once a niche topic - is becoming a real part of day-to-day farm management. Drones, sensors, automated tractors, and data-driven decisions are no longer futuristic concepts. They're tools farmers are beginning to rely on.

Agricultural drones are gaining traction in Hungary for three main reasons: they save time, reduce input waste, and help farmers manage larger areas with greater precision. In practice, their use falls into a few important categories:

1. Crop Spraying and Fertilizer Application

Aerial spraying drones are especially useful for areas that are difficult to reach with tractors - wet soil, uneven plots, or places where ground machinery causes crop damage. Models like the TopXGun FP700 agri drones offer high-capacity spraying and strong adaptability to local terrain, making them a good fit for Hungary's mixed crop structure.

2. Spot Treatment and Small-Plot Management

Hungary has many mid-size and small-scale farms, where precision matters more than sheer volume. In these cases, lighter and more flexible drones such as the TopXGun FP300E agri drones are well suited for targeted spraying, pest control, and applications that require careful control.

A few years ago, agricultural drones were still new to many Hungarian farmers. But the shift is speeding up because:

1. Regulations are becoming clearer, especially around drone operation and crop protection use.

2. Dealers and training centers are expanding, giving farmers easier access to support.

3. Farmers talk to each other, and many early adopters have shared strong results: lower chemical use, faster operations, and less labor dependency.

At TopXGun, we've seen a rising number of local partners and growers asking about practical, durable equipment - machines that can perform reliably through long seasons and varied field conditions. Both the FP700 and FP300E have been part of these conversations, especially in vegetable, orchard, and large-scale row crop applications.

Hungary's agricultural sector may not change overnight, but it's clearly moving toward a smarter, more efficient future. Drones won't replace traditional machinery, but they're becoming a valuable complement - taking over tasks that are time-consuming, labor-intensive, or require high precision.

As drone usage continues to grow, TopXGun will keep working with local partners to bring solutions that fit the needs of Hungarian growers - reliable tools that help them manage their fields with confidence.

Since its launch in 2024, TopXGun FP300E agri drone has been recognized as a reliable and efficient agricultural drone. In 2025, it gets even better. With key upgrades to its radar system, flight control, and night operation capabilities, the new FP300E is built to handle complex environments, more efficient operation and precision farming.

1. Smarter Sensing with New 4D Imaging Radar

Precision begins with perception. The upgraded FP300E now features an advanced 4D imaging radar that offers improved obstacle detection and terrain following. It can sense objects up to 150 meters ahead. This enables safer, smoother flights across various kinds of terrain, helping operators fly with confidence.

2. Enhanced Flight Control for Greater Reliability

At the heart of every stable flight is a dependable control system. FP300E comes with an upgraded flight control module and a fully modular design, making maintenance faster and easier. With an IP67 protection rating, the drone is highly resistant to pesticide and fertilizer corrosion, ensuring long-term durability in tough field conditions. A range of built-in safety features also makes every operation more secure and reliable.

3. Ready for the Night Shift

Agriculture doesn't stop when the sun goes down, and neither does the FP300E. The upgraded version introduces enhanced night operation support, featuring a full-color low-light FPV camera and powerful 80W spotlights. Whether you're working at dusk, dawn, or under cloudy skies, you get clearer visuals and smoother control to finish the job efficiently.

With these new upgrades, the FP300E remains a compact yet powerful solution for precision agriculture. Ready to experience the new FP300E? Contact us to learn more or get in touch with your local distributor.

You make injection molded magnets by mixing magnetic powder with a polymer binder. Most companies use a mix from 85:15 to 95:5 by weight. This mix gives strong magnet power and good strength. You get the materials ready, mix them, and put them in molds. You can make magnets in many shapes and sizes. You get a product that fits special needs and has exact properties.

• Typical composition ratios:

  • 85:15 magnetic powder to polymer binder

  • 95:5 magnetic powder to polymer binder

What Are Injection Molded Magnets

Key Characteristics

Injection molded magnets are special because of how they are made. You mix magnetic powder with a thermoplastic resin. Then you put the mixture into a mold to shape it. This way, you can make magnets with tricky shapes and exact sizes. These magnets are different from other types. Look at the table below to see the differences:

Injection molded magnets have many good physical and magnetic features:

• They can be made with very exact sizes, even up to 0.01mm.

• They are strong and do not break or twist easily.

• They last longer in tough places because they resist chemicals.

• You can pick neodymium or hard ferrite materials.

• Neodymium magnets do not need extra coatings since they protect themselves.

• You can make any shape and choose how the magnet works, like isotropic injection molded neodymium magnets.

• These magnets work well, are light, and look smooth.

Tip: You can use injection molded magnets when you need to make a lot of parts. You can also put them right onto other pieces.

Common Uses

Many industries use high temperature resistant injection molded magnets because they are flexible and dependable. Here are some ways they are used:

You will see these magnets in tiny motors, machines that work by themselves, and electronic gadgets. They work well and can be made in many shapes, so they are great for new technology. You can trust them to stay strong during earthquakes and to work the same way every time, even in tough places.

Materials for Injection Molded Magnets

Magnetic Powders

You must pick the right magnetic powder. The powder you choose affects how strong your magnet is. It also changes how the magnet works in different places. Here are the main powders you can use:

• Ferrite

• NdFeB (Neodymium Iron Boron)

• SmCo (Samarium Cobalt)

Each powder is good for different things. Ferrite is cheap and works for simple jobs. NdFeB makes very strong magnets for tough tasks. SmCo is best when you need magnets that work in high heat.

How much magnetic powder you use matters. If you use less powder, the magnet is not as strong but it is tougher. If you use more powder, the magnet does not get much stronger and can break more easily.

Polymer Binders and Additives

You mix the magnetic powder with a polymer binder. The binder keeps everything together. It helps you shape the magnet and makes it last longer. Solid epoxy resin is used a lot because it is easy to mold. But epoxy does not work well in high heat or with chemicals. Polyamide 12 (PA12) lets you add more powder, so the magnet works better. Polyphenylene sulfide is good for hot places, but you cannot add much powder. Polyether Ether Ketone is great for very high heat and meets tough aerospace rules.

Additives help with mixing and molding. First, you blend the powder and binder to get the right flow. This careful mixing helps you make magnets with the shape and strength you want.

Manufacturing Process

Making injection molded magnets has many steps. You must follow each step closely. This helps the magnets have the right shape and strength. It also makes sure they work well. This process lets you make lots of magnets at once. You can also make magnets with tricky shapes.

Mixing and Granulation

First, you mix magnetic powder with a thermoplastic binder. Mixing is important because it makes the blend even. If you do not mix well, the magnets will not work right. Special machines help with mixing. Here is a table with common machines:

After mixing, you break the blend into small pieces. These pieces are called granules. Granules move easily into the mold.

Tip: Good mixing and granulation stop weak spots from forming in your magnets.

Mold Design

Mold design decides the magnet’s shape and how it works. You need to focus on this step. Here are some things to remember:

• Careful cutting of mold spaces helps you get exact sizes.

• Good mold design spreads the material evenly. This makes magnets stronger and lowers defects.

• You can set the magnet’s direction during or after molding.

A smart mold design lets you make magnets with special shapes and sizes. You can also make sure every magnet fits your needs.

Injection Molding Steps

Next, you heat the granules until they melt. Then you push the melted mix into the mold. The mold gives the magnet its final look. You can use two molds for harder designs or extra features.

Temperature and pressure are very important here. Here are some key points:

• More pressure helps fill thin or long molds faster. It also cools the magnets quicker.

• The polymer melt must stay hot enough. This helps make thin parts.

• Rapid Temperature Cycling (RTC) can heat the mold fast. Sometimes it heats up by 200 °C in seconds. This makes the process quicker.

You can make many magnets at the same time. This is good for making lots of magnets.

Cooling and Demolding

After molding, you cool the magnets down. Cooling keeps their shape and strength. You must watch the temperature to stop problems. Here is a table with things to manage:

When the magnets are cool, you take them out of the mold. This is called demolding. If you do this too early or late, the magnets might crack or bend.

Quality Control

You want every magnet to be good. Quality checks help you find problems early. Here is a table with main checks:

You may face some problems while making magnets. High costs, strict rules, and supply issues can slow you down. Some places do not know much about injection molded magnets. This can make starting hard.

Note: Making injection molded magnets can affect the environment. You should think about energy use, safe materials, and recycling. Many companies now use green methods to help the planet.

Every step in making magnets is important. Careful planning helps you make strong magnets for many jobs.

Custom Injection Molded Magnets

Design Flexibility

You can make custom complex shape injection molded permanent magnets. This helps you match the magnet to your product’s needs. You might want a ring or a tricky 3D shape. Both are possible with this method. The table below lists some ways to customize magnets:

You can ask for any shape or size you want. If you do not have a drawing, the maker can help you design one. They can also give you samples to test. This freedom lets you make products that work better and look nicer.

Tip: Custom injection molded magnets let you mix features in one part. This makes designing easier.

Production Scale and Efficiency

You can make lots of custom high tolerance injection molded magnets at once. The process works for small or big orders. Every magnet looks and works the same. This helps your devices work better. You save time and money because the process is quick and uses less material. Many companies pick this way when they need many strong magnets.

Enhanced Properties with Additives

You can add special materials to make magnets work better. For example, mixing 65% isotropic NdFeB powder with 35% polyamide (Nylon-12) makes strong magnets. These extras help you get the right mix of strength and flexibility. You can also make magnets that handle heat or tough places. Additives and smart mold design help you make magnets for special jobs, like medical tools or electric motors. This helps you get the best results for your needs.

Advantages of Injection Molded Magnets

Precision and Complexity

Injection molded magnets can be made very exact. You can create shapes with lots of detail. These magnets fit into devices without problems. The process repeats the same shape every time. This means you do not get mistakes. Check the table to see how these magnets compare to older ways:

Tip: You can make special shapes for electronics and medical tools.

Cost-Effectiveness

Using injection molded magnets helps you spend less money. Making them uses less energy. There is not much waste. You can use recycled stuff in the binder. This helps the planet. Here are some reasons why this way saves money:

• Uses less energy

• Makes less waste

• Can use recycled materials

• Mixes magnet and plastic molding together

See the table to compare with other magnets:

Note: You can mold magnets onto other parts. This saves time and makes building easier.

Versatility

Injection molded magnets work in many places. You can pick from lots of materials. Some choices are ferrite, neodymium, and samarium cobalt. You can also choose polymers like nylon or PPS. This helps you match the magnet to your job. Here are some ways people use these magnets:

1. Cars: Sensors, motors, and actuators

2. Electronics: Speakers, sensors, and tiny motors

3. Medical: MRI machines and surgery tools

4. Factories: Magnetic pumps and couplings

5. Planes: Navigation and control systems

You can make magnets that are light and strong. They do not rust and work in hard places. This makes it easy to find the right magnet for your project.

You make injection molded magnets by mixing magnetic powder and a polymer binder. Then you put the mix into molds to shape them. After that, you cool the magnets so they become strong. This way, you can make magnets in many shapes and sizes.

• These magnets do not rust easily and are always the same.

• You spend less money because there is little waste and the process is quick.

• You can design magnets for special uses, even if you need exact sizes.
  If you want magnets that are both exact and flexible, this method is a good choice.

What are the requirements for the positioning of the impeller of the multi-stage mid-open pump?

The impeller positioning of multi-stage horizontal split pump is the core key step in the assembly process, which is directly related to the running efficiency, vibration noise and service life of the pump. The core goal of the positioning is to ensure that the exit center of all impellers is in a straight line and the inlet center of the guide vane is aligned.

The following are the detailed multi-stage middle open pump impeller positioning method, steps and matters needing attention.

1、 Core Principle

The position of each impeller in the multi-stage pump is not fixed by the axial distance of the bushing, but by the axial total displacement of the rotor.

The total axial displacement of rotor components refers to the axial movement distance of the entire rotor (including the shaft, all impellers, balance disc, etc.) from one extreme position to the other extreme position without installing thrust bearings.

The purpose of positioning is to ensure that the axial thrust caused by temperature rise and pressure during pump operation will not cause friction between the impeller and stationary components (such as pump casing and inlet ring). It also ensures the alignment of the impeller outlet with the guide vane inlet at each stage to achieve better hydraulic performance.

2、 Location methods and procedures

The "rotor trial fitting method" or "measurement and calculation method" is commonly used, both of which are fundamentally similar. Below are the detailed steps combining both methods:

Step 1: Preparation and Initial Assembly

Cleaning and Inspection: Thoroughly clean all pump components including the shaft, impellers, bushings, and balance discs, ensuring no burrs or damage.

Measure the impeller width and sleeve length separately (if applicable) and record the data. This will facilitate cross-validation in subsequent steps.

Initial assembly: Install the first-stage impeller, subsequent impellers, shaft sleeves, and balance discs sequentially onto the pump shaft. Do not tighten the fixing nuts (e.g., balance disc nuts) initially, allowing all components to maintain axial sliding relative to the shaft.

Step 2: Measure the total rotor clearance

The assembled rotor (without bearings) is hoisted into the lower half of the pump housing.

A dial gauge is installed at one end of the pump shaft (usually the drive end), with its head pointing toward the shaft's end face, to measure axial displacement.

Manually push the entire rotor toward the pump's drive end (DE) until it can no longer be moved (e.g., when the first-stage impeller contacts the pump body). Then, reset the dial gauge to zero.

Manually pull the entire rotor toward the non-driving end (NDE) of the pump until it can no longer be moved (e.g., when the final-stage impeller or balance disc contacts the pump body). The dial gauge reading at this point is the 'total rotor runout.' Record this value as S_total.

To ensure accuracy, perform multiple push-pull cycles and verify the stability of the dial gauge reading.

Step 3: Align the impeller position

After the total run-off is measured, the ideal working position of the impeller should be in the middle of the total run-off.

Calculate the center position: Push the rotor to the midpoint of the total stroke. For example, if the total stroke S_total is 4.0 mm, the center position is 2.0 mm from the driving end's limit position to the non-driving end.

Verify alignment (core check):

Method A (traditional method): Using a feeler gauge or long feeler gauge, measure the gaps between the center of each impeller outlet and the corresponding guide vane inlet center in all directions. Under ideal alignment, these gaps should be essentially equal. If the gap deviation of any stage is excessive, it indicates that the axial position of that impeller stage is incorrect.

Method B (marking method): On the middle plane of the pump body, mark the center of each guide vane inlet with red lead or marker pen. Then rotate the rotor to check if the outlet edges of each impeller align with these marks. This is the most intuitive and effective method.

Adjustment: If misalignment is detected, it may require fine-tuning the bushing length or inserting shims between the impeller hubs. For mature designs, this step is usually unnecessary, as proper total runout ensures natural alignment.

Step 4: Fix the rotor and set the working stroke

After the center position is determined, the rotor component must be locked in this relative position.

Fixed balance disc: When the rotor is aligned, tighten the locking nut on the balance disc. This is a critical step to secure the relative position of internal rotor components. After tightening, recheck the total runout to ensure it remains essentially unchanged.

The thrust bearing is installed to give the rotor a predetermined position and to bear the residual axial force.

Set the working stroke:

After the installation of thrust bearing, the axial movement range of the rotor will be limited, and the limited movement range is called "working clearance".

Typically, the working clearance is set to approximately half of the total clearance (for example, 2mm when the total clearance is 4mm), with equal gaps maintained on both sides (toward DE and NDE).

The axial movement of the rotor should be within the working stroke range when the rotor is rotated, which can be verified by dial indicator.

III. Key Considerations

1. Cleaning and Lubrication: All mating surfaces and O-rings must be thoroughly cleaned and coated with a suitable lubricant (e.g., molybdenum disulfide) to facilitate assembly and prevent seizing.

2. Marking and recording: All measured data, including total stroke and working stroke, should be meticulously documented for future maintenance and fault analysis.

3. Symmetrical tightening: When closing the pump cover, the bolts on the middle opening face should be tightened symmetrically according to the manufacturer's specified sequence and torque to prevent pump housing deformation.

4. Handwheel Test: After final assembly, manually rotate the rotor to verify smooth and uniform rotation without any friction or jamming.

5. Adhere to manufacturer specifications: Different pump models may have unique designs and requirements. The above methods are general guidelines, but in practice, the manufacturer's installation and maintenance manual should be the primary reference.