What kind of dirt can be cleaned by automatic sandblasting machine?

With the continuous development of technology, automatic sandblasting machine is widely used, which brings great convenience to people’s production and life. The automatic sandblasting machine has the function of cleaning up the dust. Below, I will introduce what kind of dirt the automatic sandblasting machine can clean.

1. The surface cleaning and strengthening of various parts and the cleaning of tools and materials are inseparable from the sand blasting machine.

2. The sand blaster machine can clean equipment, utensils, molds, pipes and other objects.

3. The automatic sandblasting machine is also inseparable for the cleaning of glass film, rubber molds and metal workpieces.

4. The sand blaster machine can also trim the welds, especially the concave corners that are difficult to clean.

5. It is very important to remove the paint on the workpiece and clean the oxide scale on the surface of the workpiece.

6. Remove rust, carbon deposits, welding slag and splashes, old coatings, and dry oil stains on the surface of metal products; improve the surface roughness of metal products to improve the bonding force between the coating and the substrate.

The mobile sandblasting equipment realizes automatic sandblasting through the electrical control system, which can automatically adjust the blasting angle, blasting time, blasting distance, back-blowing time, spray gun movement, and table rotation speed. The portable sand blasting machine is to use the low-temperature freezing effect of liquid nitrogen to embrittle rubber-plastic alloy materials. At this time, the burr is embrittled before the product. In the time difference between the burr and the product is not yet embrittled, a high-speed jet is used Macromolecule particles hit the product burrs to remove high-quality burrs from rubber-plastic alloy products and aluminum and zinc alloy products. There are two types of sandblasting, dry sandblasting and wet sandblasting, for the purpose of sandblasting.

How to choose practical sandblasting equipment?

When choosing sandblasting equipment, we must be cautious. After all, the concept of buying clothes is completely different. Clothes can be returned, but sand blaster machines cannot. Therefore, we must be careful when selecting the sandblasting machine. So how to choose a practical sand blaster machine? Let me tell you the following.

1. If you want to buy suitable and practical sandblasting equipment, you must first shop around. It is necessary to compare all aspects before choosing the right sandblasting machine.

2. Many sandblasting machines on the market sound familiar, because there are too many advertisements. And when we choose, we can’t easily believe in advertising, we must pay attention to product quality and after-sales issues.

What equipment is needed to drill a water well?

For the drilling rig industry, there are many categories, regardless of which they belong to. Small water well drilling rigs, which are used in the field of household water wells, are nothing more than small water well drilling rigs. Because of their lightness and ease of movement, they can drill into rocks, pebbles, granite, etc. The hard texture layer is deeply loved by the majority of friends. Although small water well drilling rigs, its efficiency is also very high. No matter what kind of formation it is, small water well drilling machine can easily deal with it, and all can be drilled. Depths from 10 meters to 200 meters can be competent. And the construction is simple, easy to operate, convenient to move and other properties.

Features of water well drilling machine:

1. The engine uses a 56Kw turbocharged engine;

2. Traveling device: Traveling motor with gear box, durable and long life;

3. Hydraulic oil pump; Parallel gearbox design (patent) separate oil pump units, sufficient power supply and reasonable distribution, unique hydraulic system design, simple maintenance and low cost;

4. Power head device; integrated casting of gearbox, dual motors to provide power, large torque, durable, low maintenance cost;

5. Drill chassis; professional excavator chassis, durable, large load-bearing, wide chain plate, little damage to hard roads;

6, Lifting force; patented design composite boom, the boom is small in size, long stroke, double cylinder lifting, lifting tonnage is large;

7. Each rig lifting boom is equipped with a stopper to protect the safety of the oil cylinder and ensure the safety of work;

8. Each hydraulic oil pipe is covered with a protective jacket to make the service life of the oil pipe longer.

The water well drilling machine is not only used to drill water wells, but also widely used in geological survey and exploration, road and high-rise building foundation exploration, shallow oil and natural gas extraction, mine tunnel construction, drainage… Customers who want to invest in water well drilling rigs can have a wider range of options with sufficient funds. When choosing a machine, users must first check their own construction environment before choosing the machine. If the construction conditions are bad, the chassis of the rotary drilling rig should be crawler, and if the road conditions are good, you can choose a wheeled water well drilling machine. Also consider the size of the selected water well drilling machine according to the width of the construction environment, so that you can really spend the right money to buy a machine that suits you.

What is the difference between Shot Blasting Machine and Sandblasting Machine?

The shot blasting machine uses a high-speed rotating impeller to throw small steel shots or small iron shots out to hit the surface of the part at high speed, so the oxide layer on the surface of the part can be removed. At the same time, steel shot or iron shot hits the surface of the part at a high speed, causing the lattice distortion and deformation of the surface of the part, which increases the surface hardness. It is a method of cleaning the surface of the part. The shot blasting machine is often used to clean the surface of the casting or the surface of the part. Strengthen processing.

The sandblasting machine is a method that uses compressed air to blow out the quartz sand at high speed to clean the surface of the part. It is also called sand blowing in the factory, which not only removes rust, but also removes oil by the way, which is very useful for painting. It is often used to remove rust on the surface of parts; to modify the surface of parts (the small wet sandblasting machine sold in the market is for this purpose, the sand is usually corundum, and the medium is water); in the steel structure, the application of high-strength bolts for connection is a relatively advanced Because the high-strength connection uses the friction between the bonding surfaces to transmit force, the quality of the bonding surface is very high. At this time, the bonding surface must be treated with sandblasting.

Floor shot blaster uses a high-speed rotating impeller to throw out abrasives; sand blasting machine uses compressed air to blow out abrasives at high speed. Of course, it is not necessary to use a high-speed rotating impeller. In shipbuilding and shipbuilding industries, floor shot blasters are generally used for steel plate pretreatment (removing rust before painting); sandblasting equipment (ores used in repairing and shipbuilding industries) are mostly used for shaped ships or sub-materials. The function is to remove the old paint and rust on the steel plate and repaint it. In the shipbuilding and shipbuilding industries, the main function of shot blasting and sandblasting machines is to increase the adhesion of the steel plate coating paint.

Both the shot blasting machine and the sand blasting machine can clean and decontaminate the workpiece. The purpose is to prepare for the next sequence, that is, to ensure the roughness requirements of the next process, and some are for surface consistency. Floor shot blaster It has a strengthening effect on the workpiece, and the sandblasting machine is not obvious. Generally, the shot blasting machine is a small steel ball, and the sand blasting machine is quartz sand. According to different requirements, the number of sub-items. Sandblasting and shot blasting are used in precision casting almost every day.

Floor shot blasters are generally spherical particles without edges, such as cast steel shots, steel wire round shots, etc.; sand refers to angular sand particles, such as cast steel sand, brown corundum, white corundum, river sand, etc.

The sandblasting machine uses compressed air as a power to spray sand or pellets onto the surface of the material to achieve removal and a certain roughness. The shot blasting machine is a method that uses the centrifugal force generated when the shot material is rotated at a high speed to impact the surface of the material to achieve removal and a certain degree of roughness.

Classification of Glove Making Machines

There are many types of gloves on the market, but the production process of gloves of different materials is also different, so how to classify the material of the glove making machine? What are the types of glove manufacturing machines? According to the different materials of the gloves, it can be divided into several types: Nitrile glove making machine, latex glove making machine, PVC glove machine, PE glove making machine, knitted glove machine and so on. You can choose a suitable glove production line according to the investment direction.

Nitrile glove making machine

Process of the nitrile glove production line: The nitrile glove machine uses latex or synthetic rubber as the main raw material and other chemicals as auxiliary materials. It is cleaned with acid and alkali and washed with water. The cleaned model is first immersed in hot water and heated until it is soaked in coagulant and dried. Carry out dipping. After dipping, it is sent to an oven for preliminary drying, flushed with hot water, and then sent to an oven for vulcanization, drying and forming. After the gloves are demolded, they are inflated or filled with water for inspection, washed, dehydrated, and dried, then packaged and sent to the finished product warehouse.

Latex gloves application scope: Nitrile gloves are widely used in housework, electronics, chemicals, water industry, glass, food and other factories, hospitals, scientific research and other industries.

 latex surgical gloves production line

The natural latex glove production line and industrial latex glove production line are designed with the advanced technology and process formula of Japanese and Korean fleece glove production lines. The equipment has a reasonable structure and is suitable for a variety of formulas; automatic flocking/electrostatic flocking can produce single-color and double-color fleece It can also produce imitation Oxford gloves. The products are bright in color and have a high one-time pass rate, which meets the requirements of GB and CE. The latex glove making machine specifications are 70 meters, 90 meters, 110 meters, etc., and can also be designed according to the customer’s production site. ,The company adheres to the principle of reputation, quality and customer satisfaction, sincerely welcome new and old customers to visit and buy, we will serve you wholeheartedly!

Plastic PE Glove Making Machine

Fully automatic plastic film disposable glove production line. During the production process, finished products and waste materials can be separated manually and conveniently-the machine only needs one person to operate. The maximum of 150 pieces/minute has the advantages of long continuous working time, high output and low labor. PE glove making machine can also be equipped with film finger cots and various special plastic products according to customer needs. The whole machine is controlled by the microcomputer touch screen, the three-phase hybrid motor drags the materials, and the automatic counting can set the number of sheets arbitrarily. Various shapes of knife molds can be customized, easy to install and unload.

Plastic glove making machine can be modified to produce plastic gloves, medical finger cots and other related medical and health products. This product is usually used in large hotels, guesthouses, medical and health care, family life, paint protection, beauty salons, gardening work, cleaning work, etc.

Spray Dust Suppression Equipment-Dust Removal Fog Cannon Machine

Fog cannon dust suppression (fog cannon machine) is a special design that can spray a uniform and continuous mixture (water, air, additives) over a long distance, the size of the fog droplets is uniform and controllable, and the jet stream directivity.

Fog cannon dust suppression is the newer and more effective dust control and dust suppression equipment in the world, which can deal with the dust generated by the following working conditions: coal mines, material handling, garbage disposal, construction and demolition, material warehouses, and ports, etc. In addition, this equipment is widely used to reduce urban PM10 and PM2.5, and the dust reduction efficiency is more than 95%.

Dust suppression cannon can achieve the effect of dust suppression by using purified water. If necessary, additives can be added to the water tank to reduce the surface tension of the water and change the hydrophilicity, so as to prevent the dust from being charged with static electricity, so as to realize the integration of fine dust into the water droplets. Naturally, fall to the ground through gravity to achieve dust reduction. Once the mixture of dust and water hits the ground, a solidified substance will be formed on the surface, and the dust will solidify under it to avoid secondary dust.

Features of fog cannon machine:

1. Strong skill, long-range, wide-coverage, accurate spraying can be achieved; high working efficiency and fast spraying speed.

2. When spraying water to remove dust in a storage yard that is easy to cause dust, the sprayed mist particles are small, and when they come in contact with the floating dust, a moist mist is formed, which can quickly suppress the dust from sinking.

3. The supporting power is flexible, and it can be supplied with three-phase 380V city electricity or diesel generator set.

4. It can be fixedly installed on a concrete pouring platform, or it can be installed on a transportation vehicle with a diesel generator set for power supply.

5. Flexible operation, safe and reliable to use, remote control and manual control operation, can control and adjust the horizontal rotation spray angle at will.

6. Compared with other dust suppression spraying equipment, the water consumption can be reduced by 70% to 80% (spray gun, sprinkler locomotive), and the dust area covered by water mist is much larger than other dust suppression spraying equipment.

Application scope of fog cannon machine:

Open-pit material storage yard, coal logistics park, open-pit mine mining, open-pit blasting dust, closed unloading area, truck unloading port, dump truck unloading dust, large-scale loading truck working dust, coastal port loading, and transportation, transshipment of coal, ore, bulk powder Dust pollution control such as material handling. Mist cannons machine is dust suppression equipment that is often used recently on construction sites. Control of dust from building construction demolition, unloading of construction waste or waste residues and shipping, local dust control of mechanical operations, and control of road dust pollution during heavy-duty vehicle transportation. Airfields, highways, stations, docks, public places, sports venues, hot venues, etc., reduce dust, moisturize, and disinfect.

What are the advantages of the intelligent atomization disinfection door?

The smart disinfection door is an automatic induction spray. The device is equipped with a microwave moving object sensor. After detecting someone entering, it will automatically start the fog machine and spray the disinfectant into the disinfection channel.

The intelligent disinfection door is an access control terminal based on a face recognition algorithm and infrared thermal imaging temperature measurement algorithm. It has binocular live body anti-counterfeiting function, temperature display function, high-temperature alarm function, and food-grade spray disinfection function. It can meet the needs of different application scenarios and help all walks of life quickly realize the functions of facial recognition temperature measurement and body surface elimination.

The scope of application of the intelligent atomization disinfection door: It is precise because of the outbreak of the epidemic that the atomization disinfection door is used in more public places, such as airports, railway stations, and other places with high traffic, school entrances, shopping malls, office building entrances, community entrances, Hotels, restaurants, factories, and other places with dense entrances or heavy traffic.

What are the advantages of smart disinfection door products?

1. Body temperature measurement: high-precision infrared probe free contact temperature measurement, accuracy is less than or equal to ℃, 2-3 seconds per person.

2. Probe height: configure temperature probe (probe height), height can be customized. The probe can be moved up and down in 3 different positions to suit people of different heights and different age groups.

3. Abnormal alarm: the green light for normal body temperature passes, and the red light for abnormal body temperature alarm passes.

4. Voice broadcast: Voice broadcast of test results, friendly prompts when body temperature is abnormal, and custom greetings.

5. Portrait positioning: fixed human body angle and distance, with infrared temperature sensing system, standard distance, accurate temperature measurement.

6. Visitor records: The number of visitors is correctly recorded through ultrasonic sensors.

7. Liquid crystal display: the real-time display of temperature measurement data/time/number of people.

8. Data intelligence: multi-conditions filtering and displaying data, and exporting is quick and convenient.

9. High precision: short-distance measurement method is adopted, which has little impact on the environment, a small error, and high accuracy of measurement results.

10. No contact: There is no contact during temperature measurement, and the cooperation of visitors is low, which can avoid the danger of cross-contact.

11. Extended functions: Face recognition access control can be extended, and cameras can be installed.

Different types of disinfection sites, customized disinfection doors with different requirements. For more information about the disinfection door, please contact us in time, and our company will have dedicated technicians to answer your questions in time.

Buy latex surgical gloves production line

latex surgical gloves production line process: latex gloves making machine uses latex or synthetic rubber as the main raw material and other chemicals as auxiliary materials. The cleaned model is first immersed in hot water and heated until it is dipped in coagulant. Dry for dipping. After dipping, it is sent to an oven for preliminary drying, flushed with hot water, and then sent to the oven for vulcanization, drying, and forming. After the gloves are demolded, they are inflated or filled with water for inspection, washed, dehydrated, and dried, then packaged and sent to the finished product warehouse.

Nitrile gloves material introduction: Nitrile rubber is made of butadiene and acrylonitrile through emulsion polymerization. Its products have good oil resistance and high abrasion resistance. It is manufactured by using nitrile rubber and other additives; it does not contain protein, has no irritation to human skin, is strong, and has good adhesion.

Latex gloves application scope: Nitrile gloves are widely used in housework, electronics, chemicals, water industry, glass, food and other factories, hospitals, scientific research, and other industries.

Features of latex glove production line

1. Using the current more advanced glove production process layout and production technology, the product qualification rate is over 98%, and the protein content is less than 120 micrograms/g;

2. TPU coating technology;

3. Surfactant coagulant, uniform film formation, powder-free demoulding.

4. The introduction of advanced transmission main chain structure, the chain running resistance is small, and the production runs smoothly at high speed.

5. The main motor is dragged, which solves the problems of multiple dragging, difficult synchronization, multiple failure points, and difficult maintenance.

6. vertical hot air circulation is adopted in the drying oven, which saves energy consumption by nearly 20% compared with other forms of hot air circulation.

7. Six-roller long-hair brushing technology for mold finger cleaning;

8. Mold orientation and on-machine coding technology;

9. Multiple specifications are produced on the same machine, curling is automatically adjusted, and PU curling rollers have a long service life;

10. Models with different lengths, heights, and costs can be designed according to customer needs.

Other additives are manufactured and processed; they do not contain protein, have no irritation to human skin, are firm, and have good adhesion.

The natural latex glove production line and industrial latex glove production line are designed with the advanced technology and process formula of Japanese and Korean fleece glove production lines. The equipment has a reasonable structure and is suitable for a variety of formulas; automatic flocking/electrostatic flocking can produce single-color and double-color fleece It can also produce imitation Oxford gloves. The product has bright color and a high one-time pass rate, meeting the requirements of GB and CE. The glove production line specifications are 70 meters, 90 meters, 110 meters, etc., and can also be designed according to the customer’s production site. , The company adheres to the principle of reputation, quality, and customer satisfaction, sincerely welcome new and old customers to visit and buy, we will serve you wholeheartedly!

How does an asphalt milling machine work?

With people’s recognition of asphalt milling machines, this kind of equipment is now more common in the industry. The asphalt milling machine is equipped with an automatic leveling device, which uses the side cover of the milling rotor as the milling reference surface, and controls two positioning hydraulic cylinders to keep the given milling depth constant; its hydraulic system is used to drive the milling rotor to rotate and the whole machine Walking, auxiliary device work, etc., are generally closed hydraulic systems with multiple pumps each other, which ensure a good combination of new and old road materials during work and increase their service life.

The working principle of a small asphalt milling machine:

Using the reverse cutting principle of the large milling machine, the small asphalt milling machine relies on the forward high-speed rotation of the milling drum to swing several sets of hard tungsten steel alloy blades on the cutter shaft of the milling drum to hit the ground at high speed. The tungsten steel alloy teeth on the alloy blades are used to crush and grind the ground material, so as to achieve the surface milling treatment effect.

The use of small road milling machine:

1. The surface of the bridge deck is water-proof and shaved, and the surface flatness and water-proof treatment of the high-speed railway box girder.

2. Milling and planning of asphalt pavement, rutting, net cracking, and potholes. Clear the ice and snow from the bridge deck and road surface.

3. Lightly roughen the original old pavement before the new asphalt concrete paving, or cooperate with a large milling machine to complete the milling and roughening operations in the corner area and the densely populated area.

4. Remove the ground coating, paint, and various traffic markings; when the ground is damaged or dirty and needs to be refurbished, remove the old floor surface, etc.

5. Clear airport road markings, runway tire brake marks, etc., and regain a rough surface with a high friction coefficient.

6. Milling and leveling the over-elevated parts of the cement asphalt pavement, highway bridge deck, bridge staggered platform, and epoxy resin wear-resistant ground.

7. For the construction of the micro-surface of the road, the original old pavement surface layer should be milled and planned to prepare for the slurry seal.

The big cost of asphalt milling machine operation is the cost of diesel fuel consumption and the cost of replacing the milling cutter head. If the milling machine is working at full capacity every day, the daily fuel consumption can reach 1t. Milling cutter heads are important consumables. Every milling 10,000 m2 of asphalt pavement needs to replace all milling cutter heads, and the cost of each replacement is about 10,000 yuan. Compared with asphalt pavement, the loss of milling cutter head is greater on cement pavement. Labor costs, equipment repair and maintenance costs, etc. must be calculated separately.

Operation Method and Common Problems of Small Vibrating Road Roller

In highway construction, the small vibrating road roller is suitable for compacting various non-cohesive soils and various asphalt concretes. Due to its small size, it can be applied to various narrow working environments. The operation of the mini roller compactor is very simple, and there is a separate vibration button to increase the pressure strength, let’s take a look at how to use the small vibration road roller.

The operation method of small vibrating road roller

1. During operation, the vibrating road roller machine should start before it starts to vibrate. The internal combustion engine should be set to medium speed first, and then adjusted to high speed.

2. The engine should be stopped first when shifting and reversing, and the speed of the internal combustion engine should be reduced when shifting.

3. It is strictly forbidden for the roller to vibrate on solid ground.

4. When rolling a soft roadbed, first roll it 1 to 2 times without vibration, and then vibrate it.

5. When rolling, the vibration frequency should be consistent. For the adjustable vibration road roller machine, the vibration frequency should be adjusted first before an operation, and the vibration frequency should not be adjusted without starting vibration.

6. The adjustment of the reversing clutch, shock clutch, and brake should be carried out after the main clutch is disengaged.

7. When going up or downhill, fast gears are not allowed. In sharp turns, including articulated vibration road roller machines when rolling in small turns, it is strictly prohibited to use fast gears.

8. The roller compactor must not engage with vibration when driving at high speed.

9. When stopping, stop the vibration first, then put the reversing mechanism in the middle position, place the transmission in neutral, pull up the hand brake lever, and the internal combustion engine will turn off after idling for a few minutes.

Tips for using a vibratory roller compactor

1. When changing the driving speed, the main clutch or the reversing clutch must be disconnected before the shifting handle can be shifted.

2. When the roller compactor changes the direction of travel, the reversing handle must first be moved from the forward (reverse) position to the neutral position, and then the handle shall be moved to the backward (forward) position after the roller has stopped. Do not pull it in place at one time to avoid damage to the parts due to sudden change of driving direction.

3. During the operation of the roller compactor, if the reversing clutch or the starting clutch is found to be slipping, stop immediately and disconnect the main clutch; the reversing clutch or the starting clutch must be checked, adjusted, and trouble-free. Do not increase the throttle and try to drive with high speed and high power, otherwise, the clutch disc will be burnt.

4. When compacting loose materials, they should be vibrated and rolled after 1 to 2 times of static compaction.

5. The start or stop vibration of the road roller machine should be carried out during operation to avoid damage to the road surface. It is strictly forbidden to start vibrating on hard roads to avoid damage to the vibration damping device or other parts.

6. High-speed gear can be used when making short-distance transitions on flat roads, but if the distance is longer, other means of transportation must be used.

7. When going up or downhill, you should change the low-speed gear in advance, and it is forbidden to go up or downhill at high speed.

8. It is forbidden to operate the vibrating device during the high-speed rolling operation.

If you want to drive a small vibrating road roller machine, you must find a good reference, look at the big direction, and slowly make fine adjustments according to the angle of the wheel and the road edge. The compact roller produced by YG Machinery has a compact structure, small volume, no speed change in forwarding and backward directions, simple operation, and high efficiency. If you have any questions about the compact roller, please feel free to call us.

Mortar Spraying Machine /Cement Plaster Spray Machine Factory Direct Sales

When the mortar spraying machine uses a large spray gun, the spraying distance should be 2-30 cm. When using a small spray gun, the spraying distance should be 15-25 cm. If the distance is too close, the spray will be thick, and if it is too far, the spray will be thin. The running speed of the cement sprayer machine must be kept at a constant speed, generally at a speed of 30-60 cm/sec. Too slow is easy to cause sagging, and too fast is easy to leak. For the overlap of spray patterns, it is necessary to accumulate experience in daily work in order to give full play to the spraying effect. The temperature of the sprayed coating should be controlled at 20-30°C, otherwise, it will affect the viscosity of the coating and thus affect the spraying effect.

Product features of cement sprayer machine:

1. The cement plaster spray machine is designed reasonably, and the pump and compressor integrated sand and gravel crushing equipment is easy to sell and move.

2. The mortar spraying machine feeds continuously, and the complete set of equipment has no pulse phenomenon;

3. The cement sprayer machine has wide applicability and can be sprayed with dry powder, mortar, or ordinary mortar;

4. The mortar spraying machine has a uniform spraying effect and strong adhesion;

5. The cement sprayer machine has complete functions, which can be sprayed and sprayed;

6. The direction of the concrete mortar spraying machine and the nozzle connection can be chosen for easy operation.

Uses of concrete mortar spraying machine:

1. In construction engineering, it is used for horizontal and vertical transportation of mortar or large area spraying.

2. In the chemical industry and paper industry, conveying pulp raw materials and waste materials.

3. Used for conveying fly ash slurry in thermal power plants.

4. Used for grouting slope protection in national defense and civil air defense projects, and my tunnel construction.

5. In the maintenance of highway pavement, the teeth used for cement pavement collapse will be filled.

6. In the prestress construction project, it is used for mortar injection and expansion.

7. In water conservancy projects, it is used to reinforce dams.

8. In metallurgy, steel, and other industries, it is used to maintain blast furnaces and other equipment for slurry infusion.

Cement plaster spraying machine related to the electricity consumption of machine spraying equipment: cement mortar spraying machine is high-power electrical equipment when the power is turned on, we first need to check whether the cement mortar spraying machine cable is damaged or not, and then we need Pay attention to whether the ground wire of the machine spraying equipment is properly solved, and whether the forward and reverse rotation of the cement mortar spraying machine motor is normal. Again, you should pay attention to the cement mortar spraying machine wiring firmly to avoid phase loss. If any abnormal phenomenon of the cement sprayer machine is found, the power supply must be cut off in time for rectification and repair. It can be turned on normally.

Common faults of the cement plaster spray machine starter: 1. The movable iron core cannot move flexibly after matching with the switch shaft and the coil shell; 2. The contact surface in the switch and the surface of the contact plate on the shaft are not smooth, ablated, and bonded. ; 3. The relay coil is short-circuited or open; 4. The drive fork stroke adjustment screw mortar sprayer is improper, and the contact gap is improper.

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