Ningbo Baozhen Machinery Co., Ltd.

Ningbo Baozhen Machinery Co. , Ltd. is a professional hardware factory which is located on the east coast of China. It is a real source manufacturer of production and sales.

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Hydraulic hose Banjo fitting

The material  are always carbon steel, stainless steel or brass, and the material can be customized.

The surface of the ferrules are smooth, zinc plating or others customized.

Features High functionality Precise design Durable

We carries a wide variety of hydraulic hose ferrule fittings in common size,used mainly for crimping hose fittings.

More other type ferrule,fitting and hose please feel free to contact with us.

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Long Tube Metric Banjo Fittings

Our service

1. we keep improving our tech and have professional engnieer

2. we always offer good quality with good price

3. we offer the best service for client communication

4. we can carve client's logo on the products

5. we can product complete same items based on client's samples or drawings

6. we can provide samples for test

Application

Automobile, engineering Machinery, Lathe, Machinery, Metallurgy, Petroleum, mine, construction, chemical industry, shipbuilding, spacecraft, military,Textile, Ocean,Recreation, Electronics and many other fields related with hydraulic and their delivery system of fluid and gas etc.

Advantage

1We have more than 15 years of manufacturing experience.

2.Customers whoc cooperate with us can gain a lot of  benefit from our professional team and good quality products.

3.We can supply all kinds of hydraulic fittings. Just send us your drawings or technical reference,we can customize items for you.

4. We can supply hydraulic fittings with international standard, ISO, BSP, NPT,etc

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Blue Banjo Pipe Fitting High Performance Anodized

1) Material: Aluminum Alloy, Stainless Steel, carbon steel ,Zinc, Titanium and so on2) Finish: Anodized3) Standards: DIN, JIS, ANSI, etc4) Packing: carton, customized packing5) Shipping: Express, by sea or air6) Application: Mainly used for race car modification, Mechanical, etc.Delivery time: 1) Stock: we can deliver it in 2-3 days2) OEM: we can deliver it in 20-30 days.MOQ: 2000 pcsPayment: L/C, T/T

We are manufacturer of all kinds of hydraulic hose fitting, auto parts, tube fittings, high performance banjo pipe fitting with more than 15 years production experence, we have advanced CNC machines and machining technology and professinal technicians. Superior quality and good after sales service makes clients worldwide working with us.  We hope to have you work with us as well in near future.

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Precision casting parts 3-way banjo fitting

Precision casting parts

The whole piece will never leak oil !!

But this requires a huge number of orders~

Three way joint for connecting hose

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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Bendable to 30° Banjo fitting

30 degree low-profile round banjo fittings

Material: carbon steel

finish: zinc plating

Contacts

Tel : [phone]

Email : [email protected]

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Brake hose hydraulic banjo eye bolt pipe fitting screw

hole：10mm

overall length：56mm

width：17mm

thread：female

material：stainless steel 304

Contacts

Tel : [phone]

Email : [email protected]

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Dental implant Medical bone Nail

Scope of Business

1.Material：Stainless steel, iron, copper, aluminum, titanium, alloy, etc

2.Processing procedure：we can provide a complete set of services such as turning, slot milling, drilling, tapping, knurling, grinding, electroplating, laser and so on

3.Processing equipment: CNC precision automatic lathe, CNC lathe, turn milling compound machine , stamping machine, grinder machine

4.Surface treatment:Electroplating, annealing, painting, anodizing

Medical dental bone nail Common Materials for Processing

1.brass: Brass has good mechanical properties, easy cutting, easy welding and corrosion resistance, but it is easy to produce corrosion splitting. Can withstand large load

2.Stainless steel: strong oxidation resistance, good corrosion resistance and high temperature resistance. It is widely used in industrial buildings and decoration

3.Aluminum alloy: light and good strength, good corrosion resistance and good processability. It is widely used in aircraft, automobiles, industrial appliances, etc

4.Iron: good ductility, good conductivity, easy electroplating and processing. It is widely used in mechanical equipment, furniture, automobile and motorcycle accessories, etc

Red copper: it has good conductivity, heat conduction, corrosion resistance and processability, and can be welded and brazed

Product Parameters of Medical dental bone nail

Accuracy

Materials

Technology

Product Features of Medical dental bone nail

1.High dimensional accuracy:Imported CNC equipment, high-end testing equipment and all-round quality system to ensure the high precision of parts

2.Material guarantee: Selected materials from major manufacturers at the source

3.On time delivery:Rapid prototyping, complete supporting equipment, uninterrupted process, order production and whole process follow-up

4.Price advantage:After years of process improvement, the production cost is accurately controlled, and the price has an advantage in the industry

Extensive Use

Our products are widely used in digital electrical appliances, electronic toys, jewelry lamps, photoelectric communication, optical instruments, pneumatic electronic components, beauty and medical machinery, aviation and automobile and other fields.

About Us

Our company mission is “Maintain perfect quality and establish perfect personality”. Products not only works, works not only character. Building a high quality Chinese brand. In the past 15 years, we have always adhered to the concept of "technical innovation, quality first, service first" and sincerely create brilliance with customers. We seek the enterprise's development opportunity in the numerous domains, widens from the survival space unceasing with own wisdom, obtains the bigger market share. Contain development of the high technology, high degree of specialization, high-quality products, on this basis, to achieve products structure optimization and upgrading.

Contact Us

Danni Chen

Wechat: Niababyya

Email:[email protected]

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Racing Car Modification Reducer Fuel Hose Fitting

The reducer fuel hose fitting can be used in racing car modification, engine fuel oil pipe connection, high quality.

FAQ:

Q1: Are you Factory or trading company?

A: We are manufacturer with more than 15 years production experience.

Q2: How does your factory do regarding quality control?

A:  We do 100% quality inspection before packing, and random inspection during production.

Q3: What is your payment term?

A: 30% T/T deposit or Alibaba Trade Assurance, balance and freight before delivery.

Q4: What is the sample time?

A: Normally samples need 3-7 days and mass production time needs 30-45 days.

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700M Hex 304SS M10 Banjo Bolt

700M Banjo Bolt with 2 holes Oil pipe connector hydraulic pipe fittings

Engine parts Directly sell

Material: 304 Stainless steel

Head: hex

Thread: M10*1

length: 25mm

Business type：IATF16949:2016 certificate factory

Package：Environmental protection plastic blister box + carton + wooden pallet

Finish: Sandblasting, Ultrasonic cleaning, Zinc/Nickl Plating, Polish, Power coating, Passivation, Titanium Plating, etc.

Drawing format：STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples.

email：[email protected]

Danni

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Customized Brass pipe fitting

CNC machining Customized Machined Part Automotive Copper Joints brass Tube Fittings, we can quote the price and give you some advice according to your drawings.

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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Custom mechanical equipment parts

Name: Custom mechanical equipment partsMaterial: brass, aluminum, carbon steel, stainless steel and so on.

Size: according to your drawing and requirements.

Usage: Mechanical equipment, medical equipment and other partsSurface Finish: zinc plating or natural

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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Dipstick connector Banjo Bolt

1.Full Customization:

According to the drawings, we can produce high-quality products perfectly. OEM/ODM:acceptable.

2.Low Minimum Orders:

Everyone is welcomed here, even you only need 100pcs for a test.

3.Complete inspection of products:

From raw materials to production to packaging and to quality sales, each link is strictly implemented standards based on the IATF 16949.

4.Advanced production equipment:

We use advanced domestic production equipment to greatly improve production efficiency and product quality, working to full automation machinery.

5.Excellent packaging:

We use plastic protective sleeve or plastic bubble film to double protect the product to reduce damage.

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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How to unscrew the rusty brass block nut?

Standard brass block nuts are common fasteners in our daily life, but rust is also a common problem phenomenon of brass block nuts, and the ability to easily unscrew rusted screws and nuts is what we all want to know most. According to the knowledge of screws and nuts, Baozhen Machinery will share with you a good way to unscrew the brass block nut after it is rusted.

Method 1: Beat to help loosen the rusty brass block nut

In the process of using the brass block nut, if the rust is not very serious, and it is a larger brass block nut, we can use the method of tapping to loosen the screw and nut. The rusted nut seems to be very strong, but only some rust is used to fix it. Sometimes this method of tapping is effective. Hold the wrench in one hand to fix the screw, and the other hand holds the hammer to hit the tail of the wrench. , You can strike with a small force first, if you still can't twist, then increase the force appropriately. Be careful with the force. If you have no experience, strike slowly to avoid knocking.

Knock a few more times in this way and use a wrench to twist. If the brass block nut becomes loose, it can be unscrewed. Not only can the nut be kept intact, but also the speed is fast.

Method two, carbonated drinks to remove rust stains, easily unscrew the brass block nut

Using carbonated beverage spraying, carbonated beverages contain carbonic acid. Carbonic acid can react with the iron oxide in the rust. During the reaction, the rust gradually disappears or is softened, and the natural brass blocks and nuts will not be rusted. This The method may be slower, you can prepare a watering can to spray continuously, and use a wrench to gently pull it back and forth to try to loosen it.

It will be fine after a few minutes. If the rust is serious, you need to extend the time. After unscrewing, remember to make carbonated drinks with water or replace the screws. Otherwise, it will easily continue to rust if you use it again.

Method three, alcohol + white vinegar + detergent to remove rust stains and easily unscrew the brass block nut

Add appropriate amount of water to the bottle, then pour two caps of alcohol, two caps of white vinegar, two caps of detergent, and shake them evenly. Pour some on the brass block nut, let it sit for a few minutes, and then gently twist it with a wrench. The rusty brass block nut can be loosened immediately, and the brass block nut can be removed without any effort.

This method is similar to carbonated beverages. In fact, they all play a role in reacting with iron oxide. You can mix the three and put them in a watering can to spray directly. The speed is similar to that of carbonated beverages, and the method is the same.

These methods for loosening rusty brass block nuts must be remembered, we will often encounter this problem in our daily lives, we may wish to use these methods to try, to see if you can easily unscrew the standard brass block nuts?

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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Processing method of extra long non-standarded screw

Non-standard screw is a kind of slender shaft parts. It appears because some machines or household items are used on it, and the process of its processing is different from that of ordinary screws. Many non-standard screws cannot be directly driven by a screw machine. They must be processed by lathes, machine tools and other machines. Because the rigidity of the extra long non-standarded screw is very poor, it is very easy to deform during processing, which has a great influence on the accuracy of the extra long non-standarded screw. For this reason, the following measures are often used to solve the problem in production.

(1) Improve the clamping method of the workpiece

During rough machining, due to the large margin for cutting over-length non-standard screws, the workpiece is subjected to a large cutting force. Generally, the clamping method is adopted, and the tailstock center adopts an elastic center, which can make the workpiece freely elongate in the axial direction. However, due to the limitation of the top elasticity, the axial extension of the extra long non-standarded screw is also limited, so the tightening force is not very large. In high-speed, large-volume cutting, there is a danger that the extra long non-standarded screw will be separated from the top. Carafa can be used to avoid this phenomenon.

When precision turning, the double center method (the tailstock should use the elastic center at this time) is beneficial to improve the accuracy of the extra long non-standarded screws, and the key is to improve the accuracy of the center hole.

(2) Adopt a knife holder

The follower is an extremely important accessory for turning extra long non-standarded screws. The use of the follower tool holder can offset the influence of the radial cutting component during machining, thereby reducing cutting vibration and workpiece deformation, but careful adjustment must be paid to keep the center of the follower tool holder consistent with the center of the machine tool.

(3) Adopt reverse feed

When turning over-long non-standard screws, the turning tool is often made to feed in the direction of the tailstock (the cara tool should be installed at this time), so that the direction of the feed force exerted by the tool on the workpiece is toward the tailstock, thus causing the workpiece to produce axial The trend of elongation, and the Kara tool greatly reduces the bending deformation caused by the elongation of the workpiece.

(4) Using turning tools for turning extra long non-standarded screws

Turning tools for turning over-length non-standard screws generally have larger rake angles and entering angles to make cutting brisk and reduce radial vibration and bending deformation. The turning tool for rough machining has chip breakers on the rake face to make chip breaking easy. Precision turning tools often have a certain negative edge inclination, which makes the cutting flow to the surface to be machined.

Through the above content, we have already understood the problem of the processing method of extra long non-standarded screws. When processing extra long non-standarded screws, you can follow the above method to operate. The use of extra long non-standarded screws is very wide. Shaft precision machining technology directly affects the product quality of the whole machine. Therefore, it is of great significance to study the processing of such precision parts. For specific processing details, please consult Ningbo Baozhen Machinery Co., Ltd.！

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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Surface quenching cracks of fasteners Surface quenching cracks

Metal fasteners are characterized by a wide variety of specifications, different performance and use, and the degree of standardization, serialization, and generalization is also extremely high. Once the industrial metal fastener fails, it will have a serious impact. Therefore, it is necessary to strengthen the analysis of the reasons for the failure of metal fasteners and find corresponding improvement measures.

1. Surface quenching cracks of industrial metal fasteners

Surface quenching cracks refer to the cracks produced during the quenching process or during the room temperature storage process after quenching, the latter is also called ageing cracks. In the quenching process of industrial metal fasteners, when the stress generated by quenching is greater than the strength of the material itself and exceeds the plastic deformation limit, it will cause cracks.

The quenching cracks of industrial metal fasteners are often produced shortly after the martensite transformation begins. The distribution of cracks has no certain rules, but it is generally easy to form at sharp corners and sudden cross-sections of the workpiece.

The quenching cracks caused by the excessive cooling of industrial precision metal fasteners in the martensite transformation zone are often distributed across the grain, and the cracks are straight, and there are no small branch cracks around.

The quenching cracks of industrial metal fasteners caused by the excessively high quenching heating temperature are distributed along the crystal, the crack tails are sharp, and show the characteristics of overheating. Thick acicular martensite can be observed in structural steel, and in tool steel Eutectic or horny carbides can be observed.

High carbon steel workpieces with surface decarburization are more likely to form network cracks after quenching. It is split into a mesh.

The quenching cracks on the surface of precision standard metal fasteners can cause the bolt to break suddenly, and the fracture source of this type of fracture is located on the surface.

2. Measures to prevent quenching cracks on the surface of industrial metal fasteners

(1) Reasonably adjust the gap between the induction hardener and industrial precision metal fasteners, and select appropriate intermediate frequency power parameters and quenching process parameters in strict accordance with the process requirements to ensure that the temperature of the industrial metal fasteners is evenly heated, and prevent local temperatures from being too high. Normal quenching temperature.

(2) Improve the structure of the quenching inductor, change the upper and tail circular cross-sectional structure of the inductor to a rectangular cross-sectional structure, reduce the heating speed of the end and tail inductors, and prevent the end and tail from heating up quickly and exceeding the process control temperature. Overburning occurs, resulting in cracks.

(3) Reduce the number of magnetizers of the quenching inductor in the transition zone at the end of quenching, and appropriately reduce the heat there.

(4) Adopt the preheating-heating-cooling quenching method to make the heating temperature of industrial precision metal fasteners even.

(5) Properly extend the cooling time of precision standard metal fasteners after intermediate frequency heating.

(6) Implement self-tempering. Strictly follow the process and technical parameters, reasonably control the pressure, flow, temperature and cooling time of the quenching coolant. After stopping the spraying, use the residual heat of the workpiece to increase the temperature of the hardened layer, thereby performing self-tempering to keep the precision standard metal fasteners high The surface hardness and good wear resistance can stabilize the quenched structure in time and reduce the peak tensile stress.

Industrial metal fasteners are a type of mechanical parts that are used for fastening and connection and are extremely widely used. Industrial precision metal fasteners are widely used in all walks of life. In all kinds of machinery, equipment, vehicles, railways, etc., you can see a variety of precision standard metal fasteners, which are the most widely used machinery One of the basic parts.

Contacts

Tel : [phone]

Email : [email protected]

Address : Beiao Village, Tangxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China

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New development of automobile fastener processing technology

For a long time, automobile fasteners have been dominated by the basic characteristics of a wide range of varieties, types and specifications. The selection and use of automobile fasteners involves structural analysis, connection design, failure and fatigue analysis, corrosion requirements and assembly methods. , And related product quality control and testing. These factors largely determine the final quality and reliability of automotive products. Automobile fastener processing technology is constantly evolving.

Coupled with the wide distribution of automobile fasteners in various system components of vehicles, the mass production characteristics of automobiles, many companies are facing a higher risk of quality defects, which puts forward a higher level of quality management and standardization work for companies.

1. Overview of automobile fasteners

Due to the wide variety of technologies involved in automobile fastener products, which are extremely complex, and various technologies are intertwined and affect each other, comprehensive research and in-depth analysis, combing and accurate identification must be carried out to determine specific key technical fields, and clear details. According to the development goals and priorities of the technology, it will form a good situation for focusing on the advantages of resources and focusing on key problems, and accelerating the promotion of core technologies.

According to the service conditions of ISO898-1 and GB/T3098.1 standard high-strength bolts, the mechanical properties of automobile fasteners generally have the following requirements:

①automobile fasteners need to have high tensile strength and high yield ratio;

②Sufficiently high plasticity, especially when tightening with plastic zone;

③automobile fasteners can be tightened repeatedly, that is, they can withstand large stress amplitude loads enough times and have good low-cycle fatigue performance;

④ When automobile fasteners are subjected to alternating loads, they should have good high-cycle fatigue performance;

⑤ When automobile fasteners are subjected to impact loads, they should have higher impact toughness;

⑥Good delayed fracture resistance;

⑦Good low temperature resistance;

⑧automobile fasteners need to have good creep resistance and stress relaxation resistance;

⑨Lower notch sensitivity (bolt system with multiple notch parts);

⑩automobile fasteners need to have a stable surface friction coefficient to obtain a stable assembly pre-tightening force. 

The fundamental function of automobile fasteners is "connection." Riveting and threaded connection are the most important connection methods so far, and they have always been the mainstream.

2. The development of automobile fasteners

Threaded connection is a complex connection method. Its mechanism is still being explored and researched. The main theories and application methods involved in it are still the theoretical classics of the European VDI2230 in the last century. Without these theories, threaded connections in the world Technology will still linger at the level it was decades ago.

In addition, research on new materials, plastic forming and other theories and technologies has laid a solid foundation for the manufacture of automobile fasteners, which is dominated by cold forming, which is widely used today.

China has the world’s highest automotive output and market. There are more than 100 major manufacturers of automobile fasteners, representing the highest level of automobile fastener manufacturing in China. High-efficiency, high-speed, and highly automated manufacturing processes are inseparable from fundamentals.

The selection and use of automobile fasteners involves many aspects. These basic theories and technologies have given new connotations to the innovation of automobile fastener products, manufacturing technologies and equipment. It shows that any basic theories and technologies cannot be developed or stagnated. Automobile fastener processing technology will definitely have new breakthroughs.

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Alibaba Trademanager is officially launched

On June 18, 2021, our company is officially launched on Alibaba Trademanager, which contains most of the products. This is the first platform we want to try to do foreign trade. Our company has been in China for 15 years, but it has always been doing domestic trade. This time we want to innovate and share China’s good products with people in need all over the world. It took more than a month to finally set up the platform.

The current platform is not perfect, but we will continue to optimize our products and platform to give customers a better experience. If you want more personalized customized products, please contact us.