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China Best Sales Hydraulic Cylinder for Hydraulic Press Machine with Servo Motor with Free Design Custom

Product Description

hydraulic cylinder for hydraulic press machine with servo motor

We are the factory specializing in the production of hydraulic presses.
And can provide total solutions, including hydraulic press machines, molds, product processing technology, automated production lines.

YIHUI 4 column servo hydraulic press machine is with PLC and with touch screen and with servo motor .

Touch Screen Details

Product Application

Pressing, heat pressing,Forging, Stamping, Powder Compacting, Compressing, Moulding and so on.
 

Parameters

YHA5 single action servo hydraulic press specification
Item Unit Specifications
YHA5-80T YHA5-100T YHA5-150T YHA5-200T YHA5-300T
Nominal capacity kN 800 1000 1500 2000 3000
Max.Working pressure Mpa 20 21 21 20 24
Main cylinder Force kN 800 1000 1500 2000 3000
Max.Stroke of ram mm 350 350 350 350 350
Max.Open height mm 450 450 550 600 650
Lower cyinder norminal force kN 50 50 50 50 50
Max.stroke of cushion piston mm 150 150 150 150 150
Speed of ram Down no load mm/s 180 180 180 180 170
Pressing mm/s 15 12 10 10 8
Return mm/s 170 170 170 170 165
Effective area of working table RL(column inside) mm 550 550 550 550 550
FB(edge) mm 600 600 600 600 650
Overall dimension L.R mm 1550 1550 1760 1830 1420
F.B mm 1260 1260 1260 1360 1550
H mm 2580 2580 2650 2750 2920
Motor power kW 7.5 7.5 7.5 11 15
Total weight(Approx) Ton 2.6 2.6 3.2 3.5 6.2
Oil quantity(Approx) L 300 360 360 400 450

All above specifications are standard specification of hydraulic press machine,any special specifications customize is also available for us!

Component Details


 

Why so many famous brand company cooperate with us ?

1.Our factory have specialized in independent development and producing hydraulic press for 20 years.So the product is stable and high quality.
2. Machine body, we use bending structure , much stronger than the common welding structure .
3. Oil pipe, we use Clip-on structure , much tight than common welding structure. Prevent oil leakage.
4. We take integrated oil manifold block, much easier to check machine and repair machine. 
5.The main components are imported from Germany, Italy and Japan . So the quality is near the Japan       production, but the unit price is lower than Japan production.
6.Our factory can offer full set line service, such as the mould,process technology, and other relative     machines.

Our Certificates

 

Features:
Servo motor drive system:

1. Small start-up current: little impact on power grid.
2. Motor starts when press is punching and stops when feeding material,picking out bricks,and cleaning mould. Energy-saving high to 65%.
3. High control precision: speed error is only 0.0001/r.
4. Stable running: no vibration and high torque when runs with low speed.
5. Quick response: very short time from static to rated speed, CZPT to adjust speed freely between high speed to low speed within 1 stroke. Excellent effect of even hammer strike.
6. Speed overload function, achieves 2-3 times of rated speed. 

Touch screen parameter setting system:

1. According to technology demands for different bricks, user can set the strike times, strike strength, and strike speed digitally. CZPT to achieve the effect of gently press for air-released, strike from gentle to heavy, the whole process of brick producing sequencing, reduce human factor to improve product quality.
2. Touch screen can real-time display the working status, monitor the producing process, detect and report the failure automatically.
3. CZPT to set password to protect production safety.
4. Touch screen has operation instruction and guideline.

 

Some Overseas Customers

 

YIHUI Hydraulic press with servo system,can bring you 10 kinds Advantages as below:

1. Can avoid the oil leakage. Because using Servo motor, the oil temperature can be lower.
2. English and customer country local language, bilingual operation interface, easy to operate.
3.Can save 50% - 70% energy.
4.Parameters and Speed can be adjusted on the touch screen, easy to operate.(Machine without servo system, speed can not been adjusted.)
5.Can be 3 to 5 years longer service life than the common machine. 
it means,if common machine can service for 10 years, then machine with servo, can use 15 years.
6.Ensure safety and easy to know error,easy to do after service. Because of Automatic alarm and auto troubleshooting system. 
7.Very easy to change mold, shorter time of changing mold.
Because it have memory function,if use the original mold, do not need to adjust parameter again, 
8.Very quiet , do not have noise.
9.Much stable than common machine.
10.Much high precision than common machine.

Our Company

 

Years of Experience

HangZhou CZPT Hydraulic Machinery Co., Ltd. has been specialized in manufacturing hydraulic press machine for over 20 years . Especially speciallized in the servo system hydraulic press machine .

Exported Countries

YIHUI brand machines have been exported to over 40 countries,
such as Germany, USA, UK, Sweden, Japan,Slovenia, Serbia,Saudi Arabia,El Salvador,Togo, Malaysia,Singapore, Australia ,Vietnam,Pakistan,South Africa, and so on.

Cooperative brand

 

Customers' Positive Feedback

Exhibition

Packing&Delivery

Packing
Size Accordingly
Weight Accordingly
Packing Details The normal package is wooden case(Size: L*W*H). The wooden case will be fumigated if needed. If container is too tight, we will use PE film for packing or pack it according to customers' special request.

 

FAQ

 Q1. Are you manufacturer or Trader?

     A1: We are professional in producing hydraulic press for over 20 years, We have our own designer,and the machines have been patented.

    Q2. How to get an accurate quotation?
    A2: The customer should provide the related technical requirements, product drawings, pictures, industrial voltage, planned output, etc.

    Q3. What if I use this machine for the first time and know nothing of it ?
    A3: We will have our engineers teach you how to operate it,you can just inform us some details of the product.you need then we can customize as your special order.

    Q4. How does your factory do regarding quality control?
    A4:HangZhou CZPT has been regard quality as the priority. We always attach great importance to quality controlling from the very beginning to the very end ,so our press can match all the CE and ISO standard also more strict standard .

    Q5. How about your delivery time?
    A5: Generally, it will take 35 days after receiving your deposit payment. The customized press delivery time depends on the items and the quantity of your order, in general is 55 days.Sometimes we have standard machines in stock.

    Q6. What is the warrantee period of the machine?
    A6: We can supply 1 year warranty for our machines, We can send engineer to customer place if big quality problem. We can provide internet or calling service at any time.

    Q7. What is the after-sales service of your factory?
    A7: 1.Installation:Free installation and commissioning, travel expense is on foreign customer. (Including round ticket and accommodation cost)
       2.Personnel training: Our engineers will give your employees free machine training when they come to our company to assemble the machines, and welcome to our factory to learn how to operate our machine.
B7: And we can offer engineer overseas service.

   Q8. What is the advantage of your factory?
   A8: The main components of our machine are imported from the famous brand such as Japan and Germany. So the quality is near the Japan production, but the unit price is lower than it.

We do have a full set line service (turnkey project),which means that we can not only provide the press and mold but also able to customized as your special order.

Materials Used in Bearings

If you're not familiar with the types of bearings, you may be interested in knowing more about the materials used to manufacture them. Here's a look at what each type of bearing is made of, how it's used, and how much they cost. To find the right bearing for your application, it's important to choose a quality lubricant. The materials used in bearings are determined by their type and applications. Choosing the right lubricant will extend its life, and protect your machine's parts from damage and premature wear.

Materials used in bearings

Bearings are made from a variety of materials. Stainless steel is a common material used for the components of bearings. It has a higher content of chromium and nickel. When exposed to oxygen, chromium reacts with it to form chromium oxide, which provides a passive film. For higher temperatures, teflon and Viton are also used. These materials offer excellent corrosion resistance and are often preferred by manufacturers for their unique properties.
Stainless steel is another material used in bearings. AISI 440C is a high-carbon stainless steel commonly used in rolling-contact bearings. It is widely used in corrosive environments, especially in applications where corrosion resistance is more important than load capacity. It can also be heat-treated and hardened to 60 HRC, but has lower fatigue life than SAE 52100. Stainless steel bearings may carry a 20-40% price premium, but their superior performance is worth the extra money.
Graphite and molybdenum disulfide are 2 of the most common materials used in bearings. While graphite is a popular material in bearings, it has very poor corrosion resistance and is unsuitable for applications where oil or grease is required. Graphite-based composite materials are another option. They combine the benefits of both graphite and ceramic materials. A variety of proprietary materials have been developed for high-temperature use, such as graphite and MoS2.
Wood bearings have been around for centuries. The oldest ones used wood and Lignum Vitae. These materials were lightweight, but they were incredibly strong and durable. Wood bearings were also lubricated with animal fats. During the 1700s, iron bearings were a popular choice. In 1839, Isaac Babbitt invented an alloy containing hard metal crystals suspended in a softer metal. It is considered a metal matrix composite.

Applications of bearings

bearing
Bearings are used in many different industries and systems to help facilitate rotation. The metal surfaces in the bearings support the weight of the load, which drives the rotation of the unit. Not all loads apply the same amount of force to bearings, however. Thrust and radial loads act in distinctly different ways. To better understand the different uses of bearings, let's examine the various types of bearings. These versatile devices are essential for many industries, from automobiles to ships and from construction to industrial processes.
Cylindrical roller bearings are designed to support heavy loads. Their cylindrical rolling element distributes the load over a larger area. They are not, however, suited to handling thrust loads. Needle bearings, on the other hand, use small diameter cylinders and can fit into tighter spaces. The advantages of these types of bearings are numerous, and many leading producers are now leveraging the Industrial Internet of Things (IIoT) to develop connected smart bearings.
As a power generation industry, bearings play an essential role. From turbines to compressors, from generators to pumps, bearings are essential components of equipment. In addition to bearings, these components help move the equipment, so they can work properly. Typically, these components use ball bearings, although some roller bearings are used as well. In addition to being efficient and durable, these types of bearings also tend to be built to meet stringent internal clearance requirements and cage design requirements.
In addition to bearings for linear motion, bearings can also bear the weight of a rotary part. Depending on the application, they can be designed to minimize friction between moving parts. By constraining relative motion, bearings are used to reduce friction within a given application. The best-designed bearings minimize friction in a given application. If you're in the market for a new bearing, NRB Industrial Bearings Limited is an excellent source to begin your search.

Types of bearings

bearing
The type of bearings you choose will have a significant impact on the performance of your machinery. Using the right bearings can increase efficiency, accuracy, and service intervals, and even reduce the cost of purchasing and operating machinery. There are several different types of bearings to choose from, including ball bearings and flexure bearings. Some types use a fluid to lubricate their surfaces, while others do not.
Plain bearings are the most common type of bearing, and are used for a variety of applications. Their cylindrical design allows for a relatively smooth movement. Often made of copper or other copper alloy, they have low coefficients of friction and are commonly used in the construction industry. Some types of plain bearings are also available with a gudgeon pin, which connects a piston to a connecting rod in a diesel engine.
Magnetic bearings are the newest type of bearing. They use permanent magnets to create a magnetic field around the shaft without requiring any power. These are difficult to design, and are still in the early stages of development. Electromagnets, on the other hand, require no power but can perform very high-precision positioning. They can be extremely durable and have a long service life. They are also lightweight and easy to repair.
Another type of bearing is needle roller. These are made of thin, long, and slender cylinders that are used in a variety of applications. Their slender size is ideal for a space-constrained application, and their small profile allows them to fit in tight places. These types of bearings are often used in automotive applications, bar stools, and camera panning devices. They have several advantages over ball bearings, including the ability to handle heavy axial loads.

Cost of bearings

A wide range of factors affect the cost of aerospace bearings, including the bearing material and its volatility. Manufacturers typically use high-grade steel for aircraft bearings, which are highly affected by fluctuations in the steel price. Government policies also play a part in the variation in trade price. The implementation of COVID-19 has changed the market dynamics, creating an uncertain outlook for supply and demand of aerospace bearings. New trade norms and transportation restrictions are expected to hamper the growth of this industry.
Demand for aerospace bearings is largely driven by aircraft manufacturers. In North America, aircraft manufacturers must meet extremely high standards of weight, performance, and quality. They also must be lightweight and cost-effective. This has resulted in a rising cost of aerospace bearings. The market for aerospace bearings is expected to grow at the highest CAGR over the next few years, driven by increasing investments in defense and aerospace infrastructure across Asia-Pacific.
Hub assemblies are also expensive. A wheel hub will cost between $400 and $500 for 1 set of bearings. In addition to this, the speed sensor will be included. The average cost of wheel bearings is between $400 and $500 for 1 side, including labor. But this price range is much lower if the bearing is a replacement of an entire wheel assembly. It is still worth noting that wheel hub bearings can be purchased separately for a lower price.
Replacement of 1 or 2 wheel bearings will depend on the model and year of the vehicle. For a small car, 1 rear wheel bearing can cost between $190 and $225, whereas 2 front wheel hubs can cost upwards of $1,000. Labor and parts prices will vary by location, and labor costs may also be covered under some warranty plans. If you decide to have it done yourself, be sure to ask multiple shops for estimates.

Inspection of bearings

bearing
To maintain bearing performance and prevent accidents, periodic inspections are essential. In addition to ensuring reliability, these inspections improve productivity and efficiency. Regular maintenance includes disassembly inspection, replenishment of lubricant and monitoring operation status. Here are some common ways to perform the necessary inspections. Keep reading to learn how to maintain bearings. After disassembly, you must clean the components thoroughly. Ensure that the bearings are free of burrs, debris, and corrosion.
Ultrasound technology is an excellent tool for monitoring slow-speed bearings. Most ultrasound instruments offer wide-ranging sensitivity and frequency tuning. Ultrasound can also be used to monitor bearing sound. Ultra-slow bearings are usually large and greased with high-viscosity lubricant. Crackling sounds indicate deformity. You can also listen for abnormal noise by plugging a vibration analyzer into the machine. Once the machine shows abnormal noise, schedule additional inspections.
Ultrasonic inspection involves using an ultrasound transducer to measure the amplitude of sound from a bearing. It is effective in early warnings of bearing failure and prevents over-lubrication. Ultrasound inspection of bearings is a cost-effective solution for early diagnosis of bearing problems. In addition to being a reliable tool, ultrasonic testing is digital and easy to implement. The following are some of the advantages of ultrasonic bearing inspection.
Dynamic quality evaluation involves the use of a special fixture for measuring bearing deformations under low shaft speed and light radial load. The size of the fixture influences the value of the deformations. A fixture should be sized between the diameter of the sensor and the roller to ensure maximum precision. The outer deformation signal is more sensitive with a larger sensor diameter. A vibration-acceleration sensor is used for the contrast test.

China Best Sales Hydraulic Cylinder for Hydraulic Press Machine with Servo Motor     with Free Design CustomChina Best Sales Hydraulic Cylinder for Hydraulic Press Machine with Servo Motor     with Free Design Custom

China Professional Haoshou Hlka-50c Hydraulic Leverage Clamp Cylinder Lever Clamp Cylinder for Machine Fixture in The Automotive Industry (same as Kos-MEK LKA) with Free Design Custom

Product Description

PRODUCT DESCRIPTION
 

Model HLKA-50C Hydraulic Leverage Cylinder
Application Car industry, Manufacturing Plant, Machinery Repair Shops, Farms, Construction works, Others
Bore of cylinder (mm) 50
Bore of piston(mm) 20
Total stroke (mm) 29.5
Clamping stroke(mm)  26.5
Pressure area push (cm2) 19.63
Fluid Filtered Oil
Range of temperature 10°C~ 70°C
Max operation pressure (kg/cm2) 100 kg/cm2
Range of pressure (kg/cm2) 5~70 kg/cm2

 

Why Checking the Drive Shaft is Important

If you hear clicking noises while driving, your driveshaft may need repair. An experienced mechanic can tell if the noise is coming from 1 side or both sides. This problem is usually related to the torque converter. Read on to learn why it's so important to have your driveshaft inspected by an auto mechanic. Here are some symptoms to look for. Clicking noises can be caused by many different things. You should first check if the noise is coming from the front or the rear of the vehicle.
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hollow drive shaft

Hollow driveshafts have many benefits. They are light and reduce the overall weight of the vehicle. The largest manufacturer of these components in the world is CZPT. They also offer lightweight solutions for various applications, such as high-performance axles. CZPT driveshafts are manufactured using state-of-the-art technology. They offer excellent quality at competitive prices.
The inner diameter of the hollow shaft reduces the magnitude of the internal forces, thereby reducing the amount of torque transmitted. Unlike solid shafts, hollow shafts are getting stronger. The material inside the hollow shaft is slightly lighter, which further reduces its weight and overall torque. However, this also increases its drag at high speeds. This means that in many applications hollow driveshafts are not as efficient as solid driveshafts.
A conventional hollow drive shaft consists of a first rod 14 and a second rod 14 on both sides. The first rod is connected with the second rod, and the second rod extends in the rotation direction. The 2 rods are then friction welded to the central area of ​​the hollow shaft. The frictional heat generated during the relative rotation helps to connect the 2 parts. Hollow drive shafts can be used in internal combustion engines and environmentally-friendly vehicles.
The main advantage of a hollow driveshaft is weight reduction. The splines of the hollow drive shaft can be designed to be smaller than the outside diameter of the hollow shaft, which can significantly reduce weight. Hollow shafts are also less likely to jam compared to solid shafts. Hollow driveshafts are expected to eventually occupy the world market for automotive driveshafts. Its advantages include fuel efficiency and greater flexibility compared to solid prop shafts.

Cardan shaft

Cardan shafts are a popular choice in industrial machinery. They are used to transmit power from 1 machine to another and are available in a variety of sizes and shapes. They are available in a variety of materials, including steel, copper, and aluminum. If you plan to install 1 of these shafts, it is important to know the different types of Cardan shafts available. To find the best option, browse the catalog.
Telescopic or "Cardan" prop shafts, also known as U-joints, are ideal for efficient torque transfer between the drive and output system. They are efficient, lightweight, and energy-efficient. They employ advanced methods, including finite element modeling (FEM), to ensure maximum performance, weight, and efficiency. Additionally, the Cardan shaft has an adjustable length for easy repositioning.
Another popular choice for driveshafts is the Cardan shaft, also known as a driveshaft. The purpose of the driveshaft is to transfer torque from the engine to the wheels. They are typically used in high-performance car engines. Some types are made of brass, iron, or steel and have unique surface designs. Cardan shafts are available in inclined and parallel configurations.
Single Cardan shafts are a common replacement for standard Cardan shafts, but if you are looking for dual Cardan shafts for your vehicle, you will want to choose the 1310 series. This type is great for lifted jeeps and requires a CV-compatible transfer case. Some even require axle spacers. The dual Cardan shafts are also designed for lifts, which means it's a good choice for raising and lowering jeeps.
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universal joint

Cardan joints are a good choice for drive shafts when operating at a constant speed. Their design allows a constant angular velocity ratio between the input and output shafts. Depending on the application, the recommended speed limit may vary depending on the operating angle, transmission power, and application. These recommendations must be based on pressure. The maximum permissible speed of the drive shaft is determined by determining the angular acceleration.
Because gimbal joints don't require grease, they can last a long time but eventually fail. If they are poorly lubricated or dry, they can cause metal-to-metal contact. The same is true for U-joints that do not have oil filling capability. While they have a long lifespan, it can be difficult to spot warning signs that could indicate impending joint failure. To avoid this, check the drive shaft regularly.
U-joints should not exceed 70 percent of their lateral critical velocity. However, if this speed is exceeded, the part will experience unacceptable vibration, reducing its useful life. To determine the best U-joint for your application, please contact your universal joint supplier. Typically, lower speeds do not require balancing. In these cases, you should consider using a larger pitch diameter to reduce axial force.
To minimize the angular velocity and torque of the output shaft, the 2 joints must be in phase. Therefore, the output shaft angular displacement does not completely follow the input shaft. Instead, it will lead or lag. Figure 3 illustrates the angular velocity variation and peak displacement lead of the gimbal. The ratios are shown below. The correct torque for this application is 1360 in-Ibs.

Refurbished drive shaft

Refurbished driveshafts are a good choice for a number of reasons. They are cheaper than brand new alternatives and generally just as reliable. Driveshafts are essential to the function of any car, truck, or bus. These parts are made of hollow metal tubes. While this helps reduce weight and expense, it is vulnerable to external influences. If this happens, it may crack or bend. If the shaft suffers this type of damage, it can cause serious damage to the transmission.
A car's driveshaft is a critical component that transmits torque from the engine to the wheels. A1 Drive Shaft is a global supplier of automotive driveshafts and related components. Their factory has the capability to refurbish and repair almost any make or model of driveshafts. Refurbished driveshafts are available for every make and model of vehicle. They can be found on the market for a variety of vehicles, including passenger cars, trucks, vans, and SUVs.
Unusual noises indicate that your driveshaft needs to be replaced. Worn U-joints and bushings can cause excessive vibration. These components cause wear on other parts of the drivetrain. If you notice any of these symptoms, please take your vehicle to the AAMCO Bay Area Center for a thorough inspection. If you suspect damage to the driveshaft, don't wait another minute - it can be very dangerous.
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The cost of replacing the drive shaft

The cost of replacing a driveshaft varies, but on average, this repair costs between $200 and $1,500. While this price may vary by vehicle, the cost of parts and labor is generally equal. If you do the repair yourself, you should know how much the parts and labor will cost before you start work. Some parts can be more expensive than others, so it's a good idea to compare the cost of several locations before deciding where to go.
If you notice any of these symptoms, you should seek a repair shop immediately. If you are still not sure if the driveshaft is damaged, do not drive the car any distance until it is repaired. Symptoms to look for include lack of power, difficulty moving the car, squeaking, clanking, or vibrating when the vehicle is moving.
Parts used in drive shafts include center support bearings, slip joints, and U-joints. The price of the driveshaft varies by vehicle and may vary by model of the same year. Also, different types of driveshafts require different repair methods and are much more expensive. Overall, though, a driveshaft replacement costs between $300 and $1,300. The process may take about an hour, depending on the vehicle model.
Several factors can lead to the need to replace the drive shaft, including bearing corrosion, damaged seals, or other components. In some cases, the U-joint indicates that the drive shaft needs to be replaced. Even if the bearings and u-joints are in good condition, they will eventually break and require the replacement of the drive shaft. However, these parts are not cheap, and if a damaged driveshaft is a symptom of a bigger problem, you should take the time to replace the shaft.

China Professional Haoshou Hlka-50c Hydraulic Leverage Clamp Cylinder Lever Clamp Cylinder for Machine Fixture in The Automotive Industry (same as Kos-MEK LKA)     with Free Design CustomChina Professional Haoshou Hlka-50c Hydraulic Leverage Clamp Cylinder Lever Clamp Cylinder for Machine Fixture in The Automotive Industry (same as Kos-MEK LKA)     with Free Design Custom

China Professional Factory Price Customized Hydraulic Cylinder for Pile Driver /Pile Driving Machine with Free Design Custom

Product Description

Data Sheet

Machine Type Heavy-duty hydraulic cylinder
Mounting Type Top flange type
Code No. af002
Pressure Range 21 (Mpa)
Cylinder Diameter 220 (mm)
Speed range 120 (m/s)
Brand Aofa Machinery 
Rod Diameter 175 (mm)
Length 1000(mm)
Max Working Pressure 25(bar)
Velocity ratio 2
Custom tiles Yes
Specifications Ф250-1000, Ф250-600, Ф220-1000, Ф220-600, Ф200-1000, Ф200-600 (the specific price is subject to the customer service quotation)

Product Description
The pile driver cylinder plays a very important role in the field of construction engineering and is an important part to complete the foundation construction. The hydraulic cylinders used by the hydraulic pile driver mainly include outrigger cylinders, walking cylinders, and luffing cylinders. The outrigger cylinders are distributed on the 4 corners of the machine to realize the ups and downs of the main body of the machine, and the cylinders of different heights are used according to different machine models.

Product Characteristics
1.Durable and Reliable Cylinders to Fit Several Models.
2.Rugged and built to last with threaded rod end caps for longer life and better sealing
3.Manufactured with well-known brand seals for durability, quality and performance
 

*Plated Chrome Piston Rod

 

        

*Automatic Welding

 

*#45 Steel

 

*Quality Test

 

 

             Application Scenarios

About Us

HangZhou Aofa Machinery Co., LTD., formerly known as HangZhou Xihu (West Lake) Dis.n CZPT Petrochemical Fitting Corporation, was founded in 1997. Aofa focus on the field of machinery manufacturing, committed to providing cylinder, flange (petrochemical accessories), pin, sheet metal parts and other mechanical products; Heat exchanger, ambient vaporizer, LNG handling arm and other gas engineering products for domestic sales and foreign trade import and export services. Aofa is a leading enterprise who collects production, foreign trade, sales and service. Relying on our technology, taking quality as the core and efficiency as the soul, we aim to bring the best quality mechanical products to our customers, and is committed to becoming a one-stop solution expert of mechanical parts. It is determined to become a one-stop service supplier integrating research and development, production and sales. Enterprises adhere to the "all for the customer" service purpose, implement the "customer first, quality first, service first" business philosophy, the use of omni-channel sales model, to build a global sales network, open Aofa machinery brand development road.
 

Corporate Vision

Becoming an advanced enterprise with international influence.

 

Our Advantages

-Unique Vision and Excellent Strategy
-Skilled and Experienced
-Ingenuity and Innovation
-Standardize Operation and Outstanding Reputation

Aofa always follows the purpose of "providing value products for customers, providing development space for employees, and creating outstanding leading brands in the industry", abides by the enterprise development concept of "creating value by heart", and adheres to the mission of "manufacturing machinery high-quality products, creating a harmonious society". The enterprise gathers many young and promising, positive people with lofty ideals, through the perfect management system and competitive incentive mechanism, aims to provide all-round development space for employees, and create a better future with the enterprise. Scientific management mode, intimate service attitude, for the enterprise to win credibility and public praise. In the fierce market competition to establish a good corporate image, and with many enterprises to establish long-term, stable strategic partnership, for the further development of the enterprise has laid a solid foundation.
 

 

Specifying a Ball Screw

When you need a high-quality ball screw, it is important to select 1 with the proper dimensions and specifications. When you are looking for the best product, you should consider features such as preloading, surface finish, and internal return system. You can learn more about these features in this article. If you're unsure which type of ball screw to select, contact a reputable supplier for further guidance. To find the best product for your needs, click here!
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Brinelling

When specifying a Brinelling ball screw, it is crucial to know how much axial load it can safely bear. The static load capacity, which is given in the catalogue, applies only to pure axial loading, and any radial load that is smaller than 5% of the axial load won't pose a problem. For more information, contact a CZPT engineer. Brinelling ball screw service life calculation should be performed using the following data:
Preload: The amount of load a ball screw can handle during a single revolution. Preload is the load applied before the ball screw starts moving, and the load is usually between 5 and 10 percent of the dynamic capacity. However, a ball screw that is subject to vibration will experience higher preload, requiring more frequent lubrication. The resulting mechanical stress may cause the ball screw to buckle, or cause the nut to re-circulate the balls.
Critical ball speed: The maximum speed at which the ball can move through the ball nut is called the critical ball speed. In contrast, running the ball screw at its critical shaft speed can lead to excessive vibrations, leading to premature failure of the end support bearings and brinelling of the ball track. Thus, it is recommended to operate a ball screw at a lower speed than the critical ball speed to prevent brinelling and plastic deformation of the balls.
False brinelling: False brinelling is a form of Fretting. False brinelling occurs when the bearings are not rotating. The movement will result in depressions or wear marks in the bearing raceway. This will cause noise, wear, and eventual fatigue. If these conditions persist, a newer ball screw should be used to test the system. The machine should be run for several hours and tested before replacing the bearing.

Preloading

The process of preloading ball screws minimizes backlash by applying pressure to the threads in the opposite direction of the screw's direction of rotation. It prevents any movement of the screw relative to the nut. Various methods are used for preloading. A common 1 is to use oversized balls inside the ball nut. A double nut system may also be used. Both methods are equally effective. Regardless of the method used, the end result is the same - minimal backlash and increased efficiency.
In the conventional method of preloading ball screws, the motors operate simultaneously in opposite directions, causing them to have a relative motion of approximately equal magnitudes. This reduces the frictional resistance of the system, resulting in rapid traverse. The system is able to operate with minimal backlash during 110 inches of travel, reducing the heat developed by the drive nuts and the problems associated with ball screw heating. Moreover, this method can be used in a wide range of applications.
Another method of preloading ball screws is known as the ball-select method. This method includes the use of over-sized balls that force the balls into more contacts with the screw and nut than a normal ball screw. The advantage of this method is that it reduces backlash because the balls are not machined to high tolerances. The disadvantage of this method is that the ball screw will cost more to manufacture than a standard ball screw and nut.
A conventional design includes a mechanical mechanism that uses a series of balls to rotate a shaft. The problem of backlash is exacerbated by the mass of the shaft. The mechanical system is more complex than necessary and often requires a lot of effort. The present invention eliminates these problems by providing an improved method and apparatus for driving ball screws. This method provides a more efficient preload force that is dynamically adjustable while the mechanism is operating. The method can also improve friction and wear.
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Internal return system

There are 2 different types of ball screws. The first type is external and the second is internal. The external type uses return tubes that protrude from the ball nut and extend above and around the outside of the screw. The internal type uses a single tube that spans the ball track, while the more common design uses multiple tubes spanning 1.5 to 3.5 ball tracks. The internal system involves a single return tube and several pickup fingers that guide the balls into the tubes.
The external return tube design is an easier, less expensive choice. The external ball return system has limited space but can handle a wide range of shaft diameters and leads. However, its physical size makes it incompatible with many high-speed applications. Therefore, careful consideration should be given to the mounting options. Internal ball return systems are best suited for small leads and ball sizes. Those that need a high speed will likely benefit from the external ball return system.
Internal ball screw technology has also kept pace with the demands of linear drive systems. Ball screw technology is now more durable than ever. Robust internal ball return systems circulate ball bearings through a solid pickup pin. These deflectors help the balls return to the screw in the correct location. They are crucial components in computer-controlled motion control systems and wire bonding. If you're interested in the latest advances in linear screw technology, contact us today.
Ball screws are superior to lead screws in many ways. Ball screws are more efficient than lead screws, converting 90% of rotational motion into linear motion. As a result, they are more expensive than lead screws and acme screws. They also provide a smoother movement over the entire travel range. Furthermore, they require less power for the same performance. It's no wonder that the ball screw is so popular in many different applications.

Surface finish

The surface finish of a ball screw is 1 of the key factors in determining the performance of the system. A ball screw with a good surface finish has superior performance in rolling resistance, backlash, and wear characteristics. However, it is critical to improve the surface finish of a ball screw to achieve precision movement, low wear, and low noise. To achieve this, special wire brushes will be used to polish precision-ground shafts.
For a ball screw to perform well, it must be hard, have a smooth surface, and retain lubricant. The surface finish of a ball screw should be smooth, free of cracks, and retain the lubricant well. Cracks and annealing are both undesirable during the manufacturing process, so a quality machine should be used for its surface finish. During the production process, a CBN cutting insert with full round or gothic arch profile can be used to achieve a high-quality surface finish.
Another finishing operation used in the manufacture of ball screws is lapping. Lapping improves surface quality and travel variation. It involves complex relative movements of abrasive particulates with the workpiece. This removes a thin layer of material from the workpiece, improving its surface quality and dimensional accuracy. The lapping process can be carried out under low-pressure conditions. It also enhances the friction torque and lubrication.
In lapping experiments, friction torque has the largest influence on travel variation and surface roughness. A friction torque of about 1 N x m is optimum. In addition, rotational speed has only a minimal effect. The best combination of these parameters is 1-1.5 N x m and 30 rpm. The minimum surface finish of a ball screw is around 800 mesh. The smallest variation in travel is observed at around half-way through the travel.
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Lubrication

Proper lubrication of ball screw assemblies is critical to maintain optimum performance and life. Ball screw assemblies should be lubricated with grease, which is introduced directly into the ball nut. The lubrication port can be located at various locations on the product, including on the flange or in the external threads of the ball nut. Some ball nuts also feature a zerk fitting for easier lubrication.
The lubrication of ball screws is required in the case of operating conditions over 100oC. The minimum load for a ball screw is usually realized with a preload force. The lubricant is conveyed through the narrow lubrication gap due to the relative movement of the 2 surfaces. The increased viscosity of the lubricant enables separation of the contact surfaces. To avoid over-lubrication, it is important to check the lubricant level regularly.
The oil used in lubrication of ball screw assemblies can be either mineral or synthetic. The oil is composed of mineral or synthetic oil, additives, and a thickening agent, such as lithium or bentonite. Other thickening agents include lithium, barium complexes, or aluminum. The lubricant grade NLGI is a widely used classification for lubricating greases. It is not sufficient to choose a specific type of lubricant for a particular application, but it provides a qualitative measure.
Despite being essential to the performance of a ball screw, lubrication is also essential to its lifespan. Different types of lubricant offer corrosion protection. Before using a lubricant, make sure to thoroughly clean and dry the ball screw. If there is any buildup of dirt, it may damage the screw. To prevent this from occurring, you can use a solvent or lint-free cloth. Lubrication of ball screw assemblies can greatly extend the life of the assembly.

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