The "Brain" of the Electric Forklift —— The Forklift Controller

In modern logistics and warehouse management, electric forklifts, as an important material handling equipment, play an indispensable role. With its green, environmentally friendly, and energy-efficient features, it has gradually become the first choice to replace traditional internal combustion forklifts. As the "brain" of electric forklifts, the forklift controller is of great importance. This article will introduce the functional advantages and applications of the forklift controller in detail to help you better understand this key component.

1. Motor drive and control:

The forklift controller controls the speed and torque of the motor to achieve precise control of the forklift's travel and fork lifting. This control not only ensures the stability and safety of the forklift under different working conditions, but also improves the operational flexibility and work efficiency of the forklift.

2. Battery management:

As the power source of the electric forklift, the state of the battery directly affects the performance and service life of the forklift. The forklift controller has a complete battery management system that can monitor the battery's power, temperature and other parameters in real time to ensure that the battery works in a safe and efficient state. At the same time, the battery life is extended through intelligent charging and protection mechanisms.

3. Energy recovery:

During the braking or descending process of the forklift, the forklift controller can convert the generated kinetic energy into electrical energy and recycle it, further improving the energy utilization efficiency. This energy recovery technology not only reduces energy waste, but also reduces the cost of using the forklift.

4. Fault diagnosis and protection:

The forklift controller has a powerful fault diagnosis function, which can monitor the working status of each component of the forklift in real time, and promptly detect and eliminate potential faults. At the same time, it also has protection functions such as overload, overvoltage, undervoltage, and overheating to ensure that the forklift can automatically shut down under abnormal conditions and protect related components from damage.

With the advancement of science and technology and the rapid development of the logistics industry, forklift controllers are also constantly upgraded and improved. In the future, we can expect the emergence of more intelligent and efficient forklift controllers to inject new vitality into the development of electric forklifts.

With the advancement of science and technology and changes in market demand, forklift controllers are also constantly evolving. Future forklift controllers will pay more attention to intelligence and automation to adapt to complex and changing working environments. At the same time, with the popularization of new energy vehicle technology, electric forklifts will further replace internal combustion forklifts and become the mainstream choice in the market.

As the core component of electric forklifts, the technical level of forklift controllers directly affects the overall performance and market competitiveness of forklifts. With the development of technology, we have reason to believe that future forklift controllers will be more intelligent and efficient, bringing more innovation and changes to the entire logistics industry.

35MnBH Steel Analysis and Application

All the performances of 35MnBH steel could meet the requirements of technical conditions through such measures as micro-alloying, establishing strict and reasonable production engineering as well as narrow control for composition of molten steel based on those of 35MnB.

Mainly used in Excavator and Bulldozer undercarriage manufacturing, 35MnBH steel Requires high purity and uniformity of ingredients to reach good organizational structure, mechanical properties and good quality of the appearance. It’s chemical composition is as following.

Chemical Composition（%）

Low Magnification

Als

General Loosen

Center Porosity

Center Segregation

0.38

0.24

1.24

0.017

0.002

0.21

0.042

0.031

0.01

0.04

0.01

0.0018

0/0

1.0/1.0

0/0

The main spare parts of undercarriage is track link, which is made of 40Mn2 steel or 35MnB steel and plays the role of connecting the track shoes and transmitting power. For the normal Excavator track link, it's made of 40Mn2, but for the Bulldozer or Excavator which working in a serious environment, use 35MnBH steel to make the track link will be the first choice. The physical property is as following.

Grain Size	Hot Upset	End Hardenability HRC			Mechanical Properties
	C.H.T	J1.5	J8	J19	Yield Strength	Tensile Strength	Elongation	Cross-sectional Area Reduction	U-shaped impact
					ReL/Rp0.2	Pm	A	Z	KU2
					(Mpa)	(Mpa)	(%)	(%)	(J)
8	Qualified	56	54	32	835	945	20	64	136

All the oil track link and other high-quality track links manufactured by YINTAI are made of 35MnBH steel bar, this makes our track link have good combination mechanical properties and maximize the life span of each component and minimize production cost per hour.

40Mn2 Steel Characteristic and Application

40Mn2 Steel is to add manganese to ordinary structural steel to significantly strengthens the ferrite in the tissue. This will improve the strength and toughness of the steel. It’s chemical composition is as following.

Chemical Composition of 40Mn2 Steel （%）

C	Si	Mn	P	S	Cr	Ni	Cu	Mo	W	V	Ti
0.41	0.24	1.51	0.029	0.005	0.15	0.01	0.03	0.01	0	0.003	0.004

40Mn2 steel is widely used in manufacturing crawler machine parts which working under heavy loads, such as Excavator and Bulldozer undercarriage parts, crankshafts and so on. It is a medium carbon manganese steel, which has high strength, plasticity and wear resistance. Its machinability and heat treatment process performance are also good. The physical property is as following.

40Mn2 Steel Physical Property

Yield Strenght

ReL(Mpa)

Tension Intensity

(Mpa)

Elongation

A (%)

Cross-sectional Area Reduction

Z(%)

General Loosen

Center Porosity

1015

1020

1060

1070

0/0

0.5/0.5

Most of Excavator track link are made of 40Mn2 steel bar, it has has high strength, plasticity and wear resistance. For higher quality track link assy, YinTai will use 35MnBH steel bar.

Characteristics of Forged Products

Forged steel products are known for their unique characteristics and advantages over other manufacturing methods. Here are some key characteristics of forged steel products:

Strength and Durability: Forged steel products exhibit exceptional strength and durability. The forging process involves applying compressive forces to shape the metal, resulting in refined grain structure and improved mechanical properties. This makes forged steel products highly resistant to impact, fatigue, and wear, making them suitable for demanding applications that require strength and long-term reliability.

Improved Metallurgical Properties: Through the forging process, the internal grain structure of the steel is aligned, which enhances the mechanical properties of the material. It improves the toughness, tensile strength, and overall structural integrity of the product. The controlled heating and cooling during forging also allow for the removal of impurities, resulting in a cleaner and more homogeneous material.

Customizability: Forged steel products offer excellent customizability in terms of size, shape, and design. The forging process allows complex shapes and intricate details to be formed accurately, providing versatility in creating components for various industries. Customized forged products can be tailored to meet specific performance requirements and integrate seamlessly into existing systems or machinery.

Good Fatigue Resistance: Due to the refined grain structure and aligned fibers, forged steel products exhibit superior fatigue resistance. They can withstand repeated loading and high-stress conditions without experiencing premature failure. This makes forged steel components suitable for applications where cyclic loading or dynamic forces are involved, such as automotive parts, machinery components, and aircraft landing gears.

Improved Material Integrity: Forged steel products have a higher level of material integrity compared to cast or machined parts. During the forging process, the superior metallurgical properties enable the steel to maintain its chemical composition and mechanical properties consistently throughout the product. This results in a product with fewer defects, such as voids, porosity, or inclusions, which can weaken the material and compromise its performance.

Cost-Effectiveness: While the initial production costs of forging may be higher compared to other manufacturing processes, forged steel products often offer long-term cost savings. Their durability and resistance to wear and deformation reduce the need for frequent replacements and maintenance. Additionally, the superior mechanical properties can result in improved performance and efficiency, contributing to overall cost-effectiveness.

Overall, forged steel products are valued for their strength, durability, customizability, fatigue resistance, material integrity, and cost-effectiveness. These characteristics make them preferred options for demanding applications, where reliability and performance under extreme conditions are crucial.

YinTai is specialized in the complete set of bulldozer and excavator spare parts,including track chain,track Shoe,track roller,idler,sprocket,etc.We won good reputation around the world.Trustworthy. Welcome to consult!

Forging Applied in Front Idler Manufacture | Yintparts.com

Compared with the casting, the shell body of the forged idler has a more uniform structure, better density, better strength integrity, better dimensional characteristics, and smaller dimensional error. The directional structure has higher performance in overall strength and application capability than the casting.

High Strength

Hot forging promotes the refinement of crystallization and grain, maximizing the material strength and consistency and reducing variation between forgings. The granular flow precisely flows along the shell body contour. These continuous streamlines are conducive to reducing the incidence of fatigue or common failures.

The Reliability

One of the most important advantages of forgings is that they can meet the requirements of the designed structure.

The Structural Integrity

Forging eliminates internal flaws and produces a coherent and uniform metallurgical structure assuring optimum performance. Where stress and corrosion problems of crystals are serious, forgings can ensure long service life and problems free service.

The Uniformity

The application of rolling forging technology makes the uniformity of the front Idler dimension. Dimensional uniformity of closed-die forging results in positive control of critical wall thickness, eliminating deficiencies caused by shifted core in castings. High quality and no separation of steel ingot can eliminate internal flaws and produce a coherent and uniform metallurgical structure. The fatigue strength of creep is three times higher than that of casting.

Friction Welding Applied in Track Roller Manufacture | Yintparts.com

Now more and more new technologies used in Excavator and Bulldozer spare parts manufacture, for example: the friction welding. It has been used in track roller for many years and we are a expert in this area.

Friction welding is a solid-state joining process, which could achieve reliable solder joints and create high-quality, high-strength joints with low distortion. These prolong the working life of the track rollers.

The friction welding track roller has many advantages. In friction welding, the welding allowance of the weldment and the welding power are small, the assembly requirements of the weld are not high, and the electric energy is saved, it is environmentally friendly. Because of high productivity and good quality, it has been widely applied in track roller manufacture.

Why does the friction-welding track roller be better in the wear-resistance and have a longer working lifetime?

Firstly, consumption of raw material: the roller bodies of traditional track roller are connected by the welding rod. but the friction ones are connected by the friction between rollers bodies. So the friction-welding roller will be added more raw material to make sure the roller is perfect to the standard size after welding.

Secondly, inner parts: For the traditional rollers, the welding is done after two processes of maching, so the size of the inner parts are not so precise as friction-welding ones. For the fricion-welding ones, after the weilding, there is one more precise maching with concentric locating to make sure the conformity of inner size,this means the inner parts are more precise with higher standard.

We believe in that there will be more and more new advanced technologies used in Excavator and Bulldozer spare parts manufacture in the future. Our parts will be more stable and have a longer working life. Our durable parts make it possible for your machines to deliver the performance you demand. Protect your investment by always choosing our genuine parts.

How to Maintain Your Undercarriage Parts ?

Undercarriage parts have a huge effect on working performance and walking performance of excavator. Maintenance is a key to walking speed of excavator. How to maintain your “undercarriage parts”? There are some tips as following.

1. Carrier Roller is above the track frame. The function is to carry and keep the track moving in a straight line. If Carrier Roller has a breakdown, Track Link will not work properly. Carrier Roller is added lubricating oil at once. If oil spills occur, you will have to replace this part. Therefore, you should keep the track frame clean. Don’t let the accumulation of dirt and gravel hamper its work.

2. Front Idler is in the front of the track frame. The function is to prop the track up and guide the track to wind correctly. Besides, Front Idler and Track Adjuster work together to maintain a certain degree of tension on the track. So during working and walking, should keep Front Idler running ahead, which can avoid the wear of the track. Meanwhile, Track Adjuster can reduce the vibration and shedding of the track during walking.

3. Sprocket is in the back of the track frame. Because it is fixed on the track frame, it has no shock absorption function. If sprocket moves forward, it will not only cause the abnormal wear of Sprocket and the track, but also have adverse effects on the track frame. The track frame may have early cracking.

4. During working, Track Roller can’t be immersed in mud for a long time. After working, should support the track on one side. Then, Drive walking motor to get rid of dirt and gravel. In winter, should keep Track Roller dry because there is a floating seal between the outer roller of Track Roller and the shaft. If there is water, it will freeze at night. When the excavator is walking the next day, the floating seal is in contact with ice to cause oil spill. When Track roller is damaged, can cause many faults, such as walking deviation, walking weakness and so on.

5. The track motor guard can protect the motor. However, the dirt and gravel also can enter the interior, which making the oil tube of the motor wear out. Moisture in the dirt will corrode the joint of the oil tube, so regularly open the guard and clean up the dirt inside.

How to Maintance Oil Track Link？

Maintaining the oil track link for a bulldozer involves several steps. Here's a general guide on how to perform maintenance on the track link:

1. Clean the Track Link: Start by removing any dirt, debris, or mud that has accumulated on the track link. Use a high-pressure water hose or a pressure washer to wash away the grime. Ensure that the track link is thoroughly cleaned before proceeding to the next steps.

2. Inspect for Damage: Carefully inspect the track link for any signs of damage, such as cracks, excessive wear, or loose Track link maintance components. Look for any bent or broken track links. If any issues are identified, they should be addressed promptly by replacing or repairing the damaged parts.

3. Lubricate the Track Link: Apply a suitable lubricant or oil specifically designed for the track link. Most bulldozer track links have oil seals and lubricating points. Follow the manufacturer's recommendations regarding the type of lubricant to use and the lubrication intervals. Apply the lubricant evenly to all moving parts of the track link, such as pins, bushings, and rollers.

4. Check Tension and Alignment: Ensure that the track link is properly tensioned and aligned. Too loose or too tight track links can lead to premature wear and reduce machine efficiency. Refer to the bulldozer's manual for the recommended tension specifications, and adjust the track link accordingly.

5. Monitor Wear: Regularly monitor the wear of the track link components. Pay attention to the condition of the track shoes, rollers, and sprockets. Excessive wear may indicate the need for replacement and should be addressed promptly.

6. Track Link Adjustment: If the track link becomes too loose during operation, it will affect the machine's performance and increase the risk of damage. Regularly check the track link for proper tension and make adjustments if necessary. Follow the instructions provided in the bulldozer's manual for adjusting the track link tension.

7. Regular Inspections: Perform routine inspections of the track link and other undercarriage components to identify any potential issues early. This includes checking for loose or damaged bolts, abnormal wear patterns, and oil leaks. Promptly address any problems found during the inspections.

Remember to consult the specific maintenance guidelines provided by the bulldozer's manufacturer for detailed instructions and recommendations tailored to your machine. Adhering to regular maintenance schedules and best practices will help ensure the optimal performance and longevity of the bulldozer's track link.

Maximizing Excavator Performance with High-Quality Bottom Track Rollers, Sprockets, and Ground Engaging Tools

Introduction

In the heavy machinery industry, excavators play a crucial role in construction, mining, and earthmoving projects. To maintain peak efficiency and longevity, high-quality undercarriage components are essential. Among these, Bottom Track Rollers, Sprockets and Segments, and Ground Engaging Tools (GET) significantly impact an excavator’s performance, durability, and operational costs.

In this article, we will explore how these key components contribute to the efficiency of excavators, why high-quality materials and precision engineering matter, and how choosing the right supplier can enhance your machine’s productivity and lifespan.

1. Bottom Track Rollers: The Foundation of a Reliable Undercarriage

Bottom track rollers, also known as lower rollers, are vital components in an excavator’s undercarriage system. These rollers support the weight of the machine and ensure smooth movement across different terrains.

Key Benefits of High-Quality Bottom Track Rollers:

Enhanced Durability – Made from hardened steel and treated with heat-resistant coatings, premium track rollers withstand extreme working conditions.
Reduced Wear and Tear – Precision engineering reduces friction and wear, extending the service life of both the rollers and the track chain.
Better Load Distribution – Properly designed rollers evenly distribute machine weight, minimizing stress on the undercarriage.

Signs of Worn-Out Track Rollers:

Excessive noise and vibration during operation.
Uneven track tension leading to misalignment.
Visible cracks, dents, or flattening of the roller surface.

2. Sprockets and Segments: Power Transmission for Optimal Performance

Sprockets and segments play a critical role in transferring power from the engine to the tracks, driving the excavator forward with precision.

Why High-Quality Sprockets Matter:

Superior Material Strength – Forged and heat-treated materials increase wear resistance and toughness.
Extended Track Life – Properly matched sprockets minimize stress on track links, reducing premature failure.
Improved Efficiency – Well-designed sprockets reduce energy loss and enhance fuel efficiency.

When to Replace Your Sprockets and Segments:

Worn-out or hooked teeth.
Uneven wear on the track links.
Decreased machine performance or track slippage.

3. Ground Engaging Tools (GET): Maximizing Digging Efficiency

Ground Engaging Tools (GET) are the front-line components of an excavator that directly interact with soil, rock, and other materials. These include bucket teeth, cutting edges, rippers, and shanks.

Benefits of High-Quality Ground Engaging Tools:

Enhanced Productivity – Sharper, durable GET components increase digging efficiency and penetration.
Lower Operating Costs – Tougher materials reduce frequent replacements, cutting downtime and expenses.
Improved Safety – Well-maintained GET ensures smooth operation, reducing stress on the machine and operator.

Common Signs of Worn-Out GET:

Blunt or broken bucket teeth.
Uneven cutting edges.
Reduced digging performance and increased fuel consumption.

Choosing the Right Supplier for Excavator Parts

Not all excavator parts are created equal. Choosing a reliable supplier ensures you receive high-quality components that extend machine lifespan, reduce maintenance costs, and improve productivity.

At Yint Parts, we specialize in manufacturing premium Bottom Track Rollers, Sprockets and Segments, and Ground Engaging Tools designed for superior performance in demanding conditions. Our products are made using advanced materials and cutting-edge manufacturing techniques, ensuring durability, reliability, and cost-effectiveness.

Why Choose Yint Parts?

✅ High-Quality Materials – Precision-engineered with industry-leading materials. ✅ Strict Quality Control – Rigorous testing ensures durability and performance. ✅ Wide Compatibility – Designed to fit various excavator brands and models. ✅ Competitive Pricing – High-value products at cost-effective rates.

Conclusion: Invest in Quality for Long-Term Excavator Performance

Ensuring your excavator is equipped with durable and high-performing Bottom Track Rollers, Sprockets and Segments, and Ground Engaging Tools is crucial for maximizing productivity and reducing operational costs. Regular inspections, timely replacements, and sourcing from a trusted supplier like Yint Parts will keep your machines running smoothly and efficiently.

The role of heat treatment in the manufacture of steel products

Heat treatment plays a crucial role in the manufacture of steel products. It involves subjecting steel materials to a controlled heating and cooling process to alter their microstructure and properties. The primary objectives of heat treatment are to improve the mechanical properties, enhance the material's performance, and achieve desired characteristics. Here are some specific roles and benefits of heat treatment in steel manufacturing:

Hardening: Heat treatment techniques such as quenching and tempering can be used to increase the hardness and strength of steel. This is particularly beneficial for components that require high wear resistance, such as cutting tools, gears, and bearings.

Annealing: Annealing involves heating the steel to a specific temperature and then slowly cooling it to soften the material and relieve internal stresses. It improves the machinability, ductility, and toughness of the steel. Annealing is commonly used for components that need to be easily formed or welded, such as sheet metal, rods, and wire.

Stress Relief: Welded or mechanically processed steel components often develop residual stresses that can lead to distortion or reduced mechanical properties. Heat treatment can help relieve these stresses, enhancing the dimensional stability and preventing failures.

Transformation of Microstructure: Heat treatment alters the microstructure of steel, which directly influences its mechanical properties. Processes like quenching, tempering, and austenitizing cause phase transformations that result in desired structures such as martensite, pearlite, or bainite. This, in turn, affects the material's hardness, strength, toughness, and ductility.

Case Hardening: Case hardening treatments like carburizing and nitriding create a hard, wear-resistant surface layer on the steel while retaining the toughness of the core. This is useful for applications where resistance to wear, fatigue, and surface contact is necessary, such as gears, shafts, and camshafts.

Dimensional Stability: Heat treatment can help improve the dimensional stability of steel components, reducing the risk of distortion or dimensional changes that may occur during subsequent machining or usage.

Grain Refinement: Heat treatment can refine the grain structure of steel, resulting in finer grains. This can enhance the material's strength, toughness, and fatigue resistance, particularly in high-stress applications.

It's important to note that the specific heat treatment process and parameters depend on the type of steel, desired properties, and intended application of the final product. Skilled heat treatment practitioners follow established standards, procedures, and control measures to ensure consistent and reliable results in the treated steel products.