About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

Vibratory Grinding Equipment General Kinematics

Vibratory grinding solutions are more compact, taking up less room and making them easier to install. The use of vibration, combined with grinding media, significantly increases the number of material impacts per minute, decreasing extraction time, and creating a more desirable fractured product.

Common problems and solutions of grinding wheel in

61 行  2020-6-18  The vibration is caused by the excessive connection length between the grinding

Grinding Chatter and Vibrations SpringerLink

Grinding is also viewed as an unpredictable process because of the large number of variables involved and inadequate understanding of the relationships between those variables and the grinding process performance. That is particularly true of vibration in grinding operations, commonly referred to as grinding

Effect of grinding forces on the vibration of grinding ...

2000-11-1  The vibration behavior of the grinding machine spindle system is conditioned by both the vibration characteristics of the assembly components, i.e. shaft–bearing–housing system and the external grinding process forces. While vibration characteristics of the shaft–bearing–housing components were approached by many reliable mathematical models , , , , , , little attention was given to study the effect of the external grinding forces on the vibration behavior of the grinding

What We Do - Accretech SBS

In order for the wheel of a grinding machine to accurately cut, produce smooth surface finishes, and generate correct part geometry, it is necessary to prevent vibration in the grinding process. A primary cause of vibration during grinding is the existence of imbalance in the grinding wheel. This is often due to the heterogeneous nature of the ...

Noise and vibration testing solutions for precision ...

2021-6-21  Measuring and optimizing machines and processes quality with noise and vibration analysis Noise and vibration measurement and analysis solutions for machines tools and micro-electronics equipments. Designed for RD and production applications.

Numerical and Experimental Approach for Roll Grinding

2013-12-9  This paper presents a study of a vibration problem in a roll grinding machine. The rolling contact between a metal roll and the grindstone may cause the pattern formation on the roll surface during the grinding operation. A self-excited vibration excitation or so-called regenerative chatter excitation is present in the process.

Grinding Burn Detection - Stresstech

Grinding burns occur when the energy from grinding produces too much heat. Grinding burn decreases hardness and causes tensile residual stress. The grinding process has many parameters that affect grinding quality. Grinding burns may occur if any of following parameters are

Intelligent technology in grinding process driven by

2020-10-1  In the grinding process, the AE signal frequency distribution generated by friction among grinding particles and workpiece, metal deformation and shedding, and particle breakage is within the range of 100−1000 KHz, while the frequency band of mechanical noise is below 100 KHz, and the electrical noise is higher than 1000 kHz . Through certain filtering methods, filtering broadband and

Vibratory Grinding Equipment General Kinematics

Vibratory grinding solutions are more compact, taking up less room and making them easier to install. The use of vibration, combined with grinding media, significantly increases the number of material impacts per minute, decreasing extraction time, and creating a more desirable fractured product.

How to Reduce the Effect of Vibration in Production

2018-9-1  In a production-grinding operation, waviness on the part surface is a potential clue that the machine or process has developed a vibration problem. The effect might be seen in inspection, or if there is a lapping or polishing step, more time might be spent during that step removing the waves.

Measuring vibration on precision grinding machines ...

2016-3-10  Self-excited vibration occurs only during grinding, due to grinding parameters, the process, and certain machine characteristics such as natural frequencies of the machine. During grinding, undulations/waves can start to form on either the workpiece or the grinding

Effect of grinding forces on the vibration of grinding ...

2000-11-1  The vibration behavior of the grinding machine spindle system is conditioned by both the vibration characteristics of the assembly components, i.e. shaft–bearing–housing system and the external grinding process forces. While vibration characteristics of the shaft–bearing–housing components were approached by many reliable mathematical ...

Grinding Chatter and Vibrations SpringerLink

Grinding is also viewed as an unpredictable process because of the large number of variables involved and inadequate understanding of the relationships between those variables and the grinding process performance. That is particularly true of vibration in grinding operations, commonly referred to as grinding

What We Do - Accretech SBS

In order for the wheel of a grinding machine to accurately cut, produce smooth surface finishes, and generate correct part geometry, it is necessary to prevent vibration in the grinding process. A primary cause of vibration during grinding is the existence of imbalance in the grinding wheel. This is often due to the heterogeneous nature of the ...

Noise and vibration testing solutions for precision ...

2021-6-21  Precision Machining Processes. Measuring and optimizing machines and processes quality with noise and vibration analysis. Noise and vibration measurement and analysis solutions for machines tools and micro-electronics equipments. Designed for

Grinding Burn Detection - Stresstech

Grinding thermal damages, also known as grinding burns, will shorten the fatigue life of critical, dynamically loaded components and can lead to severe failures. Grinding burns occur when the energy from grinding produces too much heat. Grinding burn decreases hardness and causes tensile residual stress. The grinding process has many parameters ...

Why vibration is the enemy of the machining process ...

2021-6-2  There are many factors that make modern machining challenging. Some of these challenges are simply consequences of the nature of manufacturing in today’s technological landscape. However some, like machine vibration, can be controlled. This article will explain why vibration is the enemy of machining and what can be done to eliminate this problem. What Continued

Intelligent technology in grinding process driven by

2020-10-1  Based on the above research on the mechanical data system and the characteristics of the grinding process, this paper presents the research architecture of intelligent grinding process driven by data into five layers (as shown in Fig. 1): data acquisition layer, data processing and fusion layer, data mining and analysis layer, data representation and evolution layer, and data service layer.

Vibratory Grinding Equipment General Kinematics

Vibratory grinding solutions are more compact, taking up less room and making them easier to install. The use of vibration, combined with grinding media, significantly increases the number of material impacts per minute, decreasing extraction time, and creating a more desirable fractured product.

How to Reduce the Effect of Vibration in Production

2018-9-1  In a production-grinding operation, waviness on the part surface is a potential clue that the machine or process has developed a vibration problem. The effect might be seen in inspection, or if there is a lapping or polishing step, more time might be spent during that step removing the waves.

What We Do - Accretech SBS

In order for the wheel of a grinding machine to accurately cut, produce smooth surface finishes, and generate correct part geometry, it is necessary to prevent vibration in the grinding process. A primary cause of vibration during grinding is the existence of imbalance in the grinding wheel. This is often due to the heterogeneous nature of the ...

Grinding Chatter and Vibrations SpringerLink

Grinding is also viewed as an unpredictable process because of the large number of variables involved and inadequate understanding of the relationships between those variables and the grinding process performance. That is particularly true of vibration in grinding operations, commonly referred to as grinding

Health and Safety Executive Vibration solutions

2020-4-29  Vibration solutions Page 3 of 107 Health and Safety Executive Contents Introduction 5 How to approach a vibration problem 6 Avoiding pitfalls when introducing vibration control 10 Reduction in vibration exposure case studies 12 Table of case studies sorted by vibration source 14 Case studies 18 1 Semi-automatic cut off machine 18 2 Off-line grinding wheel pre-forming 19

Process control systems for grinding machines -

Process control systems for grinding machines. The balancing of the spindle and grinding wheel is an essential operation in order to achieve the machining’s surface quality and to ensure a long life of the rotary components. The use of our in-process measuring

Grinding Burn Detection - Stresstech

Grinding thermal damages, also known as grinding burns, will shorten the fatigue life of critical, dynamically loaded components and can lead to severe failures. Grinding burns occur when the energy from grinding produces too much heat. Grinding burn decreases hardness and causes tensile residual stress. The grinding process has many parameters ...

Movement Properties of Antiresonance Vibration Mill

2020-12-21  possible to reduce these negative effects by using new construction solutions. Keywords: vibration mill, vibration grinding, antiresonance. 1. Introduction From the beginning of the XX century a constant increase of requirements for grained materials, including materials formed in the milling process, is observed. In effect, there

Simulation of an active vibration control system in a ...

2009-3-1  In this paper, a novel and complete process to simulate an active vibration control system in a centerless grinding machine is presented. Based on the updated finite element (FE) model of the machine, the structural modifications performed to incorporate active elements are detailed, as well as the subsequent reduction procedure to obtain a low-order state space model.

Why vibration is the enemy of the machining process ...

2021-6-2  There are many factors that make modern machining challenging. Some of these challenges are simply consequences of the nature of manufacturing in today’s technological landscape. However some, like machine vibration, can be controlled. This article will explain why vibration is the enemy of machining and what can be done to eliminate this problem. What Continued