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What is a low-noise grinding machine
source：English website | Release time：2025年07月17日1. Low noise design principles and techniques:
Structural optimization: Some grinding machines adopt a sunken design, such as the MTW European version grinding machine from Liming Heavy Industry, which makes the equipment run more smoothly and reduces vibration noise caused by unstable components. In addition, the shape and size of key components such as grinding discs and rollers should be designed reasonably to ensure that the material is subjected to more uniform forces during the grinding process, reducing the noise generated by abnormal friction and collision.
Shock absorption measures: Install shock absorption devices at key parts of the grinding machine, such as rubber shock pads, spring shock absorbers, etc., to absorb and buffer the vibration energy generated during equipment operation, and prevent vibration from being transmitted to the outside of the machine body and causing noise.
Sealing noise reduction: Sealing the entire or some key areas of the grinding machine to prevent dust from overflowing and to block the propagation of noise to a certain extent. For example, the Guilin Hongcheng HLM vertical milling machine adopts an integral sealed negative pressure operation system, which is both environmentally friendly and can reduce noise.
Transmission system improvement: Using excellent transmission technology and components, such as bevel gear integrated transmission (MTW European version milling machine), three wheel gear wedge belt transmission (MMD series pneumatic milling machine), etc., the transmission is smooth, the power transmission efficiency is high, and the noise caused by friction and slippage of transmission components is reduced.
Installing a silencer: Install silencers in the fan, air duct, and other parts of the grinding machine to effectively control the aerodynamic noise generated during equipment operation.
2. Representative models and features:
HLM series vertical grinding machine: Developed by Guilin Hongcheng, it is an energy-saving and excellent grinding equipment that integrates drying, grinding, grading, and conveying. The entire system of this device has low vibration and noise, and adopts an overall sealed negative pressure operation system and an air box pulse dust removal system. There is no dust overflow, which can achieve low-noise and environmentally friendly production; High grinding efficiency, low power consumption, large feed particle size, and easy adjustment of product fineness.
Longitudinal swing series grinding machine: Based on the upgrade of traditional Raymond grinding machine technology, it adopts a longitudinal swing grinding roller device to improve grinding efficiency, equipped with a forced turbine classifier to expand the particle size range, and combined with a negative pressure two-stage dust collection system to achieve dust control. Featuring low vibration and low noise characteristics, the output is increased by more than 40% compared to traditional models when the total power remains unchanged, and the unit power consumption is reduced by 30%. It is suitable for non-metallic mineral grinding with Mohs hardness ≤ 7 and humidity ≤ 6%.
MTW European version powder mill: a patented product that adopts a curved air duct with an internal outlet direction that is conducive to material dispersion and less prone to material blockage; The new hanging cage type powder selection machine is controlled by frequency conversion, and the fineness of the finished product can be adjusted and controlled, greatly improving the powder selection efficiency. The sunken design ensures smooth operation, minimal vibration, and low noise; The spindle drive system and fan drive system both use thin oil lubrication, with long oil change cycles and low maintenance frequency.
MMD series pneumatic milling machine: It is the main machine of flour milling equipment in flour mills, mainly relying on a pair of grinding rollers with speed difference and relative rotation to strip wheat and grind it into flour. The fast and slow rollers are driven by a three wheel toothed wedge belt, which has high transmission power, smooth operation, and low noise; The two side frames of the grinding machine are of an upper and lower split structure, and there are vibration damping pads at the connection between the upper and lower parts, which also helps to reduce noise.
3. Advantages:
Environmental Protection and Occupational Health: Low noise grinding machines meet environmental requirements and can reduce noise pollution to the surrounding environment, creating a healthier working environment for operators and reducing the likelihood of occupational diseases such as hearing loss caused by long-term exposure to high noise environments.
Production stability: Low noise design often accompanies optimization of equipment structure and operational stability, making equipment operation more stable and reliable, reducing equipment failure problems reflected by abnormal noise, and improving equipment continuous working time and production efficiency.
Application scenario adaptability: In some places with strict noise restrictions, such as factories around cities, production workshops near residential areas, etc., low-noise grinding machines can meet production needs while avoiding disputes caused by noise problems and expanding the application scope of equipment.
Changshu Jindu Plastic Industry Co., Ltd
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