Raymond grinding mills are widely used in grinding production lines across various industries, including non-metallic minerals, building materials, and chemicals, due to their high efficiency, energy efficiency, and mature structure. However, in actual use, some users may encounter unstable current, which can reduce equipment efficiency and even affect production safety.
This article will analyze the main causes of unstable current in Raymond grinding mills and, based on the product's performance and structure, provide corresponding solutions. We will also introduce a classic CRRM series machine to help users fully understand and select the right model.
I. Unstable Current: Common Causes and Dangers
Raymond grinding mills must maintain current within the rated range during operation. Abnormal current fluctuations usually indicate abnormal equipment load or system malfunction. Specific causes include the following two points:
✅ 1. Current Fluctuation Caused by Improper Feeding
When the material input is excessive or uneven, the equipment load increases, and the pressure between the grinding roller and grinding ring fluctuates, causing instantaneous current increases or decreases, affecting stable operation.
✅ 2. Air duct blockage causes machine temperature to rise
The air duct is a crucial component of the Raymond grinding mill, transporting hot air and material. Severe dust accumulation in the air duct can restrict air circulation, causing the main unit temperature to rise and the current to deviate from the normal range.
I. Solution: How to maintain stable operation of the Raymond grinding mill?
To ensure safe and efficient operation of the Raymond grinding mill, two aspects should be considered: equipment use and maintenance:
🌾 Properly control the feed rate
Avoid excessive feeding at one time to prevent equipment overload;
Maintain a continuous and uniform feeding rhythm by using a variable frequency drive or automated feeding device;
Adapt the feed rate according to different material properties (such as hardness and moisture content).
📌 Tip: Excessive material input can also cause idling wear of the grinding rollers, shortening their lifespan.
Clean and maintain the air duct system
Regularly check the air duct for blockages, especially areas where dust accumulates.
After clearing dust accumulation, open the residual air duct valve appropriately to increase ventilation and maintain normal operating temperature.
If necessary, install a temperature control system or dust removal equipment to enhance environmental adaptability.
Recommended Equipment: Efficient and Stable Raymond Grinding Mill - CRRM1720A
To achieve efficient and stable grinding operations, it is crucial to select a Raymond grinding mill with optimized structure and reliable operation. The following is a model introduction for the CRRM1720A provided by Cronus:


Main Features of Raymond Grinding Mills:
New grinding mechanism in the main unit: Increases output by 20%-30% compared to traditional Raymond grinding mills;
Optimized airflow design: Evenly distributes airflow, effectively reducing the risk of air duct blockage;
Equipped with a variable frequency classifier: Adjustable finished product particle size range (80-400 mesh);
Energy-saving and environmentally friendly: Equipped with a pulse dust collector and silencer for low noise and emissions;
Intelligent operation: Centralized electronic control system for easy operation and maintenance.
Item | Parameters |
---|---|
Grinding Ring Diameter | 1720 mm |
Number of Grinding Rollers | 5 |
Main Unit Power | 185 kW |
Finished Particle Size Range | 80-400 Mesh Adjustable |
Production Capacity | 8-30 Tons/Hour |
Summary: Maintaining Stable Current is a Prerequisite for Efficient Raymond Grinding Mill Operation
In the powder production process, current is not only an electrical parameter but also a crucial indicator of equipment operating status. By scientifically controlling feed, enhancing air duct cleaning, and selecting high-performance equipment, the problem of unstable current in the Raymond grinding mill can be effectively resolved, ensuring continuous, safe, and efficient operation of the production line.
For users seeking high-quality powder output, choosing professional equipment like the CRRM1720A will significantly improve overall system stability and cost-effectiveness.