What spare parts are required for a single-station motor rotor testing machine, and how should inventory be managed to ensure availability?

What spare parts are required for a motor rotor (single-station) testing machine, and how should inventory be managed?

The following are some specific recommendations regarding spare parts and inventory management for motor rotor (single-station) testing machines:

Spare parts:

1. mold: as a key component directly involved in testing, a certain number of molds need to be prepared for replacement and repair.

2. rotor: as the main processing object of the tester, it is necessary to prepare sufficient rotors according to the production demand.

3. Sensors: Used for detecting and controlling key parameters in the testing process, spare sensors need to be prepared to ensure production continuity.

Safeguard inventory setup:

• Quantifying demand and supply uncertainty: First, the uncertainty in demand needs to be quantified, i.e., the accuracy of the forecast and the error between the actual demand and the forecast. In mathematical statistics, we use “standard deviation” to quantify the uncertainty of demand.

  
  

• Requirement of availability: According to the requirement of service level, for example, it is hoped that there will be no shortage of stock 95% of the time, the corresponding z-value (quartile of standard normal distribution) is 1.65, which can be used to calculate the guaranteed stock.

  
  

• Safeguarded Stock Calculation Formula: The safeguarded stock can be calculated by the following formula: SS = z * SQRT(σd^2 * μL + σL^2 * μd^2), where SS is the safeguarded stock, z is the z-value corresponding to the service level, σd is the standard deviation of the demand, μL is the mean of the supply cycle, σL is the standard deviation of the supply, and μd is the mean of the demand.

  
  

• Regular inventory count: Regular inventory count of inventory is conducted to detect inventory abnormalities and omissions in a timely manner and to ensure the accuracy and reliability of inventory data.

  
  

• Reasonable structure: According to the product characteristics and market demand, the inventory structure is reasonably configured to reduce the slow-moving inventory.

  
  

• Informatization management: Improve the automation and intelligence of inventory management with the help of informatization technology and management tools.

The above spare parts and safety stock settings ensure the normal operation and maintenance of the motor rotor (single-station) testing machine and reduce production delays caused by missing spare parts.

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