Corn thresher quality appraisal

Corn threshing machine is a machine that uses a threshing machine to separate corn from corn cobs. It is a machine widely used in modern agriculture. When the corn thresher is threshing corn, it uses the gap between the nail teeth of the nail drum's rotary motion and the screen to drag down the corn kernels. The kneading action between the nail roller and the screen separates the corn kernels from the corn cobs. The corn kernels and corn cobs are sent out of the machine body through two different outlets with the help of other machinery. The kernels are separated from the sieve holes, the corn cobs are discharged from the rear of the machine, and corn silk and husks are discharged from the air outlet. Cyclic threshing, the cycle of filling-threshing-expelling from the body is continuously carried out.
In the case of corn thresher quality appraisal, Zhongke Testing can provide corn thresher quality appraisal services.

can be divided into rotten cob corn threshers and non-rotten cob corn threshers according to function classification;
can be divided into single ear corn threshers, vertical corn threshers, hammer-type corn threshers, fully automatic feeding corn threshing machines, semi-automatic feeding corn threshing machines, etc.

GB/T 5982-2017 Threshing machine Test method
NY/T 1014-2006 Threshing machine Quality evaluation technical specifications
NY/T 1136-2006 Squeezing corn seed threshing machine Technical conditions
NY 642-2013 Safety technical requirements for threshing machines
NY/T 3532-2019 Technical scrapping conditions for motorized threshing machines
NY 2801-2015 Safety operating procedures for motorized threshing machines
JB/T 13425-2018 Threshing machines Reliability assessment test methods
JB/T 10749-2018 Corn threshing machine

The plaintiff purchased a corn threshing machine and supporting equipment from the defendant. However, during operation and use, a malfunction occurred and the threshing could not occur normally. Even after secondary maintenance, the thresher still did not work properly. Therefore, the plaintiff went to the court to request the termination of the contract and ordered the defendant to refund the plaintiff's purchase price.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the corn thresher involved in the case.
appraisal analysis results:
appraisal analysis expert group discussed the relevant information and on-site investigation of the corn thresher involved in the case and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
The thresher has poor performance and poor applicability. It is not suitable for threshing local bract corn and is not suitable for loader loading operations. The operating efficiency is low and cannot reach the production efficiency stated in the thresher's instructions.