Recently by the media burst of soybean milk, food processing machines and other appliances in direct contact with food products using the oil problem, affecting the nerves of consumers and producers. For a long time people on food hygiene and safety concerns and increased emotional confusion broke the news of this type of explosive.
However,cast bronze broke out of the information is not complete, there is no sufficient evidence, gave people the impression of a surprised conclusion, and therefore such as mass media microblogging platform can see, this conclusion is based on multi-issue doubts, anger, condemning.
As industry professionals, do not oppose the use of public media tools through the 'broke' in the form of exposing problems within the industry admits brass bushing may be many unknown hidden rules, but rigorous and responsible point of view, both attention and tracking this broke the news media or by the impact of consumers and businesses, it is necessary that broke the news on the issues reflected in some cool-headed analysis, and then make their own judgments and actions.
1, plain bearing the use of lubricants
Such as soybean milk or food processing machines like home appliances, there are two places to use oil, one of the motor bearings, and second,plasic bushing the motor shaft out of 'head case' before the oil envelope (to connect the motor shaft with knives).
Soymilk or food processing machines are widely used motor oil bearing. This is not our common bicycle bearings like ball bearings, lubricating oil is not used as that used in bicycle bearings viscous oil, is not like a car engine as the dip-type liquid injection oil. Oil-bearing in the oil, Mould guide plate very little oil into the clouds with great penetration in the granular micro-porosity (the naked eye can not see) of the sleeve, only when the motor rotation and heating oil will spill from the pores in the bearing surface film. This storage method and storage capacity (less than 0.1 ml / bearings), DU bushing and lubrication, decided not occur 'leakage' phenomenon; the motor and set the location of soybean milk or food processing machine determines the motor structure bearings can not be in direct contact with food.
While in case of 'leakage' of protection technology, is already a very common technology, and soybean milk, or food processing machine in the motor output shaft has at least one seal structure to block the leakage of pollutants may also play a barrier external dust, water vapor and other effects on the motor.
Motor shaft out of 'head case' in front of the envelope used oil into a paste with oil, stored in a small chamber, its storage capacity (mg of magnitude) is sufficient with a complete product life cycle. As may be in direct contact with food, so here's oil and oil seal materials must be food grade.
2, on the cost
It is understood that food-grade grease at the purchase price of a few hundred dollars or more per kg, which is clearly better than industrial grease (about hundreds of dollars per kg) much higher price, selection of industrial food grade grease with oil instead, it seems concerned about the cost of the enterprises have a great temptation.
However, only several common soybean milk, for example, to use the medium price of food-grade lubricants calculation, the cost of each product oil will range from a few cents, and over a hundred dollars if the oil industry than are the incremental costs should be a.
I think this soybean milk brands do not care about the incremental cost of a few cents each and take their own brand kidding, a few hundred dollars for the cost of products, saving a few cents of the cost and thus of the product quality and price, the pros and cons, I believe these companies are smart.
Perhaps some companies care about this sort of incremental cost money and the use of other stand-material, but all are to assume that the soybean milk industry this situation is obviously unfair and inaccurate. Even though some products suspected of using illegal stand materials, need to be able to confirm the authority of detection, rather than the supply chain to do some investigation or inference can be drawn conclusions.