Wenzhou Rockgrand Trade Co., Ltd.
Add.: Room A1501, Xinyi Building, Shifu Road, Wenzhou City, Zhejiang Province, China
Tel.: +86-577-88982822
+86-577-88987278 +86-577-67303322 +86-13706777911
Fax: +86-577-88398508

Quality Control
Sand and Dust Testing

To provide the products which can be used around the world, the first consideration is the application environment.

The sand and dust testing aims at testing the dustproof ability of the product in a simulated sandy and dusty environment, so as to determine whether the product can be used for a long term in a variety of harsh natural environments.

Rain Test

It is well known that a product is subjected to the influence of various liquids in both working state and storage state. The permeation, flow, impact, and accumulation of liquids will affect the performance of the product or even destroy its structure. Hence, the influence of liquids on products should not be ignored.

The purpose of rain test is to check the equipment shell's ability to prevent penetration of liquids as well as the equipment’s working stability and reliability while or after it is eroded by liquids.

Insertion and Extraction Force Test

When designing a product, we will first determine a reasonable temperature rise range. We will try to make it feel best when inserting or extracting the product within this range.

The insertion and extraction force test turns subjective feeling into objective data, thereby facilitating product design, improvement, and delivery inspection.

High and Low Temperature Test

There are dozens of natural environmental factors that affect the use and service life of electrical products. Among them, temperature has an obvious impact on the product.

Test the physical and other properties of the product in low and high temperatures to check whether the product can meet the application requirements.

Glow-Wire Test

The danger of fire is obvious. In modern life, the incidence of fire caused by electrical equipment is increasing year by year. The components of electrical products may burn due to overload or poor contact.

The glow-wire test is used to evaluate the fire risk of heat stress caused by searing elements or overload resistance within a short period of time.