EN
Yuyao ZhongHong Electric Appliance Co., Ltd. is located in Yuyao City, Ningbo, Zhejiang Province, with a factory area of 7000 square meters. It is an officially certified super factory with 5 complete production lines and 23 professional laboratory equipment, with a monthly output of 500000 pieces.
Each process in the production process is controlled by dedicated personnel and strictly adheres to national quality inspection standards. Our products include multiple series such as electric shavers, electric hair clippers, women's shavers, electric nose hair clippers, and electric foot grinders, covering mainstream styles in both domestic and international markets. For long-term stable supply to foreign trade companies, cross-border e-commerce, domestic e-commerce, etc., we have our own design team of 4 people, all of whom have more than 5 years of industry experience. On average, more than 10 new products are released every month. Our company's products have CE, ROHS, and FCC certifications, complete qualifications, and guaranteed product quality.
With 15 years of professional manufacturing and a source factory in the industrial belt, ZhongHong Electric looks forward to cooperating with you!
Experience
Employees
Annual output value
Factory area
100
Sets of products
Our factory can meet the production capacity of 250,000 pieces of electric personal-care appliances per month.
From the raw material to the finished production before delivery we have a professional team of engineers and OC colleagues to control the quality.
37 type test items, professional testing, quality guaranteed!
By short-circuiting the positive and negative terminals of the battery, verify whether there will be self-ignition, explosion, etc. when the positive and negative terminals are short-circuited under abnormal working conditions.
After verifying that the product is operating normally, check whether all its performances are within the specified range values, including the no-load/load current values, charging current, and input power of the product.
Verify whether the low battery prompt charging function, full battery prompt function, plug and play function, lock function and water washing function of the product are normal.
Verify whether the safety regulation items: withstand voltage value and leakage current value meet the standard requirements.
Verify whether the product structure meets the requirements and whether a drop will directly cause irreversible damage.
Verify whether the structure meets the design requirements by impacting the weak points of the sample.
Measure the noise level of the product under normal working conditions; Ensure that the product complies with the national noise limit standards.
Verify that the product can operate normally under low voltage conditions.
Verify whether the sharpness of the product meets the requirements for normal use.
Verify whether the product meets the charging and discharging specification requirements:
Discharge time ≥ 90% of the time specified in the product specification
Charging time ≤ 110% of the time specified in the product specification
① Test the charging section of the circuit protection line function: overcharge and overvoltage protection function.
② Test the discharge section of the circuit to protect the circuit function: over-discharge, overload and short-circuit protection functions.
To verify whether the product switch life test can meet the usage requirements, press 10,000 times with normal pressing force (5N).
Verify whether the product can meet the usage requirements after being repeatedly plugged and unplugged at the charging terminal 10,000 times.
Verify whether the product meets the specifications and requirements under the environment of high and low temperature cycling shock. Whether it can be charged and work normally after 48 hours of high and low temperature cycling.
Verify whether the product meets the specifications and requirements in a high-temperature environment. Whether it can be charged and work normally after 48 hours of high temperature.
Verify whether the temperature of the plastic part in contact with the hand and the metal part in contact with the skin meets the requirements after the product has been working continuously for 20 minutes.
Verify whether the product meets the specifications and requirements in a low-temperature environment. Whether it can be charged and work normally after 48 hours of low temperature.
Verify whether the metal and electroplated components of the product meet the requirements of the salt spray test. Are there any problems such as rusting or discoloration after 24/48h salt spray?
Verify whether the product's trouble-free working time meets the usage requirements.
Verify the waterproof performance of the product in accordance with its waterproof requirements.
Verify whether the product's knife head can be cleaned thoroughly with water after 20 minutes of use.
Under constant temperature conditions, detect the maximum temperature of the battery during charging and discharging to see if it exceeds the safety standard temperature for battery use.
Verify the adhesion of the metal painted parts.
Verify the reliability of the product under long-term friction conditions and whether there is any attenuation or other situations.
Verify whether there is any delamination or deformation of the plastic parts of the product when exposed to the sun.
Verify whether there is any delamination or deformation of the plastic parts of the product when they are boiled in boiling water for 10 minutes.
Verify whether the surface roughness of the metal parts of the product is lower than the usage standard.
Verify the magnetic attenuation amount by storing the magnet in a high-temperature environment for a short period and in a normal temperature environment for a long time.
Simulate whether the destructive force of the charging connection parts of the product under abnormal usage conditions is greater than the usage standard.
Verify the impact of finished products on product performance during transportation to avoid situations such as startup during transportation.
Verify whether the outer packaging protection meets the design requirements to avoid problems such as cracking of the outer box and delamination of the color box caused by the outer box falling during transportation.
During transportation, items need to be stacked for a long time. Stacking tests can verify whether the outer box will deform significantly when items several times its own weight are stacked for a long time, thereby affecting the products inside.
Verify whether the disassembly force of the tool head weakens, the magnetic ring comes off, and the contact parts wear out during long-term use.
Verify whether the motor life meets the requirements of the specification sheet.
Confirm whether the motor speed and the tool head speed meet the requirements of the specification sheet.
Verify whether the battery meets the lifespan requirements specified in the specification sheet.
Verify whether the blade meets the requirements of the specification sheet.
ONLINE
Yuyao ZhongHong Electric Appliance Co., Ltd. is located in Yuyao City, Ningbo, Zhejiang Province, with a factory area of 7000 square meters. It is an officially certified super factory with 5 complete production lines and 23 professional laboratory equipment, with a monthly output of 500000 pieces.