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QUALITY ASSURANCE

COMPREHENSIVE TESTS FOR PERFECT PRODUCT QUALITY

Quality management is extremely important to us.
To ensure that our products are of perfect quality,
we perform strict and comprehensive tests.
We develop a separate test procedure for each product category.
Our products are then rigorously tested according
to these provisions either directly at the production
location in Shenzhen or at our German headquarters.

COMPREHENSIVE PRODUCT TESTING

TESTING AT PRODUCTION LOCATION IN SHENZHEN (CHINA)


This is how we ensure faster processes. Many items do not need to be shipped specially to Germany for the initial pretest, but can rather be tested directly in Shenzhen according to strict guidelines.


TESTING AT GERMAN HEADQUARTERS


Our headquarters in Germany are equipped with the most modern equipment and are staffed with specialists from all fields of study. The inspections here are strict and comprehensive. We conduct continuous testing on our products, inspecting them from top to bottom. This testing starts with the prototype and continues for every subsequent delivery:

INCOMING INSPECTION


The incoming inspection consists of a random sampling test performed on the
first large delivery of an item and every subsequent delivery.
The protype test is so intensive and comprehensive that the first
delivery usually passes our incoming inspection without any problem.
There may be exceptions, of course,
and in such cases our team of experts handles the situation.
Once QA has certified that the random samples are free of defects,
the items can be shipped directly to our customers.

PROTOTYPE TEST


The first step in the prototype test is ensuring that the device is safe
and functions properly. The tests are conducted
according to applicable directives and internal regulations.
This test is extremely intensive and comprehensive.
Only after it has been determined that the product is free of defects
can the first large order be placed.

GENERAL TESTING PROCEDURE

EXAMPLES OF TESTS

The individual testing procedures for different items are as myriad as our products,
which means that the duration of a complete test varies greatly.
The test duration depends on the complexity of the product and the number of test stations through
which the item must pass, which means it can take several hours or up to several weeks.
Below is a brief look at the testing procedures for power supply units, batteries and backpacks or school bags.

  • POWER SUPPLY UNITS

    The overload test is conducted to simulate a number of situations, for example to determine what happens when a user creates a short circuit and whether the device is still safe after such a short circuit.

    The test for our power supply units usually lasts multiple hours.

    • Function
    • Nominal load
    • Overload
    • Safety tests, e.g. high-voltage test, safety clearance test, etc.
    • Critical components such as safety capacitors, safety resistors and insulating material
  • BATTERIES

    The battery test includes a capacity test to determine whether the specifications match the actual charging capacity as well as various safety tests. These safety tests include a short circuit test, in which a short circuit is simulated in a product that is ready for sale. The test must result in neither a fire nor an explosion. Last but not least is the overload test, which mimics a failure in the charger. This test must also result in neither a fire nor an explosion.

    The battery tests can take a total of 3 to 4 days, depending on the capacity of the battery.

    • Capacity test
    • Sefety test
    • Overload test
  • SCHOOL BAGS & BACKPACKS

    The bags are finally subjected to continuous-use tests to ensure that they can endure a normal life cycle without problems.

    The tests for school bags and backpacks take over a week.

    • Drop tests
    • Friction test
    • Workmanship
    • Seams
    • Zips
    • Tear resistance of zips
    • Durability of closures, shoulder straps and carrying handles
    • Rain protection