In the run-up to the test, we defined practical requirements and the following test criteria:
- Binding quality
- Overall impression
- Functional scope
In order to be able to evaluate these criteria, we have defined several tests for the thermal binding machines. First, the scope of delivery and functions are checked. The devices are prepared according to the manufacturer's specifications and the required warm-up time is stopped.
In the test sequences, the maximum number of sheets is bound into a folder. DIN A4 sheets are used for this purpose. The time required for the binding process and the cooling of the folder is also stopped.
When binding, the user-friendliness, and stability are also checked. Once the folders are bound, their quality and workmanship are assessed.
In order to rule out errors and to ensure the strain of everyday use, each test is carried out in several stages.
The test criteria receive percentages depending on their importance. The final score is then objectively calculated from the test criteria using an algorithm.
Our product selection is based on an observation of the current market. In addition to popular branded products, we also include insider tips in our selection. Criteria such as price and range of functions are an important factor for us. The test field is also determined by analysis and evaluation of customer reviews and external tests (e.g. Stiftung Warentest).
The devices are purchased anonymously or lent to us by the manufacturer. Dealers and manufacturers have no influence on the tests and our evaluation.
As soon as new relevant products come onto the market, our test field is extended by these. The new products go through the same test as the already tested devices.