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Crimping is a very important and delicate operation often performed by those working in the wiring industry. It consists of crimping (i.e., the physical and electrical connection through pressure) an electrical cable to a terminal element, using special presses that can be semi-automatic or automatic. The connection of the terminal to the cable happens as a result of strong mechanical pressure, which locks and fixes the elements to be joined together through compression and crushing, producing a result similar to a true soldering that ensures electrical contact between cable and terminal. In electrical material manufacturing, crimping requires continuous inspections and checks (one of which, for example, is the tensile test performed with a dynamometer) and for this reason it is not done manually but — as mentioned before — by means of mechanical presses that guarantee a safe and well-executed job.
Bench presses used for terminal crimping come in different models, chosen according to work needs; essentially, they can be divided into two types: semi-automatic and automatic, which differ from the former because they can perform all operations autonomously. Another distinction concerns the presence of a bench: it is possible to purchase simple presses or presses equipped with a work surface where the operation will be carried out.
The various models also differ in size, noise level (an important value considering the operators working with the machine), type of mechanical power supply, and, of course, weight: crimping presses can exceed a ton, so knowing the exact weight is important to establish the location. Especially for bench presses, usually operated under close supervision of specialized workers, it is crucial to carefully read and follow the technical datasheet and user manual to protect both the machine and the operator.
One of the main advantages is the precision of the work performed. Crimping requires a perfect connection without margin for error, so reliable and very accurate tools are necessary. Another appreciated feature is ease of use: these machines often have software that can be easily controlled via a screen (either touchscreen or with buttons) in an intuitive and simple way. Finally, multifunctionality is a key advantage — the ability to perform multiple operations simultaneously (usually these presses also do stripping). All these features allow producing high-quality products, avoiding rework due to mistakes and inaccuracies, thus saving time and resources.
Using crimping presses allows combining functionality and safety. Excellent results can be achieved alongside the guarantee of performing safe work, protecting the operators. However, to ensure this, it is essential to read and follow the instructions in the technical datasheet and user manual. Crimping presses are designed to protect specialized workers from hazards, but personnel must follow all precautions and instructions included in the manual. Common recommendations include wearing protective glasses and possibly hearing protection, connecting the machine to a grounded power outlet to avoid shocks, and not using the press for functions other than those intended. Safety instructions vary by model, and when purchasing from a serious and professional dealer, a contact number is usually provided for technical assistance to resolve problems or doubts correctly.
Good and constant preventive maintenance will keep the crimping press in good condition over time and guarantee excellent performance. Like safety measures, maintenance activities are explained in the user manual and may vary depending on the model. However, some good practices are generally applicable, simple and quick to perform, mainly concerning cleaning, including:
Since there are different press models on the market, each will have specific instructions to ensure optimal performance and longevity.
As mentioned, there are different models of bench crimping presses. How to choose the best one for your needs? To buy the right model, it is essential to know the type of cables you will work with: one of the first characteristics to consider is the cable cross-section, which varies by press. You also need to consider the operations to perform: some presses crimp and strip both single-core and multi-core cables simultaneously. It is important to evaluate stripping capacity (full or partial) and crimping force. Finally, consider noise level and the number of workstations.
This information is usually on the product datasheet, but it is always recommended to consult a sector expert who can answer questions and guide you to the best choice.
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