* What are the poles of an electric motor?

 The poles of an electric motor are nothing more than the positive pole or the negative pole of the magnet (similar to that of a magnet). The minimum number of poles of an electric motor is two, one negative and the other positive. The winding and construction of an electric motor with 2, 4, or 6 poles is carried out to vary the speed of the motor. The frequency of the alternating current at 50 Hertz defines a change of direction of 50 cycles or times per second. Each cycle or change of frequency creates two magnetic fields for each pole. Transforming into a mathematical formula, we will have: 2 (magnetic field) x 50 (frequency) x 60 (transformation of frequency from seconds to minutes) Since the frequency varies depending on the various nations or countries, simplifying the mathematical formula, we will have: 120 x Hz The calculation of the motor speed depends on the rotation speed of the magnetic field and the frequency of the current, which is usually 50Hz in Europe, related to the number of poles that will result.

In conclusion, we can say that the more poles we have, the lower the number of revolutions will be. For example, a two-pole motor in Europe will have the following number of revolutions:

Number of revolutions = (120x50) = 6,000/2 = 3,000 revolutions/min

Precision Combination Bench Machine: Detailed Information

Precision combination bench machines are essential tools for high-precision work in mechanical and manufacturing fields with electronic variation of speed through digital inverter. This specific model offers a range of advanced features that ensure excellent results and ease of use for the operator.

Key Features

• Adjustable and Swiveling Head: The machine head can be swiveled in various directions and adjusted in height, allowing for greater versatility and adaptability to different types of machining.
• Micrometric Depth Adjustment: This system allows for precise adjustment of machining depth, essential for achieving accurate results. Ideal for operations that require high precision.
• Depth Stop Index and Automatic Tap Reversal: A mechanism that allows setting the maximum machining depth, automatically stopping the operation once the desired depth is reached, and reversing the tap direction for efficient and safe processing.
• Emergency Reversal Device with Button on the Feed Lever: A safety system that allows immediate reversal of the machine's movement in case of an emergency, simply by pressing a button located on the feed lever.
• Ground Work Table with Two T-Slots and Lighting System: The work table is ground to ensure a flat and uniform surface and is equipped with two T-slots for secure clamping of pieces. Additionally, an integrated lighting system ensures optimal visibility during machining operations.

Quality and Construction

• Selected and High-Quality Materials: The machine is constructed using high-quality materials, chosen to ensure durability, resistance, and precision over time.
• Tested According to UNI 8620 Standards: Each machine undergoes rigorous testing according to UNI 8620 standards, ensuring the product meets high quality and safety standards.

Operator Benefits

These features combine precision, safety, and versatility, making the precision combination bench machine an indispensable tool for professionals who require excellent results in mechanical machining operations. The micrometric adjustment and advanced safety devices, along with the robust construction and high-quality materials, ensure that each operation can be performed with maximum reliability and precision.

Typical Applications

• Precision Mechanics Laboratories
• Mechanical Workshops
• Manufacturing Sector
• Prototyping Departments
• High-Level Hobbyist Use

Conclusion

Investing in a precision combination bench machine means equipping yourself with an advanced and versatile tool, capable of elevating the quality of mechanical machining operations. Thanks to its innovative features and robust construction, this machine represents an excellent choice for those seeking precision and reliability.