Three Phase Motors

The technical specifications are advanced. So the motors are characterized with high quality and reliable performance. They are always applied to series of small machine tools, medical machine and scientific instruments etc. Meanwhile, Sonal Motors are available in International standard frame sizes. Built in robust grey cast iron housings dynamically balanced rotors and accurate control on the uniformity of the air gap minimize vibration and ensure low vibration levels. They are available in a wide range from 0.12 to 50 HP. They enjoy good fame in abroad and domestic market for their wonderful performance.

Specification

Conformance to Standards

All motors comply with the following Indian and international standards:

Salient features of TEFC Standard Motors

• Sonal motors can be continuously overloaded by 10% or can be used up to ambient temperature of 50°C. Temperature rise will be as per Class F limits
• All motors are with degree of protection IP55
• All motors up to 200L frame are designed for 50°C ambient
• 2Z Bearings are standard up to 180L frame which are filled with high temperature grease suitable up to 140°C
• Terminal boxes are large and can be rotated in steps of 90
• Rotors are dynamically balanced with half key
• All foot mounted motors are with integral cast feet
• Outer bearing covers are integral with end shield / flange
• Additional anti tracking protective coating of air drying varnish is applied on the winding overhangs
• Cooling fans are of aerodynamic design resulting in low noise and are bi-directional
• Standard Motors are suitable for mounting with any shaft orientation