Electrical Motor Specs for Slitting Machine Recoiler - 2.5mm Steel Sheets Coil

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The discussion focuses on the specifications of an electrical motor used for a slitting machine recoiler for 2.5 mm steel sheets. Key specifications include an output of 110 kW, 150 HP, and a speed of 600 RPM, with a constant torque of 60 at 600 RPM and constant HP of 550 at 1800 RPM. The user seeks clarification on the meanings of "constant torque" and "constant HP," which indicate the rated torque and power the motor can sustain without overheating. It is noted that motors can exceed these ratings temporarily, but prolonged overload can lead to overheating. Understanding these specifications is crucial for proper motor application and performance.
Eng_Luqman
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I have This Electrical Motor Used For Slitting Machine Recoiler For Slitting up to 2.5 mm Steel Sheets Coil :

Specifications
Electrical Motor :

OutPut 110 Kw 150 HP 600 RPM

80 VOLTS 213 Amper

Constant Torque : 60 600 RPM
Constant HP : 550 1800 RPM

I want to know what are those meaning ... those datas I found it on the name plate of the electrical motor .

Specially The Both Of (( Constant Torque )) And (( Constant HP ))

The first time I observe this kind of specifications on a motor name plate

Please send me your help as you can

Regards
 
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I think they mean rated (or maximum) torque and power in the steady state.

A motor might have a peak power that exceeds this for a short time. The reason is that the real limitation is temperature, and it takes time for an overloaded motor to warm up.
 

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