Standard Extended Core Cast Iron 280M Frame
Dedicated 280M frame for 125hp/90kW high power, integrally cast thickened cast iron with surrounding integrated base ribs. It bears long-term high-frequency impact loads without frame distortion or cracking.
High-grade Ultra-thin Cold-rolled Silicon Steel Magnetic Assembly
Thin laminated sheets narrow core gaps to cut hysteresis loss drastically, lowering excitation current under rated power and reducing electromagnetic vibration & noise simultaneously.
Corona-resistant Class F Vacuum Pressure Impregnated Windings
Stator coils adopt anti-corona Class F insulation. Vacuum pressure varnish fully permeates all winding gaps to resist high-frequency VFD pulses and maintain stable insulation without breakdown in dusty & humid environments.
Continuous Heavy-duty Output With Ample Margin
The extended core reserves abundant electromagnetic safety margin, supporting stable operation under 125% short-time overload. Perfect for large mills, heavy extruders and round-the-clock mining conveyors without overcurrent tripping.
Integrated Layered Heat Dissipation Structure
Double staggered widened cooling ribs and balanced large fan form layered air ducts for even heat distribution, avoiding local high temperature damage to windings during long-hour full-load operation.
Universal Compatibility With Full Mounting Standards
Heavy cast iron housing only, compatible with all national standard mounting types B3/B5/B14/B35/B34. Direct replacement for old heavy machinery without cutting or reworking base frames.
Q:What standard speed options are available for the 90kW cast iron motor upon delivery?
A:We have 2-pole, 4-pole, 6-pole and 8-pole models in regular stock. Low-speed multi-pole variants are equipped with enlarged cooling fans to guarantee heat dissipation.
Q:What bearing model is fitted on both ends of the 280M high-power motor as standard?
A:Model 6318 heavy-duty deep groove ball bearings are installed on front and rear ends for high-impact continuous operation. Refill high-temperature grease every 2500 running hours.
Q:The motor has standard IP55 protection, can it work long-term in forging workshops splashed with cutting fluid?
A:Yes. Double-sealed terminal box and rust-proof cast iron housing block splashing cutting fluid, just regularly clean oil stains accumulated on cooling ribs.
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