... and electric excavator ZZJ-800 motors are a kind of DC motor used for metallurgy & hoisting, available for steel rolling machine ... enclosed, self-cooling, IP44, IC4102. Drip-proof, force ventilated with built-on blower. IP23S, IC063. Drip-proof, single pipe ventilated ... , self-ventilated. IP23S, IC016. Totally enclosed, force ventilated with air-to-water heat exchanger. IP44, ICW37A86 (only for ZZJ804 ...