Explosion-Proof Electric Double Drum Scraper Rake Mine Winch

Electric Scraper Winch Application

2JP,2JPB series scraper winch is mainly use in metal mine and other coal mine's pit and ore's 
carrying and filling working,is applicable to the scraping which ground is horizontal or the slope 
not more than 44 degree.  
Do you know the difference between 2JP and 2JPB electric scraper winch? 
For 2JP electric scraper winch,the motor is non-explosion proof.
For 2JPB electric scraper winch,the motor is explosion proof. 
For " 2 ",it means the drum's quantity is two.
For  "J",it means electric winch.
For " P",it means the electric winch use for scraping.
For "B",it means the explosion proof electric winch.

Parameter of 2JP-7.5  Explosion-Proof Electric Double Drum Scraper Rake Mine Winch