Dr. Tech BL-1800B Heavy Duty High Performance Commercial Blender - Black. This commercial high-speed blender is equipped with an industrial powerful motor with speed of up to 37,000rpm at high speed and down to 16,000rpm at low speed. The blender is built with double automatically protective electric circuit (thermal/current protector). The built-in thermal sensor keeps track of how hot the motor gets and will automatically shut down the motor if the motor is overheating. The blender also comes with 2000c.c high quality tempered transparent plastic container. So buy this product and you can Get Free Shipping on a Dr. Tech BL-1800B Heavy Duty High Performance Commercial Blender - Black for $169.99 at Rakuten.com, a $230 Savings!