The MC Middleweight group is composed of the MC35, 50, and 70 robots, each identical in size with various payloads (35kg, 50kg, 70Kg). Middleweight MC Robots feature a standard IP67 wrist and IP54 body, the robot body can be upgraded to IP67 for applications requiring additional protection. An IP67 rating makes the MC middleweights an excellent choice for CNC machine tending applications where the robot will be repeatedly exposed to cutting fluids. High end environmental protection is combined with excellent repeatability of ± 0.07mm and 2050mm of horizontal reach. Extended payload capacity (up to 70Kg / 154Lbs) allows the MC middleweights to carry large parts in demanding high volume applications. The MC middleweight robots are the best choice for many material handling, machine tending, palletizing, vision, and other robot applications.
More details here.