Features Variable speed range to 60 rpm Adjustable disc angle from horizontal to vertical Quiet operation Custom disks available Warranty period 3 years The RSM7DC Rotary mixer is suitable for many applications where an end over end action is required, including blood and sample mixing. The tilting head allows for the disc to be held at any angle from horizontal to vertical enabling a wide range of different mixing actions. Clip discs are easily removable, and interchangeable. The special drive system allows for the disc to be stopped for tube placement, without stopping the motor. For heavier or uneven loads the disc can be locked. The unit operates on a low voltage 12Vdc via a power adapter