The Bead Blaster 24R is a highly efficient bead homogenizer with built in refrigeration to protect temperature sensitive molecules from heat degradation and denaturation. The BeadBlaster 24R has true, compressor-based refrigeration – no dry ice, no liquid nitrogen and no air supply needed. Simply set the desired temperature and precool the chamber. Temperature will be maintained throughout the homogenization process to keep samples cool. The BeadBlaster 24R retains many of the features of BeadBlaster 24. The stainless steel tube carrier subjects up to 24 samples to an optimized, high speed, 3D motion, producing high energy impacts between the samples and micro-beads to release cellular contents. Operating parameters are set and displayed digitally, while 50 profiles can be stored in memory and recalled for future use. A brushless motor reduces motor noise and provides maintenance free operation. Features: High capacity – 24x2ml Cooling function to protect temperature sensitive samples True refrigeration – no dry ice, liquid nitrogen or external connections Sealed 2.0ml tubes – eliminates cross contamination Full range of beads in prefilled tubes and bulk available Specifications: Speed Range 4.0-7.0 m/s (in 0.05 m/s increments) Capacity 24 x 2.0ml Cycle Time 1 to 90 sec. (up to 90 sec.) Pause between cycles 0 to 2 min. (1 sec. increments) Max. cycles per program 10 Program Memory up to 50 Accel./Decel Time <4 sec. / <4 sec. Cooling method Compressor Temperature range -10°C to ambient Precool to 0°C <30 minutes Noise Level <68db Dimensions 12.6 x 20.1 x 16.2 in. / 35 x 51 x 41 cm Weight 88 lbs / 40 kg Warranty 2 years Electrical 120V, 50 Hz or 240V, 60 Hz Power 1000W   Package Include: BeadBlaster 24 Refrigerated homogenizer, additional 5ML tube holder