Centrifugal Machine Heavy Duty 4000 RPM Copper Winding For Non Stop Bench Top Doctor Model For Laboratory Purpose. A very unique and heavy centrifugal machine for non stop working. ABS plastic and rust free MS powder coated body. 100% Copper winded rotor motor mounted on very heavy suspension & Vacuum feet for noiseless working for endless hours. Type of product: Laboratory centrifuges; Supply: 220 – 240 Volts 50 Hz single phase. Rotor capacity (ml): 6×15 ml; Type of head: Swing out head. Of tubes: 6; Max. Speed (RPM): 3600 on full load. Bigger Copper Stamping and armature. RCF: 1600; Weight: 6.5 kg. We are the original manufacture of Centrifuge Machines. This is our Heaviest Doctor Model centrifuge machine in its class. There is other machine in the pictures to compare the differences.