Key Features Strong and Durable: High-class iron with electrostatic spray molding makes this product rust-resistant, corrosion-resistant, and not easy to wear and deform. Large Capacity: The centrifuge holds six tubes, each with a capacity of 0.004 gallons. It can meet the needs of centrifuging more mixtures at the same time. High Efficiency: The built-in high-grade carbon brush motor can provide a maximum relative centrifugal force of 1790xg, quickly and efficiently separating the mixture. Variable Speed Control: It supports infinite multi-speed regulation(max. speed: 4000rpm ), which can meet different separation needs. How to Operate 1.Open the cover plate and carefully place the sample in the centrifuge tube. (a sample of the same mass must be placed in a symmetrical centrifuge tube with a weight deviation of not more than 0.002 lbs.) 2.Close the cover plate adjust the timer to " 0" and speed to the lowest position. 3.The timer is adjusted to the required time, and the speed is gradually adjusted from low speed to high speed to the required working speed. 4.After using the machine, set the timer and speed to the lowest, place the machine in a dry, ventilated, cool place, and keep it clean. Specification Color: White Style: Modern Material: Iron Process: Electrostatic Spray Molding Mount Type: Desktop Assembly Required: No Power Source: Corded Electric Plug Type: EU Standard Power Supply: 220V 50HZ Speed Control: Knob with Infinitely Variable Speed Control Motor: Carbon Brush Motor Max. Speed: 4000rpm Timing: 0-60 min Noise: ≤ 70db Motor Power: 25 W Max. Relative Centrifugal Force: 1790xg Capacity: 6*20ml/6*0.004gal Power Cord Length: 1.5m/4.92ft Number of Centrifuge Tubes: 6 Each Centrifuge Tube Size: Height: 10.5cm/4.13in Inner Diameter: 1.9cm/0.75in Product Top Diameter: 12cm/4.72in Product Size(D*H): 27*25cm/10.6*9.84in Packing Size: 30*30*28cm/11.81*11.81*11.02in Gross Weight: 4kg/8.82lbs Net Weight: 3.8kg/8.38lbs Package Included 1* Desktop Electric Centrifuge 6* Centrifuge Tubes 1* English Manual Notes  1.The capacity of centrifuge tubes should be: less than 80% and more than 30%. 2.It should be placed on a flat and solid countertop when working. The work table of the centrifuge should be balanced and fixed, and the workroom should be neat, clean, dry, and well-ventilated. After each use, please switch off the power, clean and wipe the inner chamber and rotary head, and close the centrifugal cover. 3.It adopts a series-excited motor, its carbon brush is generally about 500 hours, should be a timely replacement, to prevent the commutator from being worn after the carbon brush is polished. 4.During operation, the weight and length of the two symmetrical centrifuge tubes ( including the test solution ) shall be equal, and if the deviation is large, the two tubes will oscillate.