IEC CAT 216 CENTRIFUGE ROTOR AND MICROPLATE CARRIERS 5782 CAT BRAND NEW ORIG BOX

      OVER 11 YEARS SELLING EQUIPMENT WORLDWIDE! 

This listing is for a BRAND NEW INSIDE ORIGINAL BOX: IEC CAT 216 CENTRIFUGE ROTOR AND MICROPLATE CARRIERS 5782 CAT as can be seen in the pictures.

For use with IEC Centra 7, 7R, 8 and 8R Centrifuges 
Holds 2 microplates per carrier.

Rotor and Accessories Balance A balanced load is essential for the safe operation of all centrifuges. An unbalanced load produces vibration and can damage the unit. A 2 gram load imbalance, at a speed of 4600 rpm, imparts a force equivalent to 9.1 kg at rest (20 pounds). Therefore, always make sure that the rotor is loaded symmetrically with a full complement of accessories, and with a full (or paired) set of tubes. Tube adapters should also be installed symmetrically. IEC rotors are dynamically balanced at the factory. IEC matches removable parts (trunnion rings, shields, buckets and carriers) to within 1.0 gram, and stamps the weight on each piece. Check these markings whenever you interchange parts to ensure that opposite parts are matched in weight. The total weight of samples and removable parts loaded in opposing positions must be equal in weight to within 1.0 gram. The position numbers, present on many rotors and adapters, identify opposing tube positions. To obtain good dynamic balance, the opposite loads must not only be equal in mass, but must also have the same center of gravity. Opposing containers must be alike in shape, thickness and distribution of glass or plastic. This is especially important for large containers. Tubes loaded into swinging bucket rotors must likewise be symmetrical around the axis of rotation. Verify this by rotating the entire rotor 180° by hand: the loads should be in the same apparent positions (not in the mirror image). In addition, the loads within each bucket must also be symmetrical around the bucket’s pivot axis. Verify this by ensuring that each bucket is loaded and doesn’t tilt vertically when the rotor is at rest. Maintaining balance within each bucket ensures that the bucket and the tubes swing out horizontally when the rotor reaches operating speed, applying centrifugal force to the bottom of the tubes. Failure to achieve full swing-out causes vibration, premature wear and may resuspend samples.

For example, load tubes in the following manner: 1. Load four tubes. Positions 3, 6, 10, 13 or 2,5,9,12 or 1,4,8,11 2. Load six tubes. Positions 6,7,3,13,14,10 or 5,7,2,12,14,9 or 1,7,4,8,14,11 3. Load an odd number of tubes. Not recommended (unless a dummy tube is used for balance.) Samples of different specific gravities may be processed in the same run, provided that the samples of a given type are balanced around the rotor as though they were the only ones in the rotor. Vibration All centrifuges have critical speeds at which vibration occurs. As the speed increases beyond the critical speed vibration will cease. This inherent condition also occurs during deceleration. An imbalanced load intensifies these critical vibrations. Do not operate this centrifuge continuously at observed critical speeds. Rotor Installation The rotors specified are secured to the drive motor shaft by a hex nut which is tightened or loosened with the wrench. Before placing the rotor onto the shaft, remove the hex nut, then be sure that the tapered hole in the rotor and the taper of the shaft are clean. Taking care not to damage the threads, carefully lower the rotor onto the shaft, then tighten the hex nut to secure the rotor to the motor shaft. NOTE: Do not use any other tool to tighten the hex nut as overtightening could occur and the threads could be damaged. Rotor Removal Use the wrench to loosen the hex nut which holds the rotor to the shaft. Remove the nut by turning it counterclockwise. Use both hands to keep the rotor horizontal and pull the rotor up and off the shaft. Periodic lubrication of the taper will assure easy rotor removal.

 

 

 ! MAGGIUA!!!