octro rummy,The cooling and heating of the sample material is realized with the patented concept of thermal plates, making sample cooling with, e. g., open liquid nitrogen baths or dry ice obsolete. For tempering, the grinding jars are simply placed on top of the thermal plates. When the grinding jars come in contact with the thermal plates, heat is effectively transferred from or to the jars via the tempering device. The patented hermetically sealed fluid design allows to operate the mill with different thermal fluids, ensuring a flexible and safe temperature regulation and requiring only minimal effort for the user. Depending on the operational setup that is built up, the temperature of the thermal plates can be set in the range from - 100 to + 100 °C.
eupen fc,Some applications are improved if the sample material is heated up during the process. Examples for heating are:
dafabet app,The required temperatures and the operational setup depend on the specific application.
Some analytes are modified, destroyed or vaporized if the sample material gets too warm. If specific temperature levels are exceeded, the structure of, for example, proteins, pharmaceutical substances or food ingredients may be essentially changed.
By keeping the temperature at a moderate level throughout the grinding process, temperature-sensitive natural substances are physically preserved in their original state for analysis.
Grinding of coffee beans at low temperatures for natural substance analysis. ,free roulette wheel game
Temperatures below 0 °C are suitable for the embrittlement and homogenization of for example ductile or sticky food. If heavy-metal-free grinding is required, jars of zirconium oxide or tungsten carbide can be used.
If cooled down to - 100 °C, it is also possible to successfully embrittle some polymers.
Fast milling of black Flurocarbon rubber (FKM) by embrittling the sample in two 125 ml jars at – 100 °C. ,d1 baseball
soccer uk news,If using a chiller, powerful wet grinding can be performed at 30 Hz and below room temperature without considering any cooling breaks.
By cooling the sample throughout a mechanochemical process, the formation of undesired derivatives can be prevented. It is also possible to apply some heating, for example to initiate chemical reactions and increase product yields.,rs games
blackjack game free,Fast formation of ZIF-8 at 30 Hz. By keeping the temperature below 0 °C, the formation of non-porous Zeolitic Imidazolate Frameworks (ZIF-8) is inhibited.
The MM 500 control is equipped with two grinding stations for screw-lock jars, available in the materials stainless steel, hardened steel, zirconium oxide and wolfram carbide in different jar sizes up to 80 ml or 125 ml. Heavy-metal-free grinding is possible, also at low temperatures. Ventilation lids allow for ventilation of the jars and for working under inert atmospheres. ,gomax tv live
indianexch,As the MM 500 control can be used with or without cooling, the mill offers a wide variety of applications. It can be used to homogenize, for example, waste, soil, chemical products, coated tablets, drugs, ores, grain, tissue, glass, hair, ceramics, bones, plastics, alloys, minerals, oil seeds, plants, sewage sludge, pills, textiles, wool etc.
|Applications||mechanochemistry, mechanical alloying, size reduction, mixing, homogenization, cryogenic grinding|
|Field of application||agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, food, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals|
|Feed material||hard, medium-hard, soft, brittle, elastic, fibrous|
|Size reduction principle||impact, friction|
|Material feed size*||<= 10 mm|
|Final fineness*||~ 0.1 µm|
|Batch size / feed quantity*||max. 2 x 45 ml|
|Grinding chamber volume||max. 2 x 125 ml|
|No. of grinding stations||2|
|Setting of vibrational frequency||digital, 3 - 30 Hz (180 -1800 min-1)|
|Setting of temperature setpoint||digital, 0 ... -100 °C (only with cryoPad)|
|Setting of sample cooling time||digital, 0 ... 60 min (only with cryoPad)|
|Setting of grinding time||digital, 10 s - 8 h|
|Total grinding time||99 h|
|Number of storable cycle programs||4 (with 99 repeats)|
|Typical mean grinding time||30 s - 2 min|
|Dry grinding/ Wet grinding/ Cryogenic grinding||yes/ yes/ yes|
|Type of grinding jars||screw-lock with integrated safety closure devices|
|Material of grinding tools||hardened steel, stainless steel, tungsten carbide, zirconium oxide|
|Grinding jar sizes||50 ml / 80 ml / 125 ml|
|Electrical supply data||100-120V, 50/60 Hz; 200-230V, 50/60Hz|
|Protection code||IP 30|
|Power consumption||750 W|
|W x H x D closed||690 x 375 x 585 mm|
|W x H x D closed with cryoPad||690 x 485 x 585 mm|
|Net weight||~ 63 kg|
|Connection thread size device input||G 1/4" (inner thread)|
|Connection thread size tubing set||G 3/8" (outer thread)|
|Permissible operating pressure cooling device (provided by customer)||0 ... 5 bar|
|typical pressure range of continous cooling unit e.g. cryostat||1 ... 2 bar|
|permissible pressure range of LN2 supply||1.2 ...1.4 bar|
|Permissible fluids||water, water-glycole mixture, thermal oil, liquid nitrogen|
|Thermal applications||embrittling, cooling, heating, temperature control|
|temperature range of fluids||+100 °C ... -196 °C|
|temperature range of cooling plates||+100 °C ... -100 °C|
|Applications||cryogenic grinding with liquid nitrogen|
|Interface||RS-232 (MM 500 control)|
|Communication connection||via included connection cable|
|Power supply||via external power supply|
|Electrical supply data (input external power supply)||100-230V, 50/60 Hz|
|External power supply classification||Medical grade isolation level|
|Electrical supply data (input cryoPad)||24 V, 1 A|
|Accessories||LN2 Autofill 150L, LN2 Autofill 50L|
|LED status light||yes|
|W x H x D||670 x 110 x 590 mm|
|Net weight||~ 26 kg|
|Connection thread size device input||G 1/4" (inner thread)|
|Connection thread size of stainless steel tubing adapter||UNF 3/4"|
|Permissible pressure range of LN2 supply||1.2 ...1.4 bar|
|Permissible fluids||Liquid nitrogen|
|Emissions||Liquid nitrogen gas, condensation|
|Connection||via included tubing set|
|Exhaust outlet||via included Exhaust adapter and aluminum corrugated tube|
|temperature range of fluids||-196 °C|
|temperature control algorithm||PID temperature control|
|Setting of temperature setpoint||digital, 0 ... -100 °C|
|Setting of sample cooling time||digital, 0 ... 60 min|
football players birthday in may,The grinding jars of the mixer mill MM 500 control perform radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jars and pulverize it. High energy milling is possible by operating at high frequencies up to 30 Hz. The movement of the grinding jars combined with the movement of the balls further causes grinding effects due to friction and additionally result in an effective mixing of the sample. The degree of mixing can be increased even further by using several smaller balls.