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REFERENCE NUMBER: A-2473 SEMI INDUSTRIAL SCALE MULTI NOZZLE ELECTROSPINNING UNIT THE MAJOR ADVANTAGE OF THIS MACHINE IS SCALABILITY, AS IT’S SUITABLE FOR BOTH PRODUCTION LINE AS WELL AS R & D PROJECTS. IT FUNCTIONS WITH 56 NOZZLES ENABLING HIGH PRODUCTIVITY FOR MASS PRODUCTION OF NANOFIBERS, HOWEVER IT CAN ALSO FUNCTION WITH A SINGLE WHEN WORKING ON R & D PROJECTS. ITS UNIQUE DESIGN ENABLES PRODUCTION OF NANOFIBERS AND COMPOSITES, IT ACCOMMODATES FOUR SYRINGE PUMPS AND FOUR HIGH VOLTAGE POWER SUPPLIERS, MAKING IT POSSIBLE TO WORK SIMULTANEOUSLY WITH UP TO FOUR DIFFERENT POLYMERS, INDEPENDENTLY CONTROLLED. MACHINE USES A UNIQUE PATENTED HYBRID ELECTROSPINNING TECHNOLOGY. THIS NEW TECHNIQUE COMBINES THE ADVANTAGES OF BOTH NEEDLE - BASED AND NEEDLE - LESS ELECTROSPINNING, WHICH ARE INCLUDING BUT NOT LIMITED TO: HIGH THROUGHOUT PRODUCTIVITY (FROM THE NEEDLE - LESS), WITH A VERY ACCURATE CONTROL OVER THE PROCESS AND THE FINAL PRODUCT (FROM NEEDLE - BASED ELECTROSPINNING). SPECIFICATIONS: CHASSIS: ELECTROSTATIC PAINTED SHEET METAL FEEDING AREA MATERIAL: PE 1000 (HIGH DENSITY, CHEMICAL RESISTANT) COLLECTOR MATERIAL: STAINLESS STEEL LED ILLUMINATION EXHAUST FAN ATMOSPHERE CONTROL (OPTIONAL) TOTAL WEIGHT: APPROX. 650 KGS DIMENSIONS: 1965 X 2095 X 2012 mm HIGH VOLTAGE POWER SUPPLY NUMBER OF HV GENERATORS: 4 UNITS (1 FOR EACH SOLUTION FEEDING ROD) VOLTAGE RANGE: 0 TO 40 KV VOLTAGE PRECISION: 0.1 KV MAX CURRENT: 0.125 MA HIGH PRECISION MICRO PUMP NUMBER OF PUMPS: 4 UNITS FLOW RATE: 0.01 TO 4464 ML/H (BD 60 ML SYRINGE) FLOW RATE PRECISION: 0.01 ML AVAILABLE SYRINGES: ALL TYPES ARE AVAILABLE FEEDING AREA NUMBER OF NOZZLES ON EACH FEEDING PIPE SET: 14 PCS NUMBER OF FEEDING PIPE SETS: 4 PCS NUMBER OF NOZZLES: 56 PCS SINGLE NOZZLE PRODUCTION: AVAILABLE FEEDING PIPE MATERIAL: ALUMINUM NOZZLE MATERIAL: ELECTRICALLY CONDUCTIVE STAINLESS STEEL NOZZLE INNER DIAMETER: 0.8 mm MINIMUM REQUIRED SOLUTION FOR SINGLE NOZZLE FEEDING: 3 ML MINIMUM REQUIRED SOLUTION FOR EACH FEEDING PIPE SET: 15 ML MINIMUM REQUIRED SOLUTION FOR FULL LOADING: 50 ML SPINNING DISTANCE DISTANCE BETWEEN NOZZLE AND COLLECTOR: 30 TO 280 mm DISTANCE ADJUSTMENT PRECISION: 1 mm COLLECTOR ROLL TO ROLL COLLECTOR FIBER DEPOSITION WIDTH: 550 mm SUBSTRATE WINDING SPEED: 0,01 M/MIN TO 1 M/min REPETITIVE WINDING MODE (OPTIONAL) COATING HOMOGENEITY SYSTEM: X-AXIS REPETITIVE MOTION STROKE OF COATING HOMOGENEITY SYSTEM: 10 MM TO 80 mm SPEED OF COATING HOMOGENEITY SYSTEM: 2 TO 20 mm/SEC UNIQUE USER INTERFACE 12" TOUCH SCREEN CONTROL PANEL WITH WELL DESIGNED USER FRIENDLY INTERFACE FULLY ABLE TO CONTROL ALL PARAMETERS SAVING & RECALLING ALL PARAMETERS VIA RECIPE & RECALL FUNCTION SAFETY FUNCTION SAFE DOOR EMERGENCY BUTTON & SAFETY RELAY HV WARNING LIGHT ELECTRICAL ISOLATED & GROUNDED CABINET OVER CURRENT PROTECTION TECHNICAL REQUIREMENTS POWER: 220 VOLTS AND 50/60 HZ @ MAX 25A GROUNDING: EXTERNAL GROUNDING LINE AREA: MIN. 3000 X 3000 mm Learn More

Federal health officials have now recommended that we cover our faces with fabric during the coronavirus pandemic. But what material offers the most protection?

The Centers for Disease Control and Prevention has posted a no-sew mask pattern using a bandanna and a coffee filter as well as a video on making masks using rubber bands and folded fabrics found at home.

While a simple face covering can reduce the spread of coronavirus by blocking outgoing germs from coughs or sneezes of an infected person, experts say there is more variation in how much homemade masks might protect the wearer from incoming germs, depending on the fit and quality of the material used.

Scientists around the country have taken it upon themselves to identify everyday materials that do a better job of filtering microscopic particles. In recent tests, HEPA furnace filters scored well, as did vacuum cleaner bags, layers of 600-count pillowcases and fabric similar to flannel pajamas. Stacked coffee filters had medium scores. Scarves and bandanna material had the lowest scores, but still captured a small percentage of particles.

If you don’t have any of the materials that were tested, a simple light test can help you decide whether a fabric is a good candidate for a mask.

“Hold it up to a bright light,” said Dr. Scott Segal, chairman of anesthesiology at Wake Forest Baptist Health who recently studied homemade masks. “If light passes really easily through the fibers and you can almost see the fibers, it’s not a good fabric. If it’s a denser weave of thicker material and light doesn’t pass through it as much, that’s the material you want to use.”

Researchers say it’s important to remember that lab studies are conducted under perfect conditions with no leaks or gaps in the mask, but the test methods give us a way to compare materials. And while the degree of filtration for some homemade masks seems low, most of us — who are staying home and practicing social distancing in public — don’t need the high level of protection required for medical workers. More important, any face covering is better than none, especially if worn by a person who has the virus but doesn’t know it.

The biggest challenge of choosing a homemade mask material is to find a fabric that is dense enough to capture viral particles, but breathable enough that we can actually wear it. Some items being touted online promise high filtration scores, but the material would be unwearable.

Dressing Up for Work … at Home
Yang Wang, an assistant professor of environmental engineering at Missouri University of Science and Technology, worked with his graduate students to study various combinations of layered materials — including both air filters and fabric. “You need something that is efficient for removing particles, but you also need to breathe,” said Dr. Wang, who last fall won an international award for aerosol research.

To test everyday materials, scientists are using methods similar to those used to test medical masks, which everybody agrees should be saved for medical workers who are exposed to high doses of virus from seeing infected patients. The best medical mask — called the N95 respirator — filters out at least 95 percent of particles as small as 0.3 microns. By comparison, a typical surgical mask — made using a rectangular piece of pleated fabric with elastic ear loops — has a filtration efficiency ranging from 60 to 80 percent.

Dr. Wang’s group tested two types of air filters. An allergy-reduction HVAC filter worked the best, capturing 89 percent of particles with one layer and 94 percent with two layers. A furnace filter captured 75 percent with two layers, but required six layers to achieve 95 percent. To find a filter similar to those tested, look for a minimum efficiency reporting value (MERV) rating of 12 or higher or a microparticle performance rating of 1900 or higher.

The problem with air filters is that they potentially could shed small fibers that would be risky to inhale. So if you want to use a filter, you need to sandwich the filter between two layers of cotton fabric. Dr. Wang said one of his grad students made his own mask by following the instructions in the C.D.C. video, but adding several layers of filter material inside a bandanna.

Dr. Wang’s group also found that when certain common fabrics were used, two layers offered far less protection than four layers. A 600 thread count pillow case captured just 22 percent of particles when doubled, but four layers captured nearly 60 percent. A thick woolen yarn scarf filtered 21 percent of particles in two layers, and 48.8 percent in four layers. A 100 percent cotton bandanna did the worst, capturing only 18.2 percent when doubled, and just 19.5 percent in four layers.

The group also tested Brew Rite and Natural Brew basket-style coffee filters, which, when stacked in three layers, showed 40 to 50 percent filtration efficiency — but they were less breathable than other options.

If you are lucky enough to know a quilter, ask them to make you a mask. Tests performed at the Wake Forest Institute for Regenerative Medicine in Winston-Salem, N.C., showed good results for homemade masks using quilting fabric. Dr. Segal, of Wake Forest Baptist Health, who led the study, noted that quilters tend to use high-quality, high-thread count cotton. The best homemade masks in his study were as good as surgical masks or slightly better, testing in the range of 70 to 79 percent filtration. Homemade masks that used flimsier fabric tested as low as 1 percent filtration, Dr. Segal said.

The best-performing designs were a mask constructed of two layers of high-quality, heavyweight “quilter’s cotton,” a two-layer mask made with thick batik fabric, and a double-layer mask with an inner layer of flannel and outer layer of cotton.

Bonnie Browning, executive show director for the American Quilter’s Society, said that quilters prefer tightly woven cottons and batik fabrics that stand up over time. Ms. Browning said most sewing machines can handle only two layers of fabric when making a pleated mask, but someone who wanted four layers of protection could wear two masks at a time.

Ms. Browning said she recently reached out to quilters on Facebook and heard from 71 people who have made a combined total of nearly 15,000 masks. “We quilters are very much in the thick of what’s going on with this,” said Ms. Browning, who lives in Paducah, Ky. “One thing most of us have is a stash of fabric.”

People who don’t sew could try a folded origami mask, created by Jiangmei Wu, assistant professor of interior design at Indiana University. Ms. Wu, who is known for her breathtaking folded artwork, said she began designing a folded mask out of a medical and building material called Tyvek, as well as vacuum bags, after her brother in Hong Kong, where mask wearing is common, suggested it. (DuPont, the maker of Tyvek, said in a statement that Tyvek is intended for medical apparel, not masks.) The folded mask pattern is free online, as is a video demonstrating the folding process. In tests at Missouri University and University of Virginia, scientists found that vacuum bags removed between 60 percent and 87 percent of particles. But some brands of vacuum bags may contain fiberglass or are harder to breathe through than other materials, and shouldn’t be used. Ms. Wu used a bag by EnviroCare Technologies, which has said it does not use fiberglass in its paper and synthetic cloth bags.

“I wanted to create an alternative for people who don’t sew,” said Ms. Wu, who said she is talking to various groups to find other materials that will be effective in a folded mask. “Given the shortage of all kinds of materials, even vacuum bags might run out.”

The scientists who conducted the tests used a standard of 0.3 microns because that is the measure used by the National Institute for Occupational Safety and Health for medical masks.

Linsey Marr, a Virginia Tech aerosol scientist and an expert in the transmission of viruses, said the certification method for respirators and HEPA filters focuses on 0.3 microns because particles around that size are the hardest to catch. While it seems counterintuitive, particles smaller than 0.1 microns are actually easier to catch because they have a lot of random motion that makes them bump into the filter fibers, she said.

“Even though coronavirus is around 0.1 microns, it floats around in a wide range of sizes, from around 0.2 to several hundred microns, because people shed the virus in respiratory fluid droplets that also contain lots of salts and proteins and other things,” said Dr. Marr. “Even if the water in the droplets fully evaporates, there’s still a lot of salt and proteins and other gunk that stays behind as solid or gel-like material. I think 0.3 microns is still useful for guidance because the minimum filtration efficiency will be somewhere around this size, and it’s what NIOSH uses.”

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YY-2869 SEMI-AUTOMATIC REWINDING MACHINE, WORKING WIDTH 2200mm – FLIPPING (ALTERNATING WINDING ROLLS) 1. MACHINE STRUCTURE: THE MAIN BODY OF THE MACHINE IS MADE OF A STEEL PLATE STRUCTURE, AND THE REWINDING HAS A UP & DOWN AXIS REWINDING. THE CYLINDER LET OFF AUTOMATICALLY SETS FOR CUTTING, AND HAS FUNCTIONS SUCH AS METER COUNTING, RE-SETTING THE METER TO ZERO, AND AUTOMATIC SPEED INCREASE. 2. PRODUCT USAGE: THIS MACHINE IS MAINLY USED FOR RE-WINDING AND TRIMMING OF VARIOUS PAPERS, PAPER-PLASTIC COMPOSITES, FILM, DECORATIVE MATERIALS AS WELL AS PACKAGING MATERIALS, CLOTH, VINYLS AND SIMILAR MATERIALS. 3. CUTTING TYPE: ROTATING BLADE FOR AUTOMATIC CUTTING. 4. REWINDING ACCURACY ERROR: 0.1%. 5. MAXIMUM UNWINDING DIAMETER: Φ 915mm, WEIGHT 1000KGS. 6. MAXIMUM UNWINDING WIDTH: 2200mm. 7. MAXIMUM REWINDING DIAMETER: Φ420mm, WEIGHT 100KGS. 8. MAXIMUM MECHANICAL SPEED: 200 METERS/MINUTE. 9. COMPLETE MACHINE POWER: 20KW. 10. EQUIPMENT OVERALL SIZE: 2600×2900×1600mm. QUANTITY: 1 Learn More

T-7018 LINE FOR PRODUCING 70 TO 150 DENIER FROM RECYCLED BOTTLES EXTRUDER Φ 160/25 PRODUCT TYPE PET-POY END/POSITION 12 ENDS POSITIONS 24 POSITIONS POSITION/SPINNING BEAM 2 POSITIONS/SPINNING BEAM POSITION DISTANCE (mm) 1500mm SPINNING PACK CYLINDER TYPE, BOTTOM MOUNTED SPINNERET DIAMETER (mm) Φ 90mm CROSS BLOWING AREA 1430mm X 1380mm GEAR PUMP SPECIFICATIONS (CC/REV) 12X3.0CC/REV GEAR PUMP QUANTITY/POSITION 1 OIL PUMP SPECIFICATION (CC/REV) 12X0.12CC/REV OIL PUMP QUANTITY/ POSITION 1 DOWTHERM BOILER/LINE 600L/65KW GUIDE ROLLER SYSTEM (DIAMETER X WIDTH) 160mm X 160mm MIGRATION JET AWA. JAPAN WINDER TWA1800-12ENDS Learn More

YASHA LIST-1310-B FOR LUMMUS COTTON GIN EQUIPMENT LIST American Plant & Equipment is dedicated to providing high-quality industrial machinery and equipment for various manufacturing and processing needs. Below is a detailed list of Lummus Cotton Gin Equipment, designed for efficient cotton processing. These machines are engineered to enhance productivity, reduce waste, and ensure high-quality output in the cotton ginning process. Each piece of equipment is described with its specific function and technical specifications, ensuring you have the right tools for optimal performance in your operations. Learn More

TT-7534 BALTIMORE COMPLETE BOTTLING LINE SIDEL FOR STILL WATER, 14400 BPH, YEAR 2006 1. BRAND: BALTIMORE 2. YEAR: 2006 3. SPEED: 14400 BPH 4. PRODUCTS: WATER (STILL) 5. CONTAINERS: PET 6. FORMATS: 0.50 L, 0.75 L, 1.5 L 7. SAFETY FEATURES: YES 8. MACHINE HOURS: 11000 HOURS 9. FILL TYPE: VOLUMETRIC 10. NECK TYPE: 25 TO 30mm Learn More

TT-6395 BOTTLING LINE SIDEL FOR STILL WATER UP TO 54000 BPH, YEAR 2014 1. SPEED: 54000 BPH 2. CONTAINERS: PET 3. FORMATS: 0.50 L 4. PRODUCT: WATER (STILL) QUANTITY: 1 Learn More

REFERENCE NUMBER: L-1502
MODEL: UE2410
QUANTITY: 1

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P-5075 BUHLER VARIABLE PROFILE ROASTER 20 KILOS

THIS ROASTER OFFERS EXACTLY WHAT CUSTOMERS NEED TO PRODUCE TOP-QUALITY COFFEE. AN INNOVATIVE AND EASY-TO-USE PLC CONTROL SYSTEM ENSURES CONSTANT QUALITY DURING PRODUCTION BUT ALSO RETAINS THE ABILITY TO INFLUENCE THE PROCESSING WHEN NECESSARY. OPTIMIZED PARAMETERS CAN BE SAVED IN THE MACHINE’S MEMORY AND RE-USED. THE MACHINE IS MADE OF STAINLESS STEEL AND OTHER HIGH-QUALITY MATERIALS WHICH PROVIDE SUPERIOR HYGIENE AND MAKE CLEANING COMFORTABLE. THIS ROASTER PROVES THAT DURABILITY AND A MODERN DESIGN CAN BE COMBINED.

THE ROASTER BECOMES A PLUG-AND-PLAY MACHINE BY THE COMBINATION OF SEPARATE COOLING AND HEATING FANS WHICH ALLOW TO ROAST AND COOL AT THE SAME TIME WITH THE INCLUDED CYCLONE. HOT AIR IS THE BEST CHOICE TO ENSURE A UNIFORM ROAST, BECAUSE OF THE HOMOGENOUS HEAT TRANSFER.

THE VARIABLE DRUM SPEED OF THE ROASTING CHAMBER AND THE TWO STEP BURNER ALWAYS DELIVER THE BEST CONDITIONS FOR THE PRODUCT – NO MATTER IF THE BEANS ARE HEAVY AND SMALL AT THE BEGINNING OF THE PROCESS OR IF THEY HAVE ALREADY BECOME LIGHTER TOWARDS TO THE END OF THE ROAST. THE HELICOIDAL BLADES POWERED BY A VARIABLE DRUM SPEED DRIVE OFFER A PERFECT BLENDING AND AN OPTIMAL HEAT EXCHANGE AT ANY TIME OF THE PROCESS. MOREOVER, THE ERGONOMICALLY DESIGNED ROASTER PROVIDES MAXIMUM SAFETY.

THIS ROASTER WAS DESIGNED TO PROVIDE SMALL AND MEDIUM-SIZED COMPANIES WITH A FLEXIBLE HIGH-QUALITY SOLUTION. THE SOPHISTICATED DESIGN OF THE ROASTING MACHINE PLUS MODERN PROCESS TECHNOLOGY ENSURES A HIGH-QUALITY COFFEE PRODUCT THAT IS UNIFORMLY ROASTED – FROM THE SURFACE TO THE CORE OF EVERY SINGLE COFFEE BEAN.

THE COFFEE AND THE HOT AIR TEMPERATURE AS WELL AS THE ROASTING TIME PER BATCH IS PERMANENTLY MONITORED VIA THE TOUCH SCREEN. THE MACHINE’S DESIGN FEATURES AND INSULATING MATERIALS REDUCE INERTIA AND HEAT LOSS TO A MINIMUM, WHICH IMPACTS POSITIVELY ON WORKING ENVIRONMENTS AND FUEL CONSUMPTION.

FEATURES:
AUTOMATIC AND EASY-TO-USE PLC CONTROL SYSTEM WITH INTEGRATED TOUCH PANEL, PARAMETER MEMORY, TEMPERATURE TREND AND SAFETY FEATURES.
GOOD VALUE FOR MONEY.
INDIRECT, CONVECTIVE HOT-AIR SYSTEM FOR UNIFORM ROASTING.
FULL RANGE HEAT CONTROL - BURNER MODULATES BETWEEN 130,000 BTU ALL THE WAY DOWN TO A MERE 20,000 BTU
VARIABLE DRUM SPEEDS OFFER OPTIMAL HEAT TRANSFER AND PRODUCT QUALITY.
FUNCTIONAL AND ATTRACTIVE MACHINE DESIGN MADE OF HIGH-QUALITY MATERIAL.
STATE-OF-THE-ART TECHNOLOGY AND A PLC CONTROL SYSTEM OFFER USER-FRIENDLY AND EFFICIENT COFFEE ROASTING.
A WIDE VARIETY OF GREEN COFFEE CHARACTERISTICS AND BLENDS CAN BE PROCESSED TO HIGH-CLASS COFFEE PRODUCTS.
A USER-FRIENDLY AUTOMATION-PANEL ALLOWS THE PERFECT CONTROL OVER VARIOUS PROCESS PARAMETERS.
UL LISTED AND MADE RIGHT HERE IN MINNEAPOLIS.
GAS CONSUMPTION: RATED AT MAXIMUM - UP TO 150,000BTU (44KW/HR) OPERATES BEST BETWEEN 75 - 80,000 BTU

OPTIONAL FEATURES:
PNEUMATIC FEEDER
PNEUMATIC DESTONER/DISCHARGE UNIT
AFTERBURNER

QUANTITY: 1

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T-9752 KARL MAYER CARBON MACHINES BIAXIAL AND MULTIAXIAL PROPERTIES: SINCE ALL FIBERS POINT IN ONE DIRECTION, THE SCRIM CAN BE IDEALLY DRAPED GOOD SOAKABILITY WITH LITTLE RESIN CONSUMPTION CAN BE DRAPED VERY WELL AROUND CURVES AND EDGES EASY TO CUT ELECTRICALLY CONDUCTIVE, INFUSIBLE HIGH STRENGTH AND RIGIDITY DUE TO GRAPHITE-LIKE FIBER STRUCTURE BIOCOMPATIBLE TRANSPARENT TO X-RAYS LOW SPECIFIC WEIGHT IDEAL FOR SURFACE USE (LITTLE FIBER IMPRINTS) IDEAL FOR PROCESSING WITH EPOXY RESIN! TEXTILE SEMI-FINISHED PRODUCTS MADE OF PRE-SPREAD AND PLANE-PARALLEL LAID FIBERS FORM THE GROUP OF UNIDIRECTIONAL FABRICS. THE FIBERS ARE USUALLY LAID AT 0°, MORE RARELY AT 90°. BY LAYING THE UD FABRICS ALONG THE LINES OF FORCE ACTING IN THE COMPONENT, THE LIGHTWEIGHT POTENTIAL OF THE CARBON FIBER IS OPTIMALLY EXPLOITED. UD FABRICS CONSIST OF ONE OR MORE SUPERIMPOSED FIBER LAYERS FIXED WITH AN EPOXY-COMPATIBLE BINDER THREAD. THE SPECIAL SPREADING TECHNIQUE PRODUCES FABRICS WITH HIGH FIBER PARALLELISM, WITHOUT KNOTS AND FIBER TWIST. SPREAD FIBERS ABSORB THE RESIN BETTER, RESULTING IN HIGHEST LAMINATE STRENGTHS. QUANTITY: 3 LINES Learn More