Compounding & Mixing.For the second straight NPE NPE NullPointerException (Java)
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NPE Nutrition Program for the Elderly show, the focus in compounding is on twin-screw machines that deliver more speed and torque--thus more output--than ever before. No fewer than six suppliers of twin-screw compounders are showing such machines. There's something to see in in-line systems as well. And there's plenty of news in PVC PVC: see polyvinyl chloride.
in full polyvinyl chloride
Synthetic resin, an organic polymer made by treating vinyl chloride monomers with a peroxide. mixers and pelletizing Pelletizing or pelletising is the process of compressed or molding of product into the shape of a pellet. A large range of different products are pelletized including chemicals, iron ore, animal compound feed, and more. equipment, too.
Twin-screws show muscle
Higher speed and torque have been the battle cry of twin-screw machine builders since the K'95 show in Germany, when Krupp Werner & Pfleiderer introduced its first Mega Compounder, and Berstorff unveiled its Ultra Torque machine. At NPE 2000, no fewer than six machine builders will display high-speed/high-torque machines. While all this power generally comes at a 10-20% or higher price premium, the cost is at least partly offset by the fact that a new-generation machine reportedly outperforms a larger-sized machine from a previous generation.
At NPE, suppliers showing high-powered machines for the first time include American Leistritz Extruder Corp., Somerville, N.J., which is unveiling the HP Series of twins; B&P Process Equipment and Systems, Saginaw, Mich., which is displaying its just-introduced CT Series in sizes from 25 to 133-mm; and Kobelco Stewart Bolling, Inc., Hudson, Ohio, which is introducing the HyperKTX line.
Meanwhile, KW&P, Ramsey, N.J., is extending its line with the new ZSK ZSK Zoological Society of Korea 58-mm Mega Compounder for wood-flour processing (a developing trend in its own right). Berstorff Corp., Florence, Ky., is showing the ZE Ultra Torque machine line and the ZE Ultra Glide series of high-output laboratory and small-lot production machines. And NFM/Welding Engineers, Massillon, Ohio, is showcasing a 93-mm high-torque, high-speed twin-screw in the TEM TEM
1. transmission electron microscope.
3. transmissible encephalopathy of mink. Series (licensed from Toshiba).
In other extruder developments, Century Extruders, Inc., Traverse City, Mich. is showing the 3+ Extruder for the first time in North America. Introduced at K'98, the machine features a design in which a "ring" of up to 12 screws corotates around a static core.
Entek Extruders, Lebanon, Ore., will be showing three models of its corotating twin-screw extruders--36, 53, and 103 mm--along with a new quick-release die-head assembly.
HPM HPM High Power Microwave
HPM Health and Productivity Management
HPM Hyper Page Mode
HPM Human Performance Modeling
HPM High Pressure Mercury
HPM Hazardous Production Material (1997 Uniform Fire Code)
HPM Human Potential Movement Corp., Mt. Gilead, Ohio, is introducing a 50-mm, twin-screw compounder that it has just started building through a licensing arrangement with APV APV
See: Adjusted Present Value Baker Perkins of the U.K.
Farrel Corp., Ansonia, Conn., will debut the Ultima Compounder, a two-stage machine that reportedly offers the highest dispersive-mixing capability available. The machine is a combination two-stage continuous mixer and a single-screw extruder on a unitized support frame. Extruder Technologies, Inc., is introducing the ET-20-CE twin-screw extruder that features a quick-change drive unit.
Berstorff is also going the low-torque route with a new machine designed chiefly for shear-sensitive applications. And Buss (America), Bloomingdale, Ill., will extend the operating range and flexibility of its kneader knead
tr.v. knead·ed, knead·ing, kneads
1. To mix and work into a uniform mass, as by folding, pressing, and stretching with the hands: kneading dough.
2. line with the introduction of 3:1 L/D L/D Labor and Delivery
L/D Lethal Dose
L/D Lift/Drag (ratio)
L/D Low Dynamic
L/D Loading / Discharging Rate (shipping) barrel modules that enable its MKS-series kneaders to be custom designed for a range of applications.
Akneader series will be introduced by B&P Process Equipment. Like the Buss Kneader, B&P's new CK and CKS CKS Checks
CKS Center for Korean Studies (UC Berkeley)
CKS Center for Knowledge Societies
CKS Carajas, Para, Brazil - International / Brasilia Brazil (Airport Code)
CKS Crankshaft Sensor machines have a single reciprocating screw that interacts with stationary pins on the barrel wall. Sizes from 30 to 220 mm provide outputs of 11 to 22,000 lb/hr of engineering thermoplastics, shear-sensitive materials, powder coatings, toners, and thermosets thermosets, materials that can not be softened on heating. In thermosetting polymers, the polymer chains are joined (or cross-linked) by intermolecular bonding. Thermosets are usually supplied as partially polymerized or as monomer-polymer mixtures. . The CK Series is said to offer 25-50% higher free volume than competing kneaders, plus screw speeds to 500 rpm. The CKS Series offers up to 1000 rpm and the same free-volume increase for maximum throughput capacity.
Systems that marry compounding with extruded-part production will also be prominent at the show. Leistritz will operate a twin-screw compounding and extrusion line making 40-in.-wide TPO (Twisted Pair Only) Refers to the use of twisted pair wire when other options are available. For example, a TPO suffix at the end of 3com Ethernet adapter model numbers indicates the card has only an RJ45 connector. sheet. Davis-Standard Corp., Pawcatuck, Conn., will also demonstrate inline sheet extrusion from a D-Tex 96.5mm twin-screw compounder.
Plenty of PVC mixers
There's no shortage of news for PVC compounders at NPE. Colortronic Inc., Runnemede, N.J., is introducing the Nova Blend System, which combines technology from Colortronic and Waeschle of Germany to do away with conventional high-intensity batch mixer/cooler systems. Instead, a compact turbine mixer dryblends continuously. The result is savings in time, energy, space, and capital cost.
Caccia Engineering Spa of Samarate, Italy, is introducing new series of PVC turbomixers that reportedly permit throughput increases of 20%. Merlin Process Equipment, Houston (formerly known as Henschel), is introducing the Extex Planetary extruder for PVC calendering calendering, a finishing process by which paper, plastics, rubber, or textiles are pressed into sheets and smoothed, glazed, polished, or given a moiré or embossed surface. , as well as redesigned large vertical mixers and high-intensity mixers. Coronado Engineering, Inc., Kansas City, Mo., will show a redesigned version of the self-contained PVC compounding/blending systems it displayed at NPE '97.
In other batch-mixing developments, Charles Ross and Son Co., Hauppauge, N.Y., is introducing the HV Blade for its line of planetary mixers. It enables mixing ultra-high-viscosity formulations that previously required high-horsepower, double-arm mixers. Draiswerke, Inc., Mahwah, N.J., is bringing out a new-generation Drais Gelimat Compounder, an ultra-high-speed fluxing mixer.
Moving downstream, Beringer of Marblehead, Mass., is introducing the In-Line Water Ring Pelletizer, featuring a straight-through flow path and rates up to 5000 lb/hr. Color and material changeovers are reportedly quicker because there is no 90[degrees] bend in the flow path that is typical of crosshead cross·head
A beam that connects the piston rod to the connecting rod of a reciprocating engine.
Noun 1. crosshead - a heading of a subsection printed within the body of the text
At the booth of Black Clawson Converting Machinery, Fulton, N.Y., look for an improved version of its automatic pelletizer knife-adjustment system. Upgrades include faster and more powerful computer hardware and software.
Conair in Pittsburgh will unwrap the Model 208 strand pelletizer with a new slide-front design that allows tool-less maintenance and cleaning. It runs up to 2000 lb/hr.
Cumberland Engineering, S. Attleboro, Mass., has enhanced enhancements the Accrapak Model 900/8 strand pelletizer. It has an overhung o·ver·hung
Past tense and past participle of overhang.
Suspended from above: an overhung door. rotor for easy cleaning and gear-driven feed rolls. Pellet length can be adjusted by a simple gear change.
New from Gala Industries, Eagle Rock, Va., is the MB500 Masterbatch Pelletizing System aimed at small-batch or full-production runs. A new tempered-water system allows quick and thorough cleaning between jobs.
Reiter Corp. is introducing the Primo 60E pelletizer, designed for simplicity and cost-effectiveness, as well as the Droppo mini pelletizer for lab and small-batch applications of low-viscosity polymers.
Scheer Bay Co., Bay City, Mich., will show three new products: ST-l00 and SGS SGS Société Générale de Surveillance
SGS Symantec Gateway Security (appliance)
SGS School of Graduate Studies
SGS Subgrid Scale
SGS Singapore Government Securities
SGS Shell Global Solutions 300A strand pelletizers and WAA (Wide Area Adapter) Any of a variety of ports or adapters that connect to a wide area network (WAN), including RS-232, RS-422 and V.35. dewatering Dewatering (dē′wöd·ər·iŋ) is the removal of water from solid material or soil by wet classification, centrifugation, filtration, or similar solid-liquid separation processes. unit.
Carter Day International, Inc., Winnipeg, Manitoba, is showing for the first time its all-in-one Agglomerate/Dewatering unit for pelletizers, which reportedly eliminates the need for an agglomerate agglomerate
Large, coarse, angular rock fragments associated with lava flow that are ejected during explosive volcanic eruptions. Although they may appear to resemble sedimentary conglomerates, agglomerates are igneous rocks that consist almost wholly of angular or rounded gate. Rotex, Inc., Cincinnati, is showing its new 100 Series Megatex Sensor for removing off-spec pellets. It has independently fed, multi-level screens in a deck arrangement.
New lab tools
For R&D work, Daca Instruments, Goleta, Calif., is showing a new version of its MicroCompounder that can be run from a standard PC. Haake, Paramus, N.J., is introducing its own Micro Compounder, a conical twin-screw machine shrunk down to a size that permits compounding and rheological measurement of batches as small as 8 g of material. Randcastle Extrusion Systems, Inc., Cedar Grove, N.J., has new single-screw compounding extruders with 50:1 or greater L/D and high-speed transmissions.
* More new high-speed/high torque twin-screws.
* Whole new approach to PVC compounding.
* Reciprocating-screw kneaders from a new source.
* Pelletizers designed for quick job changes.