Mini Munchy vented for use with scrap
First you had your Mini Munchy. Now comes your Vented Mini Munchy.
The reclaim extruder comes in both air- and water-cooled versions and can extrude as much as 132 pounds an hour.
Munchy said the P65 Vented Mini Munchy works well on plastic reclaim with a high level of ink, or materials that are moist or contain additives that react during processing.
The Oxon, England, firm first showed the vented extruder at Argenpl s in Buenos Aires, Argentina, in April. Munchy will show the machine again in October at K'98 in Dusseldorf, Germany.
Tel. 011 44 1491 832882, fax 011 44 1491 832883, e-mail [email protected] munchy.co.uk.
Leistritz top stuffer works on twin screws
American Leistritz Extruder Corp. has introduced a single-screw top stuffer that works with its modular twin-screw extruders.
A top stuffer is a metering device that feeds fillers, fibers and other materials downstream. When mated with a vented barrel section, a stuffer can push molten plastic back into the extruder in areas where the material tends to go up the vent.
Leistritz of Somerville, N.J., said the single-screw top stuffer often is used in place of a twin-screw side stuffer because it can perform equally well at a lower price.
Tel. (908) 685-2333, fax (908) 685-0247.
Wayne film line is desktop model
Wayne Machine & Die Co. of Totowa, N.J., has built the smallest blown film line in its history—the Bantam system for making lay-flat film as wide as 4 inches.
It sits on a table top and can process most thermoplastics. Coextrusion capabilities are available for films with as many as five layers. Screw diameters on the tiny machine range from one-fourth inch to five-eighths inch.
Tel. (973) 256-7374, fax (973) 256-1778.
Compression molding tackles cabinet doors
A Virginia Beach, Va., company, Sorbilite Inc., has developed a compression molding machine that makes cabinet doors and other woodlike products by combining scrap plastic with fibrous waste, such as agricultural waste, textile waste and wood dust.
The company makes molds using a spray-on-metal process, according to Andrew Pohl, director of technology and development. First, a model is sprayed with a special lacquer. Immediately after that first step, the metal shell is applied by spraying. The sprayed shell is back-filled with an impact- and temperature-resistant material.
Pohl said the process can make a mold in three hours.
Tel. (757) 464-3564, fax (757) 464-6959.
Molders get pick of four robot models
Molders Choice Inc. of Solon, Ohio, is selling a sprue-picker robot in four stroke lengths: 19.7 inches, 23.6 inches, 27.5 inches and 31.5 inches.
The robots mount to the top of an injection molding machine's stationary platen. All four robot models are priced at about $5,000, the company said.
Tel. (216) 349-6174, fax (216) 349-6176.
Metapor porous for thermoforming molds
Thermoforming mold makers now have a new porous aluminum, Metapor from International Mold Steel Inc.
Metapor, which can be easily machined, eliminates the need for drilling hundreds of small holes, needed for conventional aluminum thermoforming tools, the Florence, Ky., company said.
Tel. (800) 625-6653, fax (606) 342-6006.
Mathis probe tests thermal conductivity
Mathis Instruments Ltd. introduced the TC Probe, a nondestructive test instrument for measuring thermal conductivity, heat capacity and density.
The Portable TC Probe gives instant results on an unlimited sample size.
Mathis Instruments is based in Fredericton, New Brunswick.
Tel. (506) 457-1515, fax (506) 453-4510 or e-mail [email protected] is.unb.co.
Pyramid technology uses floating mold
Pyramid Operating Systems, which markets a turnkey system to mold composite products, has developed a new Floating Mold technology for low-pressure, closed-mold tooling.
A Floating Mold traps a liquid between two laminate skins formed from a master model. The technology works on the principle that fluids, such as water, are noncompressive in low-pressure molding ranges.
The mold system offers flexibility, a lower cost that traditional molds for composites and fast mold production, Pyramid said.
When a part design gets changed, instead of creating all new molds or doing expensive mold modifications, the molder only changes the inexpensive composites skins.
The mold system is part of Pyramid's VEC 5.5 Operating System, a portable, self-contained cell that makes large, complex molded parts. VEC stands for virtual engineered composites.
The VEC 5.5 handles everything from batch mixing the compound to molding. Most of the system is automated. Sensors and meters constantly monitor the process, checking temperatures, flow rates, viscosity and other variables. The VEC's footprint measures 24 feet square. It stands 18 feet high.
Pyramid is in Greenville, Pa.
Tel. (412) 588-1000, fax (412) 588-1010, e-mail [email protected] com.net.