Dow Chemical Co. has developed halogen-free, flame-retardant compounds based on polyolefins.
The DFDA series provides ignition resistance and flame retardation while offering mechanical properties such as high tear strength and tensile strength, abrasion resistance and ease of extrusion. The compounds are aimed at such applications as jacketing and insulation for wire and cable, fiber optics and communication cable. Dow said they also are free of sulfur, lead and antimony.
Dow's Houston-based wire and cable unit featured the materials at the recent Wire 2004 exposition in Dusseldorf, Germany.
Tel. (713) 978-2971, e-mail wire [email protected]
Tech adds Powerline
for 2-component jobs
Tech Group Inc. of Scottsdale, Ariz., has purchased Milacron Inc.'s first all-electric, two-component injection press, a 330-ton Powerline.
The machine uses standard and stack multicomponent, servo-driven molds built by Tech Group. The mold does not use any hydraulics.
Tech Group is a leader in multicomponent molding, running the process on nine injection presses in North America and 11 in Europe.
``We now have a business plan to go after in-mold assembly and multicomponent jobs, and the two-component Powerline is a key part of our technology platform,'' said Bill Gerard, Tech's vice president of engineering.
The 330-ton Powerline uses two reciprocating injection units arranged in an L shape, and a rack-and-pinion clamp drive.
Tech Group initially will direct the machine at development work but will use it for production as needed, Gerlardi said.
Tech has purchased 31 of Milacron's all-electric Roboshot presses during the past few years.
Tel. (513) 536-3470.
lets molder skip step
Mapa GmbH, a multicomponent injection molder in Zeven, Germany, has added a Krauss-Maffei molding and assembly cell to make a disposable baby bottle that has a thermoplastic elastomer nipple integrated with the screw-on top.
Mapa is molding the product in a Class 100 clean room - a smaller room inside a Class 10,000 clean room. Air to the Class 100 area comes only from the Class 10,000 room.
Krauss-Maffei Kunststofftechnik GmbH of Munich, Germany, supplied the injection press and a parts-removal robot. The nippled-lid parts are made and packaged without any operator intervention.
Traditionally, the nipples were molded of latex rubber and the polypropylene screw-on ring was added after molding. Each part had to be disinfected and packaged. By using multicomponent molding and packaging, all inside a clean room, Mapa can skip the disinfection step.
The U.S. headquarters, Krauss-Maffei Corp., is in Florence, Ky.
Tel. (859) 283-0200.
Demag gets specific
Demag Plastics Group's U.S. operation in Strongsville, Ohio, has formed an applications group to help customers design turnkey systems that include the injection molding press, auxiliary equipment, automation and project management.
The company also is touting its ability to specify press configurations for specific applications, give cycle-time guarantees, do process documentation, give technical sales support and conduct mold trials in Strongsville and three other technical centers.
Heading up the applications group is Bob Lewis, who most recently was southeast regional sales manager.
``Molders are making more and more sophisticated products,'' he said. ``Because more is expected of them, they are looking for suppliers who offer value-added services. Rather than tie up their own resources to design, coordinate and manage projects, molders are now partnering with suppliers to handle those services.''
Tel. (440) 876-6325, fax (440) 876-6423 or e-mail [email protected] dpg.com.
Fontijne press line
makes lab samples
Dutch equipment maker Fontijne Grotnes BV has introduced a line of laboratory platen presses to make test samples.
Fontijne has two types of the presses, manual and automatic. The company said the compact machines are simple to operate.
The manual presses, called the THA200 and THB400, are suited for materials that require the ``feel'' of a hand pump. THA200 machines have a single hydraulic pump for opening and closing. The THB400 is equipped with two pumps, one for fast closing and the other for accurate pressing.
The automatic machines are called TP50 and TP1000. The hydraulic cylinder is a double-acting type, with two integrated pumps. Hydraulic pressure automatically adjusts to maintain force. Pressure, time and temperature controllers are mounted on front of the control panel.
Fontijne, based in Vlaardingen, Netherlands, also makes testing machines for thermoformed sheet.
The company makes a range of other types of equipment, some of it exotic, such as machines to make metal tires and rims and presses to compact medical waste and drums of nuclear waste.
The company's U.S. headquarters is in Itasca, Ill.
Tel. (630) 274-0607, fax (630) 875-1201, e-mail [email protected] grotnes.com.
at heart of SIG deal
SIG Corpoplast, the German maker of Blowmax PET blow molding equipment, has signed an agreement to use and market Agr*TopWave LLC's Vision Preform Inspector and PETWallplus inspection systems that measure resin distribution in preforms and bottles.
Agr*TopWave is in Butler, Pa.
The VPI high-speed system provides total control of preforms even before they enter the machine. Preforms with short shots, nicks or oval finishes can be ejected ahead of time
PETWallplus checks for uniform material distribution in a bottle. It can check up to four different measurement locations across the height of the bottles.
In other news, SIG opened a Guadalajara, Mexico, headquarters for SIG Beverages Services SA de CV. SIG claims it has installed more than 1,200 machines. The 48,000-square-foot operation replaces a smaller site in Guadalajara. SIG's U.S. headquarters is in North Branch, N.J.
Tel. (908) 252-9350, fax (908) 252-9352.