Colortronic unveils 4 granulator series
Colortronic Inc. introduced four series of granulators - the M65, MS, MTG and MSH.
The M65 features a low-speed, three-knife open rotor design. Rotating end discs give low-heat granulation and reduced friction wear.
MS screenless granulators also offer low-speed operation, eliminating longs and minimizing dust and fines. The adjustable feed chute rotates 360 degrees. MS granulators also have a bed comb design for improved regrind and extra bed comb protection, blade durability and long life for the hardened 8620-alloy steel cutters and double-sided bed combs with four cutting edges.
MTG granulators are compact, with integral sound- proofing. The V-cut rotor design reduces knife wear and eliminates excessive wear on the cutting-chamber side walls, by keeping material moving toward the center.
The MSH central granulators boast a heavy-duty design, for high-throughput jobs.
They feature a completely welded, heavy-steel construction.
MSH units come with a range of rotor types, including temperature-sensitive designs, a V-cut knife and an auxiliary flywheel.
Colortronic is based in Runnemede, N.J.
Tel. (856) 312-9600, fax (856) 312-9696, e-mail [email protected]
Milacron shuttle line adds smallest model
Milacron Inc. of Cincinnati reports the first orders for the smallest model of its new BW F shuttle blow molding machine-marking the completion of the full line of the machine sizes.
The first BW F machine, the BW F16, was launched at NPE 2003. It features fully supported clamps that shuttle horizontally on linear bearings. The second machine size, the BW F24, followed shortly after NPE.
The new, small size, called the BW F4, produces small bottles. The molding machine accepts molds up to 12.4 inches long by 10.6 inches wide
It provides a horizontal shuttle stroke of about 11 inches, with a maximum daylight opening of 5.91 inches.
The double-station model increases width of the machine from 106-126 inches, but stays the same in the other dimensions. That means it doubles output while requiring just 27 percent more floor space.
Milacron said it designed the BW F4 especially for the North American market. It supports trends such as flexible, shorter-run blow molding and easy mold changes. Center-fed Willi Muller die heads allow quick color changes and superior control of radial wall thickness, according to Milacron.
The clamp on the tie-barless machine is distributed evenly by one direct cylinder that transfers force through two deflection-free swivel joint arms onto both mold platens, into the center of the pinch-off areas.
The extruder motion, plus mold and carriage movements are operated by proportional hydraulics in a closed-loop system.
Standard features include pneumatic bottle deflashers fastened to the mold platen and bottle pick-and-place systems.
The company's Uniloy Milacron/B&W Blowmoulding Systems business, based in Berlin, Germany, developed the machine. The machines are assembled in the Uniloy Milacron plant in Polícka, the Czech Republic, where Milacron employs 40.
Applications support is available through FHG Systems Inc., Uniloy Milacron's North American partner on shuttle machines.
Tel. (734) 428-2244, fax (734) 428-1165.
Engel's X-Melt helps HTP mold lens holder
Engel Austria GmbH supplied its X-Melt technology - which blasts melted resin into the mold - to HTP High Tech Plastics AG of NeudÃ¶rfl, Austria, for molding the lens holder for the laser head on a DVD player.
Engel, based in Schwertberg, Austria, said there is no other way to mold the part, which is liquid crystal polymer containing 30 percent chopped-strand reinforcement to produce the two-minute, yet complex, parts for the laser head. HTP molds the upper and lower parts separately, in a four-cavity mold.
To mold the complicated parts precisely - especially their very thin webs and projections - the injection press has to operate within an extremely narrow processing window. That would not be possible with classic micromolding, according to Engel.
X-Melt has allowed HTP to turn out 5 million of the lens holders.
Under X-Melt, the screw precompresses the melt to a high pressure, with the shut-off nozzle in the closed position. For injection, the nozzle opens and the plastic explodes into the mold all at once. The mold cavity is filled in a fraction of a second.
HTP used an Engel E-motion all-electric injection press with a clamping force of 60 tons, instead of a micromolding machine, which would have been limited to that one job.
According to Engel, the repeatability is superior to conventional molding because X-Melt harnesses the physical properties of the compressed plastic melt. That's important for the DVD player lens head, because the part's complex geometry does not permit in-line quality control with monitoring systems - HTP is banking on the repeatability of the machine itself.
Engel officials described the X-Melt application during a pre-K show news conference in Schwertberg.
Tel. +43 (50) 620-0, fax +43 (50) 300-9, e-mail [email protected]
Wilmington promotes wheel blow molders
Big wheels keep on turnin' ... and Wilmington Machinery Inc. reports its big wheels keep getting bigger - wheel blow molding machines, that is.
Wilmington's Series III 60-cavity machine can pump out 4,500 pounds of resin per hour, to make large containers. Smaller sizes are available for turning single-serve juice and dairy containers.
The company said the large-platen rotary machine combines six-layer coextrusion, an electro-mechanical clamp and improved bottle handling. Output ranges from a few thousand to more than 20,000 bottles an hour, with any material or layout configuration.
The Series III uses single or dual parisons with Wilmington's own high-output die heads.
Mold changes are fast and simple, said the company in Wilmington, Del. A radial positioning feature positions the molds to minimize flash and scrap.
Molders can apply clamping force for difficult bottles, such as polypropylene, and have the flexibility to change mold sets and mold lengths.
Tel. (910) 452-5090.
Conforma provides replacement barrels
Conforma Clad Inc., which makes replacement barrels for twin-screw extruders, now offers a barrel measurement program that uses a portable electronic gauge that precisely measures the bore diameters of co-rotating segmented barrels.
The gauge checks the degree of wear and condition of the bore surface, without the need to take apart the barrels.
The device can measure diameters from 50-300 millimeters, with a maximum barrel length of about 17 feet.
The measurements can be loaded into a computer for more analysis, or printed for a permanent record.
Conforma Clad is based in New Albany, Ind.
Tel. (812) 948-2118, fax (812) 944-3254.
Davis-Standard Corp. touts Culisse winder
Davis-Standard Corp. is marketing its Culisse winder to producers of hygienic films and nonwovens, like diaper film and breathable film, because it eliminates the separate steps of slitting and rewinding after the products come from the extruder.
The Pawcatuck, Conn., firm said the Culisse is an alternative to traditional turret winders. The winder can do in-line slitting to widths of 3 inches across a 120-inch web at speeds of 2,000 feet per minute. A scrapless transfer mechanism indexes the new core into position while the transfer is made, without indexing the final roll. Standard turret winders generate scrap during the index cycle of the full roll, according to Davis-Standard.
The Culisse is available with a roll diameter of 40-60 inches. Options include automatic core feed and finished roll removal.
Tel. (908) 722-6000.
Battenfeld christens addition to China site
Battenfeld Chen Extrusion Systems recently opened a 27,400-square-foot addition near its original factory in Shunde, China.
The company is a joint venture between SMS Plastics Technologies Group of Meinerzhagen, Germany, and Hong-Kong-based Chen Hsong Machinery Co. Ltd.
Battenfeld Chen ships 25-35 extrusion lines a year and employs 110 in Shunde.
Tel. +86 (757) 2238-0110, fax +86 (757) 2238-0195, e-mail [email protected]
Gusmer introduces Pro metering units
Polyurethane equipment supplier Gusmer Corp. of Lakewood, N.J., has released its H-20/35 Pro metering units, which use new hybrid heaters for fast heating and temperature stability in hose lengths of up to 410 feet.
The metering units are used to make foam and coatings.
A patent is pending on the heaters, which come in 12,000 watts or 18,000 watts. A new 52-amp hose heating power transformer also helps maintain a constant temperature over long hose lengths, by automatically matching voltage and amperage to the hose length.
Tel. (732) 370-9000, e-mail [email protected]
K-Tron plugs system for batch application
K-Tron International Inc. has introduced a gain-in-weight batching system for use in batch applications involving as many as eight materials and 100 recipes.
The unit can produce batch sizes from 11-1,760 pounds. Each material is sequentially and independently metered to the weighed collection hopper, then the completed batch is discharged.
K-Tron is based in Pitman, N.J.
Tel. (856) 589-0500, fax (856) 589-8113, e-mail [email protected]
Reduction designs Rotoline for lab use
Kent, Ohio-based Reduction Engineering Inc. has introduced a Rotoline rotational molding machine for laboratory use.
Dubbed the Lab 0.50, the machine has a half-meter swing. In a compact size, the machine reproduces full-scale rotomolding for developing and testing raw materials. It can work automatically or manually.
Reduction Engineering sells the Rotoline machines, which are made in Brazil.
Tel. (330) 677-2225, fax (330) 677-4048.