Plastics News staff reporter Sarah S. Smith gathered the following items at Plastics USA, held Oct. 6-8 in Chicago.
Krupp Werner touts ZSK 50 Mega extruder
CHICAGO — Krupp Werner & Pfleiderer introduced its new ZSK 50 Mega co-rotating twin-screw extruder at Plastics USA in Chicago.
The 50-millimeter machine fills a size niche between the ZSK 40 and the ZSK 58. It features a simple design with tie rods instead of individually bolted, flanged barrels, plus a patent-pending torque-setting mechanism and a touch-screen control panel.
The new, block-style barrels, coupled with the tie-rod design, make it easier to reconfigure the barrel, according to the Ramsey, N.J.-based company.
The new barrel support makes alignment a simple task by virtue of a three-point mount on the base frame. The gearbox, with a direct-flanged motor, also has a simplified system for mounting. Improved splined shaft geometry increases power transmission capabilities.
The ZSK 50 Megacompounder uses cartridge heaters rather than external heater shells for more-efficient heat transfer and uniform heat delivery. The machine also offers torque per shaft of 815 newtons per meter and an operating pressure of 2,900 pounds per square inch.
An advanced alternating-current, variable-speed flux vector drive system provides standard speed turndown ratios of 10:1. The high speeds can provide constant torque over the entire range, from 120-1,200 rotations per minute. The AC-drive motor on the ZSK 50 Megacompounder has a range of 75-300 horsepower, depending on the maximum screw speed selected.
The design also is the basis for the ZSK 25 World Lab Extruder and the newly redesigned ZSK 40 Megacompounder. Used in the continuous processing of polymers and other viscous materials, the ZSK 40 and ZSK 50 extruders are ideal for small to medium-size lot production of 100 to more than 2,000 pounds per hour, as well as for basic research and development of new products.
Xaloy guarantees its new X-802 barrel
Xaloy Inc.'s X-802 next-generation tungsten carbide composite barrel made its debut at Plastics USA in Chicago.
``X-802 comes with the industry's first full-replacement wear warranty with no pro-rated charges,'' H. Gunther Hoyt, vice president of marketing, said in a news release.
If an X-802 barrel operated within broadly defined conditions shows more than 0.01 inch of wear during its first three years of operation, Xaloy will exchange it for a new unit. The warranty applies to barrels operating at temperatures as high as 800§ F and running nearly all plastic compounds, including those with as much as 50 percent filler content.
Xaloy is based in Pulaski, Va.
Hunkar Laboratories offers new software
Hunkar Laboratories Inc. introduced several new products at Plastics USA in Chicago.
The Source 3100 Parison Programmer, a replacement for the 24-year-old 311 Programmer, includes a color touch-screen interface and features production reporting and network com- munications.
The Maintenance Messenger is a Windows-based program that includes features such as Exception Alert, which notifies maintenance personnel when a significant process problem occurs. The program informs personnel which machine is having problems and helps diagnose the specific difficulty.
Source 1.2, Hunkar's latest plantwide network system, has integral features for connectivity to all production areas of the plant. It possesses additional production analysis and expanded flexibility.
The Sentinel networks machine and process monitor and Shot Stopper cavity-pressure control use Hunkar's infrared communication with a palm-top display for set points, alarms and information.
Hunkar is based in Cincinnati.
N.J. firm introduces all-electronic press
Permanent Label Corp. introduced what it claims is the first all-electronic, vertical hot-stamping and heat-transfer press at Plastics USA in Chicago.
The ES Press requires no compressed air. Upstroke speeds, dwell times and print parameters are entered and can be read back in units of inches per minute, millisecond and pound of force. With each print cycle, the servo-controlled press will repeat the exact print motion with the exact speed and accuracy as the previous print motion. The servo motors provide 0.0001-inch stroke resolution. Head stroke lengths can be varied in increments as small as 0.0001 inch without any mechanical adjustments.
All functions are programmable on the ES Press and as many as 124 decorating set-up programs may be stored. Pressures range from one-quarter to 6 tons. The press can hot-stamp or heat-transfer label a platen area as large as 16 inches square.
Clifton, N.J.-based Permanent Label has 45 years of experience in hot stamping and 15 years in building electronic servo-driven hot-stamping and heat-transfer labeling machines.