SHOW PREVIEW | CHINAPLAS 2018
n a camless motion system that reaches up to 50 cycles/minute in production, guaranteeing efficien- cy and speed; and, n upper and lower platens with an interface that is designed to receive most of the existing tools.
Feeding time Coperion K-Tron will highlight a range of materials handling technologies at Chinaplas, including a quick-change feeder and a pump for conveying solid material. Its K2-ML-D5-T35/S60 Quick Change (QC)
Below: Ettlinger says its ERF350 sets a new bench- mark in melt filtration
feeder features its ActiFlow bulk solids activator and Electronic Pressure Compensation (EPC), combined with a 2400 Series vacuum receiver for refill. The T35/S60 is aimed at applications requir- ing fast changeover of materials, and fast cleaning. The entire feeding module can be removed, and replaced with a second unit. The removed module can be transported to a cleaning facility for further disassembly and cleaning, before being prepared for another material. Twin- and single-screw feeding modules are available: single-screw feeding units handle free flowing powders, granules, pellets and other non-flooding materials; twin-screw units are ideal for floodable powders and more difficult, sticky or hard-to-flow materials. The D5 platform scale features smart force transducer weighing technol- ogy to ensure the correct amount of material is fed into the process – maximising end product quality and minimising waste. The ActiFlow smart bulk solids activator offers an
innovative method to reliably prevent bridging and rat-holing of cohesive bulk materials in stainless steel hoppers without internal hopper agitation. It is a non-product contact device, consisting of a patent-pending vibratory drive and intelligent control unit, designed specifically to work with Coperion K-Tron’s line of gravimetric loss-in-weight feeders. Together with the ActiFlow control unit, it continuously activates the material inside the hopper with an optimised frequency
and amplitude, without exerting any mechanical force on the bulk material. The T35 is also equipped with
EPC, for loss-in-weight feeders, which ensures accurate and steady pressure compensation in feeder hoppers and outlets.
48 FILM & SHEET EXTRUSION | April 2018
At the same time, the company’s K-ML-BSP-
150-S Bulk Solids Pump (BSP) feeder offers gentle feeding of free-flowing granular materials. It does not use the usual screws/augers, belts or vibratory trays, but instead uses positive displacement action to feed free flowing materials with high accuracy, offering uniform discharge, consistent volume and gentle handling. With no pockets or screws and only one moving
part, the compact feeder can be cleaned in seconds. It feeds from 34 to 6700 dm3
/h [1.2 to 237 ft3 /h] using five feeding discs to create four feeding ducts.
China focus Davis-Standard will promote its recent expansion and equipment innovation, including its strengths in Suzhou. “Our location in Suzhou has been instrumental
to our growth in China,” said Sekaran Murugaiah, Davis-Standard vice president of business develop- ment in Asia. “One customer has made us their preferred extruder provider due to our regional presence and consistent equipment performance.” At the same time, the company’s latest DSX
Flex-Pack model, the 300S, is a single-station extrusion and lamination line with benefits specifi- cally engineered for the Asian flexible packaging market. It was designed by Davis-Standard teams in the USA, Germany and China to ensure that pricing, machine footprint, speeds and output, and the ability to make shorter runs would accommo- date the demands of converters. In addition, Davis-Standard offers a tandem configuration of the machine called the DSX Flex-Pack 300T for the Asian flexible packaging market. The company plans to have its first DSX Flex-
Pack 300S demonstrated during a customer open house in Suzhou in the fourth quarter of 2018. Davis-Standard also anticipates that its new stretch film line with DS S3 winder will be beneficial to Asian converters. The line is engineered for producing thin films from 31- to 51-gauge (7.8 to 13 microns) at high speeds. Its side-by-side DS S3 overlapping winder is essential to this. It enables maximum slit widths for hand-wrap, machine-wrap and jumbo rolls, supporting multiple market segments on one winder. Films discharge out the front of the line to a common side, which simplifies roll packing and future automation. Cores are also same-side loaded from the back to prevent disruption of packing activities. An auxiliary lay-on roll eliminates top-wind waste during transfer, optimising roll quality and eliminating outer wrap transfer waste. All features are advantageous for high-grade film operations, says the company.
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