MACHINERY | MATERIALS HANDLING
The controllers play an important role in the
reliability and stability of the dosing process, says Movacolor. They do not require external ventila- tion, which ensures a reliable operation in even challenging environments. The controller can operate up to 15 gravimetric units in any configura- tion. Any change of dosing units can be configured simply without any software cost. The controller can interface with almost all machine controllers or central monitoring systems, and fully integrates with the company’s MCSmart monitoring and control software.
Small quantity dosing Moretto has introduced the DPK continuous loss-in-weight colour feeder, which is suitable for dosing small quantities of colour or additives into a flow of base material.
The masterbatch or additive to be dosed is contained in a hopper made of transparent, shock-resistant acrylic that makes the material contained and the level of the load immediately visible. The hopper is easily removed without tools for replenish- ment or additive change. The company says that
precision is guaranteed, even at low rates. The load cell technology and control algorithm
Above: The KCM-III controller offers several new features and improved feeding accuracy, says Coperion
make DPK immune to vibrations, allowing higher dosage precision without risk of overdosing the additive or masterbatch, says Moretto. The control of the dosing unit is supplied with a
simple, intuitive touchscreen interface, where it is possible to store and recall product recipes. DPK has ethernet, RS485 connections and is arranged for Mowis.
Feeder control Coperion K-Tron has launched the latest genera- tion of its KCM feeder controller. The KCM-III has a number of new features, including a larger 5in LCD screen, context-sensitive help, stainless steel enclosure and built-in Ethernet capability with optional Wi-Fi.
With Ethernet capability, the KCM-III can be accessed via a web page that includes a full feature user interface. In addition, the KCM-III is ready for Industry 4.0 functions such as predictive mainte- nance and overall equipment effectiveness. The controller combines the motor drive and control modules of a feeder and its ancillary
32 PIPE & PROFILE EXTRUSION | October 2020
components into a single component. It is typically mounted directly at the feeder, pre-wired and pre-tested at the factory. Motor set-up, diagnostics, and operator interface functions are integrated into the user interface. Each KCM-III includes a com- plete software package to support a wide variety of application types, both batch and continuous, from loss-in-weight feeders to weigh belt feeders to Smart Flow Meters. It is rated for ATEX 3D environ- ments and listed for NEC Class II Division 2 hazardous areas. “An improved graphical user interface and new
programming make the KCM-III easier to use and the expanded connectivity options give the user more options for controlling their process,” said Franz Neuner, director of product management, equipment and systems at Coperion. KCM-III has extended memory, allowing storage
of more log and event files, trace and process data. Seven days of traceability are included as standard but extended traceability is available as part of an optional software bundle. Improved control algorithms provide faster communication with the feeder drive, weighing system, and auxiliary equipment and result in more precise control. Smart Force Transducer (SFT) load cells give KCM-III a weighing resolution of 8,000,000:1 in 20 ms, says the company. KCM-III currently supports over a dozen lan-
guages, including graphical languages such as Japanese, Chinese and Korean.
High throughput Maguire Products says that its Weigh Scale Blender (WSB) 1200 series gravimetric blenders are ideal for larger-throughput applications – help- ing processors to incorporate more regrind into their products. The blenders dispense up to 12 different
materials and can be configured to dose up to six major ingredients – including virgin polymer, regrind and post-consumer resin (PCR). The WSB 1200 series has a throughput range of 900 to 2,040 kg/hr (2,000 to 4,500 lbs/hr) and is suitable for extrusion and other processes. It is the latest addition to Maguire’s WSB product range, which already includes over 120 models with throughputs ranging from 40 to 5,500 kg/hr (90 to 12,125 lbs/hr). They have accuracy of ±0.1% for every material dispensed into the weigh chamber. “By providing the same capability as the 2400 and 3000 Series units for dispensing up to six large-component ingredients, the WSB 1200 series blenders enable processors working in a smaller
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