TECHNOLOGY | MATERIALS HANDLING
Right: All ProTec Somos dryers and dosing units are fitted with network-com- patible PLC controllers
same material as conventional hopper designs while reducing hopper volume, drying time and airflow. An integrated dew point equaliser man- ages the speed and revolution of a zeolite-based desiccant cartridge. A direct drive geared motor drives the cartridge rotation and can achieve a stable -52°C (-61.6°F) dew point. The X-Comb is powered by two, high perfor-
model has now been added to the top of the mobile auxiliary dryer range, which can now handle throughputs of 5-150 kg/h. The mobile units, which comprise a dry air generator and single chamber drying bin, are particularly suitable for the versatile pre-processing of frequently changing pellet types. All stationary and mobile RDT and RDM models offer drying temperatures of 60-140°C as standard, with high tempera- ture variants for up to 180°C being available as an option, which can also be retrofitted. According to the company, smart energy-saving systems make the dryers particularly resource-efficient. Drying air volume is matched to through- put and regeneration cycles are con- trolled on the basis of the actual water content of the pellets. The dryers are also
Above: The gravimetric Somos Batchmix from Protec Polymer Processing is Industry 4.0 capable
Right: The X-Comb mini-dryer from Moretto is specifically engineered for use by the medical industry
simple to install, clean and maintain. Integrated dry air conveying for automatically charging process- ing machines is available as an option. Together with further ProTec conveying components, Somos mixers, dosing units and dryers can be combined to form complete materials handling solutions. Moretto has developed the X-Comb mini-dryer, specifically engineered for use by the medical industry where stringent requirements on performance and design are compulsory. The compact design is available in four sizes ranging in throughput from 1.4 – 14.4 kg/h. Applications include small batch and engineering resins. The dryer incorporates Moretto’s OTX hopper technology, which has internal geometry that significantly improves material mass flow and air flow distribution throughout the hopper. The hopper has Spyro shock-proof casing and is capable of treating the
18 INJECTION WORLD | October 2017
mance, VFD driven turbo-compressors; one compressor is dedicated to the process circuit while the second manages the regeneration cycle. A self-adjusting variable air-flow and resin anti- stress control ensure optimal drying and prevent- ing over-drying. The dryer’s filter has been posi- tioned externally and can be easily accessed, without tools, for cleaning. The regeneration exhaust air can be channeled, ensuring that the dryer is suitable for medical and other cleanroom, optical, or technical applications. The company adds that an integrated colour touch-screen control comes as standard with either model of the X-Comb series. The interface allows for quick selection and control of all dryer param- eters. In addition, the control has been adapted to centrally manage an optionally connected Moretto Venturi feeder. Standard RS485 Modbus, Ethernet and USB connectivity options are available and the dryer is compatible with Moretto’s Mowis plant- wide supervisor system. The X-Comb mini-dryer series has been further developed under the umbrella of the Moretto Drying 4.0 initiative for Industry 4.0 readiness. Moretto adds that the compact design of the X-Comb mini-dryer makes it well suited for installation on either the injection machine throat or located to the side. Discharge bases and portable trolleys can be further integrat- ed with the dryer. Motan-Colortronic has developed Spectroflex
V, a volumetric screw dosing unit with flexible polyurethane hopper. The dosing unit is suitable for powder, pellets, regrind, granulate, flakes or fibres. A module exchange system allows rapid changeover when colour, flow proper- ties or grain size change. The company says that the single- and double-screw exchange modules, as well as the easy-to-clean supply hopper, allow fast and easy material changes and so reduce production downtime. A further advantage is that the material loader mounted on the cover of the supply hopper does not have to be removed during the material change. This results in
www.injectionworld.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92
