MATERIALS HANDLING | MACHINERY
Materials handling: highlights at NPE
Among the technologies on show at NPE 2018 are an updated vacuum conveyor, a bulk material mixer for gentle homogenisation and a system for small-volume plastics processing
Materials handling devices will form a small sub-set of the technologies on show at this month’s NPE show in Orlando, Florida. Items on show include a redesigned vacuum conveyor, a bulk material mixer that offers gentle homogenisation and a raw materials handling device that is designed for small-volume plastics processing.
Feeding frenzy Coperion and Coperion K-Tron will present a variety of feeding, conveying, bulk material handling components and solutions for plastics processing, including a USA-manufactured Coperion ZRD rotary valve – which will significantly shorten delivery times for bulk solids industry customers – and the new Mix-A-Lot bulk material mixer for high-speed, gentle homogenisation of fed material. In order to shorten delivery times for customers
in the Americas, Coperion K-Tron has started US production of German-designed Coperion rotary valves type ZRD. Local production, along with an investment of stocked inventory, will allow the company to deliver and repair valves for the local market much more quickly. Standard grey cast iron and stainless steel ZRD
rotary valves will now be available to customers within four to six weeks, says the company. The ZRD rotary valve is designed for plastics,
mineral, chemical and food applications. It is engineered for heavy-duty industrial service with pressure differentials up to 21 PSI(g) [1.5 bar(g)] and temperatures up to 100°C (212F), though higher
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temperature options are available. The ZRD is often used as a discharging and metering valve for conveying products in powder and granular form. A range of sizes is available, with
throughputs ranging from 500 to 400,000 lbs/hour. The valves have a pressure shock rating of 145 PSI(g) [10 bar(g)], and are suitable for isolation according to NFPA standards (for select sizes up to 12in). The ZRD comes standard with air purged seals completely mounted with plastic or stainless steel tubing, solenoid and filter regulator with gauge. The new Mix-A-Lot ensures efficient, high-speed and gentle homogenisation of fed material. The accessible, easy-to-clean mixer is available in three sizes for throughput rates up to 5 tonnes/h, and there is also an ATEX version. The surface of the mixing chamber can be electro polished.
Towering performance Maguire Products will introduce its MMT Micro Tower – a raw material handling device for small- volume plastics processing that combines loading, dosing, mixing, and dispensing into one system, governed by a single controller. It mixes up to three materials – such as virgin
resin, regrind, and masterbatch – in 10lbs (4.5kg) batches for extrusion processes with throughputs up to 100lbs (45kg) per hour. The compact tower mounts at the throat of the processing machine, with no floor space required for a vacuum pump.
Main image: Maguire’s MMT combines several pieces of equipment into a single machine
� May 2018 | FILM & SHEET EXTRUSION 37
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