By Susan Iorfida
The AUTO 700LS press series of granulators from Cumberland Engineering provides performance and service for the most demanding requirements of automated, high-volume production processes.Standard desi...
The AUTO 700LS press series of granulators from Cumberland Engineering provides performance and service for the most demanding requirements of automated, high-volume production processes.
Standard design features include a special, oversized vacuum bin with a nominal surge capacity of more than one cubic foot and dual-level sensors for precision system control. This discharge design provides trouble-free material conveyance.
A newly designed cutting chamber provides maximum performance using minimum horsepower. The chamber’s rotating side-end disks minimize heat buildup and reduce dust and fines.
Polytech Machinery Ltd.
Versatile loader controller
The Novatec Micro-PLC provides economical control of vacuum loaders and purge valves in material conveying systems.
The Micro-PLC includes complete programming and monitoring capabilities for load/unload cycles, adjustable filter cleaning pulses and, on proportioning models, the pre-setting of both material proportions and the desired layering of the material conveyed.
The Micro-PLC can be programmed to operate an external proportioning valve, which converts single inlet loaders to proportioning units for multi-material applications.
Polytech Machinery Ltd.
Stable, accurate injection molding
Tuparl series injection molding machines from Sodick with the company’s V-line System ensure very stable injection from low to high speeds. In order to achieve super-precise molding, the V-line System is equipped with a high response valve, which monitors speed and pressure changes.
The direct shut-off screw mechanism is adopted by eliminating a check valve. After plasticizing and sending the melted plastic into the injection chamber, the screw tip is then pushed forward in order to prevent any backflow.
Tuparl machines can accurately control injection speeds in the range of 0.1 to 1500 mm/sec.
Sodick Inc. 310/320-4792
Water-assisted injection molding
Ferromatik Milacron introduced water-assisted injection molding and other high-performance technologies and machines at its Injection Molding 2000 open house in Malterdingen, Germany this fall. On display was Water Injection Technology (WIT) — a close relative of gas-assist molding that offers the advantages of a non-compressible fluid that also aids in rapid part cooling. WIT was developed by IKV of Aachen.
WIT aims to decrease cooling times and wall-thickness compared to gas-assisted injection molding and to allow for larger part diameters. IKV’s process is carried out in such a way that (cold) water displaces the melt like a piston without evaporation of the water.