Reimelt compounder running wood plastic
Reimelt Henschel MischSysteme GmbH has developed its first compounding line specifically to run highly filled wood-plastic composites and sold it to eco-Profil NV.
Eco-Profil is using the compounder to extrude, with in-line compounding, wood-plastic terrace decking at its plant in Upper Franconia, Germany. The production line includes an RHC 95 compounder with co-rotating twin screws and an ESE 180 single-screw melt extruder.
The closely intermeshing screws have a diameter of 95 millimeters, or about 3.8 inches. The outer-to-inner diameter ratio is 1.66, giving the twin-screw extruder a large free volume. That features allows high output even at low screw speeds and an optimum residence time for a gentle compounding of the material.
Pre-dried wood flour is fed into the compounding extruder's melting zone through a twin-screw side feeder.
Reimelt Henschel is based in Kassel, Germany.
Tel. 49-5-618-01-6859, fax 49-5-618-01-6943, e-mail brunkau [email protected]
AccuDispense offers economic dispensing
Atlanta-based auxiliary equipment maker Process Control Corp. has introduced AccuDispense, an economical, single-dose gravimetric dispensing system.
AccuDispense delivers a pre-selected weight of free-flowing material, directly to the production process.
The unit is designed for use when you need to obtain pre-weighted doses of material that do not need to be blended but require accurate metering and dispensing. AccuDispense is based on Process Control's Guardian batch blenders, sharing the same mechanics, controls and software.
The supply hopper and feed gate are mounted above the weigh hopper. A programmable controller activates the pneumatic gate feeder, to begin loading material into the weigh hopper at a maximum feed rate. For greater accuracy, the load cell sends weight-gain information to the controller, which steps down the rate of feed before it reaches the desired weight.
Tel. 770-449-8810, fax 770-449-5445, e-mail [email protected] .com.
Cincinnati offering pipe-making system
Cincinnati Extrusion GmbH said its KryoSys is a new system to make polyolefin pipe.
The machine combines a high-speed extruder with a newly developed pipe die, called the KryoS die, plus a very efficient cooling section and a heat-recovery system, according to the company in Vienna, Austria.
KryoSys lines are designed to produce smooth-wall single- and multilayer pipe from polyethylene or polypropylene, in diameters from 4.4 inches to 80 inches. They also are suitable for the extrusion of corrugated pipes, Cincinnati Extrusion said.
A key component, the spiral-mandrel pipe die, features an innovation that begins cooling the melt inside the die. This cuts in half the length of the cooling section required and reduces energy consumption by up to 30 percent. The lower melt temperature also brings a significant increase in viscosity when the melt comes from the die, which counteracts the tendency to sag, especially in thick-wall pipe.
The KryS die also features a large internal aperture, which allows air cooling for the extruded melt.
The extruder maker's U.S. subsidiary, Cincinnati Extrusion Inc., is in McPherson, Kan.
Tel. 859-746-1530, fax 859-371-4534, e-mail [email protected]
Aurex device boasts accurate calculations
Inoex GmbH reports that its Aurex digital ultrasonic measuring technology now can be used on multilayer foam-core pipes made from PVC and polypropylene.
The internal air bubbles on foam-core pipe can make it difficult to measure the pipe, since the bubbles reflect ultrasonic signals.
Inoex has developed control algorithms that tune out these overlapping ultrasonic echoes, to accurately calculate wall thickness of each layer.
Aurex uses a series of fixed sensors to continuously measure pipe wall thickness, diameter, shape and layer thickness.
Inoex is based in Bad Oeyhausen, Germany. Its U.S. unit, Inoex LLC, is in Lancaster, Pa.
Tel. 717-672-0870, fax 717-672-0872, e-mail [email protected]
Versa enhances its cutter/puller unit
Versa Machinery Inc. of Elkhart, Ind., has expanded the cutting range of its Model 50 flywheel cutter/puller, which uses up to eight knives to cut extruded plastic or rubber parts at very high rates.
Model 50 machines now can run at a cutting rate from 75 to 12,000 parts per minute including small parts like washers and spaces. The machines are available with either pinch roll or caterpillar puller assemblies.
Tel. 574-266-0780, fax 574-266-0762, e-mail [email protected] ery.com.
Rival sleeves slated for North America
Rival A/S, a Danish maker of adjustable calibrating sleeves for pipe extrusion, has developed a sleeve specifically for the North American market.
The sleeve features a 10 percent adjustment area. It adjusts for changes in pipe diameter caused by variations in production, such as material thicknesses, raw materials, extruder output, production line speeds, cooling and vacuum levels.
The sleeve allows pipe makers to increase the extrusion speed, without affecting quality. They also can change from one pressure class to another, or from one material to another, without stopping production, according to Rival, headquartered in Skanderborg, Denmark.
Tel. 45-87-88-55-51, e-mail [email protected] rival.dk.
Modular slitter/winder can reduce downtime
Davis-Standard LLC said its Modulant slitter/winder installed in a customer's plant limits downtime and significantly improves roll quality. The undisclosed customer is using the winder to make extrusion-coated materials for the fluid-packaging industry.
As the name suggests, the Modulant has a modular design. It was engineered for high-production, shaftless slitting and winding of roll diameters up to 75 inches, at speeds up to 6,000 feet per minute.
Davis-Standard is based in Pawcatuck, Conn.
Tel. 860-599-1010, e-mail [email protected]
Novatec controllers highly expandable
Novatec Inc. said its new FlexMaster series of controllers for conveying plastic raw materials can be easily expanded to include dozens of additional receivers, as well as pumps and purge valves, but it can be operated without special training.
FlexMaster also can be remotely accessed via an Ethernet connection, said Chuck Morgan, resin-handling business director. It can even e-mail alarms to any e-mail account on a personal computer, Blackberry device or smart phone.
The color touch-screen control panel, in its basic configuration, is hard-wired to as many as five vacuum pumps, 32 material receivers and 25 purge valves. Flexmaster can be expanded to add as many as 88 more receivers, 15 pumps and 64 purge valves.
Novatec is based in Baltimore.
Tel. 410-789-4811, fax 410-789-4638, e-mail [email protected]