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Wheeler Boyce Co. offers air amplifier

Rotational molders can use a new air amplifier from Wheeler Boyce Co. to increase wall thicknesses and improve cooling.

The Stow, Ohio, company said that old amplifiers needed a large volume of compressed air, so molders could not run multiple amplifiers on an arm. Other problems included disintegration of the o-ring at high temperatures and changes to the adjustable units during cleaning, which results in changes in air volume and product variations.

The Wheeler Boyce amplifier is preset by a shim, so the same volume of air passed through when it is tightened. The shim gap measurement also means that the unit needs about half pounds-per-square-inch air compression to move the same volume of air as older units.

Tel. (330) 686-1292, fax (330) 686-1582.

Harrel starts selling turnkey extruders

Extrusion systems maker Harrel Inc. is getting into metallocenes.

The East Norwalk, Conn., company is offering turnkey extrusion lines for metallocene resins, which Harrel said shows promise for replacing PVC tubing. Harrel has changed the screws, the die and downstream equipment.

Harrel's patented Tubetrol process controls both the outside and inside diameter of the tubing to close tolerances.

Tel. (203) 866-2573, fax (203) 866-1483 or e-mail

Krupp's new series links blow molders

Krupp Corpoplast Maschinenbau GmbH's new twin series links two blow molding machines together, so that one can be shut down for service while the other keeps running.

The machines share preform feeding and can have simultaneous evacuation of blown bottles.

Hamburg, Germany-based Krupp Corpoplast said the B 250 Twin can mold 25,000 bottles per hour, the B 325 can blow 32,500 an hour, and the B 400 can make 40,000 an hour.

Tel. +49 (201) 188-2823, fax +49 (201) 188-4040.

Equipment producer ships 350th film line

Alpine American reports it recently shipped its 350th blown film line, bringing total installed capacity to more than 1 billion pounds of throughput.

The company, a division of Hosokawa Micron International Inc., also has added a new turret winder for sheet, made at its Natick, Mass., headquarters. The winder comes in various widths and configurations, in single or dual turret.

Alpine also introduced a new high-speed machine for making T-shirt bags at 240 cycles per minute.

Tel. (508) 655-1123, fax (508) 655-9337.

Lakewview Equipment offers hand-fed cutter

Lakeview Equipment Inc.'s Model 300A-1 Tube Cutter is a hand-fed cutter for limited production runs.

The machine cuts tubing from 3/32-inch to 3 inches in length and in diameters up to one-half inch.

Interchangeable bushing/ram sets allow cuts of different lengths and tubing of different diameters. Cut parts are ejected. The cutter, which weighs less than 10 pounds, is pneumatically operated. Lakeview is based

in Glenview, Ill.

Tel. (847) 998-6870, fax (847) 724-6129.

Tri-Matrix producing thermoforming units

Robot maker Tri-Matrix Corp. has started manufacturing roll-fed thermoforming machines at its Bay Shore, N.Y., headquarters.

The company began making thermoformers in late 1996, when Eduard Zimmermann joined as vice president of sales and marketing. Zimmermann had owned long-time thermoforming equipment maker Drypoll Inc. of Flushing, N.Y. Drypoll closed in 1990.

In the mid-1980s, Zimmermann sold a thermoforming machine to Tri-Molded Inc., an injection molder that got into thermoforming. Tri-Matix was spawned when Tri-Molded developed automation systems for its own use, then decided to make robots for general sale. Today Tri-Molded and Tri-Matix

are sister companies.

The Tri-Matix thermoforming machines are designed to form high-speed packaging from sheet.

Zimmermann said Tri-Matix will show an in-line machine, plus new automation equipment for thermoforming, at NPE 1997.

Separately, the company has developed a new line of traverse robots for injection molding. The servo driven robot has an overall parts handling cycle from 6-10 seconds.

Tel. (516) 231-5707, fax (516) 231-6830.

United manufacturing new puller for pipe

United Plastics Machinery Inc. of Exton, Pa., is making a new streamlined puller for pipe from 1/2inch to 4 inches in diameter.

Proper tractioning is achieved by a tandem traction V-belt drive, V-grooves and idler sheaves. Belt heights may be adjusted individually.

Guide rollers are provided on both ends of the pipe passing through the puller.

United Plastics Machinery also has redesigned its belling machine for plastic pipe 24 inches in diameter and larger. Smoother indexing means the pipe moves through the stations faster and more quietly.

Tel. (610) 363-0990, fax (610) 363-0993.

Polymer Systems Inc. develops granulator

Polymer Systems Inc. of Berlin, Conn., has developed a Slow Speed Series of press-side granulators for reclaiming sprues, runners and small parts.

The small granulators run at just 200 revolutions per minute, so the machine generates fewer fines, runs quieter and is less subject to wear. Polymer Systems said it generates high torque like a high-speed granulator, but has a motor about 40 percent smaller.

The granulator is just 54 inches tall, when set up with a robot feed.

Tel. (860) 828-0541, fax (860) 829-1313.