Vecoplan LLC, a maker of heavy-duty grinders, said its new HiTorc drive system replaces mechanical-wear parts like gear reducers, belt drives, fluid couplings and motor bushings with an electromagnetic direct-drive system.
That means there is nothing to adjust, break or replace. Vecoplan also claims the drive delivers maximum torque and power, under all conditions, regardless of rotor speed.
The rotor starts, stops and reverses in just two seconds, it said.
The company also is offering:
* A new, high-powered control panel called the IPC that uses video to demonstrate trouble-shooting and offers greatly expanded features for maintenance and scheduling.
* A new, mobile shredder for the booming document-destruction market, mounted on a truck that sports a lightweight body made using pultruded composites - the first composite truck body from Martin Marietta Composites Inc.
The electromagnetic-drive HiTorc gets a jolt of high-torque power instantly, according to Vecoplan.
Immediately upon starting, the rotation axis receives 300 percent torque, then levels off at 100 percent torque at 50 percent of rotor revolutions per minute, and continues at that torque through 150 percent of rotor speed.
Even at 200 percent rotor speed, HiTorc still delivers 50 percent torque, the company said.
The wide speed range and very high speeds HiTorc can achieve set it apart, according to Vecoplan.
Conventional drive motors for grinders have a usable speed range up to 100 percent, with little or no control of actual rpm. The Vecoplan drive delivers a usable rotor speed range from zero to 200 percent, with total control of speed.
Speed control can be achieved manually by the operator or automatically through computer controls linked to sensors within the machine.
HiTorc also makes it possible to network entire processing lines together, including equipment in front of and behind the grinder, as it synchronizes the line.
Vecoplan also said the motor converts electrical power to torque at 100 percent efficiency upon start-up.
Conventional drives start at 32 percent efficiency. The level of speed control allows each company to limit the maximum current draw, and torque, according to the rating of its electrical service.
Vecoplan was formed in 2000, when ReTech Industries Inc. of High Point merged with Vecoplan Maschinenfabrik GmbH & Co. of Bad Marienberg, Germany. The U.S. operation employs 30 people in a 32,000-square-foot plant. Vecoplan employs about 250 in Germany.
Marty Kennedy, executive vice president, said the company's goal is to sell about 300 of its single-shaft rotary grinders a year.
Markets include plastics and wood scrap recycling, electronic scrap recycling and the waste-to-energy industry.
These are some big machines. During a recent sales meeting held in High Point, Vecoplan employees wowed visitors by grinding up bowling balls and, at one point, pulverizing several wood pallets.
Also at the plant, Vecoplan showed off the new Windows-based IPC controller, which features much higher power than the earlier model.
``This one is a true computer,'' said Marc Parsons, who worked with Todd Carswell to develop the IPC.
The main menu of the touch-screen controller gives direct access to all operations.
The IPC can show wiring diagrams and a comprehensive input/output display that shows how the machine actually is operating.
When the operator has questions, instead of a static photograph, the controller shows a video.
A replacement-parts menu lists all wear parts, and a full part list for that particular grinder. A maintenance schedule is broken down into daily, weekly, monthly and yearly procedures.
The company also showed off its shredder mounted inside a truck. The truck pulls up at the customer site - a hospital, for example - and documents are fed into the shredder.
This paper-destruction truck has a high-tech plastics angle. The grinder, which is mounted behind the cab, is very heavy, so Vecoplan needed a truck body that was both lightweight and sturdy.
Enter Raleigh, N.C.-based Martin Marietta Composites. Known for its composite bridge decks, the company is expanding into commercial truck trailers, where it promotes composites as a replacement for steel and aluminum.
Martin Marietta Composites has a plant that makes bridge decks and truck trailers in Sparta, N.C.
The company has made truck trailers before, but this is its first truck body made of composites, said Richard Smallwood, trailer sales manager. The entire undercarriage is made of pultruded components, as are the walls of the truck box.
Another North Carolina company - rotational molder Toter Inc. of Statesville - makes the plastic bins and the lifting mechanism that raises the full containers up and dumps them into the grinder.
For security, a camera mounted inside the truck records the shredding process, which is run by a controller mounted on the truck.