About Tech-Roll, Inc and the Motorized Pulley

The motorized pulley was first developed by Hansson Mechanical Systems which was formed and incorporated in 1982 by Ulf Hansson, president and owner.  The principal business was consulting in the field of mechanical engineering, in particular with respect to refrigeration and food processing equipment and project management. The main business area was the emerging bottom fishing industry in Seattle and Alaska.  The company designed several fish processing vessel and factory floors. In 1984, Hansson Mechanical Systems, Inc. developed the first electric industrial crabcooker for use onboard catcher vessels, which make
them independent from processing plants. 
The crabcooker has since become the norm for crab processing on board catcher vessels, with hundreds sold.

Other proprietary designs include high-pressure water crab cleaning machines and brine freezers.  In 1987, Mr. Hansson, while maintaining the company, was hired as vice president of Sabroe Refrigeration US, a Danish refrigeration company.  Mr. Hansson was later made president of a Sabroe subsidiary, Carnitech US Inc.  In 1996, he decided to devote full time to the idea of an internally driven, hydraulic motorized pulley, the Tech-Roll.  A patent was first applied for in March of 1996, with subsequent applications for an improved version of the motorized pulley in October 1997.  The patent has now been granted.

The present main business of Hansson Mechanical Systems is in the wholesale of proprietary goods such as heaters and control systems for crabcookers. 

The Tech-Roll motorized pulley or drum motor is being marketed & sold under it's own company name--Tech-Roll, Inc., and is manufactured in the United States.