Reference Data

With nearly 50 years in the business, we have a lot of nifty old-school diagrams on material handling physics. Check out this quick primer on the mechanical advantage created by different wire rope configurations on wire rope hoists. More
Sveda-Crane Statement Of Compliance More
ANSI Requirements for Overhead and Gantry Cranes More
The following article is provided to give the reader an idea of the relative signifigance of the duty cycle ratings for the various electric hoists.  The duty cycle determination for a particular application involves obtaining a significant amount of additional information and expertly applying it to the intended use.  Please consult our application experts before making any duty cycle decisions.  This table is given for reference only. More
Ratings and calculations to specify the average daily operating Time of a hoist. More

Two Daily Checklists for Hoist and Crane Operators. See the "Documents" section for printable PDF versions.

The National Electrical Code (NEC) defines hazardous locations as those areas "where fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids, combustible dust, or ignitable fibers or flyings."

A substantial part of the NEC is devoted to the discussion of hazardous locations. That's because electrical equipment can become a source of ignition in these volatile areas. This Article provides classification and installation standards for the use of electrical equipment in these locations. The writers of the NEC developed a short-hand method of describing areas classified as hazardous locations. More

It is not possible to state that an IP rating is equivalent to a NEMA Type designation. An IP rating only considers protection against ingress of solid foreign objects and ingress of water. The NEMA Types consider these but also consider other items such as corrosions and construction details. For this reason it is possible to say that a NEMA Type is equivalent to an IP rating but it is not possible to state that an IP rating is equivalent to a NEMA Type. There is no direct conversion between NEMA Types and IP Codes. More detailed information can be obtained from the charts in this article.

Operator checklist when using hoists & cranes More
OSHA Crane Regulations More

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